-------
Creation of Fuel Indicators - The spreadsheet contains no fuel information. The fuel
was only known to be diesel fuel. Therefore, the following fuel indicators were created and
assigned the appropriate values for diesel fuel.
oxygenate
rvp
fuel id
fuelcat
'NONE'
wt oxygen
0
0
(null)
(null)
'DO'
rvpind
oxyind
fueltype
D'
DIES'
Air Conditioning Operation (aeon) - No data was available for the status of the air
conditioner during the tests. Since the protocols for the tests state that all accessories should be
turned off, we assumed that the air conditioner was off and assigned aeon to equal 0.
Res kind- All res kind were set to equal 'DYNOTEST'.
C02 Emissions (co2) - The HDSS contained emission data (in grams per mile) for CO,
NOx, HC, and PM, but not for C02. C02 emissions (g C02/mile) were calculated using
Equation 3-3 using a fuel carbon density for diesel fuel of 2778 g C/gal.
Sched id-EPA informed us that the driving cycles HDT, HDTT, and Test D, found in
the HDSS, are all equal to the driving cycle UDDS D. The values for the sched id were
changed accordingly.
Aspirated - The values for the aspiration of the engine had to be modified to fit the
allowable values for the aspirated field. The allowable values are NATURAL, SUPER,
CHARGED, and TURBO.
Road hp - Many of the records for the diesel vehicle tests in the MSOD data and all
records in the HDSS data did not contain values for the road hp. This field is used in the
calculation of the total power for each vehicle test. We decided that it would be best to create an
estimate for road hp so that we could use as much of the diesel data as possible in the analysis.
We expected that road hp would be approximately proportional to testwght. The plot of
road hp vs. testwght in Figure 3-1 of existing data for diesel vehicles showed a good
relationship. Unfortunately, the high testwght portion of the relationship is defined by only eight
data points. Nevertheless, we fit a quadratic curve with a zero intercept value to the diesel data.
Figure 3-1 shows the fitted curve with 95 % confidence intervals for the individual values plotted
3-20
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on top of the available data of testwght and road hp. The equation was used to estimate the
missing road hp values for all diesel vehicles (but not for gasoline vehicles):
road hp = 2.8779 * (¦
testwght
¦)-0.01486 *(¦
testwght 2
1000 ^
) Equation 3-8
1000
To check the relationship, the plot of road hp vs. testwght is shown in Figure 3-2 for
gasoline vehicles. While this data is located at low testwght, it confirms the diesel road hp
relationship shown by the solid line since the trends of the line and the data points are in
reasonable agreement.
Emission Standards (hclimitcat, colimtcat) and Emitter Status (hchigh, cohigh) - The
emission standards for most diesel vehicle observations in the MSOD and HDSS datasets were
missing. The standards for these observations were needed to determine if each vehicle was a
normal or high CO and HC emitter.
The first step in determining the standards was to determine the federal standard category
for each vehicle. All vehicles in the HDSS were HDVs since the GVWRs were all greater than
11,000 pounds. The federal standard category of diesel vehicles in the MSOD were determined
using the following process. First, if the MSOD variable vehclass had a value of 'LDV' or
'CAR' then the federal standard category was set to 'LDV'. Otherwise, the determination of the
federal standard category for the remaining vehicles, which were trucks, was based on model
year and GVWR. For the remaining vehicles with model years 1978 and earlier, vehicles with
GVWRs less than or equal to 6,000 pounds were assigned federal standard categories of LDT. If
1978 and earlier trucks had GVWRs greater than 6,000 pounds their federal standard category
was HDV. For trucks with model years 1979 and newer and GVWRs less than or equal to 8,500
pounds, the federal standard category was set to 'LDT'. For 1979 and newer trucks with
GVWRs greater than 8,500 pounds, the federal standard category was set to 'HDV'. During
these federal standard category assignments, if model year or GVWR was missing, the federal
standard category was set to missing.
3-21
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Figure 3-1. Comparison of roadhp and testwght for Diesel Vehicles
Diesel Vehicles
140
f'-'
''
12a
100
y s""
+
90
/V>'
90
/' / X'
/ x
/' / /
40
/'
/ /'
/ /
/ /
20
/
V
y
s
a
testwght (lbs)
/camwheels/cam/epaco2ch4/roadhp.sas
Figure 3-2. Comparison of road hp and testwght for Gasoline Vehicles
1
a
e
Ciasoline V eludes
1000 20DO 3000 4000 BOOO 6000 7000 §000
testwght (lbs)
/camwheels/cam/epaco2ch4/roadhp.sas
3-22
-------
Once the federal standard category was determined, the estimated HC and CO standards
were looked up using Table 3-11. The values for this table were obtained from the fourth edition
(1985) of AP-42. That document provided HDV limits for some model year groups on a 13
Mode Test basis and for other model year groups on a Transient Test basis. For Table 3-11 we
have attempted to express all limits on a Transient Test basis.
Table 3-11. Diesel Emission Limits
Federal Standard
Model Year
HC Limit
CO Limit
Category
LDV
Before 75
None
None
75-79
1.5 g/mile
15 g/mile
80
0.41 g/mile
7 g/mile
81-93
0.41 g/mile
3.4 g/mile
94-02
0.41 g/mile
3.4 g/mile
LDT
Before 76
None
None
76-78
2.0 g/mile
20 g/mile
79-83
1.7 g/mile
18 g/mile
84-02
0.8 g/mile
10 g/mile
HDV
Before 74
None
None
74-78
None
65 g/bhp-hr (est.)
79-84
1.5 g/bhp-hr
25 g/bhp-hr
85-02
1.3 g/bhp-hr
15.5 g/bhp-hr
The emission limits for LDVs and LDTs have units of grams per mile. On the other
hand, the HDV emission limits have units of g/bhp-hr. To determine whether an LDV or LDT
was a normal or high HC or CO emitter, the emissions measurement for an FTP or IM240 test
was compared with its emission limit {hclimit, colimit) as has been described earlier. However,
for HDVs, the HC and CO emissions are expressed in grams per mile but the limits are in g/bhp-
hr. To determine whether an HDV was a normal or high emitter, the emission limits given in
Table 3-11 were converted to a g/mile basis using the total work for the cycle used to arrive at
the emissions result and the total miles of the cycle:
1 hp - hr ^ totwork
mile hp - hr I 3600 hp - s
total miles
where totwork has units of hp-s and total miles has units of miles.
3-23
-------
In all cases, if the measured emissions was greater than a factor of 2 for HC and 3 for CO
than the appropriate emission limit, then the value of hchigh or cohigh was set to 1. Otherwise,
their respective values were set to 0 to indicate a normal emitter.
New variables to indicate the category for the HC and CO limits were created to
distinguish those for gasoline-fueled vehicles and diesel-fueled vehicles. The variables
hclimitcat and colimitcat were created by concatenating 'D_' and 'G_' with the value of the
standard in the original units from either the MSOD database or from Table 3-11. For example,
a diesel-fueled HDV with an emission limit of 25 g/bhp-hr for CO would have a colimitcat of
'D_25\
Power Variables (pi, p2, p3, p4, avgtotpower) - The table sched pi contains detailed
second by second data on many of the drive cycles used to test the vehicles. The speed versus
time portion of this table was used in the calculation of pi, p2, p3, p4, totwork, and avgtotpower.
Several of the diesel tests contained in the MSOD and the HDSS were missing data that defined
their driving cycles. With the help of EPA and Nigel Clark of West Virginia University, we
were able to locate driving cycle speed schedules for some of the driving cycles and included
them in the analysis.
During discussions with Nigel Clark and EPA, it was decided that we would not use
some of the diesel driving cycles for this analysis. These cycles, such as the West Virginia Test
cycle, do not always follow a predefined speed trace. Instead, portions of the driving cycle
request that the vehicle go to the higher speed as soon as possible. With this type of cycle, the
resulting speed versus time trace for each test depends on the performance of each individual
vehicle. Due to this, it is not possible to use the idealized speed trace to calculate any of the
power variables.
Table 3-12 shows the diesel driving cycles from the HDSS. The driving schedules for
two cycles could not be found. The data from four schedules were not used in this study. Once
the available driving cycle schedules were obtained, the values for pi, p2, p3, p4, totwork, and
avgtotpower were calculated as described previously.
3-24
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Table 3-12. Driving Cycles of the HDSS
Drive Cycle
Type of Schedule
Used in this Study
5 MI ROUTE
Speed vs. Distance
No
ADR 36
No schedule found
No
ART
Speed vs. Time
Yes
CBD
Speed vs. Time
Yes
HDT
Speed vs. Time
Yes
HDTT
Speed vs. Time
Yes
NYBUS
Speed vs. Time
Yes
NYBUSCOMP
No schedule found
No
NYGTC
Speed vs. Time
Yes
TestD
Speed vs. Time
Yes
Truck-CBD
Speed vs. Time
Yes
WVT
Speed vs. Distance
No
Once the modifications to the spreadsheet data were complete, its information was
merged with the MSOD data in a SAS program. All subsequent data handling, as described in
the rest of this report, was performed on the data from the spreadsheet at the same time.
3-25
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4.0 Data Analysis Considerations
In this section, we review some statistical fundamentals and some data and dataset
characteristics that will be important for understanding the analysis section. The data in this
study was analyzed using the general linear models procedure (GLM) of SAS. To help the
reader better understand the analysis and, specifically, to help describe the selected regression
output information that is in the appendices, it is important to review the statistical techniques
that are used in the study.
4.1 Important vs. Significant Effects
In this study we want to make a distinction between important influences of variables on
emissions and significant influences. In this report when we use the word significant we mean
that the variable is statistically significant.
A variable will be considered important if it explains a large fraction of the variability in
the emissions being modeled. This will be presented in results tables in Section 5 as the partial
r2. This term requires some explanation. Many of us are familiar with the r2 statistic that is used
to describe correlations between two variables. An r2 value of 0 indicates no correlation between
the two values and an r2 value of 1 indicates a perfect linear relationship. In describing the
ability of a model to predict a response variable, the r2 statistic is also used. It is calculated as a
ratio of the sum of squares of the response variable explained by the model to the total sum of
squares of the response variable in the dataset.
For example, consider the GLM output for the regression shown in Table 4-1. In this
example, 46,523 observations were used to model the measured grams of C02 per second
(gco2 s) in terms of the average total power (avgtotpower) and different driving cycles as
represented by sched id. The table indicates that the r2 for the model was 0.765. The r2 for a
model is the ratio of the sum of the squares explained by the model to the sum of the squares of
the dataset corrected for the mean. In the example, this is 20793/27168.
4-1
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Table 4-1. GLM Procedure Output Example 1
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
DF
36
46486
46522
Sum of
Squares
20793.86576
6375.03276
27168.89852
Mean Square F Value Pr > F
577.60738 4211.85 <.0001
0.13714
R-Square Coeff Var Root MSE gco2_s Mean
0.765355 14.70115 0.370323 2.519004
to
Source
avgtotpower
sched id
Source
avgtotpower
sched id
DF
1
35
DF
1
35
Type I SS
19240.09717
1553.76859
Type II SS
8710.107614
1553.768592
Mean Square
19240.09717
44.39339
Mean Square
8710.107614
44.393388
F Value
140297
323.71
F Value
63513.1
323.71
Pr > F
<.0001
<.0001
Pr > F
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2.sas
-------
To evaluate the relative importance of the two predictor variables, we can calculate the
partial r2 for the two predictor variables. The sum of squares attributed to the two predictor
variables are calculated at the bottom of the table and attributed to the two predictor variables
using two different methods called Type I SS and Type II SS. When all different combinations
of the predictor variables are populated by observations, the Type I and Type II sum of squares
will be equal. However, if observations are missing from some of the combinations of the
predictor variables, the different calculation methods for the Type I and Type II sum of squares
will yield different results. The Type I SS method gives the incremental sum of squares for a
predictor variable given that the other predictor variables in the list above it are already in the
model. The sum of the Type I sum of squares always equals the model sum of squares at the top
of the output. In this example, 19240 + 1553 = 20793.
Partial r2 can easily be calculated from the Type I SS output (but not from the Type II SS
output) by ratioing them to the corrected total sum of squares. So for the output shown in Table
4-1 the partial r2 for avgtotpower and sched id are 0.708 and 0.057, respectively. Now it is
possible to answer the question about which of the two predictor variables is more important to
predicting the response variable. Since the avgtotpower explains a much larger portion of the
variability in the dataset being analyzed, it is clearly much more important than sched id.
The question of whether a given predictor variable has a statistically significant influence
on the response variable is an entirely different question. A predictor variable is statistically
significant when the size of its influence on the response variable is much larger than the
uncertainty of the size of the response as measured by the standard error of the response variable.
For large datasets such as those in this study, standard errors can be very small. This can create a
"problem" in understanding the influence of predictor variables. The problem is that while some
predictor variables will, in terms of the partial r2, explain a tiny portion of the variability in the
dataset they can be statistically significant because the large dataset causes the standard error for
the variable to be small.
As we shall see later in this document, there will be cases when a predictor variable will
not be important to the emissions being modeled because the partial r2 of that variable is small.
In addition, the statistical significance of that predictor variable may be borderline, and yet when
the size of the coefficient for that predictor variable is compared with the mean of the emissions
in the dataset being modeled, it will appear to be relatively large. An engineering consideration
4-3
-------
of the predictor variable and the type of emissions being modeled might suggest that this variable
should be important.
As an example, we have repeatedly seen in this analysis that when air conditioning is
turned on, the C02 emissions increase by about 0.2 g/s. For the dataset the average C02
emission rate is about 4 g/s. Therefore, these values suggest that operating the air conditioning
increases C02 emissions on the order of 5%, which we would judge from an engineering
perspective as a reasonable result. On the other hand, the statistical analysis results indicate that
the importance of air conditioning operation is miniscule (partial r2 = approximately 0.0001) and
the statistical significance of the 0.2 g C02/s value is borderline.
Because vehicle emission studies have been undertaken to quantify the effects of
different types of vehicle operation and different types of fuel compositions, these sorts of
statistical results might be viewed with disbelief. One of the main reasons that some vehicle
operation variables and fuel variables may be found to be relatively unimportant and
insignificant is that other variables explain a comparatively huge portion of the emissions
variability in the dataset. In this study, these other, dominant effects are the vehicle-to-vehicle
emission variability and the within-vehicle emission variability.
4.2 Effect of Colinearities
Another important data characteristic to consider is the relationships among the
independent variables that are used to predict the emissions being modeled. If all of the predictor
variables are independent of each other, then an effort to determine their importance on an
emission for a given dataset is relatively straightforward. For example, if we wanted to
determine the relative importance of catalyst type and fuel volatility on C02 emissions for a large
set of data where all four combinations of the predictor variables were available, we would be
able to obtain an unambiguous determination of importance. On the other hand, when the
predictor variables depend on each other or are closely or somewhat related to each other, the
determination of relative importance of the predictor variables can get difficult.
For example, suppose we wanted to determine the importance of engine displacement
and number of cylinders on C02 emissions. We know from a correlation analysis of the MSOD
data that cylinder and displacement are related to each other with an r2 of about 0.8. In these
situations, the order of the predictor variables in the regression model statement makes a
4-4
-------
difference on the deduced importance of the predictor variables. We will use the MSOD data to
demonstrate this effect.
Table 4-2 shows the regression of g C02/s against cylinder and displacement in that
order. Table 4-3 shows the same regression on the same dataset with the predictor variable order
reversed. For both regressions, the r2 for the model is 0.360, both cylinder and displacement are
statistically significant (since Pr > IT | is < .0001), and the parameter estimates for the intercept
and the two predictor variables are the same. However, when we calculate the partial r2 values
for the two regressions, we get different answers using the Type I SS sum of squares as described
in the previous section. The partial r2 for the regression shown in Table 4-2 for cylinder and disp
are 0.260 and 0.100, respectively. However, from the regression in Table 4-3, the partial r2 for
cylinder and disp are 0.004 and 0.356, respectively. So, the first regression indicates that
cylinder is more important and the second regression indicates that the disp is more important.
This discrepancy in determining the importance of the two variables is caused only by the
colinearity of disp with cylinder.
This situation is relatively easy for us to understand since there are only two predictor
variables in the model. However, when we get to the analysis of all the variables, there may be a
dozen variables in the model. We need to avoid deducing that a variable is of primary
importance when the deduction was based on a regression performed when that variable just
happened to be put first in the model statement by the analyst. One possibility would be to
perform regressions on the variables in all possible orders. However, this would lead to
thousands of regressions, and even if they could be performed, the resolution of all of the results
into a single generally true result would be difficult to arrive at.
Fortunately, SAS provides another method of calculating the sum of squares. This is the
Type II sum of squares which also appears in Tables 4-2 and 4-3 and which we have printed in
all of the GLM outputs in this study. In the Type II SS listing of every GLM output, the sum of
squares, mean square, F value, and significance level for each effect are calculated after all other
effects in the variable list are already in the model. So, for example, in Table 4-2 the Type II
sum of squares for cylinder of 1006 is the sum of squares that would be obtained for cylinder if
the disp were already in the model; the Type II sum of squares for disp of 22961 is the sum of
squares that would be obtained if cylinder were first in the model. Thus, it can be seen that the
4-5
-------
Table 4-2. GLM Procedure Output Example 2
Number of observations 169559
Dependent Variable: gco2_s
Source DF
Model 2
Error 169556
Corrected Total 169558
Sum of
Squares
R-Square
0.359905
Coeff Var
33.02434
83042.7535
147692.4242
230735.1776
Root MSE
0.933303
Mean Square
41521.3767
0. 8711
F Value
47668.0
gco2_s Mean
2. 826106
Pr > F
<.0001
On
Source
cylinder
disp
DF Type I SS
1 60081.55268
1 22961.20078
Mean Square
60081.55268
22961.20078
F Value
68975.7
26360.3
Pr > F
<.0001
<.0001
Source
DF
Type II SS
Mean Square
F Value
Pr > F
cylinder
disp
1006.57514
22961.20078
1006.57514
22961.20078
1155.58
26360.3
<.0001
<.0001
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
cylinder
disp
1.501015423
-0.116501762
0.647368978
0. 00924256
0.00342714
0.00398728
162.40
-33.99
162.36
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/vcl.sas
-------
Table 4-3. GLM Procedure Output Example 3
Number of observations 169559
Dependent Variable: gco2_s
Source DF
Model 2
Error 169556
Corrected Total 169558
Sum of
Squares
R-Square
0.359905
Coeff Var
33.02434
83042.7535
147692.4242
230735.1776
Root MSE
0.933303
Mean Square
41521.3767
0. 8711
F Value
47668.0
gco2_s Mean
2. 826106
Pr > F
<.0001
Source
disp
cylinder
DF
1
1
Type I SS
82036.17832
1006.57514
Mean Square
82036.17832
1006.57514
F Value
94180. 4
1155.58
Pr > F
<.0001
<.0001
Source
DF
Type II SS
Mean Square
F Value
Pr > F
disp
cylinder
22961.20078
1006.57514
22961.20078
1006.57514
26360.3
1155.58
<.0001
<.0001
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
disp
cylinder
1.501015423
0.647368978
-0.116501762
0. 00924256
0. 00398728
0.00342714
162.40
162.36
-33.99
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/vcl.sas
-------
Type II sum of squares is a method of determining on a fair basis which variables are more
important than other variables since the sum of squares is calculated for each variable when it is
last entered into the model.
The Type II sum of squares gives us valuable information about the relative importance
of the predictor variables. However, each of these sum of squares is determined from a different
model. Because of this, the sum of the Type II sum of squares, unlike the sum of the Type I sum
of squares, does not necessarily sum to the model sum of squares (in this example, 83042 at the
top of the output). Therefore, the partial r2 must not be calculated on Type II sum of squares.
Only Type I sum of squares should be used to calculate partial r2.
Our approach to reach a ranking of the predictor variables using a standard methodology
is to first perform a regression with the predictor variables in any order. Then, we perform a
second regression with the predictor variables in the model statement in the order of the Type II
sum of squares in the first regression from highest to lowest values. Finally, the partial r2 values
are calculated using the Type I sum of squares of the second regression. In the case of our
example, suppose that the regression in Table 4-2 had been performed first. From this regression
we would see from the Type II sum of squares that disp was the more important variable. The
second regression would therefore, have disp before cylinder in the model statement. This
regression is the one shown in Table 4-3. We would then calculate the partial r2 values from the
Table 4-3 result and conclude that disp was much more important than cylinder to gco2/s.
The GLM regression outputs selected for inclusion in the appendices of this report are all
the second type of regression. So, they will all show that the predictor variables are listed in
order from largest to smallest Type II sum of squares. However, this does not mean that the
Type I sum of squares will also be exactly in decreasing sum of squares order. This can be
expected to occur now and then because if a variable that is colinear with another variable is
given the first opportunity to explain a large portion of the sum of squares, it will, and the
remaining colinear variable will not have the first opportunity "to pick the low hanging fruit."
4.3 Approach for Analyzing Vehicle/Cause and Operation Variables
One of the challenges in this study was to develop a method for dealing with the
evaluation of many predictor variables. The analysis of the influence of a large number of
variables on emissions was complicated by colinearities among the predictor variables and by
4-8
-------
significant numbers of missing values for some variables. The approach that we used was to
separate the predictor variables into two groups: vehicle characteristic variables and operation
variables. Each variable to be investigated was assigned to one of these two groups as shown in
Table 3-1.
Vehicle characteristics variables - The influences of these variables on a given
emission were investigated by performing regressions on a subset of the data for which the
operation of the vehicles was relatively constant. Conceptually, the results of such a regression
can be attributed to the vehicle characteristic variables since the operation of all of the vehicles in
the analyzed dataset does not change greatly from observation to observation. By taking this
approach, we make the assumption that the trends found for the vehicle characteristic variables
would be approximately the same as for all other operating conditions.
Before regressions were performed, we analyzed the datasets to determine the values at
which the operating variables should be held constant. The goal in selection of these values was
that the resulting dataset should be as large as possible with the operating variables held as
constant as possible. For most regressions, constant operation was usually selected to be all
driving cycles, an ambient temperature between 68° and 86°F, air conditioning off, low altitude,
and for gasoline-fueled vehicles, 9 psi RVP, non-oxygenated gasoline.
Early in the study for the analysis of gasoline vehicles, we had selected only FTP
composite results. However, when we found that average total power (avgtotpower) was able to
explain a large portion of the cycle-to-cycle influence on C02 emission results, we were able to
use all cycles for gasoline- and diesel-fueled vehicles on C02 emissions. This was made possible
by the inclusion of avgtotpower and sched id in each vehicle characteristic regression for C02
emissions.
On the other hand, since we did not find that CH4 emissions were closely related to the
power characteristics of different cycles, we decided that it was better to select a single cycle for
the analysis of CH4 emissions and the analysis of the ratio of CH4 to C02 emissions if such a
selection did not severely restrict the size of the dataset to be analyzed. Accordingly, only FTP
composite CH4 emission result observations were used for the analysis of CH4 emissions on
gasoline vehicles. However, the use of only FTP composite CH4 results on diesel vehicles would
have resulted in a dataset with only a handful of observations. Therefore, for the analysis of CH4
emissions and its ratio with C02 emissions on diesel vehicles, observations from all cycles were
4-9
-------
used. In these regressions, avgtotpower and sched id were included in the regressions in an
attempt to account for any cycle-to-cycle variability that might be influencing those emissions.
Operation variables - To investigate the influence of operation variables on emissions,
we wanted to find a way to hold the vehicle characteristic variables constant. We did this by
using the SAS variable msid cause as a categorical variable in the regressions. This variable
was created by the concatenation of the vehicle identification variable ms id with cause. This
combination recognizes that for the purposes of these regressions, a vehicle that has been
repaired, and therefore has a different value for cause, is treated as a different vehicle.
Conceptually, the use of msid cause in the regression removes from the regression any and all
variability in emissions produced by vehicle identity. All other terms in the regression are for
the operation variables. Consequently, the sums of squares assigned to these operation variables
are completely independent of the characteristics of the vehicles in the dataset. Clearly, this
approach does not measure any interactions that might be present between vehicle characteristic
variables and operation variables.
Vehicles that were tested only one time at a single operating condition will not influence
the evaluation of the operation variables. The evaluation of operation variables is obtained only
from the observations of vehicles (msid cause) that were tested at more than one operating
condition.
4.4 Dataset Characteristics
The data analyzed in this study was from two sources. The MSOD contains hundreds of
thousands of observations mostly on gasoline-fueled light-duty vehicles and light-duty trucks
with some emissions measured on diesel vehicles. C02 emissions are common and CH4
emissions are less common in this dataset. The HDSS is a small dataset with 435 observations
on heavy-duty diesel vehicles. In this dataset, C02 emissions are available but CH4 emissions
are not.
Gasoline-fueled vehicle observations - The analysis of the C02 and CH4 emissions for
gasoline vehicles was relatively straightforward since tens of thousands of C02 observations and
thousands of CH4 observations on gasoline-fueled vehicles were available from the MSOD.
4-10
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Diesel-fueled vehicle observations - Compared to the gasoline-fueled vehicle
observations in the study, there were few diesel-fueled vehicle observations. Table 4-4 shows a
summary of the available information on diesel fueled vehicles in the MSOD and HDSS
datasets. The MSOD has only 1,193 observations and the HDSS has only 435 observations. The
variable road hp that is used to estimate the resistive portion of the average total power was
missing for all of the observations in HDSS and for most of the observations in MSOD for diesel
vehicles. Since the analysis of the C02 emissions for gasoline-fueled vehicles was found to
depend heavily on avgtotpower, the missing values for road hp were estimated based on
reported testwght using the technique described in Section 3.9. Table 4-4 shows the fraction of
missing values for the two datasets after our efforts to look up or estimate values were made.
Even so, many variables have a significant fraction of missing values. This is especially the case
for the HDSS dataset.
The different missing value characteristics of the diesel data in the MSOD and the HDSS
affected the approach we took in analyzing the data. Initially, we wanted to combine the data
from both sources and analyze it together. However, when this was attempted using all of the
predictor variables desired, the dataset was almost entirely made up of observations from the
MSOD. In these regressions, only a handful of observations were available to extract
information. In an effort to increase the size of the dataset, we used a process of progressively
deleting unimportant and not statistically significant predictor variables from the regression.
This caused the number of observations being analyzed by the regression to increase. However,
it also caused the mix of observations in the analyzed dataset to move from a dataset made up
exclusively of MSOD observations to one that also included HDSS observations. Because the
MSOD diesel vehicles were primarily light-duty vehicles and light-duty trucks and the HDSS
vehicles were exclusively heavy-duty diesel vehicles, the characteristics of the types of vehicles
in the dataset changed as variables were removed from the regression. The result was that the
regression results were unstable as predictor variables were removed from the regression.
Our solution was to analyze the MSOD diesels separately from the HDSS diesels. Even
so, the number of observations in the final models were relatively small. The influence of
vehicle characteristics on C02 emissions for diesel vehicles was based on 855 MSOD
observations and 218 HDSS observations. The influence of vehicle characteristics on the CH4
emissions from diesel vehicles was based on 155 MSOD observations.
4-11
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Table 4-4. Diesel-Fueled Vehicle Data Characteristics
Variable Type
Variable
MSOD Data
In MSOD Model ?
HDSS Data
In HDSS Model?
1193 observations
435 observations
Vehicle/Cause
fedcat
LDV, LDT4, HDV, 27% missing
Stepwise
14% missing
Stepwise, Looked up
Vehicle/Cause
hclimit
10% missing
Stepwise, Looked up
27% missing
Stepwise, Looked up
Vehicle/Cause
hchigh
12% missing
Stepwise, Looked up
43% missing
Stepwise, Looked up
Vehicle/Cause
colimit
10% missing
Stepwise, Looked up
27% missing
Stepwise, Looked up
Vehicle/Cause
cohigh
10% missing
Stepwise, Looked up
27% missing
Stepwise, Looked up
Vehicle/Cause
model_yr
0% missing
Yes
2% missing
Yes
Vehicle/Cause
fi type
Direct, PFI, 32% missing
No, no real meaning
Mech, Elect
No, no real meaning
Vehicle/Cause
cat type
None, Oxid, 32% missing
Stepwise
100% missing
No
Vehicle/Cause
cylinder
2% missing
Yes
33% missing
Stepwise, Looked up
Vehicle/Cause
aspirated
Natural, Super, Turbo, Charged, 34%
missing
Stepwise
33% missing
Stepwise, Looked up
Vehicle/Cause
disp
7% missing
Yes
33% missing
Stepwise, Looked up
Vehicle/Cause
testwght
17% missing
Stepwise
2% missing
Used inertia weight for testwght
Vehicle/Cause
zippy (disp/wt)
24% missing
Stepwise, Looked up
33% missing
Stepwise, Looked up
Vehicle/Cause
tran type
Auto, Manual, 7% missing
Stepwise
100% missing
No
Vehicle/Cause
road hp
17% missing
Stepwise, estimated
2% missing
Yes, estimated
Vehicle/Cause
odometer
11% missing
Stepwise
9% missing
Stepwise
Vehicle/Cause
repairs
0% missing
Yes
100% missing
No
Operation
PI,2,3,4
1% missing
Yes
25% missing
Stepwise, Defined cycles
Operation
avgtotpower
18% missing
Yes, Estimated road hp
27% missing
Yes, Estimated road hp
Operation
avginrtpower
18% missing
No
27% missing
No, Defined cycles
Operation
sched id
1% missing
Yes
0% missing
Yes
Operation
soaktime
81% missing
Special
25% missing
Yes, Define cycles
Operation
temp
3% missing
Yes
100% missing
No, but H/C start available
Operation
altitude
59% missing
Special
H, L, 0% missing
Yes
Operation
aeon
All AC = Off, 0% missing
No
100% missing
No
Emissions
gco2 s
1% missing
Yes, Response
9% missing
Yes, Calculated from mpg, HC, CO
Emissions
mgch4 s
86% missing
Yes, Response
100% missing
No
Emissions
uch4 co2
86% missing
Yes, Response
100% missing
No
4-12
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4.5 Power Relationship
C02 is not a trace emission. Its behavior with respect to vehicle characteristics and
vehicle operation is constrained by simple combustion and energy relationships and a carbon
balance between fuel and emissions. Trace emissions (like HC, CO, CH4, and NOx) can vary
widely; they are less constrained by such relationships. C02 emissions are closely tied to fuel
consumption because most fuel carbon becomes C02 (except for small amounts of carbon in HC
and CO). In general, fuel consumption is higher when more work is done by the engine. This
relationship is not exactly true because drive train efficiency varies for different engine and
vehicle operating conditions. So, when the engine of a given vehicle does more work, the vehicle
emits more C02. Also, vehicles that have higher fuel economy (miles per gallon) produce lower
g C02/s when operated under the same conditions as do low fuel economy vehicles.
In general, a vehicle will have a higher fuel consumption (grams of fuel per second) when
the engine of the vehicle is doing more work. We might expect that a linear relationship between
fuel consumption and work done might exist. Therefore, an estimate of the work done by the
engine on the dynamometer during a emissions test could provide a key piece of information to
relate to fuel consumption and then to C02 emissions.
The MSOD database does not contain information about the amount of work that the
engine in each test vehicle performed during a test; however, the database does include
information which can be used to estimate the amount of work that the vehicle did during the
test. The work the vehicle did on the dynamometer can be thought of being made of two parts.
The first part is the acceleration of the inertia weight in the context of the vehicle speed driving
trace. This corresponds to the horsepower at the wheels that a vehicle needs to produce when
driving on the road to accelerate the mass of the vehicle. The inertial work performed in one
second when a vehicle accelerates from an initial speed, St.i, to a final speed, St, is given by:
Inertial Work = testwght ^2 _ Equation 4-1
where g = 32.174 ft/s2
The second type of work the test vehicle does on the dynamometer is the resistive work
to overcome the drag of the power absorption unit. This drag is used to simulate the
4-13
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aerodynamic drag and rolling resistance of a vehicle on a road. The MSOD variable road hp
provides the resistive road horsepower calculated for a vehicle speed of 50 mph. For the
purposes of this study, we have assumed that the road horsepower required for other speeds of a
given test vehicle are proportional to the square of the vehicle speed. Therefore, for a given
driving trace the resistive work performed during one second of vehicle operation at the vehicle
speed, St, is given by:
f s V
Re si stive Work = road hp I I Equation 4-2
The total work done by the vehicle in one second of operation is then given by:
Total Work = Inertial Work + Resistive Work
1 testwght 2 „ 2. , , (St
= k (St - St , ) + road hp —
2 g v 1 J - F150
Equation 4-3
where k =
5280 ft
mile
f
hr
V f
v3600 s j
lhp
A
550 ft lb/s
This relationship shows that when vehicles are cruising at a steady speed, no inertial
work is performed on the dynamometer. All work is resistive work to overcome the drag of the
power absorption unit. On the other hand, when the vehicle is accelerating at low speeds, almost
all of the total work is inertial work. These ideas are demonstrated numerically by the three
examples given in Table 4-5 for a vehicle with a test weight of 3,200 pounds and a road
horsepower requirement at 50 mph of 7 horsepower which is a typical value of cars in the
MSOD.
Table 4-5. Example of Work Components
Test Weight
St-i
st
road hp
Inertial Work
Resistive Work
Total Work
Ob)
(mph)
(mph)
(hp)
(hp-s)
(hp-s)
(hp-s)
3200
0
10
7
19.6
0.3
19.8
3200
25
30
7
53.8
2.5
56.3
3200
60
63
7
72.2
11.1
83.3
The total work done by the test vehicle on a driving cycle is calculated by adding up the
work performed on each second of the driving cycle according to the above relationship. For a
4-14
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long cycle, the total work performed by a vehicle will tend to be greater than for a short cycle.
For cycles that involve higher accelerations, the amount of work done by the vehicle will tend to
be greater than for cycles dominated by cruises and idles. We should point out that the work
performed by the vehicle calculated in this manner is not equivalent to the work performed by
the engine since the engine must overcome accessory loads and the internal resistances of the
vehicle such as bearing and transmission friction.
To test the ability of the calculated total work during a test cycle to predict the grams of
C02 produced during the test cycle, Figure 4-1 shows a plot of grams of C02 against total work
for data from the MSOD. Each point on the plot represents a single dynamometer test. In
general, the plot shows a proportional relationship between grams of C02 produced and the total
work performed by the vehicles on the dynamometer. The plot shows a considerable amount of
scatter about the linear trend. This scatter is produced by vehicle to vehicle differences and by
the different operating conditions under which vehicles were tested. Attribution of the reasons
for this scatter to the different vehicle and operation variables is the goal for the remainder of the
C02 analysis.
The trend in Figure 4-1 also allows us to reach another important conclusion for the
application of relationships used to predict C02 emissions. Because of the linear nature of the
plot of grams of C02 against total work performed by the vehicle, we should expect that the
relationships discovered from data on test cycles could be applied to second-by-second emissions
of vehicles in the MOBILE6 or NGM models. That is, the C02 emissions from a one second
snippet of driving could be determined by using the relationship in Figure 4-1 near the origin.
For the purposes of determining C02 emissions for each second of driving, it is desirable
to convert the data plotted in Figure 4-1 from values for the entire cycle to average values for
each second of the cycle. To demonstrate the effect of calculating the average values for each
second of a cycle, the horizontal and vertical axis of Figure 4-1 are divided by the duration of
each cycle. This produces Figure 4-2 which is a plot of the average C02 emission rate in grams
per second against the average total power (avgtotpower) used by the vehicle in the test cycle.
This conversion removes the duration of the test cycle from consideration. The effect on the plot
is that the relationship between the vertical and horizontal axis is tighter than in Figure 4-1.
4-15
-------
Figure 4-1. Mass Emissions of C02 vs. Total Work
All cycles, 23C, AC oil, not High Altitude, 9 KVF, Diesel or non-Oxy tuel
+ + *+" V
15000
4000
3000
2000
2 10000
Total (Inertial + Resistive) Work (hp-s)
/camwheels/cam/ epaco2ch4/vc 1. sas
Figure 4-2. Average C02 Emissions per Second vs. Average Total Power
All cycles, 25C, AC oft, not High Altitude, 9 RVP, Diesel or non-Oxy tuel
15
D
o:
o
•e
2D 30 40 50
Average Total (Inertial + Resistive) Power (hp)
/camwheels/cam/ epaco2ch4/vc 1. sas
4-16
-------
However, the relationship shown in Figure 4-2 seems to be non-linear. Specifically, the
values of C02 seem to be increasing less rapidly as the average total power increases. Our
analysis of this data indicate that, to a large degree, this apparent curvature is an artifact of the
presence of many test cycles in the dataset. When plots for individual test cycles were made, the
relationship of all vehicles tested with each individual test cycle showed a relationship between
C02 emission rate (g/s) and average total power that was close to linear, but not exactly so.
Figures 4-3 and 4-4 show the plots of C02 emission rate against average total power for the
US06 (high-speed fourth bag of FTP) and ST01 (engine start cycle test) cycles, respectively.
The slopes of the two plots are clearly different, which indicates that average total power alone
does not explain all cycle influences on C02 emissions.
In addition, close examination of the trends in Figures 4-3 and 4-4 may reveal a small
concave downward trend. We suspect that this possible trend may be caused by the increased
production of CO emissions at higher average total power. This would tend to cause C02
emissions to drop off from the linear trend as average total power increases.
The dependence of C02 emission rate on average total power for gasoline vehicles shown
in Figure 4-2 can be compared with the relationship with diesel vehicles. Figure 4-5 shows the
relationship for the diesel vehicle data from the MSOD dataset. This data is dominated by light-
duty diesel vehicles and light-duty diesel trucks. The trend in Figure 4-5 is linear and seems to
fall directly on top of the trend for gasoline vehicles shown in Figure 4-2.
The trend shown for the HDSS diesel data, which is shown in Figure 4-6, is somewhat
different. All of the vehicles represented by this figure are heavy-duty diesel vehicles. A
number of high C02 emission rate values occur in the vicinity of 30 hp. Examination of the
dataset failed to reveal a specific reason why these values appear to be different from others on
the plot. The underlying trend in the figure seems to be a rather linear increase in C02 emission
rate average total power increases. The intercept of this linear trend is in the vicinity of 4 g
C02/s, which is noticeably higher than the intercept value in Figure 4-5 for light-duty diesel
vehicles and in Figure 4-2 for gasoline vehicles.
4-17
-------
Figure 4-3. Response of C02 Emission Rate to Average Total Power
for US06 Cycle
25(J, AC oil, not High Altitude, 9 KVF, JNon-Oxy Ciasoline
2 15
o
¦e
2D 30 40 BO 60
Average Total (Inertial + Resistive) Power (hp)
/ camwheels/cam/ epaco2ch4/vc 1. sas
Figure 4-4. Response of C02 Emission Rate to Average Total Power
for ST01 Cycle
23C, AC oil, not High Altitude, 9 KVF, JNon-Oxy Ciasoline
2 15
o
¦e
2D 30 40 B0 M>
Average Total (Inertlal + Resistive) Power (hp)
/camwheels/cam/ epaco2ch4/vc 1. sas
4-18
-------
Figure 4-5. Dependence of C02 Emission Rate on Average Total Power
for MSOD Diesel Data
MSOD Diesel Data Only
20 JO 40 50 SO 70
Average Total (Inertial + Resistive) Power (hp)
/camwheels/cam/ epaco2ch4/vc 1 co2dies. sas
Figure 4-6. Dependence of C02 Emission Rate on Average Total Power
for HDSS Diesel Data
O
¦e
HDSS Diesel Data Only
20 30 40 BO 60 70
Average Total {Inertial + Resistive} Power [hp}
/camwheels/cam/ epaco2ch4/vc 1 co2dies .sas
4-19
-------
Because the HDSS diesel data had many seemingly spurious points above the linear trend
and because the linear trend itself seemed to be different from the trend of the light-duty diesel
vehicles in the MSOD data, for the purposes of evaluating the significance of the diesel versus
gasoline vehicle effect, we used only the gasoline and diesel data from the MSOD. The
difference in the plots are alone sufficient to demonstrate that the C02 emissions of heavy-duty
diesel vehicles respond differently to the average total power in comparison with light-duty
gasoline and diesel vehicles.
During the calculation of average total power, we noticed that for light-duty vehicles and
trucks, the resistive portion of the average total power typically made up on the order of 10% of
the average total power. However, for heavy-duty vehicles, the resistive portion of the average
total power was more like 40 or 50%. During this analysis, we talked to Nigel Clark at West
Virginia University, and he confirmed this difference in power requirements between light-duty
and heavy-duty vehicles.
A typical heavy-duty vehicle may be on the order of twenty times the weight of a car.
However, the power of its engine is only about three times that of a car. Because of this
relationship and the much larger rolling resistance and aerodynamic drag of heavy-duty vehicles,
most of the power from the engine of a heavy-duty vehicle goes to simply move the vehicle
down the highway at a constant speed and any remaining power goes toward accelerating the
vehicle.
A consequence of this differing power relationship for light-duty and heavy-duty vehicles
is that, for light-duty vehicles, vehicle specific power, which describes only the inertial portion
of the power requirement, might be used to approximate the power requirements of light-duty
vehicle engines. However, vehicle specific power does not include the influences of vehicle
weight. Further, vehicle specific power will be an inadequate measure of power required of
heavy-duty vehicles because such a large portion of their power requirement is a consequence of
their rolling resistance, aerodynamic drag, and for actual highway operation, grade.
4-20
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5.0 Results of Analyses
The results of the statistical analyses are summarized in nine subsections. Three groups
of three subsections present results for C02, CH4, and the ratio of CH4 to C02. Within each
group of three subsections, each subsection presents results for gasoline-fueled vehicles, diesel-
fueled vehicles, and a combined analysis with both types of vehicles to determine the importance
and significance of the fuel type effect. Within each of the nine subsections, analyses for vehicle
characteristics, operation, and special variables are discussed.
For each topic, the results are taken from the regression outputs which are found in the
appendices. Many of the sections show tables with summary statistics taken from the appendix
output tables. In general, the appendices show regression output as directly obtained from the
SAS regression runs. In many cases, these regression outputs will be referred to in the text of
this section by the appendix page number. After the regression outputs in each appendix, a series
of statistics on the variables in the previous model are provided to give the reader an idea of the
type of observations that the regression was built on. For continuous variables, the mean,
standard deviation, minimum, maximum, and count of the observations are provided. For
categorical variables, the number of observations at each level of each variable is provided. It is
important to use these dataset statistics when considering how broadly applicable the regression
results will be to a fleet. For example, for some of the models built on diesel emissions data,
certain vehicle characteristic variables may be found to be important and statistically significant.
However, because of the small sample size, these findings were based only on a few vehicles
tested in a few different situations.
In each section the first table gives a summary of the statistical results including measures
that can be used to evaluate the importance and significance of predictor variables on emissions.
The partial r2 is a measure of importance and the coefficient significance is a measure of
statistical significance. The statistical significance is equal to 1 minus the numerical value
entered. For example, a value of 0.05 means that the coefficient of the variable is significant at
the 95% confidence level.
5-1
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5.1 C02 Emission Rate (g C02/s) for Gasoline Vehicles
5.1.1 Vehicle Characteristic Variables
The dataset analyzed to determine the effects of vehicle characteristics on g C02/s for
gasoline-fueled vehicles was made by subsetting the data with:
• all observations for which C02 was not missing;
• gasoline-fueled vehicles;
• all cycle results except FTP composite results;
• ambient temperatures between 68° and 86°F;
• air conditioning off;
• low altitude;
• RVPs between 8.5 and 9.4 psi; and
• non-oxygenated gasoline.
This resulted in a dataset with 59018 observations. FTP composite results were not included
because they are not independent of FTP Bag 1, Bag 2, and Bag 3 results, which are included.
A correlation analysis of the vehicle characteristic variables that are continuous indicated
that the following were correlated with an r2 of greater than 0.5:
• disp with cylinder;
• disp with testwght,
• disp with zippy;
• cylinder with testwght; and
• cylinder with zippy.
This list of correlated variables was used to help simplify and interpret the multivariate
influences of vehicle characteristic variables on the response variable gco2 s.
Table 5-1 shows the results of the one variable at a time models to predict gco2 s for
gasoline-fueled vehicles. The top three variables on the list are power variables and the
remaining variables are vehicle characteristic variables. The vehicle characteristic variables with
the highest r2 in this one at a time analysis were testwght, road hp, fedcat, disp, and cylinder.
All of these operation variables are related to the size of the vehicle and, therefore, to the amount
of power required to accelerate and move the vehicle.
5-2
-------
Table 5-1. One-at-a-Time Analysis of C02 Emission Rate
for Characteristics
of Gasoline Vehicles
Variable
N (out of 59018)
r
testwght
37953
0.515
road hp
34623
0.370
fedcat
54725
0.361
disp
47940
0.340
cylinder
47940
0.278
colimitcat
55237
0.099
model yr
58350
0.087
hclimitcat
53414
0.068
cat type
58347
0.057
zippy
37953
0.035
tran type
47937
0.028
odometer
58052
0.002
aspirated
47924
0.001
fi type
57709
0.001
repairs
58350
0.000
hchigh
51745
0.000
cohigh
53568
0.000
The one at a time analysis of the power variables shown in Table 5-1 indicates that, by
themselves, avgtotpower and sched id explained more of the variability in the dataset than any
of the vehicle characteristics values did by themselves. On the other hand, the power fingerprint
variables {pi, p2, p3, and p4) did not explain as large a portion of the variability in the dataset as
did the other two power variables.
To further investigate the influence of power on the C02 emissions for gasoline vehicles,
we show the regression models for avgtotpower on page Al-1, for the power fingerprint
variables on page Al-3, for avgtotpower with sched id on page Al-7, and for avgtotpower and
the power fingerprint variables on page Al-10. The partial r2 results for those four models are
summarized in Table 5-2. The table shows that avgtotpower explains more of the variability
than does the power fingerprint. Additionally, the results show that when sched id or the power
fingerprint is added to a model containing avgtotpower, that either of those variables make an
important improvement in the model. The improvement is larger for sched id, as it would
expected to be since sched id has 36 coefficients while the power fingerprint has only four.
5-3
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Table 5-2. Multivariate Regression with Power Variables
Predictor Variables
r2
partial
total
avgtotpower
.816
.816
PI, P2, P3,P4
.386
.386
avgtotpower
.816
sched id
.040
.856
avgtotpower
.816
PI, P2, P3,P4
.002
.819
We believe that these results indicate that the definition of the power fingerprint variables
could be modified to improve their performance in predicting C02 emissions. The discovery of
improved power fingerprint variable definitions is beyond the scope of this study. EPA may
desire to pursue improved definitions in follow-on work. For the purposes of evaluating the
influences of vehicle characteristic variables on the C02 emissions of gasoline-fueled vehicles,
we selected sched id for use in subsequent multivariate regressions to explain a larger portion of
the variability of the C02 so that the remaining variability and its dependence on vehicle
characteristic variables could be investigated.
The multivariate analysis of the vehicle characteristics influence on gasoline-fueled
vehicle C02 emissions begin on page Al-13 with a regression on the power variables
avgtotpower and sched id. The residuals from this regression are then analyzed with the
regression on the vehicle characteristics variables. This regression output begins on page Al-17.
Table 5-2 shows a summary of the overall partial r2for the power and vehicle characteristics
variables from these two regressions. Table 5-3 shows that the overall model has a total r2of
0.894, and the largest part of this is explained by avgtotpower and sched id. It is important to
recognize that the two power variables explained 0.856 (=0.816 + 0.040) of the variability in the
dataset while the vehicle characteristics variables explain only 0.038 (= 0.894 - 0.856) of the
variability. The most important vehicle characteristic variables appear to be zippy and tran type.
Table 5-3 also indicates that all of the vehicle characteristic variables have significant
coefficients except for hclimit. The vehicle characteristic variables can be ranked by importance
by sorting them in the order of the partial r2 shown in Table 5-3.
5-4
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Table 5-3. Multivariate Analysis (page A1-13) of C02 Emission Rate
for Characteristics
of Gasoline Vehicles (N=32318)
Variable
Partial r2 from Type I SS
Coefficient Significance
avgtotpower
0.8163
<0.0001
sched id
0.0400
<0.0001
tran type
0.0134
<0.0001
model yr
0.0040
<0.0001
zippy
0.0137
<0.0001
colimit
0.0019
<0.0001
ft type
0.0011
<0.0001
fedcat
0.0006
<0.0001
repairs
0.0008
<0.0001
cat type
0.0003
<0.0001
aspirated
0.0004
<0.0001
hchigh
0.0010
<0.0001
testwght
0.0005
<0.0001
cohigh
0.0001
<0.0001
odometer
0.0001
<0.0001
disp
0.0001
<0.0001
hclimit
0.0000
0.2177
Total r2 =0.8942
5.1.2 Operation Variables
The dataset analyzed to determine the effects of operation on g C02/s for gasoline-fueled
vehicles was made by subsetting the data with:
• all observations for which C02 was not missing;
• gasoline-fueled vehicles; and
• all cycle results except FTP composite results.
This resulted in a dataset with 231,489 observations. A correlation analysis of the operation
variables that are continuous indicated that no variables were highly correlated.
Table 5-4 shows the results of the one variable at a time models to predict g C02/s for
gasoline-fueled vehicles. The variable avgtotpower explained the largest portion of the
variability. The variable schedid explained a smaller part of the variability. All other variables
when taken one at a time, explained essentially none of the variability in the dataset.
5-5
-------
The multivariate analysis of the operation variable influence on gasoline-fueled vehicles
C02 emissions begins on page A2-1. Table 5-5 shows a summary of the analysis. The
regression was performed on 5,031 different vehicle repair states {msidcause). Overall, the
model had a total r2 of 0.818. The variable msid cause had a partial r2 of 0.491. The use of the
variable msid cause removes all possible variability for vehicle characteristics. All other
variables in the regression are operation variables. The analysis shows that avgtotpower and
sched id are by far the most important variables at explaining C02 emissions. All remaining
variables are much less important. It should be noted that soakcat, aeon, rvp, and oxyind all have
statistically significant coefficients. An examination of the parameter estimates for the
regression on page A2-8 shows that lower C02 emission rates can be expected for air
conditioning off, lower RVP, oxygenated fuel, and shorter soak times.
Table 5-4. One-at-a-Time Analysis of C02 Emission Rate
for Operation
of Gasoline Vehicles
Variable
N (out of 231,489)
r*
aeon
165214
0.000
alteat
165214
0.001
avgtotpower
133530
0.682
oxyind
89634
0.002
rvp
89604
0.001
sched id
165214
0.106
soakcat
165214
0.002
temp
164964
0.001
Table 5-5. Multivariate Analysis (page A2-1) of C02 Emission Rate
for Operation
of Gasoline Vehicles (N=58738)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.4911
<0.0001
avgtotpower
0.3010
<0.0001
sched id
0.0259
<0.0001
soakcat
0.0001
<0.0001
aeon
0.0001
<0.0001
rvp
0.0000
0.0021
oxyind
0.0000
0.0055
temp
0.0000
0.2826
altcat
0.0000
0.7216
Total 1^=0.8181
5-6
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5.1.3 Special Analyses
Three special analyses were performed for g C02/s on gasoline-fueled vehicles: altitude,
start vs. run, and soak time.
Altitude - The effect of altitude was analyzed by using a regression to determine the
importance and statistical significance of the variable altcat while at the same time correcting for
vehicles and vehicle characteristics with msid cause and other operation variables. The
regression results begin on page A3-7 and are summarized in Table 5-6. All partial r2 values and
significances for values other than altcat are not relevant to this analysis. The only relevant
information from Table 5-6 is that the partial r2 of altcat is 0.0000 and it is not statistically
significant. Therefore, the analysis indicates that altcat is neither important nor significant in its
influence on the C02 emissions of gasoline-fueled vehicles.
Table 5-6. Multivariate Analysis (Page A3-7) of C02 Emission Rate
of Gasoline Vehicles
for Altitude Effect (N=59774)
Variable
Partial r2 from Type I SS
Coefficient Significance
sched id
0.5548
<0.0001
msid cause
0.3435
<0.0001
aeon
0.0013
<0.0001
temp
0.0002
<0.0001
soakcat
0.0000
0.063
rvp
0.0000
0.0006
oxyind
0.0000
0.0349
altcat
0.0000
0.6097
fedcat
0.0000
Total r2 =0.8998
Start vs. run and soak time - The analysis of start vs. run and soak time uses only a
small dataset from the MSOD data. Only those observations which were available for a Hot
Running 505, an FTP Bag 1, or an FTP Bag 3 were used for this analysis. All three driving
cycles have exactly the same driving trace. As discussed previously, they differ in the duration
of the soak time preceding the emissions measurement and whether the vehicle has a key-on at
the beginning of the test. Three analyses were performed to consider the effects of start vs.
running and soak time for these three driving cycles. The analyses include msid cause to
remove the effects of vehicle and vehicle characteristics and other operation variables to correct
5-7
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for those differences so that the effect under observation can be observed more clearly. In each
regression, the variable sched id carries the information to be examined.
The comparison of start vs. run for the Hot Running 505 versus FTP Bag 1 is
summarized in Table 5-7. The regression is on page A3-33. The table indicates that the driving
cycle is not very important since it has a partial r2 of 0.0105 and the coefficient is not statistically
significant. The parameter estimates for the regression which are shown on page A3-37 indicate
that g C02/s is about 0.9 g/s lower for the Hot Running 505 than for the cold start FTP Bag 1.
So, while the result is not statistically significant, the trend is in the expected direction.
Table 5-7. Multivariate Analysis (Page A3-33) of C02 Emission Rate
of Gasoline Vehicles
for Hot Running 505 vs. FTP Bag 1 (N=340)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.2125
0.0541
sched id
0.0105
0.0527
rvp
0.0031
0.2885
temp
0.0002
0.7964
aeon
0.0018
0.4259
avgtotpower
0.0004
0.6981
oxyind
0.0000
altcat
0.0000
Total r2 =0.2285
Table 5-8 shows the results for the comparison of the Hot Running 505 with FTP Bag 3.
This table indicates that the driving cycle effect, as shown by sched id, is not very important and
is not statistically significant. Examination of the parameter estimates for this regression are
shown on page A3-48. They indicate that the Hot Running 505 produced about 0.4 g C02/s
lower than did the FTP Bag 3. While this result is not statistically significant, the trend is in the
expected direction.
5-8
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Table 5-8. Multivariate Analysis (Page A3-44) of C02 Emission Rate
of Gasoline Vehicles
for Hot Running 505 vs. FTP Bag 3 (N=340)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.2126
0.0609
rvp
0.0031
0.2936
sched id
0.0022
0.3718
temp
0.0001
0.8329
aeon
0.0008
0.5971
avgtotpower
0.0004
0.7194
oxyind
0.0000
altcat
0.0000
Total r2 =0.2193
The regression for the analysis of FTP Bag 1 versus FTP Bag 3 begins on A3-55 and is
summarized in Table 5-9. Again, all of the partial r2 in the table except for schedJd have no
meaning. The table shows that the difference between the two bags is not very important and is
not statistically significant. The parameter estimates for the two cycles are shown on page A3-
59. The coefficients indicate that, on the average, FTP Bag 1 has 0.5 g C02/s higher emissions
than FTP Bag 3. Thus, while the effect is not statistically significant, the trend is in the expected
direction.
Table 5-9. Multivariate Analysis (Page A3-55) of C02 Emission Rate
of Gasoline Vehicles
for FTP Bag 1 vs. FTP Bag 3 (N=282)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.3451
<.0001
rvp
0.0085
0.0892
aeon
0.0011
0.5445
temp
0.0025
0.3578
sched id
0.0018
0.4264
avgtotpower
0.0004
0.7248
oxyind
0.0000
altcat
0.0000
Total r2 =0.3593
5.1.4 Unified Result
The operation variable results in Table 5-5 show that the only variables that were
important to the C02 emission rate of gasoline vehicles were avgtotpower and sched id. The
5-9
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variables soakcat, aeon, rvp, oxyind, temp, and altcat were not important. Therefore, to get the
overall view of the relative importance of operation and vehicle characteristic variables, we
modeled all C02 gasoline data for all cycles (except composite FTP results) and at all operating
conditions. Removal of the restriction of constant operating conditions allowed all operating
conditions to be present in the dataset that was analyzed by this regression. Accordingly, the
number of observations increased to 50,104. The regression results are shown beginning on page
A4-1 and the results are summarized in Table 5-10. We have reordered the variable list in the
table according to the partial r2 of the regression so that the overall ranking of the variables can
easily be observed.
Table 5-10. Unified Multivariate Analysis (page A4-1) of C02 Emission Rate
for Gasoline Vehicles (N=50104)
Variable
Partial r2 from Type I SS
Coefficient Significance
avgtotpower
0.7650
<0.0001
sched id
0.0355
<0.0001
tran type
0.0204
<0.0001
zippy
0.0184
<0.0001
model vr
0.0043
<0.0001
colimit
0.0026
<0.0001
fi type
0.0019
<0.0001
hchigh
0.0014
<0.0001
repairs
0.0011
<0.0001
aspirated
0.0009
<0.0001
testwght
0.0005
<0.0001
cat type
0.0004
<0.0001
disp
0.0004
<0.0001
fedcat
0.0004
<0.0001
cohigh
0.0001
<0.0001
odometer
0.0000
<0.0001
hclimit
0.0000
0.0001
Total r2 =0.8568
The table shows that avgtotpower dominates the regression with sched id adding small
but relatively important corrections for different driving cycles. These are the only two
operation variables in the model. The remainder of the variables in the list are vehicle
characteristic variables. Of these, tran type and zippy are the most important.
Based on the multivariate analysis for operation variables summarized in Table 5-5, the
remaining operation variables soakcat, aeon, rvp, oxyind, temp, and altcat would have appeared
at the bottom of Table 5-10 with partial r2 of approximately 0.0001 and 0.0000.
5-10
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The total r2 for the regression shown in Table 5-10 was 0.854. The remaining 15%
variability in the dataset was not able to be explained by the vehicle characteristic or operation
variables. Two important potential sources of variability are exhaust CO and HC emissions. For
vehicles that have elevated exhaust CO emissions or elevated HC emissions, their C02 emissions
must be lower because of the fuel to exhaust carbon balance. We checked whether exhaust CO
and HC emissions had an important influence on the variability of exhaust C02 by performing a
regression which begins on page A4-11. The partial r2 for CO emission rate and THC (total
hydrocarbon) emission rate were 0.0033 and 0.0005 respectively, when calculated on the same
basis as the partial r2 in Table 5-10. Thus, these additional sinks of exhaust carbon do have an
influence on C02 emission rate. We suggest that their influence be used when calculating C02
emission factors.
The remaining variability not explained by the regression is still about 15% of the total
variability in the dataset. There are a few different sources of this variability:
• The influences of interactions among the vehicle characteristic and operation
variables;
• Vehicle-to-vehicle variability not explained by the vehicle characteristic
variables;
• Condition-to-condition variability not explained by the operation variables;
• Emission variability of individual vehicles; and
• Measurement variability introduced by instrument uncertainties and deviation
from exact application of test procedures.
5-11
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5.2 C02 Emission Rate (g C02/s) for Diesel Vehicles
5.2.1 Vehicle Characteristic Variables
As explained earlier in the report, the analysis of the diesel-fueled vehicle emissions data
was performed separately for the MSOD data and the HDSS data. Both datasets combined had
1597 observations. The dataset analyzed to determine the effects of vehicle characteristics on g
C02/s for diesel-fueled vehicles was made by subsetting these observations with:
• all observations for which C02 was not missing;
• diesel-fueled vehicles;
• all cycle results;
• ambient temperatures between 68° and 86°F;
• air conditioning off; and
• low altitude.
Since the HDSS had no information for temperature and air conditioning usage, we
assumed that all HDSS data was appropriate for this analysis. The subsetting described above
resulted in a dataset for analysis with 955 observations from MSOD and 302 observations from
HDSS.
A correlation analysis of the MSOD diesel data subset of the vehicle characteristic
variables that are continuous indicated that the following are correlated with an r2 of greater than
0.5:
• disp with testwght,
• disp with road_hp;
• testwght with zippy;
• testwght with road hp;
• zippy with road_hp; and
• avgtotpower with road hp.
For the HDSS diesel dataset, the following variables were highly correlated:
• testwght with zippy
• testwght with avgtotpower
• testwght with road hp
• zippy with road_hp; and
• avgtotpower with road hp.
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These lists of correlated variables were used to help simplify and interpret the
multivariate influences of vehicle characteristic variables on the response variable gco2 s for
diesel-fueled vehicles.
Table 5-11 shows the results of the one at a time models to predict g CH2/s for diesel-
fueled vehicles from vehicle characteristic variables. The table is split into two halves to show
the separate responses for the MSOD data and the HDSS data. Some of the vehicle
characteristic variables did not change in the dataset being analyzed; the r2 for these variables are
denoted as N/A. The variables with the highest r2 tend to be those variables that are associated
with vehicle size. These include road hp, testwght, and zippy.
Table 5-11. One-at-a-Time Analysis of C02 Emission Rate
for Characteristics
of Diesel Vehicles
Variable
MSOD Data
E
[DSS Data
N (out of 955)
r2
Notes
N (out of 302)
r2
Notes
road hp
860
0.696
218
0.265
testwght
860
0.704
218
0.270
zippy
805
0.526
156
0.171
disp
892
0.486
158
0.072
colimitcat
947
0.348
220
0.099
hclimitcat
947
0.297
220
0.099
model yr
947
0.393
220
0.334
fedcat
752
0.169
200
N/A
All are HDV
aspirated
538
0.184
158
0.131
cylinder
935
0.126
158
0.088
repairs
947
0.048
N/A
N/A
tran type
866
0.030
N/A
N/A
hchigh
859
0.017
155
N/A
All are normals
odometer
832
0.000
198
0.024
cat type
566
0.003
N/A
N/A
cohigh
867
N/A
All are normals
218
N/A
All are normals
The influence of the power variables on g C02/s emissions for diesel-fueled vehicles was
investigated and the regression results are shown in Appendix Bl. The regression results for the
HDSS dataset are shown on pages Bl-1, 3, 6, and 9 and for the regressions on the MSOD diesel
data on pages Bl-32, 34, 37, and 40. Table 5-12 summarizes r2 results for these eight
regressions. Just as for C02 emissions for gasoline-fueled vehicles, avgtotpower is the power
variable which explains the largest portion of the variability in the data. It performs better than
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the power fingerprint set of four variables. When avgtotpower is already in the model, sched id
explains more of the remaining variability than does the power fingerprint. This is true for both
the MSOD dataset and the HDSS dataset.
Table 5-12. Multivariate Regression with Power Variables
Predictor Variables
MSOD
HDSS
r2
r2
partial
total
partial
total
avgtotpower
0.774
0.774
0.356
0.356
PI, P2, P3, P4
0.450
0.450
0.187
0.187
avgtotpower
sched id
0.774
0.126
0.900
0.356
0.103
0.459
avgtotpower
PI, P2, P3, P4
0.774
.097
0.871
0.356
0.082
0.438
The multivariate analysis of the vehicle characteristic variable influences on diesel-fueled
vehicle C02 emissions using the MSOD diesel data begins on page Bl-43. For this preliminary
regression, all vehicle characteristic variables were included in the regression. Because of
missing values for many of those variables and the relatively small size of the MSOD diesel
dataset, the regression was able to use only 289 observations. Accordingly, the estimated
importance for each of the many variables is relatively uncertain. To increase the size of the
dataset analyzed and, thereby, improve the ability of the regression to recognize important and
significant variables, we performed a series of sequential regressions where the least important
variables were dropped from the regression one-by-one. This was done until the remaining
variables were statistically significant. This produced the final regression on the MSOD diesel
data which begins on page B1-49. This regression was able to use 855 observations of the 955
that were available in the dataset. Table 5-13 summarizes the results of that regression. The two
power variables, avgtotpower and sched id, explained 0.900 of the variability in the dataset. The
only two vehicle characteristic variables that were found to be statistically significant were
modeljyr and tran type, which explained another 0.041 of the variability. The table shows that
model yr was more important than tran type.
In the case of the HDSS diesel data, when all of the vehicle characteristic variables were
modeled, the preliminary model, which begins on page Bl-16, was able to use only 73
observations. Just as for the MSOD diesel data regressions, the least important vehicle
characteristics were dropped from that regression until a model was obtained with only variables
that were statistically significant. This final model result begins on page Bl-21 and used 218
5-14
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observations. The results of the regression are summarized in Table 5-14. The regression had a
total r2 of 0.630 and the two power variables, avgtotpower and sched id, had a combined partial
r2 of 0.459. The only vehicle characteristic variable that was statistically significant was
modeljyr which had a partial r2 of 0.171.
Table 5-13. MSOD Data Multivariate Analysis (Page B1-49) of C02 Emission Rate
for Characteristics
of Diesel Vehicles (N=855)
Variable
Partial r2 from Type I SS
Coefficient Significance
avgtotpower
0.7729
<.0001
sched id
0.1267
<.0001
model yr
0.0307
<.0001
tran type
0.0104
<.0001
Total r2 =0.9406
Table 5-14. HDSS Data Multivariate Analysis (Page B1-21) of C02 Emission Rate
for Characteristics
of Diesel Vehicles (N=218)
Variable
Partial r2 from Type I SS
Coefficient Significance
avgtotpower
0.3561
<0.0001
sched id
0.1026
<0.0001
model yr
0.1708
<0.0001
Total r2 =0.6295
Given the relatively small size of the MSOD and HDSS diesel datasets, the final results
are remarkably consistent. Both regressions indicated that modeljyr was an important vehicle
characteristic variable. The MSOD analysis also indicated that tran type was an important
variable. Even this result is consistent between the two datasets because the HDSS dataset did
not contain transmission type information. Thus, based on these regressions, it appears that
model year and transmission type are the two most important vehicle characteristic variables.
5.2.2 Operation Variables
The dataset analyzed to determine the effects of operation on g C02/s for diesel-fueled
vehicles was made by subsetting the MSOD and HDSS datasets with:
• All observations for which C02 was not missing;
• Diesel-fueled vehicles; and
5-15
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• All cycle results except FTP composite results.
This resulted in a dataset with 1,536 observations.
A correlation analysis of the operation variables that are continuous indicated that no
variables were highly correlated.
Table 5-15 shows the results of the one variable at a time models to predict g C02/s for
diesel-fueled vehicles. The variables avgtotpower and sched id both explained a large portion of
the variability. All of the variables, when taken one-at-a-time, explain only a small part of the
variability in the dataset. The variable aeon did not change in the dataset. Therefore, its
importance to the emissions could not be determined. The variables oxyind and rvp refer to
gasoline-fueled vehicle properties and, therefore, they could not be evaluated in this analysis.
Table 5-15. One-at-a-Time Analysis of C02 Emission Rate
for Operation
of Diesel Vehicles
Variable
N (out of 1536)
r*
aeon
1394
N/A
altcat
1394
0.092
avgtotpower
1223
0.694
oxyind
878
N/A
rvp
0
N/A
sched id
1394
0.748
soakcat
1394
0.167
temp
1056
0.089
Because of the special and differing properties of the MSOD diesel data and the HDSS
diesel data, the response of the emissions to the operation variables were analyzed separately for
these two datasets.
The multivariate analysis of the operation variable influence on diesel-fueled vehicles for
C02 emissions begins on page B2-16. Table 5-16 shows a summary of those results. The
overall r2 for the model was 0.973. The model is the result of the analysis of 294 observations,
which were made on 178 vehicle repair states {msidcause). Because of missing or constant
values, the analysis of the HDSS data does not provide any information for the variables soakcat,
altcat, and aeon. The analysis uses the categorical value msid cause to remove the variability
5-16
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produced by vehicles and their characteristics. Consequently, the only operation variables that
are analyzed in this model are sched id and avgtotpower. The results in Table 5-16 show that
almost all of the variability in the dataset is explained by msid cause. The variables sched id
and avgtotpower have a combined partial r2 of only 0.093. The table, where sched id comes
before avgtotpower, shows that sched id is the more important variable. However, in another
regression which we performed where avgtotpower was above sched id in the variable list, the
partial r2 of avgtotpower was 0.0683 and for schedJd was 0.0249. Placing avgtotpower ahead of
sched id in the variable list has the advantage of using the more generally applicable variable
avgtotpower which can be calculated for any sched id driving cycle.
Table 5-16. HDSS Data Multivariate Analysis (Page B2-16) of C02 Emission Rate
for Operation
of Diesel Vehicles (N=294)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.8797
<.0001
sched id
0.0867
<.0001
avgtotpower
0.0065
<.0001
soakcat
0.0000
altcat
0.0000
aeon
0.0000
Total r2 =0.9729
The multivariate analysis of the operation variables on diesel-fueled vehicles C02
emissions for the MSOD dataset begins on page B2-44. For this analysis, 848 observations on
45 different vehicle repair states (msid cause) were used. Table 5-17 summarizes the result of
that analysis. The total r2 for the model was 0.980. The analysis shown in the table strictly
follows the data analysis procedure described in Section 4. However, we prefer to analyze the
data with msid cause listed first in the model statement to preferentially remove the variability in
the dataset caused by vehicles and their characteristics. Then, it makes sense to have
avgtotpower and sched id be the second and third variables so that the more generally applicable
avgtotpower variable comes before sched id, which is specific to the driving cycles being
analyzed. When this alternative analysis is performed, the partial r2s attributed to these three
variables are different. They become 0.8476 for msid cause, 0.0951 for avgtotpower, 0.0372 for
sched id, and 0.0009 for soakcat. In this alternative regression, all four of these variables are
also statistically significant. This alternative result shows that vehicle repair state (msid cause)
explains the largest part of the variability in the dataset. Also, avgtotpower and sched id explain
the bulk of the remaining variability in the data for the operation variables. While soakcat is
5-17
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statistically significant, it is relatively unimportant since it has a partial r2 of only 0.0009. Just as
is shown in Table 5-17, temp is unimportant and not statistically significant. The remaining
three variables were either constant for the dataset or not applicable to diesel-fueled vehicles.
Table 5-17. MSOD Data Multivariate Analysis (Page B2-44) of C02 Emission Rate
for Operation
of Diesel Vehicles (N=848)
Variable
Partial r2 from Type I SS
Coefficient Significance
sched id
0.8404
<.0001
msid cause
0.1362
<.0001
avgtotpower
0.0015
<.0001
soakcat
0.0014
<.0001
temp
0.0000
0.4608
aeon
0.0000
oxyind
0.0000
altcat
0.0000
Total r2 =0.9796
5.2.3 Special Analyses
The special analyses for the C02 emission rate of diesel vehicles include an examination
of the soak time effect and hot versus cold starting.
Soak time - The effect of soak time on the C02 emissions of diesel vehicles was
examined using the MSOD data only since no FTPs were performed on the heavy-duty vehicles
in the MSOD dataset. Only FTP Bag 1 and Bag 3 results were used for this analysis. A total of
98 observations made on 35 vehicle repair states {msidcause) were used. The regression
analysis begins on page B3-1 and is summarized in Table 5-18. Only the results in the table for
sched id should be used. All other variable results are not relevant since those variables were
used only to correct the dataset for the influences of vehicle, vehicle characteristics, and other
operation variables. The results in the table indicate that for this small dataset the difference in
emissions between Bag 1 and Bag 3 results was important and statistically significant. The
parameter estimates for the two bags are shown on page B3-4 and indicate that Bag 1 had 0.7 g
C02/s higher emissions than did Bag 3. This is the expected trend of the result since Bag 1 is a
cold start and Bag 3 is a hot start.
The diesel observations in the MSOD dataset contained no Hot Running 505 data.
Accordingly, we could not compare Hot 505 driving with FTP Bag 1 and Bag 3 driving.
5-18
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Table 5-18. MSOD Data Multivariate Analysis (Page B3-1) of C02 Emission Rate
of Diesel Vehicles
for FTP Bag 1 vs. FTP Bag 3 (N=98)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.7703
<.0001
sched id
0.1925
<.0001
avgtotpower
0.0173
<.0001
temp
0.0006
0.1812
aeon
0.0000
altcat
0.0000
Total r2 =0.9807
Hot start versus cold start for diesel HDVs - The HDSS dataset which contains
emissions information on only heavy-duty diesel vehicles contained a field that was designated
hot start or cold start. We were able to analyze this HDSS data for C02 to determine if hot
versus cold start affected the rate of C02 emissions. The regression analysis begins on page B3-
12 and is summarized in Table 5-19. Only the results of the variable hot cold should be
considered when examining the table since all other variables were used in the regression solely
for the purposes of removing variability. The table indicates that hot cold has a small
importance in the model but the coefficients were statistically significant. The regression was
performed on 137 observations on 64 vehicle repair states. The parameter estimates for the
hot cold variable are shown on page B3-16. They indicate that the cold start had a C02 emission
rate 0.8 g/s greater than for the hot start. This is the expected direction of the trend.
Table 5-19. HDSS Data Multivariate Analysis (Page B3-12) of C02 Emission Rate
of Diesel Vehicles
for Hot Start vs. Cold Start (N=137)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.8896
<.0001
sched id
0.0622
<.0001
hot cold
0.0153
<.0001
avgtotpower
0.0091
<.0001
aeon
0.0000
oxyind
0.0000
altcat
0.0000
Total r2 =0.9761
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5.2.4 Unified Result
The results for the operation variable analysis for C02 emission rate for diesel vehicles
was discussed in Section 5.2.2. The conclusion was that avgtotpower and sched id were by far
the most important operation variables. The variables soakcat and temp were relatively
unimportant. Accordingly, we performed a new analysis that included all vehicle characteristic
variables and avgtotpower and sched id to determine the unified result for the CO2 emission rate
of diesel-fueled vehicles. Just as for the vehicle characteristic analysis for the dataset, variables
which were unimportant and not significant were progressively dropped from the regression until
the remaining variables were all important and statistically significant. This was done in an
effort to maximize the sample size for the analysis.
The resulting regression is shown on page B4-1 and is summarized in Table 5-20. Only
the MSOD diesel data was used in this analysis to avoid dataset inconsistencies and to maximize
the number of predictor variables in the model. Table 5-20 shows that avgtotpower and sched id
dominated the regression. The vehicle characteristic variables model_yr and tran type still
remained in the model and the variable fedcat now appears in the model as a statistically
significant variable, but it is relatively unimportant.
Table 5-20. Unified Multivariate Analysis (page B4-1) of C02 Emission Rate
for Diesel Vehicles (N=696)
Variable
Partial r2 from Type I SS
Coefficient Significance
avgtotpower
0.7928
<.0001
sched id
0.1425
<.0001
model yr
0.0174
<.0001
tran type
0.0050
<.0001
fedcat
0.0014
<.0001
Total r2 =0.9591
Just as for the unified model for C02 emission rate for gasoline vehicles, we tried adding
the CO emission rate and the HC emission rate to the predictor variable list to estimate their
importance. In this case, both of those emission rates were found to be not statistically
significant or important in influencing the C02 emission rate; however, we know they are from a
fundamental view point.
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5.3 Determination of Fuel Type Effect on C02 Emission Rate (g C02/s)
The gasoline-fueled vehicle data and the diesel-fueled vehicle data were combined for the
purposes of evaluating the vehicle characteristic of fuel type on C02 emission rate. To avoid the
difficulties of combining the HDSS data with the MSOD data, we combined the gas and diesel
observations from only the MSOD dataset for this analysis. The striking differences of Figure 4-
6 for the HDSS diesel data with Figures 4-5 and 4-2 for the MSOD data already indicate that it is
likely that important and significant differences exist between heavy-duty diesel vehicles and
light-duty gasoline and diesel vehicles.
The dataset analyzed to determine the effects of fuel type on C02 emissions was made by
subsetting the MSOD data with:
• all observations for which C02 was not missing;
• gasoline-fueled vehicles and diesel-fueled vehicles;
• all cycle results except FTP composite results;
• temperatures between 68° and 86°F;
• air conditioning off; and
• low altitude.
and for gasoline vehicles:
• RVP from 8.5 to 9.4 psi; and
• non-oxygenated gasoline.
For the combined gasoline and diesel regression on C02, the dataset contains thousands
of observations for gasoline-fueled vehicles but only a few hundred observations for diesel-
fueled vehicles. We were concerned that, if we included all vehicle characteristic variables, that
missing values for these variables for the diesel observations would cause many of the diesel
observations to be left out of the regression. Therefore, to maximize the number of diesel
observations in the regression, we chose to evaluate only vehicle characteristic variables that
were found to be important in the separate gasoline and diesel vehicle characteristic regressions
discussed in Sections 5.1 and 5.2. Therefore, if a variable was not very important to either
gasoline- or diesel-fueled vehicles, then the variable was deleted from the regression for studying
the combined diesel and gasoline vehicle data.
5-21
-------
The vehicle characteristic variables most important to gasoline vehicle C02 were zippy,
tran type, and model year. The variables most important to diesel vehicle CO2 were tran type
and model year. The union of these two sets of variables plus the variables fuel type,
avgtotpower, and schedid were, therefore, used for the regression. The regression output begins
on page Cl-1 and used 35082 observations. The statistics summarizing the dataset are also given
in Appendix CI and are provided for the diesel- and gasoline-fueled vehicles separately.
Table 5-21 summarizes the result of the regression. The whole purpose of the regression
is to evaluate the importance and significance of the variable fueltype. The other variables are in
the regression solely to remove variability from major sources so that the importance of fueltype
can be determined. The importance and significance of the other variables have already been
evaluated in Sections 5.1 and 5.2. Table 5-21 shows that fueltype has a partial r2 of 0.0011 which
indicates that it is somewhat important but certainly much less important than avgtotpower and
sched id. Examination of the estimates for the effect of fueltype on C02 emissions on page CI-6
shows that the model indicates that g C02/s emissions are expected to be higher on the average
for gasoline-fueled vehicles.
Table 5-21. Multivariate Analysis (Page C1-1) of C02 Emission Rate
for Fuel Type Effect (N=35082)
Variable
Partial r2 from Type I SS
Coefficient Significance
avgtotpower
0.8354
<0.0001
sched id
0.0438
<0.0001
zippy
0.0199
<0.0001
tran type
0.0039
<0.0001
model yr
0.0029
<0.0001
fueltype
0.0011
<0.0001
Total r2 =0.9070
5-22
-------
5.4 CH4 Emission Rate (g CH4/s) for Gasoline Vehicles
5.4.1 Vehicle Characteristic Variables
Since the HDSS dataset contained no gasoline vehicle and no CH4 information, all data
obtained for the analysis of vehicle characteristic variables on CH4 emission rate were obtained
from the MSOD dataset. The dataset analyzed to determine the effects of vehicle characteristics
on mg CHVs for gasoline-fueled vehicles was made by subsetting the data with:
• all observations for which CH4 was not missing;
• gasoline-fueled vehicles;
• FTP composite results;
• Ambient temperatures between 68° an 86°F;
• Air conditioning off;
• Low altitude;
• RVP from 8.5 to 9.4 psi; and
• Non-oxygenated gasoline.
This resulted in a dataset with 8747 observations.
A correlation analysis of the vehicle characteristic variables that are continuous indicated
the following variables are correlated with an r2 greater than 0.5:
• disp with cylinder
• disp with testwght,
• disp with zippy;
• disp with avgtotpower,
• cylinder with testwght;
• cylinder with zippy;
• cylinder with avgtotpower; and
• testwght with avgtotpower.
This list of correlated variables was used to help simplify and interpret the multivariate
influences of vehicle characteristic variables on the response variable mgch4 s.
Table 5-22 shows the results of the one at a time models to predict mgch4 s for gasoline-
fueled vehicles. None of the vehicle characteristic variables or avgtotpower had a large r2 in one
at a time models to predict mgch4 s. The power variables sched id and the power fingerprint
variables were not evaluated because the dataset contained results from only one test cycle.
5-23
-------
Table 5-22. One-at-a-Time Analysis of CH4 Emission Rate
for Characteristics
of Gasoline Vehicles
Variable
N (out of 8747)
r
avgtotpower
5423
0.036
sched id
N/A
N/A
PI P2 P3 P4
N/A
N/A
testwght
5530
0.036
road hp
5423
0.046
fedcat
7677
0.053
disp
5531
0.050
cylinder
5531
0.040
colimitcat
8517
0.064
model yr
8747
0.128
hclimitcat
7993
0.048
cat type
8746
0.131
zippy
5530
0.030
tran type
5530
0.000
odometer
8698
0.028
aspirated
5529
0.000
ft type
8608
0.104
repairs
8747
0.012
hchigh
7993
0.210
cohigh
8517
0.219
The multivariate analysis of the vehicle characteristic influences on gasoline-fueled
vehicles CH4 emissions begins on page Dl-1. This regression which used 5086 observations
was able to achieve an r2 of only 0.320. Table 5-23 summarizes the results of the analysis. The
partial r2 indicate that the most important variables are cohigh, cat type, hchigh, and model_yr.
The table also shows that eight of the vehicle characteristic variables had significant coefficients.
However, seven variables had coefficients that were not statistically significant. This result
indicates that these seven variables are probably neither important or significant.
5-24
-------
Table 5-23. Multivariate Analysis (Page D1-1) of the CH4 Emission Rate
for Characteristics
of Gasoline Vehicles (N=5086)
Variable
Partial r2 from Type I SS
Coefficient Significance
cohigh
0.1902
<.0001
hchigh
0.0374
<.0001
cat type
0.0550
<.0001
model yr
0.0154
<.0001
disp
0.0050
<.0001
avgtotpower
0.0021
<.0001
ft type
0.0011
0.0161
tran type
0.0025
<.0001
zippy
0.0000
0.9922
colimit
0.0107
<.0001
aspirated
0.0002
0.1915
fedcat
0.0002
0.9301
odometer
0.0001
0.4804
repairs
0.0000
0.8794
hclimit
0.0000
0.9905
Total r2 =0.3199
5.4.2 Operation Variables
The dataset analyzed to determine the effects of operation on mg CHVs for gasoline
vehicles was made by subsetting the data with:
• all observations for which CH4 was not missing;
• gasoline-fueled vehicles; and
• all cycles results except FTP composite results.
All observations came from the MSOD dataset. The above data subsetting resulted in a
dataset with 53,557 observations. A correlation analysis of the operation variables that are
continuous indicated that no variables were highly correlated.
Table 5-24 shows the results of the one variable at a time model to predict mg CHVs for
gasoline-fueled vehicles. None of the operation variables explained a large portion of the
variability of the dataset.
5-25
-------
Table 5-24. One-at-a-Time Analysis of CH4 Emission Rate
for Operation
of Gasoline Vehicles
Variable
N (out of 53,557)
r
aeon
53406
0.000
alteat
53406
N/A
avgtotpower
34480
0.069
oxyind
53222
0.004
rvp
53192
0.002
sched id
53406
0.115
soakcat
53406
0.029
temp
53406
0.001
The multivariate analysis of the operation variables begins on page D2-1. In this
analysis, 34,479 observations on 3,782 different vehicle repair states {msidcause) were made.
A summary of the analysis results is shown in Table 5-25. The total r2 for the model was 0.662
and msid cause, which was used to remove the effects of vehicles and their characteristics,
explained the bulk of the variability in the dataset. All of the remaining variables in the model
were operation variables. These variables could explain only 18% of the remaining variability in
the dataset (=(0.662 - 0.586)/(l-0.586)). Most of the remaining variability that was explained by
operation variables was explained by sched id and avgtotpower. The variables rvp, soakcat, and
oxyind all had significant coefficients but explained only a small part of the variability.
Table 5-25. Multivariate Analysis (Page D2-1) of CH4 Emission Rate
for Operation
of Gasoline Vehicles (N=34479)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.5856
<.0001
sched id
0.0700
<.0001
avgtotpower
0.0040
<.0001
rvp
0.0011
<.0001
soakcat
0.0008
<.0001
oxyind
0.0001
0.0017
aeon
0.0000
0.1502
temp
0.0000
0.072
altcat
0.0000
Total r2 =0.6616
5-26
-------
5.4.3 Special Analyses
The only special analysis performed for a CH4 emission rate of gasoline vehicles was for
the determination of the effects of start versus run and soak time. Since only the MSOD dataset
contained gasoline vehicles, the dataset was subsetted to include all observations that had CH4
data and for test cycles using the Hot Running 505, FTP Bag 1, or FTP Bag 3. Three separate
regressions were used to examine the comparison of these three driving cycles.
Comparison of the Hot Running 505 with FTP Bag 1 is made with the regression shown
on page D3-1 and summarized in Table 5-26. Only the result for sched id in this table should be
used. Other results are not relevant since the other variables were used only to correct for other
effects in the dataset. The regression was performed on 280 observations from 57 vehicle repair
states. The table indicates that sched id had an important influence on this small dataset and was
statistically significant. The parameter estimates are shown on page D3-5 and indicate that the
Hot Running 505 driving had about 0.4 mg CH4/S lower emissions than did FTP Bag 1.
Table 5-26. Multivariate Analysis (Page D3-1) of CH4 Emission Rate
of Gasoline Vehicles
for Hot Running 505 vs. FTP Bag 1 (N=280)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.7327
<.0001
sched id
0.1212
<.0001
avgtotpower
0.0068
0.0013
temp
0.0000
0.9791
aeon
0.0005
0.3844
rvp
0.0002
0.5434
oxyind
0.0000
altcat
0.0000
Total r2 =0.8614
The comparison of the Hot Running 505 with FTP Bag 3 regression begins on page D3-
12 and is summarized in Table 5-27. The table indicates that the difference between the two
driving cycles was somewhat important and it was statistically significant. The parameter
estimates for the regression are shown on page D3-16 and indicate that the Hot Running 505 had
0.1 mg CH4/S lower emissions than did the FTP Bag 3.
5-27
-------
Table 5-27. Multivariate Analysis (Page D3-12) of CH4 Emission Rate
of Gasoline Vehicles
for Hot Running 505 vs. FTP Bag 3 (N=280)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.8695
<.0001
sched id
0.0065
0.0008
avgtotpower
0.0022
0.0476
rvp
0.0005
0.3347
temp
0.0000
0.8357
aeon
0.0001
0.6534
oxyind
0.0000
altcat
0.0000
Total r2 =0.8788
The comparison of the CH4 emissions of FTP Bag 1 and Bag 3 are made with the
regression beginning on page D3-23 and summarized in Table 5-28. The table indicates that
schedid explained the largest part of the variability in this small dataset of the operation
variables and the coefficient was statistically significant. The parameter estimates for this
regression are shown on page D3-27. They indicate that the FTP Bag 1 had 0.3 mg CHz/s higher
emissions than did Bag 3.
Table 5-28. Multivariate Analysis (Page D3-23) of CH4 Emission Rate
of Gasoline Vehicles
for FTP Bag 1 vs. FTP Bag 3 (N=276)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.7728
<.0001
sched id
0.0828
<.0001
avgtotpower
0.0168
<.0001
rvp
0.0002
0.5475
temp
0.0000
0.926
aeon
0.0000
0.8841
oxyind
0.0000
altcat
0.0000
Total r2 =0.8725
5.4.4 Unified Result
The results of the analysis of operation variables for the CH4 emission rate for gasoline
vehicles are shown in Table 5-25 and indicates that operation variables do not affect CH4
emissions greatly. However, the two largest operation variables in that analysis were sched id
5-28
-------
and avgtotpower. To provide a unified analysis of the vehicle characteristic and operation
variables, a dataset including all operating conditions and all driving cycles (except FTP
composite) was created and analyzed using all vehicle characteristic variables and sched id and
avgtotpower. The results of that regression are shown in Appendix D4-1 and are summarized in
Table 5-29. The overall result is similar to that seen for the vehicle characteristics analysis in
Table 5-23. That is, the vehicle characteristics variables cohigh, hchigh, and cat type are near
the top of the list. In addition, the operation variable sched id is also near the top of the list. The
variable avgtotpower is not an important variable in this regression. This is not unexpected since
there is not a fundamental connection between CH4 emission rate and avgtotpower as there is
between C02 emission rate and avgtotpower. Table 5-29 shows that even with the most
influential operation variables and all available vehicle characteristic variables, the total r2 of the
regression is only 0.357. This indicates that a large portion of the variability remains
unexplained.
Table 5-29. Unified Multivariate Analysis (page D4-1) of CH4 Emission Rate
for Gasoline Vehicles (N=32536)
Variable
Partial r2 from Type I SS
Coefficient Significance
cohigh
0.1368
<.0001
sched id
0.0797
<.0001
cat type
0.0587
<.0001
hchigh
0.0393
<.0001
model yr
0.0177
<.0001
avgtotpower
0.0116
<.0001
colimit
0.0084
<.0001
fi type
0.0027
<.0001
disp
0.0009
<.0001
odometer
0.0004
<.0001
repairs
0.0002
0.0050
tran type
0.0001
0.0766
fedcat
0.0001
0.7227
aspirated
0.0000
0.2136
zippy
0.0000
0.7490
hclimit
0.0000
0.9968
Total r2 =0.3565
5-29
-------
5.5 CH4 Emission Rate (g CH4/s) for Diesel Vehicles
5.5.1 Vehicle Characteristic Variables
The influence of vehicle characteristic variables on CH4 emission rates for diesel-fueled
vehicles could be determined using only MSOD data since the HDSS data contained no CH4
results. The dataset analyzed to determine the effects of vehicle characteristics on mgch4 s for
diesel-fueled vehicles was made by subsetting the data with:
• all observations for which CH4 was not missing;
• diesel-fueled vehicles;
• all test cycles;
• ambient temperatures between 68° an 86°F;
• air conditioning off; and
• low altitude.
This resulted in a dataset with only 155 observations. A correlation analysis of the vehicle
characteristic variables that are continuous indicated the following are correlated with an r2 of
greater than 0.5:
• disp with cylinder
• disp with road_hp;
• cylinder with road_hp; and
• ieslwghi with zippy.
This list of correlated variables was used to help simplify and interpret the multivariate
influences of vehicle characteristic variables on the response variable mgch4 s.
Table 5-30 shows the results of the one at a time models to predict mgch4 s for diesel-
fueled vehicles. None of the power variables and none of the vehicle characteristic variables
explained a large part of the variability in the dataset.
The multivariate analysis of the vehicle characteristic variable influence on the CH4
emission rate of diesel-fueled vehicles begins with a preliminary regression on page El-1. This
regression contains all of the vehicle characteristic variables available in the dataset and results
in 152 observations in the analysis. While this regression contains almost all of the observations
in the dataset, we wanted to see if removing the least important and least significant variables
from the regression would allow the more important variables to become statistically significant.
5-30
-------
Accordingly, the least important variables were removed one by one and new models built until a
reduced variable model with the most important and significant variables remained. This final
model is shown beginning on page El-6. The results of the model are summarized in Table 5-
31. The final model had a total r2 of 0.203. The variable tran type, model yi\ and schedid
each contributed approximately the same amount toward the total r2. Only tran type had a
significant coefficient. All other vehicle characteristic variables were therefore found to have
coefficients which were not statistically significant with this small dataset.
Table 5-30. One-at-a-Time Analysis of CH4 Emission Rate
for Characteristics
of Diesel Vehicles (MSOD Data Only)
Variable
N (out of 155)
r*
Notes
avgtotpower
152
0.005
sched id
155
0.079
PI P2 P3 P4
155
0.024
testwght
152
0.034
road hp
152
0.007
fedcat
155
0.005
disp
155
0.011
cylinder
155
0.017
colimitcat
155
0.038
model yr
155
0.064
hclimitcat
155
0.038
cat type
155
0.009
zippy
152
0.019
tran type
155
0.067
odometer
155
0.001
aspirated
155
0.038
fi type
155
0.038
repairs
155
N/A
All are Before
hchigh
152
N/A
All are normal
cohigh
152
N/A
All are normal
Table 5-31. Multivariate Analysis (Page E1-6) of CH4 Emission Rate
for Characteristics
of Diesel Vehicles (N=155)
Variable
Partial r2 from Type I SS
Coefficient Significance
tran type
0.0672
0.0011
model yr
0.0654
0.0597
sched id
0.0700
0.699
Total r2 =0.2027
5-31
-------
5.5.2 Operation Variables
The dataset analyzed to determine the effects of operation on g CH/s for diesel-fueled
vehicles was made by subsetting the MSOD data with:
• all observations for which mgch4 s was not missing;
• diesel-fueled vehicles; and
• all cycle results except FTP composite results.
This resulted in a dataset with 1,536 observations. A correlation analysis of the operation
variables that are continuous indicated that no variables were highly correlated.
Table 5-32 shows the results of the one variable at a time models to predict mgch4 s for
diesel-fueled vehicles. None of the variables explained a large portion of the variability in the
dataset.
Table 5-32. One at a Time Analysis
for Operation
of Diesel Vehicles
Variable
N (out of 1536)
r2
aeon
152
N/A
altcat
152
N/A
avgtotpower
149
0.005
oxyind
152
N/A
rvp
0
N/A
sched id
152
0.088
soakcat
152
0.007
temp
152
0.023
The regression results of operation variables on mgch4 s are shown beginning on page
E2-1. The results from 149 tests on 12 vehicles produced these results. The regression, which is
summarized in Table 5-33, shows that all of the operating variables together produced a model
with an r2 of only 0.233. Thus, most of the variability in CH4 was unexplained. Even
msid cause had a partial r2 of only 0.143 and was barely significant. None of the operation
variables in the regression were statistically significant. The most important operation variable
was sched id but it had a partial r2 of only 0.066. The importance of air conditioning and
altitude could not be determined from the dataset. Overall, these results indicate that the type of
vehicle operation has a minor effect on the magnitude of the CH4 emission rate.
5-32
-------
Table 5-33. Multivariate Analysis (Page E2-1) of CH4 Emission Rate
for Operation
of Diesel Vehicles (N=149)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.1425
0.0281
sched id
0.0662
0.5707
soakcat
0.0153
0.1214
temp
0.0086
0.2442
avgtotpower
0.0007
0.7396
aeon
0.0000
oxyind
0.0000
altcat
0.0000
Total r2 =0.2334
5.5.3 Special Analyses
The effect of soak time on g CHVs emissions was evaluated using only 22 observations.
The results of the regression are shown on page E3-1 and are summarized in Table 5-34. In this
regression, the CH4 emissions of Bag 1 and Bag 3 of the FTP for diesel vehicles was evaluated.
The model had an r2 0.857; however, the model also used 12 coefficients to explain the
variability of 22 observations. In this regression, we should pay attention to only the results
obtained for schedid which represents the two bags of the FTP to evaluate the effect of soak
time. All other variables in the regression were used solely to remove their effects to fairly
evaluate the effect of sched id. The results indicate that sched id had a partial r2 of 0.065, and it
was not statistically significant. This partial r2 for sched id is comparable to the value obtained
in the previous subsection for a variety of driving schedules.
Table 5-34. Multivariate Analysis (Page E3-1) of CH4 Emission Rate
of Diesel Vehicles
for FTP Bag 1 vs. FTP Bag 3 (N=22)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.7865
0.0122
sched id
0.0651
0.0735
temp
0.0055
0.5693
avgtotpower
0.0000
aeon
0.0000
altcat
0.0000
Total r2 =0.8571
5-33
-------
The parameter estimates for the regression are given on page E3-3 and indicate that on
the average FTP Bag 1 had 0.02 mg CHVs higher emissions than did Bag 3. This difference was
not statistically significant.
Comparisons could not be made between Hot Running 505 results with FTP Bags 1 and 3
since the dataset did not contain any diesel observations for Hot Running 505.
5.5.4 Unified Result
The analysis of operation variables in Section 5.5.2 did not reveal any statistically
significant operation variables that affected the CH4 emission rate of diesel vehicles.
Accordingly, because of the small sample size, there are no significant effects from operation
variables to unify with vehicle characteristic variables.
5-34
-------
5.6 Determination of Fuel Type Effect on CH4 Emission Rate (g CH4/s)
The gasoline and diesel observations were combined to evaluate the influence of fuel
type on CH4 emission rate. Since the HDSS dataset contained no CH4 data, all observations
were from the MSOD. The dataset analyzed to determine the effects of fuel type on mgch4 s
was made by sub setting the data with:
• all observations for which CH4 was not missing;
• gasoline-fueled vehicles and diesel-fueled vehicles;
• all cycle results except FTP composite results;
• ambient temperatures between 68° an 86°F;
• air conditioning off;
• low altitude; and
and for gasoline-fueled vehicles:
• RVP between 8.5 and 9.4 psi; and
• non-oxygenated gasoline.
This resulted in 144 diesel observations and 40136 gasoline observations.
Just as for the combined diesel vehicle and gasoline vehicle analysis for C02 emissions,
the combined analysis for CH4 emissions to determine the effect of fuel type used only those
vehicle characteristic variables which were most important for predicting the CH4 emissions of
gasoline vehicles or the CH4 emissions of diesel vehicles. The most important vehicle
characteristic variables for predicting the CH4 emissions of gasoline vehicles were: cohigh,
cat type, hchigh, and model yr. The most important vehicle characteristic variables for
predicting the CH4 emissions of diesel vehicles were: model yr, tran type, and sched id.
The union of these two variable lists plus the variable fueltype were used for the
regression of the combined gas and diesel CH4 dataset. The variable sched id was also included
so that the effects of different driving cycles could be accounted for. The results of that analysis
are shown on page Fl-1 and the summary of the results is shown in Table 5-35. Overall, the
model had an r2 of only 0.301. The sole purpose of the model is to determine the importance and
significance of the variable fueltype, and the presence of the other variables of the model is
solely to remove variability from the dataset so that the variable fueltype can be evaluated. The
table shows that fueltype is relatively unimportant although its coefficient is statistically
5-35
-------
significant. The parameter estimates for fuel type are shown at the bottom of page Fl-5 and at
the top of page Fl-6. These results indicate that gasoline-fueled vehicles produce slightly higher
CH4 emission rates.
Table 5-35. Multivariate Analysis (Page F1-1) of CH4 Emission Rate
for Fuel Type Effect (N=27287)
Variable
Partial r2 from Type I SS
Coefficient Significance
sched id
0.0717
<.0001
cohigh
0.1498
<.0001
hchigh
0.0263
<.0001
cat type
0.0356
<.0001
model yr
0.0167
<.0001
fueltype
0.0007
<.0001
tran type
0.0000
0.6215
Total r2 =0.3008
5-36
-------
5.7 CH4/C02 Ratio for Gasoline Vehicles
5.7.1 Vehicle Characteristic Variables
The analysis of the ratio of CH4 to C02 emissions closely follows the analysis of the CH4
emission rate. Since CH4 emissions are present in only the MSOD dataset, only observations
from the MSOD dataset can be used for this analysis. The dataset analyzed to determine the
effects of vehicle characteristics on uch4 co2 for gasoline-fueled vehicles was made by
subsetting the data with:
• all observations for which uch4 co2 was not missing;
• gasoline-fueled vehicles;
• only FTP composite test results;
• ambient temperatures between 68° an 86°F;
• air conditioning off;
• low altitude;
• RVP between 8.5 and 9.4 psi; and
• non-oxygenated gasoline
This resulted in a dataset with 8747 observations.
Table 5-36 shows the results of the one at a time models to predict uch4 co2 for
gasoline-fueled vehicles. None of the power or vehicle characteristic variables explain a large
part of the variability in the dataset.
The multivariate analysis of the vehicle characteristic influences on the ratio of CH4to
C02 emissions for gasoline-fueled vehicles begins on page Gl-1. The results of this regression
are summarized in Table 5-37. The overall r2 of the model was only 0.257. The variables which
were most important in the model were cohigh, hchigh, and cat type. Many of the variables
farther down in the list were neither important as indicated by their partial r2 nor did they have
significant coefficients.
5-37
-------
Table 5-36. One-at-a-Time Analysis of CH4/CO2 Ratio
for Characteristics
of Gasoline Vehicles
Variable
N (out of 8747)
r2
avgtotpower
5423
0.000
sched id
N/A
N/A
PI P2 P3 P4
N/A
N/A
testwght
5530
0.000
road hp
5423
0.004
fedcat
7677
0.012
disp
5531
0.000
cylinder
5531
0.003
colimitcat
8517
0.037
model yr
8747
0.116
hclimitcat
7993
0.024
cat type
8746
0.093
zippy
5530
0.002
tran type
5530
0.009
odometer
8698
0.021
aspirated
5529
0.000
fi type
8608
0.093
repairs
8747
0.010
hchigh
7993
0.192
cohigh
8517
0.204
Table 5-37. Multivariate Analysis (Page G1-1) of CH4/C02 Ratio
for Characteristics
of Gasoline Vehicles (N=5086)
Variable
Partial i2 from Type I SS
Coefficient Significance
cohigh
0.1727
<0001
hchigh
0.0313
<0001
cat type
0.0283
<0001
model yr
0.0061
0.0145
avgtotpower
0.0017
0.0008
tran type
0.0047
<0001
colimit
0.0114
<0001
fi type
0.0002
0.5847
zippy
0.0002
0.2587
aspirated
0.0002
0.2985
disp
0.0001
0.4277
fedcat
0.0001
0.9679
repairs
0.0000
0.602
hclimit
0.0000
0.9768
odometer
0.0000
0.9646
Total r2 =0.2571
5-38
-------
5.7.2 Operation Variables
The dataset analyzed to determine the effects of operation on CH4/CO2 ratio for gasoline
vehicles was made by subsetting the data with:
• all observations for which uch4 co2 was not missing;
• gasoline-fueled vehicles; and
• all cycle results except FTP composite results.
This resulted in a dataset with 54,030 observations. A correlation analysis of the operation
variables that are continuous indicated that no variables were highly correlated.
Table 5-38 shows the results of the one variable at a time models to predict the CH4/CO2
ratio for gasoline-fueled vehicles. None of the operation variables explained a large portion of
the variability in the dataset.
Table 5-38. One-at-a-Time Analysis of CH4/CO2 Ratio
for Operation
of Gasoline Vehicles
Variable
N (out of 54030)
r
aeon
53896
0.000
altcat
53896
N/A
avgtotpower
34477
0.000
oxyind
53712
0.001
rvp
53682
0.004
sched id
53876
0.017
soakcat
53896
0.009
temp
53896
0.000
The multivariate analysis of the operation variables influence on gasoline-fueled vehicle
CH4/CO2 ratio begins on page G2-1. This analysis was made on 34,468 observations on 3,782
vehicle repair states {msidcause). A summary of the results is shown in Table 5-39. The total
r2 for the model was 0.593. The variability contributed to the dataset from vehicle and vehicle
characteristics was removed by including the variable msid cause. This variable had a partial r2
of 0.575 and accounted for the bulk of the variability in the dataset. The operation variables
accounted for only 4% of the variability that remained after the vehicle characteristics variability
was removed from the data. The variable schedid had a partial r2 of 0.016 which indicates that
it was not very important in explaining the variability in the CH4/CO2 ratio for gasoline vehicles.
5-39
-------
The variables sched id, rvp, and soakcat all had statistically significant coefficients. The other
four variables which could be analyzed were neither important nor statistically significant.
Table 5-39. Multivariate Analysis (Page G2-1) of CH4/C02 Ratio
for Operation
of Gasoline Vehicles (N=34468)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.5753
<.0001
sched id
0.0158
<.0001
rvp
0.0012
<.0001
soakcat
0.0002
0.0003
avgtotpower
0.0000
0.3771
temp
0.0000
0.5154
oxyind
0.0000
0.4617
aeon
0.0000
0.6044
altcat
0.0000
Total r2 =0.5926
5.7.3 Special Analyses
The influence of start versus running and soak time on the CH4/CO2 ratio for gasoline
vehicles was investigated by performing regressions on the results from Hot Running 505, FTP
Bag I, and FTP Bag 3 test results.
Comparison of Hot Running 505 and FTP Bag 1 was made using the regression starting
on page G3-1 and summarized in Table 5-40. The results indicate (see sched id) that the cycles
had an important influence on the ratio and that the coefficient was statistically significant. The
parameter estimates are given on page G3-5 and indicate that the ratio was lower for the hot 505
than for the FTP Bag 1 by about 76 |Lxg CHVg C02.
The comparison of the Hot Running 505 versus FTP Bag 3 results are made in the
regression beginning on page G3-12 and summarized in Table 5-41. The table indicates (see
sched id) that the difference between these procedures is not very important but the coefficients
are statistically significant. The parameter estimates shown on page G3-16 indicate that the Hot
Running 505 was lower than the FTP Bag 3 by about 19 |Lxg CHVg C02.
5-40
-------
Table 5-40. Multivariate Analysis (Page G3-1) of CH4/CO2 Ratio
of Gasoline Vehicles
for Hot Running 505 vs. FTP Bag 1 (N=279)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.7153
<.0001
sched id
0.1321
<.0001
rvp
0.0002
0.5924
avgtotpower
0.0001
0.7193
temp
0.0019
0.1029
aeon
0.0000
0.8491
oxyind
0.0000
altcat
0.0000
Total r2 =0.8496
Table 5-41. Multivariate Analysis (Page G3-12) of CH4/CO2 Ratio
of Gasoline Vehicles
for Hot Running 505 vs. FTP Bag 3 (N=279)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.8503
<.0001
sched id
0.0096
0.0001
rvp
0.0009
0.2444
aeon
0.0020
0.0776
avgtotpower
0.0005
0.3693
temp
0.0002
0.5797
oxyind
0.0000
altcat
0.0000
Total r2 =0.8634
The comparison of FTP Bag 1 with FTP Bag 3 was made with the regression beginning
on page G3-23 and summarized in Table 5-42. The table indicates (see sched id) that the two
FTP bag results had a somewhat important effect on the ratio for this small dataset and the
coefficients were statistically significant. The parameter estimates on page G3-27 indicate that
Bag 1 had a higher ratio than Bag 3 on the average by about 60 |j,g CFL/g C02.
5-41
-------
Table 5-42. Multivariate Analysis (Page G3-23) of CH4/CO2 Ratio
of Gasoline Vehicles
for FTP Bag 1 vs. FTP Bag 3 (N=274)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.7678
<.0001
sched id
0.0844
<.0001
avgtotpower
0.0033
0.0279
rvp
0.0001
0.7171
aeon
0.0021
0.0818
temp
0.0000
0.8093
oxyind
0.0000
altcat
0.0000
Total r2 =0.8577
5-42
-------
5.8 CH4/C02 Ratio for Diesel Vehicles
5.8.1 Vehicle Characteristic Variables
The dataset analyzed to determine the effects of vehicle characteristics on uch4 co2 for
diesel-fueled vehicles was made by subsetting MSOD data with:
• all observations for which uch4 co2 was not missing;
• diesel-fueled vehicles;
• all cycle results;
• ambient temperatures between 68° an 86°F;
• air conditioning off; and
• low altitude.
This resulted in a dataset with 157 observations.
Table 5-43 shows the results of the one at a time models to predict uch4 co2 for diesel-
fueled vehicles. All of the power and vehicle characteristic variables show only small r2 for these
models. Models could not be built for repairs, hchigh, and cohigh because all of the values in
the dataset for those variables were constant.
The preliminary regression of the dataset against all vehicle characteristic variables
begins on page Hl-1. In this regression, only tran type had a significant coefficient. In an effort
to improve the model by making the uncertainty on the more important variable coefficients
smaller, we progressively dropped the least important variables in the model and performed new
regressions. The result is the final regression which begins on page HI-6 and is summarized in
Table 5-44. This regression which used 155 observations had a total r2 of only 0.253. The
variables in this final regression were sched id, tran type, and model yr. Further removal of
any one of these variables from the model would significantly reduce the r2 for the regression.
Of these three, sched id has the highest partial r2 and tran type has the most significant
coefficient.
5-43
-------
Table 5-43. One-at-a-Time Analysis of CH4/CO2 Ratio
for Characteristics
of Diesel Vehicles (MSOD Data Only)
Variable
N (out of 155)
r
Notes
avgtotpower
152
0.025
sched id
155
0.155
PI P2 P3 P4
155
0.041
testwght
152
0.043
road hp
152
0.010
fedcat
155
0.008
disp
155
0.018
cylinder
155
0.027
colimitcat
155
0.086
model yr
155
0.110
hclimitcat
155
0.086
cat type
155
0.015
zippy
152
0.024
tran type
155
0.103
odometer
155
0.001
aspirated
155
0.086
ft type
155
0.086
repairs
155
N/A
All are Before
hchigh
152
N/A
All are normal
cohigh
152
N/A
All are normal
Table 5-44. Multivariate Analysis (Page H1-6) of CH4/C02 Ratio
for Characteristics
of Diesel Vehicles (N=155)
Variable
Partial r2 from Type I SS
Coefficient Significance
sched id
0.1385
0.0706
tran type
0.0491
0.0037
model yr
0.0653
0.0462
Total r2 =0.2529
5.8.2 Operation Variables
The dataset analyzed to determine the effects of operation on uch4 co2 for diesel-fueled
vehicles was made by subsetting MSOD data with:
• all observations for which CH4 and C02 were not missing;
• diesel-fueled vehicles; and
• all cycle results except FTP composite results.
5-44
-------
The resulting dataset had 1,536 observations. A correlation analysis of the operation
variables that are continuous indicated that no variables were highly correlated.
Table 5-45 shows the results of the one variable at a time models to predict the CH4/CO2
ratio for diesel-fueled vehicles. None of the variables explained a large portion of the variability
in the dataset.
Table 5-45. One-at-a-Time Analysis of CH4/ C02 Ratio
for Operation
of Diesel Vehicles
Variable
N (out of 1536)
r*
aeon
154
N/A
altcat
154
N/A
avgtotpower
149
0.025
oxyind
154
N/A
rvp
0
N/A
sched id
152
0.149
soakcat
154
0.003
temp
154
0.021
The multivariate analysis of the operation variable influence on diesel-fueled vehicles
CH4/CO2 ratio begins on page H2-1. This analysis was made on 149 observations on 12 vehicle
repair states {msidcause). Table 5-46 provides a summary of the analysis. The variable
msid cause, which was used to remove the effects of vehicle and vehicle characteristics,
explained the largest part of the variability in the dataset. Overall, the r2 for the model was
0.256. The variables sched id and soakcat were the most important of the operation variables.
However, none of the operation variables had statistically significant coefficients. This may
mean that the dataset being analyzed is too small to successfully evaluate the influence of
operation variables.
5-45
-------
Table 5-46. Multivariate Analysis (Page H2-1) of CH4/ C02 Ratio
for Operation
of Diesel Vehicles (N=149)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.1587
0.0111
sched id
0.0641
0.5724
soakcat
0.0255
0.0430
temp
0.0080
0.2551
avgtotpower
0.0001
0.9189
aeon
0.0000
oxyind
0.0000
altcat
0.0000
Total r2 =0.2563
5.8.3 Special Analyses
The regression to investigate the effect of soak time on the ratio of CH4 to C02 emissions
for diesel vehicles is shown beginning on page H3-1 and is summarized in Table 5-47. Only 22
observations on 11 vehicles were available to study this effect. Only results from FTP Bag 1 and
Bag 3 were used in the regression to see the effect of soak time. Other variables are in the model
to correct for the influences of other operating and vehicle characteristics that were also changing
in the dataset. The regression results indicated that schedid did not have a significant influence
on the ratio of CH4 to C02. Thus, the regression indicates that, for this dataset, soak time did not
have a statistically significant influence on the ratio. The partial r2 of sched id was 0.035 and,
therefore, we also conclude that it is not very important.
A comparison of Hot 505 results with FTP Bag 1 and Bag 3 results could not be made
since no Hot 505 results for diesel vehicles were in the dataset.
Table 5-47. Multivariate Analysis (Page H3-1) of CH4/C02
for Diesel Vehicles
for FTP Bag 1 vs. FTP Bag 3 (N=22)
Variable
Partial r2 from Type I SS
Coefficient Significance
msid cause
0.8496
0.0041
sched id
0.0345
0.1313
temp
0.0034
0.6128
avgtotpower
0.0000
aeon
0.0000
altcat
0.0000
Total r2 =0.8875
5-46
-------
5.8.4 Dependence of CH4 Emission Rate on C02 Emission Rate
Up to this point in the investigation of the influence of operation variables on CH4
emissions from diesel vehicles, we have found that there is no evidence that vehicle operation
has an important or statistically significant effect on CH4 emission rate. This conclusion was
reached by regressing CH4 against operation variables and the ratio of CH4 to C02 against
operation variables. It may also be possible that CH4 could be explained in relation to fuel
consumption. This could be discovered by an examination of CH4 emissions in comparison with
C02 emissions. In general, it might be expected that as fuel consumption increases, CH4
emissions might increase.
We pursued this avenue by regressing mg CHVs against g C02/s. The result, which is
shown on page H3-10, indicates that g C02/s had no significant or important influence on mg
CHVs. However, plots of the CH4 versus C02 data showed that both variables tended to have
skewed distributions of values. This tendency, which is commonly seen in automotive emission
data, produces extreme values on such a plot and can lead to regression results which are heavily
dominated by a few points. To help resolve the skewed characteristics of the data, the plot was
remade using the logs of the CHi and C02 values. In log-log space, the plot of CHi versus C02
appeared to be homogeneous but no obvious trend was observed. When the plot was made for
each of the individual 12 vehicles in the dataset, two of the vehicles showed a linear trend
between CH4 and C02.
To follow up on these graphical observations, we modeled the log of CH4 against the log
of C02. This regression , which begins on page H3-12, produced a model with an r2 of 0 and
demonstrated that C02 had no significant influence on CH4. However, when we modeled the log
of CH4 against the log of C02 and msid cause (see page H3-14), we found that both of those
variables were statistically significant. From these regression and graphical results, we conclude
that the small amount of data (152 observations on 12 vehicles) indicates that mg CH/s from
diesel vehicles is approximately proportional to g C02/s for individual vehicles, but the
proportionality constant is different for different vehicles.
5-47
-------
5.9 Determination of Fuel Type Effect on CH4/C02 Ratio
The combined data for gasoline-fueled and diesel-fueled vehicles was used to evaluate
the importance and significance of fuel type on the ratio of CH4 to C02 emissions. The dataset
analyzed to determine the effects of vehicle characterization variables on uch4 co2 was made by
subsetting the MSOD data with:
• all observations for which uch4 co2 was not missing;
• gasoline-fueled vehicles and diesel-fueled vehicles;
• all cycle results except FTP composite results;
• ambient temperatures between 68° an 86°F;
• air conditioning off;
• low altitude;
and for gasoline vehicles:
• RVP between 8.5 and 9.4 psi; and
• non-oxygenated gasoline.
This resulted in a dataset with 40277 observations.
The data was modeled using vehicle characterization variables that were most important
to uch4 co2 for gasoline vehicles, which were cohigh, hchigh, and cat type, and the vehicle
characterization variables that were important to uch4 co2 for diesel-fueled vehicles which were
tran type, sched id, and model yr. The dataset was analyzed by performing a regression with
these six variables and fueltype. The other six variables in the regression only appear in the
regression to correct for the influence of those important variables so that the importance and
significance offueltype can be more accurately determined. The resulting regression is shown
beginning on page 11-1. The regression was able to use 27714 observations, of which only 139
were diesel observations and the balance were gasoline observations. A summary of the
regression is shown in Table 5-48. The overall r2 for the model was only 0.193. While fueltype
was statistically significant in the regression, it had a partial r2 of only 0.0003. The variable
fueltype did not have an important influence of the ratio of CH4 to C02 emissions.
5-48
-------
Table 5-48. Multivariate Analysis (Page 11-1) of CH4/CO2 Ratio
for Fuel Type Effect (N=27714)
Variable
Partial r2 from Type I SS
Coefficient Significance
sched id
0.0211
<.0001
cohigh
0.1254
<.0001
hchigh
0.0180
<.0001
cat type
0.0153
<.0001
model yr
0.0087
<.0001
tran type
0.0037
<.0001
fueltype
0.0003
0.0015
Total r2 =0.1925
5-49
-------
DETERMINATION OF
IMPORTANT
PARAMETERS FOR C02
AND CH4 EMISSION
FACTOR MODELING
Final Report
Appendices
EPA Contract No. 68-C-00-112
Work Assignment No. 1-08
Prepared for:
U.S. Environmental Protection
Agency
Prepared by:
Eastern Research Group
December 6, 2001
-------
ERG No.: 0136.01.008.001
EPA Contract No.: 68-C-00-112
Work Assignment No.: 1-08
DETERMINATION OF IMPORTANT PARAMETERS FOR
C02 AND CII4 EMISSION FACTOR MODELING
Final Report
Appendices
EPA Contract No. 68-C-00-112
Work Assignment No. 1-08
Prepared for:
Ms. Cynthia Johnson
Contracts Management Division
U.S. Environmental Protection Agency
4411 Montgomery Road
Norwood, OH 45212
Prepared by:
Timothy H. DeFries
William Gerber
Sandeep Kishan
Eastern Research Group
5608 Parkcrest Drive, Suite 100
Austin, TX 78731-4947
December 6, 2001
C:\My DocumentsYEPA WA 8VEPA-011206_Apxs for pdf.doc
-------
List of Appendices
Appendix A1
Appendix A2
Appendix A3
Appendix A4
Appendix B1
Appendix B2
Appendix B3
Appendix B4
Appendix CI
Appendix D1
Appendix D2
Appendix D3
Appendix D4
Appendix El
Appendix E2
Appendix E3
Appendix F1
Appendix G1
Appendix G2
Appendix G3
Appendix HI
Appendix H2
Appendix H3
Appendix II
Dependence of gC02/s for Gasoline Vehicles on Vehicle Characteristics
Dependence of gC02/s for Gasoline Vehicles on Operating Conditions
Dependence of gC02/s for Gasoline Vehicles on Special Conditions
Unified Result for gC02/s for Gasoline Vehicles
Dependence of gC02/s for Diesel Vehicles on Vehicle Characteristics
Dependence of gC02/s for Diesel Vehicles on Operating Conditions
Dependence of gC02/s for Diesel Vehicles on Special Conditions
Unified Results of gC02/s for Diesel Vehicles
Dependence of gC02/s for Combined Vehicles on Vehicle Characteristics
Dependence of gCH4/s for Gasoline Vehicles on Vehicle Characteristics
Dependence of gCH4/s for Gasoline Vehicles on Operating Conditions
Dependence of gCH4/s for Gasoline Vehicles on Special Conditions
Unified Results for mg CH4/s for Gasoline Vehicles
Dependence of gCH4/s for Diesel Vehicles on Vehicle Characteristics
Dependence of gCH4/s for Diesel Vehicles on Operating Conditions
Dependence of gCH4/s for Diesel Vehicles on Special Conditions
Dependence of gCH4/s for Combined Vehicles on Vehicle Characteristics
Dependence of gCH4/gC02 for Gasoline Vehicles on Vehicle
Characteristics
Dependence of gCH4/gC02 for Gasoline Vehicles on Operating
Conditions
Dependence of gCH4/gC02 for Gasoline Vehicles on Special Conditions
Dependence of gCH4/gC02 for Diesel Vehicles on Vehicle Characteristics
Dependence of gCH4/gC02 for Diesel Vehicles on Operating Conditions
Dependence of gCH4/gC02 for Diesel Vehicles on Special Conditions
Dependence of gCH4/gC02 for Combined Vehicles on Vehicle
Characteristics
-------
Appendix A1
Dependence of gC02/s for Gasoline Vehicles on Vehicle
Characteristics
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 1
13:48 Friday, December 7, 2001
The GLM Procedure
Number of observations 59018
NOTE: Due to missing values, only 34623 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas. sas
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline
Al-1
2
-------
13:48 Friday, December 7, 2001
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
1 39525.05837
34621 8896.44178
34622 48421.50015
Mean Square F Value Pr > F
39525.05837 153814 <.0001
0.25697
R-Square Coeff Var Root MSE gco2_s Mean
0.816271 19.64234 0.506919 2.580745
Source
avgtotpower
DF
1
Type I SS
39525.05837
Mean Square
39525.05837
F Value
153814
Pr > F
<.0001
Source
avgtotpower
DF Type II SS
1 39525.05837
Mean Square
39525.05837
F Value
153814
Pr > F
<.0001
Parameter
Intercept
avgtotpower
Estimate
1.084088137
0.216301424
Standard
Error
0. 00468879
0. 00055152
t Value
231.21
392.19
Pr > |t|
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-2
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 3
13:48 Friday, December 7, 2001
The GLM Procedure
Number of observations 59018
NOTE: Due to missing values, only 58350 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-3
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 4
13:48 Friday, December 7, 2001
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
4 47416.8363
58345 75420.8119
58349 122837.6482
Mean Square
11854.2091
1.2927
F Value
9170.33
Pr > F
<.0001
R-Square Coeff Var Root MSE gco2_s Mean
0.386012 41.73726 1.136956 2.724080
Source
Pi
p2
p3
p4
DF
1
1
1
1
Type I SS
403.73391
37537.73460
8937.79468
537.57310
Mean Square
403.73391
37537.73460
8937.79468
537.57310
F Value
312.33
29038.9
6914.21
415.86
Pr > F
<.0001
<.0001
<.0001
<.0001
Source
Pi
p2
p3
p4
DF
1
1
1
1
Type II SS
2745.80595
16136.16585
851.27353
537.57310
Mean Square
2745.80595
16136.16585
851.27353
537.57310
F Value
2124.14
12482.8
658.54
415.86
Pr > F
<.0001
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-4
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 5
13:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter Estimate Error t Value Pr > |t|
Intercept 0.7209992 0.02891233 24.94 <.0001
pi 3.2927623 0.07144457 46.09 <.0001
p2 22.1681795 0.19841460 111.73 <.0001
p3 64.0789119 2.49703336 25.66 <.0001
p4 145.3445404 7.12727868 20.39 <.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-5
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 6
13:48 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 37 40_MPH ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5
CACYC6 CACYC7 CDH226 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G
FWY-HI HWFET IM240 LA92 LSP1 LSP2 LSP3 NYCC RAMP SCC12 SCC36 ST01 UNCFTP US06
Number of observations 59018
NOTE: Due to missing values, only 34623 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-6
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 7
13:48 Friday, December 7, 2001
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
37 41459.78379
34585 6961.71636
34622 48421.50015
Mean Square
1120.53470
0.20129
F Value
5566.69
Pr > F
<.0001
R-Square
0.856227
Coeff Var
17.38478
Root MSE
0.448657
gco2_s Mean
2.580745
Source
avgtotpower
sched id
DF
1
36
Type I SS
39525.05837
1934.72542
Mean Square
39525.05837
53.74237
F Value
196356
2 66.99
Pr > F
<.0001
<.0001
Source
avgtotpower
sched id
DF
1
36
Type II SS
11845.22410
1934.72542
Mean Square
11845.22410
53.74237
F Value
58845.7
2 66.99
Pr > F
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-7
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 8
13:48 Friday, December 7, 2001
Dependent Variable: gco2_s
Parameter
Intercept
avgtotpower
sched
id
40 MPH
sched
id
ART-CD
sched
id
ART-EF
sched
id
CAART1
sched
id
CAART2
sched
id
CAART3
sched
id
CACYC1
sched
id
CACYC2
sched
id
CACYC3
sched
id
CACYC4
sched
id
CACYC5
sched
id
CACYC6
sched
id
CACYC7
sched
id
CDH22 6
sched
id
F505
sched
id
FTP bnl
sched
id
FTP bn2
sched
id
FTP bn3
sched
id
FWY-AC
sched
id
FWY-D
sched
id
FWY-E
sched
id
FWY-F
sched
id
FWY-G
sched
id
FWY-HI
sched
id
HWFET
sched
id
IM240
The GLM
Procedure
Standard
Estimate
Error
t Value
Pr > |t|
-0.580571742 I
3 0.04247114
-13.67
<.0001
0.260156282
0. 00107245
242.58
<.0001
1.696143811 I
3 0.45032072
3. 77
0. 0002
1.274476883 I
3 0.07258179
17.56
<.0001
1.501151134 I
3 0.06716569
22.35
<.0001
0.800692545 I
3 0.07366609
10. 87
<.0001
0.552870768 I
3 0.07206579
7. 67
<.0001
2.748249609 I
3 0.07090309
38.76
<.0001
0.568850242 I
3 0.07048177
8. 07
<.0001
1.783425631 I
3 0.07043301
25.32
<.0001
0.729266993 I
3 0.07189009
10.14
<.0001
0.978549717 I
3 0.07134512
13. 72
<.0001
0.507924896 I
3 0.07141849
7.11
<.0001
1.268845797 I
3 0.07348492
17.27
<.0001
1.313684931 I
3 0.07433474
17. 67
<.0001
1.006819099 I
3 0.05997549
16.79
<.0001
1.230068959 I
3 0.03847597
31. 97
<.0001
1.579813121 I
3 0.03711158
42.57
<.0001
1.465144645 I
3 0.03972756
36.88
<.0001
1.241234555 I
3 0.03711217
33. 45
<.0001
0.008970472 I
3 0.10688696
0. 08
0.9331
-1.684793617 I
3 0.06016965
-28.00
<.0001
0.441668138 I
3 0.07203149
6.13
<.0001
1.367510474 I
3 0.05406134
25.30
<.0001
1.770333671 I
3 0.06308405
28. 06
<.0001
-1.449829415 I
3 0.05126024
-28.28
<.0001
1.292344729 I
3 0.06896826
18.74
<.0001
1.195251486 I
3 0.03647560
32.77
<.0001
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-8
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 9
13:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
sched id
LA92
1.105789321 B
0. 05290866
K)
O
O
<.0001
sched id
LSP1
1.155911784 B
0. 04654810
K)
CO
CO
<.0001
sched id
LSP2
1.420954034 B
0.04629378
30. 69
<.0001
sched id
LSP3
1.928567492 B
0.04618552
41.76
<.0001
sched id
NYCC
1.778359565 B
0. 05205256
34.16
<.0001
sched id
RAMP
-0.546075212 B
0.08639374
-6. 32
<.0001
sched id
SCC12
1.419704317 B
0. 04177916
CO
CO
CO
<.0001
sched id
SCC36
1.232897675 B
0.03750376
32. 87
<.0001
sched id
ST01
1.675602786 B
0.04678424
CO
en
CO
K)
<.0001
sched id
UNCFTP
1.425370150 B
0. 05833512
24. 43
<.0001
sched id
USO 6
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-9
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 10
13:48 Friday, December 7, 2001
The GLM Procedure
Number of observations 59018
NOTE: Due to missing values, only 34623 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-10
-------
All cycles, 25C, AC off,
not High Altitude, 9 RVP, Non-Oxy Gasoline 11
13:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
5
39642.37929
7928.47586
31262.8
<.0001
Error
34617
8779.12086
0.25361
Corrected Total
34622
48421.50015
R-Square
Coeff Var Root
MSE gco2 s
Mean
0.818694
19.
,51352 0.503594 2.580745
Source
DF
Type I SS
Mean Square
F Value
Pr > F
avgtotpower
1
39525.05837
39525.05837
155851
<.0001
Pi
1
2.25706
2.25706
CO
O
0. 0029
p2
1
7.60383
7.60383
K)
CO
<.0001
p3
1
99.84788
99.84788
393.71
<.0001
p4
1
7.61215
7.61215
CO
o
o
K)
<.0001
Source
DF
Type II SS
Mean Square
F Value
Pr > F
avgtotpower
1
16753.26146
16753.26146
66059.9
<.0001
Pi
1
0.79505
0.79505
3.13
0. 0766
p2
1
10.11656
10.11656
CO
CO
<.0001
p3
1
1.28987
1.28987
5. 09
0. 0241
p4
1
7.61215
7.61215
CO
o
o
K)
<.0001
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-11
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 12
13:48 Friday, December 7, 2001
Dependent Variable: gco2_s
Parameter
Intercept
avgtotpower
Pi
p2
p3
p4
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-12
The GLM Procedure
Estimate
Standard
Error
t Value
Pr > |t|
1. 07527232
0.22734264
-0.07345382
-0.93028265
-5.21656376
-35.02412537
0. 01627642
0.00088453
0.04148569
0.14729203
2.31308714
6.39284890
66.06
257.02
-1.77
-6. 32
-2.26
-5. 48
<.0001
<.0001
0. 0766
<.0001
0. 0241
<.0001
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 13
13:48 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 37 40_MPH ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5
CACYC6 CACYC7 CDH226 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G
FWY-HI HWFET IM240 LA92 LSP1 LSP2 LSP3 NYCC RAMP SCC12 SCC36 ST01 UNCFTP US06
Number of observations 59018
NOTE: Due to missing values, only 34623 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-13
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 14
13:48 Friday, December 7, 2001
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
37 41459.78379
34585 6961.71636
34622 48421.50015
Mean Square
1120.53470
0.20129
F Value
5566.69
Pr > F
<.0001
R-Square
0.856227
Coeff Var
17.38478
Root MSE
0.448657
gco2_s Mean
2.580745
Source
avgtotpower
sched id
DF
1
36
Type I SS
39525.05837
1934.72542
Mean Square
39525.05837
53.74237
F Value
196356
2 66.99
Pr > F
<.0001
<.0001
Source
avgtotpower
sched id
DF
1
36
Type II SS
11845.22410
1934.72542
Mean Square
11845.22410
53.74237
F Value
58845.7
2 66.99
Pr > F
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-14
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 15
13:48 Friday, December 7, 2001
Dependent Variable: gco2_s
Parameter
Intercept
avgtotpower
sched
id
40 MPH
sched
id
ART-CD
sched
id
ART-EF
sched
id
CAART1
sched
id
CAART2
sched
id
CAART3
sched
id
CACYC1
sched
id
CACYC2
sched
id
CACYC3
sched
id
CACYC4
sched
id
CACYC5
sched
id
CACYC6
sched
id
CACYC7
sched
id
CDH22 6
sched
id
F505
sched
id
FTP bnl
sched
id
FTP bn2
sched
id
FTP bn3
sched
id
FWY-AC
sched
id
FWY-D
sched
id
FWY-E
sched
id
FWY-F
sched
id
FWY-G
sched
id
FWY-HI
sched
id
HWFET
sched
id
IM240
The GLM
Procedure
Standard
Estimate
Error
t Value
Pr > |t|
-0.580571742 I
3 0.04247114
-13.67
<.0001
0.260156282
0. 00107245
242.58
<.0001
1.696143811 I
3 0.45032072
3. 77
0. 0002
1.274476883 I
3 0.07258179
17.56
<.0001
1.501151134 I
3 0.06716569
22.35
<.0001
0.800692545 I
3 0.07366609
10. 87
<.0001
0.552870768 I
3 0.07206579
7. 67
<.0001
2.748249609 I
3 0.07090309
38.76
<.0001
0.568850242 I
3 0.07048177
8. 07
<.0001
1.783425631 I
3 0.07043301
25.32
<.0001
0.729266993 I
3 0.07189009
10.14
<.0001
0.978549717 I
3 0.07134512
13. 72
<.0001
0.507924896 I
3 0.07141849
7.11
<.0001
1.268845797 I
3 0.07348492
17.27
<.0001
1.313684931 I
3 0.07433474
17. 67
<.0001
1.006819099 I
3 0.05997549
16.79
<.0001
1.230068959 I
3 0.03847597
31. 97
<.0001
1.579813121 I
3 0.03711158
42.57
<.0001
1.465144645 I
3 0.03972756
36.88
<.0001
1.241234555 I
3 0.03711217
33. 45
<.0001
0.008970472 I
3 0.10688696
0. 08
0.9331
-1.684793617 I
3 0.06016965
-28.00
<.0001
0.441668138 I
3 0.07203149
6.13
<.0001
1.367510474 I
3 0.05406134
25.30
<.0001
1.770333671 I
3 0.06308405
28. 06
<.0001
-1.449829415 I
3 0.05126024
-28.28
<.0001
1.292344729 I
3 0.06896826
18.74
<.0001
1.195251486 I
3 0.03647560
32.77
<.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-15
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 16
13:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
sched id
LA92
1.105789321 B
0. 05290866
K)
O
O
<.0001
sched id
LSP1
1.155911784 B
0. 04654810
K)
CO
CO
<.0001
sched id
LSP2
1.420954034 B
0.04629378
30. 69
<.0001
sched id
LSP3
1.928567492 B
0.04618552
41.76
<.0001
sched id
NYCC
1.778359565 B
0. 05205256
34.16
<.0001
sched id
RAMP
-0.546075212 B
0.08639374
-6. 32
<.0001
sched id
SCC12
1.419704317 B
0. 04177916
CO
CO
CO
<.0001
sched id
SCC36
1.232897675 B
0.03750376
32. 87
<.0001
sched id
ST01
1.675602786 B
0.04678424
CO
en
CO
K)
<.0001
sched id
UNCFTP
1.425370150 B
0. 05833512
24. 43
<.0001
sched id
USO 6
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-16
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 17
13:48 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Class Levels Values
fedcat 6 Fed_HDV Fed_LDTl Fed_LDT2 Fed_LDT3 Fed_LDT4 Fed_LDV
model_yr 26 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
colimit 12 3.2 3.4 4.4 5 6.7 7 10 14.4 15 18 20 39
hclimit 8 0.25 0.41 0.8 1.18 1.5 1.7 2 3.4
fi_type 3 NOTFI PFI TBI
cat_type 4 3WAY NONE OX3W OXID
aspirated 2 CHARGED NATURAL
tran_type 2 AUTO MANUAL
repairs 2 A B
cohigh 2 0 1
hchigh 2 0 1
Number of observations 59018
NOTE: Due to missing values, only 32318 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-17
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 18
13:48 Friday, December 7, 2001
Dependent Variable: resid
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
55 1611.742649
32262 4493.915196
32317 6105.657845
Mean Square
29.304412
0.139294
F Value
210.38
Pr > F
<.0001
R-Square
Coeff Var
Root MSE
resid Mean
0.263975
¦24388.47 0.
373222 -0.001530
Source
DF
Type I SS
Mean Square
F Value
Pr > F
tran type
1
568.9166470
568.9166470
4084.28
<.0001
model yr
24
171.4534885
7.1438954
51.29
<.0001
zippy
1
580.6509445
580.6509445
4168.52
<.0001
colimit
10
82.3801920
8.2380192
59.14
<.0001
fi type
2
44.8347996
22.4173998
160.94
<.0001
fedcat
5
24.0861963
4.8172393
34.58
<.0001
repairs
1
32. 9526739
32.9526739
236.57
<.0001
cat type
3
13.7949497
4.5983166
33. 01
<.0001
aspirated
1
15.2313700
15.2313700
109.35
<.0001
hchigh
1
42. 8232887
42. 8232887
307. 43
<.0001
testwght
1
19.2678671
19.2678671
138.32
<.0001
cohigh
1
6. 0880891
6.0880891
43. 71
<.0001
odometer
1
4.5486554
4.5486554
32. 65
<.0001
disp
1
4.2886669
4.2886669
30.79
<.0001
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-18
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 19
13:48 Friday, December 7, 2001
Dependent Variable: resid
The GLM Procedure
Source
DF
Type I SS
Mean Square
F Value
Pr > F
hclimit
2
0. 4248203
0.2124102
1.52
0.2177
Source
DF
Type II SS
Mean Square
F Value
Pr > F
tran type
1
103.3727402
103.3727402
742.12
<.0001
model yr
23
72.7971250
3.1650924
22.72
<.0001
zippy
1
29.4060580
29.4060580
211.11
<.0001
colimit
6
29.3001913
4.8833652
35. 06
<.0001
fi type
2
29.1228258
14.5614129
104.54
<.0001
fedcat
5
22.9087025
4.5817405
32. 89
<.0001
repairs
1
21.0842509
21.0842509
151.36
<.0001
cat type
3
15.1514587
5.0504862
36.26
<.0001
aspirated
1
14.3331073
14.3331073
102.90
<.0001
hchigh
1
13.6677927
13.6677927
CO
1—1
K)
<.0001
testwght
1
11.1026212
11.1026212
79.71
<.0001
cohigh
1
6.0047667
6.0047667
43.11
<.0001
odometer
1
4.5355171
4.5355171
32.56
<.0001
disp
1
4.2968272
4.2968272
CO
o
CO
cn
<.0001
hclimit
2
0.4248203
0.2124102
1.52
0.2177
Parameter
Intercept
tran_type AUTO
tran_type MANUAL
model_yr 1974
Estimate
-1.673625489 B
0.158274281 B
0.000000000 B
0.696541075 B
Standard
Error
0.17013168
0.00580997
0.27202826
/camwheels/cam/epaco2ch4/vclco2gas.sas
t Value
-9.84
27.24
2.56
Pr > |t|
<.0001
<.0001
0. 0105
Al-19
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 20
13:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: resid
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
model yr
1975
0.002248802 B
0.12265689
0. 02
0.9854
model yr
1976
0.926217931 B
0.11148152
8.31
<.0001
model yr
1977
0.361546739 B
0.09558237
3.78
0.0002
model yr
1978
0.389481189 B
0.09518323
4. 09
<.0001
model yr
1979
0.232719441 B
0.09216055
2.53
0.0116
model yr
1980
0.132549190 B
0.05157858
2.57
0. 0102
model yr
1981
0.072549058 B
0.04809217
1.51
0.1314
model yr
1982
0.098854125 B
0.04914574
2. 01
0.0443
model yr
1983
0.079790007 B
0.04782476
1. 67
0.0952
model yr
1984
0.087826780 B
0.04785511
1. 84
0.0665
model yr
1985
0.051866558 B
0.04770749
1. 09
0.2770
model yr
1986
-0.022665077 B
0.04761208
CO
o
1
0.6341
model yr
1987
-0.046773268 B
0.04751291
1
o
CO
0.3249
model yr
1988
-0.030294526 B
0.04737111
o
1
0.5225
model yr
1989
-0.020789652 B
0.04746208
o
1
0.6614
model yr
1990
-0.017480820 B
0.04745581
-0.37
0.7126
model yr
1991
0.006318639 B
0.04828687
0.13
0.8959
model yr
1992
0.023684908 B
0.04894027
0. 48
0.6284
model yr
1993
-0.016196475 B
0.05288378
-0.31
0.7594
model yr
1994
-0.081123964 B
0.05265540
-1.54
0.1234
model yr
1995
-0.082624678 B
0.05605913
-1. 47
0.1405
model yr
1996
-0.017845240 B
0.05473779
1
o
CO
CO
0.7444
model yr
1997
-0.015438912 B
0.05493751
1
o
K)
CO
0.7787
model yr
1998
0.000000000 B
zippy
1. 008093262
0.06938237
14.53
<.0001
colimit
3.2
0.403980412 B
0.18147921
2.23
0.0260
colimit
3.4
0.321523622 B
0.15599836
2.06
0.0393
colimit
4.4
0.397842716 B
0.15648185
2.54
0.0110
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-20
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 21
13:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: resid
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
colimit
5
-1.837861425 B
0
21546219
-8.53
<.0001
colimit
6.7
0.771528689 B
0
16714955
4. 62
<.0001
colimit
7
0.277006125 B
0
15603212
1.78
0. 0759
colimit
10
0.238292465 B
0
13770221
1.73
0. 0836
colimit
14. 4
-0.802952873 B
0
22930944
-3.50
0. 0005
colimit
15
0.035208421 B
0
12794988
0.28
0.7832
colimit
18
0.088376858 B
0
13594067
0. 65
0.5156
colimit
20
0.000000000 B
colimit
39
0.000000000 B
fi type
NOTFI
-0.005923964 B
0
00768207
-0.77
0.4406
fi type
PFI
0.080348439 B
0
00582664
13. 79
<.0001
fi type
TBI
0.000000000 B
fedcat
Fed HDV
1.482930244 B
0
16779453
8. 84
<.0001
fedcat
Fed LDT1
-0.113646770 B
0
06372383
-1.78
0.0745
fedcat
Fed LDT2
-0.167437766 B
0
09454214
-1.77
0.0766
fedcat
Fed LDT3
0.007127316 B
0
06712761
0.11
0.9154
fedcat
Fed LDT4
2.155953105 B
0
20297475
10. 62
<.0001
fedcat
Fed LDV
0.000000000 B
repairs
A
0.070293179 B
0
00571348
12.30
<.0001
repairs
B
0.000000000 B
cat type
3WAY
-0.011639065 B
0
01260227
-0. 92
0.3557
cat type
NONE
0.032461737 B
0
04252410
0.76
0.4452
cat type
OX3W
0.047502158 B
0
01222503
3.89
0.0001
cat type
OXID
0.000000000 B
aspirated
CHARGED
0.130695644 B
0
01288421
10.14
<.0001
aspirated NATURAL
0.000000000 B
hchigh
0
0.066413069 B
0
00670457
9. 91
<.0001
hchigh
1
0.000000000 B
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-21
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 22
13:48 Friday, December 7, 2001
Dependent Variable: resid
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
testwght
0. 000163559
0
00001832
8
93
<.0001
cohigh
0
0.045787737 B
0
00697377
6
57
<.0001
cohigh
1
0.000000000 B
odometer
0.000000390
0
00000007
5
71
<.0001
disp
-0.110398650
0
01987726
-5
55
<.0001
hclimit
0.25
-0.144663245 B
0
10748049
-1
35
0.1783
hclimit
0. 41
-0.008846806 B
0
09355629
-0
09
0.9247
hclimit
CO
o
0.000000000 B
hclimit
1—1
1—1
CO
0.000000000 B
hclimit
1.5
0.000000000 B
hclimit
1.7
0.000000000 B
hclimit
2
0.000000000 B
hclimit
3.4
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2gas.sas
A1-22
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 23
13:48 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
32318
0
4. 9218299
3.3042932
3.2000000
39.0000000
hclimit
32318
0
0.5052429
0.2826946
0.2500000
3.4000000
disp
32318
0
2. 8585980
1.1409980
0.9996722
7.5385120
testwght
32318
0
3246.30
604.0523019
2000.00
8800.00
road hp
32318
0
8.4439105
2.3786593
3.2000000
23.4000000
odometer
32318
0
62644.36
34105.62
294.0000000
241829.00
Pi
32318
0
0.3682141
0.0681702
0
0.5083333
p2
32318
0
0.0335122
0.0255793
0
0.2081967
p3
32318
0
0.000312901
0.0030096
0
0. 0415973
p4
32318
0
0.000091992
0.0010503
0
0.0149750
avgtotpower
32318
0
6.3112664
3.0668349
0.2568667
54.2476938
temp
32318
0
75.3698372
1.7492411
68.0000000
85.0000000
rvp
32318
0
8.9743239
0.0789929
8.7000000
9.2000000
mpg
32312
6
22. 0484225
6.3763612
2.2700000
99.9900000
co2
32318
0
425.4643034
196.9575800
49.7000000
3888.40
gco2
32317
1
1382.28
668.1864847
58.1655667
13963.35
gco2 s
32318
0
2. 4393212
0.8672019
0.1615710
27.7050643
ch4
20103
12215
0.1046328
0.2119948
-1.5300000
8.7500000
gch4
20102
12216
0.3282431
0.4738435
-5.9049075
19.1427067
mgch4 s
20103
12215
0.5445544
0.7742734
-6.8541176
26.5515278
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-23
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 24
13:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
32318
100.00
32318
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
97
0.30
97
0.30
Fed LDT1
2140
6. 62
2237
6. 92
Fed LDT2
249
0.77
2486
7. 69
Fed LDT3
317
o
CO
2803
8. 67
Fed LDT4
13
o
o
2816
8.71
Fed LDV
29502
91.29
32318
100.00
/camwheels/cam/epaco2ch4/vclco2gas. sas
A1-24
-------
les,
l_yr
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 25
13:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
Frequency Percent Frequency Percent
3
o
o
1—1
3
o
o
1—1
24
0. 07
27
0. 08
38
0.12
65
0.20
368
1.14
433
1.34
427
1.32
860
2. 66
605
1. 87
1465
4.53
765
2.37
2230
6. 90
3999
12.37
6229
19.27
1354
4.19
7583
23. 46
1985
6.14
9568
29. 61
2163
6.69
11731
36. 30
2630
8.14
14361
44. 44
3022
9. 35
17383
53. 79
3239
1—1
o
o
K)
20622
63. 81
3656
11.31
24278
75.12
2620
8.11
26898
83.23
2409
7. 45
29307
90. 68
986
3. 05
30293
93. 73
674
2. 09
30967
95. 82
236
0.73
31203
96. 55
257
0. 80
31460
97.35
192
0.59
31652
97. 94
276
0. 85
31928
98.79
326
1. 01
32254
99. 80
64
0.20
32318
100.00
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-25
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 26
13:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
NOTFI
10484
CO
K)
10484
32. 44
PFI
12869
CO
CO
K)
23353
72.26
TBI
8965
27.74
32318
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
18754
Cn
CO
o
CO
18754
Cn
CO
o
CO
NONE
90
0.28
18844
58.31
OX3W
9903
30. 64
28747
CO
CO
Cn
OXID
3571
11. 05
32318
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
2
22
0. 07
22
0. 07
3
62
0.19
84
0.26
4
17799
55. 07
17883
55.33
5
59
0.18
17942
55.52
6
9989
CO
o
1—1
27931
86. 43
8
4387
13. 57
32318
100.00
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-26
-------
. cycles,
25C, AC off, not
High Altitude, 9 RVP, Non-Oxy Gasoline
13:48 Friday,
The
FREQ Procedure
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
CHARGED
977
3. 02
977
3. 02
NATURAL
31341
96. 98
32318
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
AUTO
24574
76.04
24574
76.04
MANUAL
7744
23. 96
32318
100.00
Cumulative
Cumulative
repairs
Frequency
Percent
Frequency
Percent
A
5714
17. 68
5714
17. 68
B
26604
82.32
32318
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
27
25154
7164
77. 83
22.17
25154
32318
77. 83
100.00
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-27
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 28
13:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
0 23564 72.91 23564 72.91
1 8754 27.09 32318 100.00
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-28
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 29
13:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
40 MPH
1
0.
. 00
1
0.
. 00
ART-EF
38
0.
. 12
39
0.
. 12
CAART1
51
0.
.16
90
0.
.28
CAART2
52
0.
.16
142
0.
. 44
CAART3
53
0.
.16
195
0.
. 60
CACYC1
50
0.
. 15
245
0.
.76
CACYC2
51
0.
.16
296
0.
. 92
CACYC3
50
0.
. 15
346
1.
. 07
CACYC4
53
0.
.16
399
1.
.23
CACYC5
54
0.
. 17
453
1.
. 40
CACYC6
52
0.
.16
505
1.
.56
CACYC7
52
0.
.16
557
1.
. 72
CDH22 6
93
0.
.29
650
2.
. 01
F505
105
0.
. 32
755
2.
. 34
FTP bnl
7625
23.
. 59
8380
25.
. 93
FTP bn2
7624
23.
. 59
16004
49.
. 52
FTP bn3
7623
23.
. 59
23627
73.
. 11
FWY-AC
17
0.
. 05
23644
73.
.16
FWY-D
3
0.
. 01
23647
73.
. 17
FWY-F
38
0.
. 12
23685
73.
.29
FWY-G
3
0.
. 01
23688
73.
. 30
FWY-HI
38
0.
. 12
23726
73.
. 41
HWFET
57
0.
. 18
23783
73.
. 59
IM240
3783
11.
. 71
27566
85.
. 30
LA92
38
0.
. 12
27604
85.
. 41
LSP1
521
1.
. 61
28125
87.
. 03
LSP2
523
1.
. 62
28648
88.
. 64
LSP3
523
1.
. 62
29171
90.
.26
NYCC
92
0.
.28
29263
90.
. 55
RAMP
3
0.
. 01
29266
90.
.56
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-29
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 30
13:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
SCC12
1356
4.20
30622
94.75
SCC36
1356
4.20
31978
98. 95
ST01
86
0.27
32064
99.21
UNCFTP
103
0.32
32167
99. 53
USO 6
151
0. 47
32318
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
31923
98.78
31923
98.78
R
65
0.20
31988
98. 98
S
330
1. 02
32318
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
16989
52.57
16989
52.57
GE60
7671
23. 74
24660
76. 30
LT60
7658
23. 70
32318
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0
32318
100.00
32318
100.00
/camwheels/cam/epaco2ch4/vclco2gas. sas
Al-30
-------
All cycles, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 31
13:48 Friday, December 7, 2001
The FREQ Procedure
tempcat
25
Frequency
32318
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
32318
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
3948
28370
12.22
87.78
3948
32318
12.22
100.00
rvpind
9
Frequency
32318
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
32318
100.00
oxygenate
None
Frequency
32318
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
32318
100.00
oxyind
R
Frequency
32318
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
32318
100.00
/camwheels/cam/epaco2ch4/vclco2gas.sas
Al-31
-------
Appendix A2
Dependence of gC02/s for Gasoline Vehicles on Operating Conditions
-------
C02 Operating Conditions
The GLM Procedure
Class Level Information
23:48 Monday, December 3, 2001
Class
msid cause
Levels Values
5031 0B65F12 6140_2853
0E91A17 6374_2241
0 F 0 3A2 40421_3015
0G87D14 68 65_2853
0H87F141911_3016
0P24FA4350011_22
0T12A121154 2825
0B65F13137 6_2508
0E91A17 6374_2342
0F03B153582_2829
0H87B15 6058_2827
0K32B621588_2828
0 P2 4 FA4 350011_2 3
0T20A603122 2242
0B65F13137 6
0E92A202073~
0F14B604695~
0H87D142470~
0K36B613242"
0T10A140625~
0T20A603122~
2511
282 6
2829
2824
"2823
2240
2344
0B76G106479
0F02A214965"
0F40A135116"
0H87F137227"
0K36B613242"
0T10A140625"
0W82C113475"
2507
2845
2508
2507
"3013
2341
"2240
0E91A117828
0F03A240421~
0F40A135116~
0H87F141911~
0K91A224584"
0T11A101910~
0W82C113475~
2825
2830
2511
2845
"2824
2828
2341
YV1AX8841E197930 YV1AX8848F111957 YV1AX8855F161975 YV1AX8859F164042 YV1DX6949D102871
YV1DX8740F212838 YV1DX8741F218149 YV1FX8756H111331 YV1JS8835N105424 YV1LS5500R216469
/camwheels/cam/epaco2ch4/oplco2.sas
A2-1
-------
C02 Operating Conditions
23:48 Monday, December 3, 2001 28
The GLM Procedure
sched_id
aeon
oxyind
altcat
soakcat
Number of observations 58738
/camwheels/cam/epaco2ch4/oplco2.sas
ZFAA500B8B818238 ZFAPP31X7JB19259 ZL24A9D364300_94 ZL24AAD232351_25 ZL44A8DZ66206_22
ZL44A8DZ6620 6_23 ZL44A9D192228_94 ZL44A9D192228_97 ZL44A9D321918_22 ZL44A9D321918_23
ZL44AAD17017 6_25
39 ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5 CACYC6 CACYC7
CDH226 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G FWY-HI HWFET IM240
IM240_bnl IM240_bn2 LA92 LSP1 LSP2 LSP3 NYCC RAMP SC03 SCC12 SCC36 ST01 UNCFTP US06
2 0 1
2 OR
2 H L
3 GE60 LT60 None
A2-2
-------
C02 Operating Conditions 23:48 Monday, December 3, 2001 29
The GLM Procedure
Dependent Variable: gco2_s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
5076
61549.97261
12.12568
47.54
<.0001
Error
53661
13686.11149
0.25505
Corrected Total
58737
75236.08410
R-Square
Coeff Var Root
MSE gco2 s
Mean
0.818091
19.
68044 0.505022 2.566114
Source
DF
Type I SS
Mean Square
F Value
Pr > F
msid cause
5030
36944.80049
7.34489
28. 80
<.0001
avgtotpower
1
22643.66205
22643.66205
88782.1
<.0001
sched id
38
1945.48286
51.19692
200.73
<.0001
soakcat
2
5.94478
2.97239
11. 65
<.0001
aeon
1
5.38682
5.38682
21.12
<.0001
rvp
1
2.40364
2.40364
9. 42
0. 0021
oxyind
1
1.96509
1.96509
7.70
0. 0055
temp
1
0.29450
0.29450
1.15
0.2826
altcat
1
0.03239
0. 03239
0.13
0.7216
Source
DF
Type II SS
Mean Square
F Value
Pr > F
msid cause
5030
8020.302630
1.594494
6.25
<.0001
avgtotpower
1
1782.884509
1782.884509
6990.40
<.0001
sched id
38
770.846729
20.285440
79.54
<.0001
soakcat
2
5.776119
2.888060
11.32
<.0001
aeon
1
4.389601
4.389601
17.21
<.0001
rvp
1
3.015602
3. 015602
11. 82
0. 0006
A2-3
-------
oxyind
temp
altcat
1 1.964135 1.964135 7.70 0.0055
1 0.291176 0.291176 1.14 0.2853
1 0.032386 0.032386 0.13 0.7216
/camwheels/cam/epaco2ch4/oplco2.sas
A2-4
-------
C02 Operating Conditions
The GLM Procedure
23:48 Monday, December 3, 2001 30
Dependent Variable: gco2_s
Parameter
Intercept
msid_cause
msid_cause
msid cause
0B65F12 6140_2853
0B65F13137 6_2508
0B65F131376 2511
Estimate
1.489791471
0.825374719
0.502669079
0.410759608
Standard
Error
0.31213463
0. 41239100
0. 41239053
0. 41239035
t Value
4.77
2. 00
1.22
1. 00
Pr > |t|
0001
0454
2229
3192
msid_cause
msid_cause
msid_cause
msid cause
ZL44A9D192228_97
ZL44A9D321918_22
ZL44A9D321918_23
ZL44AAD170176 25
-0. 085297537
-0.528859600
-0.410029262
0.000000000
0.41235280
0. 41234918
0.41235894
-0.21
-1.28
-0. 99
0.8361
0.1997
0.3201
/camwheels/cam/epaco2ch4/oplco2.sas
A2-5
-------
Dependent Variable: gco2_s
Parameter
avgtotpower
sched
id
ART-CD
sched
id
ART-EF
sched
id
CAART1
sched
id
CAART2
sched
id
CAART3
sched
id
CACYC1
sched
id
CACYC2
sched
id
CACYC3
sched
id
CACYC4
sched
id
CACYC5
sched
id
CACYC6
sched
id
CACYC7
sched
id
CDH22 6
sched
id
F505
sched
id
FTP bnl
sched
id
FTP bn2
sched
id
FTP bn3
sched
id
FWY-AC
sched
id
FWY-D
sched
id
FWY-E
sched
id
FWY-F
sched
id
FWY-G
sched
id
FWY-HI
sched
id
HWFET
sched
id
IM240
sched
id
IM240 bnl
sched
id
IM240 bn2
sched
id
LA92
sched
id
LSP1
sched
id
LSP2
sched
id
LSP3
sched
id
NYCC
Operating Conditions 23:48 Monday, December 3, 2001 166
The GLM Procedure
Estimate
Standard
Error
t Value
Pr > |t|
0.181880958
0.505665816
0.399046074
0.626852902
0.642316363
1.701431426
0.104572472
1.140377927
0.168311348
0.169565438
0.777534094
0.224445680
0.329498635
0.318912992
0.287140626
0.019714053
0.143161058
0.037035607
0.312144325
1.300987461
0.792016209
0.378834339
0.443742393
0.826561199
0.241353616
0.118617697
0.185677420
0.068139235
0.272922566
0.653688812
0.363669678
0.156217844
0.373714184
0.00217539
0.09212376
0.08654032
0.09261182
0.08914656
0.08688175
0.08343693
0. 08405212
0.08695921
0.08806223
0. 08902119
0.09299619
0.09529460
0.07802654
0.06135567
0.07984880
0. 05873092
0. 07262527
0. 08720598
0.06766537
0.08802748
0.07284711
0. 08974106
0.05832734
0.08466603
0.05032916
0.05590589
0.04693871
0.06719115
0.06847959
0.06790349
0.06764367
0. 07590808
83. 61
-5. 49
-4. 61
-6.11
-7.21
19.58
1.25
13. 57
-1. 94
-1. 93
-8.73
-2. 41
-3.46
-4. 09
-4. 68
0.25
-2. 44
0.51
-3.58
-19.23
-9.00
-5.20
-4. 94
-14.17
2. 85
-2.36
-3. 32
-1. 45
-4.06
-9. 55
-5.36
2.31
-4. 92
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
0.2101
<.0001
0. 0529
0.0542
<.0001
0.0158
0. 0005
<.0001
<.0001
0. 8050
0.0148
0.6101
0.0003
<.0001
<.0001
<.0001
<.0001
<.0001
0.0044
0. 0184
0.0009
0.1466
<.0001
<.0001
<.0001
0. 0209
<.0001
A2-6
-------
sched_id RAMP -0.655840156 B 0.09877837 -6.64 <.0001
sched_id SC03 0.207220506 B 0.15822244 1.31 0.1903
sched_id SCC12 -0.280069429 B 0.06168673 -4.54 <.0001
sched_id SCC36 0.011939771 B 0.05147059 0.23 0.8166
/camwheels/cam/epaco2ch4/oplco2.sas
A2-7
-------
C02 Operating Conditions
The GLM Procedure
23:48 Monday, December 3, 2001 167
Dependent Variable: gco2_s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched_id
sched_id
sched_id
soakcat
soakcat
soakcat
aeon
aeon
rvp
oxyind
oxyind
temp
altcat
altcat
ST01
UNCFTP
USO 6
GE60
LT60
None
0
1
O
R
H
L
-0.113083995
0.015663986
0.000000000
0.204749960
-0.141677824
0.000000000
-0.184383073
0.000000000
-0.011054615
-0. 021045776
0.000000000
0.000914402
-0.137491230
0. 000000000
07245573
07564348
05994159
05009478
04444462
00321490
00758385
00085580
38584163
-1.56
0.21
3. 42
-2. 83
-4.15
-3.44
-2.78
1. 07
-0.36
1186
8360
0006
0047
0001
0006
0055
2853
7216
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the normal
equations. Terms whose estimates are followed by the letter 'B' are not uniquely estimable.
/camwheels/cam/epaco2ch4/oplco2.sas
A2-8
-------
C02 Operating Conditions 14:26 Friday, December 7, 2001 1
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
57123
1615
4.8271957
3.1766307
3.2000000
39.0000000
hclimit
56995
1743
0.4968234
0.2621842
0.2500000
3.4000000
disp
58738
0
2.9248398
1.2258145
0.9996722
8.3906916
testwght
58738
0
3341.70
897.1048427
84.0000000
11050.00
road hp
58738
0
8.7658415
3.1363211
3.2000000
32.5000000
odometer
58609
129
62655.83
34306.34
47.0000000
241829.00
Pi
58738
0
0.3875905
0.0783309
0
0.5425532
p2
58738
0
0.0354313
0.0271704
0
0.2081967
p3
58738
0
0.000351271
0.0031997
0
0. 0415973
p4
58738
0
0.000105490
0. 0011056
0
0.0149750
avgtotpower
58738
0
6.9589524
4.2476703
0.2568667
76.6929135
temp
58738
0
75.9334553
4.4091236
0
116.0000000
rvp
58738
0
9.1534679
0.9405203
6.3000000
12.2000000
mpg
58726
12
22.4226858
6.2065025
0.8857765
99.9900000
co2
58735
3
413.7172850
175.8834682
14.8000000
3888.40
gco2
58738
0
1281.52
825.2221705
54.1380750
38594.16
gco2 s
58738
0
2.5661140
1.1317675
0.0658816
71.2505440
ch4
34479
24259
0.0981881
0.1777150
-1.5300000
8.7500000
gch4
34479
24259
0.3297668
0.4659128
-5.9049075
19.1427067
mgch4 s
34479
24259
0.5560020
0.7591667
-6.8541176
26.5515278
/camwheels/cam/epaco2ch4/oplco2.sas
A2-9
-------
C02 Operating Conditions 14:26 Friday, December 7, 2001 2
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
58738
100.00
58738
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
155
0.26
155
0.26
Fed HDV
1575
2. 68
1730
2. 95
Fed LDT1
4698
8. 00
6428
10. 94
Fed LDT2
337
0.57
6765
11.52
Fed LDT3
624
1.06
7389
12.58
Fed LDT4
13
0. 02
7402
12. 60
Fed LDV
51336
87. 40
58738
100.00
/camwheels/cam/epaco2ch4/oplco2.sas
A2-10
-------
l_yr
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
C02 Operating Conditions 14:26 Friday, December 7, 2001 3
The FREQ Procedure
Cumulative Cumulative
Frequency Percent Frequency Percent
18
o
o
CO
18
o
o
CO
33
0.06
51
0. 09
57
0.10
108
0.18
472
0. 80
580
0. 99
515
0. 88
1095
1.86
791
1.35
1886
3.21
1047
1.78
2933
4. 99
5703
9.71
8636
14.70
2195
3.74
10831
18. 44
3836
6. 53
14667
24. 97
3980
6.78
18647
31.75
5234
8. 91
23881
40. 66
6488
11. 05
30369
51.70
6271
10. 68
36640
62.38
6378
10. 86
43018
73.24
5015
8.54
48033
81.78
4077
6. 94
52110
88.72
2195
3.74
54305
92. 45
1088
1. 85
55393
94.31
840
1. 43
56233
95.74
4 62
0.79
56695
96. 52
609
1. 04
57304
97.56
508
0.86
57812
98. 42
648
1.10
58460
99. 53
242
0. 41
58702
99.94
36
0.06
58738
100.00
/camwheels/cam/epaco2ch4/oplco2.sas
A2-11
-------
C02 Operating Conditions 14:26 Friday, December 7, 2001 4
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
480
o
CO
K)
480
o
CO
K)
NOTFI
16161
27.51
16641
28.33
PFI
25032
42. 62
41673
70. 95
TBI
17065
29. 05
58738
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
72
0.12
72
0.12
3WAY
35060
59. 69
35132
59.81
NONE
108
0.18
35240
o
o
o
OX3W
17859
CO
o
O
53099
O
O
OXID
5639
9. 60
58738
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
2
38
0.06
38
0.06
3
117
0.20
155
0.26
4
31742
o
LO
31897
54.30
5
110
0.19
32007
54. 49
6
17699
30.13
49706
84. 62
8
8912
15.17
58618
99. 80
10
120
0.20
58738
100.00
/camwheels/cam/epaco2ch4/oplco2.sas
A2-12
-------
C02 Operating Conditions 14:26 Friday, December 7, 2001 5
The FREQ Procedure
Cumulative Cumulative
aspirated Frequency Percent Frequency Percent
85 0.14 85 0.14
CHARGED 1991 3.39 2076 3.53
NATURAL 56662 96.47 58738 100.00
Cumulative Cumulative
tran_type Frequency Percent Frequency Percent
72 0.12 72 0.12
AUTO 43832 74.62 43904 74.75
MANUAL 14834 25.25 58738 100.00
Cumulative Cumulative
repairs Frequency Percent Frequency Percent
A
7730
13.16
7730
13.16
B
11155
1—1
CO
18885
32.15
S
39853
67. 85
58738
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
162 6
2.77
162 6
2.77
0
43926
74.78
45552
77.55
1
13186
22. 45
58738
100.00
/camwheels/cam/epaco2ch4/oplco2.sas
A2-13
-------
C02 Operating Conditions 14:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
1754 2.99 1754 2.99
0 41428 70.53 43182 73.52
1 15556 26.48 58738 100.00
/camwheels/cam/epaco2ch4/oplco2.sas
A2-14
-------
C02 Operating Conditions 14:26 Friday, December 7, 2001 7
The
FREQ Procedure
Cumulative
Cumulati1
sched id
Frequency
Percent
Frequency
Percenl
ART-CD
49
0. 08
49
0. 08
ART-EF
65
0.11
114
0.19
CAART1
51
0. 09
165
0.28
CAART2
52
0. 09
217
0.37
CAART3
53
0. 09
270
0.46
CACYC1
50
0. 09
320
0.54
CACYC2
51
0. 09
371
0. 63
CACYC3
50
0. 09
421
0.72
CACYC4
53
0. 09
474
0. 81
CACYC5
54
0. 09
528
0. 90
CACYC6
52
0. 09
580
0. 99
CACYC7
52
0. 09
632
1. 08
CDH22 6
93
0.16
725
1.23
F505
453
0.77
1178
2. 01
FTP bnl
12940
22. 03
14118
24. 04
FTP bn2
12940
22. 03
27058
46. 07
FTP bn3
12940
22. 03
39998
68.10
FWY-AC
43
0. 07
40041
68.17
FWY-D
76
0.13
40117
68.30
FWY-E
46
0. 08
40163
68.38
FWY-F
112
0.19
40275
68.57
FWY-G
76
0.13
40351
68.70
FWY-HI
128
0.22
40479
68. 91
HWFET
57
0.10
40536
69. 01
IM240
4375
7. 45
44911
76.46
IM240 bnl
4300
7.32
49211
83. 78
IM240 bn2
4300
7.32
53511
91.10
LA92
113
0.19
53624
91.29
LSP1
521
0. 89
54145
92.18
LSP2
523
0. 89
54668
93. 07
LSP3
523
0. 89
55191
93. 96
/camwheels/cam/epaco2ch4/oplco2.sas
A2-15
-------
C02 Operating Conditions 14:26 Friday, December 7, 2001 8
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
NYCC
182
0.31
55373
94.27
RAMP
30
0. 05
55403
94.32
SC03
14
0. 02
55417
94.35
SCC12
1358
2.31
56775
96. 66
SCC36
1358
2.31
58133
98. 97
ST01
202
0.34
58335
99. 31
UNCFTP
103
0.18
58438
99.49
USO 6
300
0.51
58738
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
58035
CO
CO
O
58035
CO
CO
O
R
199
0.34
58234
99.14
S
504
0.86
58738
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
GE60
13065
22.24
13065
22.24
LT60
13162
22. 41
26227
44. 65
None
32511
55.35
58738
100.00
/camwheels/cam/epaco2ch4/oplco2.sas
A2-16
-------
C02 Operating Conditions 14:26 Friday, December 7, 2001 9
The FREQ Procedure
Cumulative Cumulative
aeon Frequency Percent Frequency Percent
0
58523
99. 63
58523
99. 63
1
215
0.37
58738
100.00
Cumulative
Cumulative
tempcat
Frequency
Percent
Frequency
Percent
-15
10
0. 02
10
0. 02
-5
25
0. 04
35
0.06
5
7
0. 01
42
0. 07
15
70
0.12
112
0.19
25
57169
97.33
57281
97.52
35
1037
1.77
58318
99.28
45
420
0.72
58738
100.00
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
H
2
0. 00
2
0. 00
L
58736
100.00
58738
100.00
/camwheels/cam/epaco2ch4/oplco2.sas
A2-17
-------
C02 Operating Conditions 14:26 Friday, December 7, 2001 10
The FREQ Procedure
rvpind Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
156
0.27
156
0.27
7
1410
2. 40
1566
2. 67
8
3021
5.14
4587
7. 81
9
47650
CO
1—1
1—1
K)
52237
CO
CO
CO
10
24
o
o
52261
88. 97
11
1065
i—1
CO
1—1
53326
90.79
12
5412
9.21
58738
100.00
oxygenate
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
EtOH
MTBE
MeOH_EtOH
MeOH_TBA
None
234
3171
5403
69
6
49855
0. 40
5. 40
9.20
0.12
0. 01
84. 88
234
3405
8808
8877
8883
58738
0. 40
5. 80
15. 00
15.11
15.12
100.00
oxyind Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
O
R
8883
49855
15.12
84. 88
8883
58738
15.12
100.00
/camwheels/cam/epaco2ch4/oplco2.sas
A2-18
-------
Appendix A3
Dependence of gC02/s for Gasoline Vehicles on Special Conditions
-------
Class
msid cause
C02 Altitude with Powerl Not Sched_ID
The GLM Procedure
Class Level Information
Levels Values
15:17 Tuesday, December 4, 2001
4500 0B65F12 6140_2853 0B65F131376_2508 0B65F131376_2511 0B7 6G106479_2507 0E35A612780_2188
0E91A117828_2825 0E91A176374_2241 0E91A176374_2342 0E92A202073_2826 0F02A214965_2845
0F03A240421_2830 0F03A240421_3015 0F03B153582_2829 0F04D103968_2188 0F04D103968_2265
0F14B604695 2829 0F40A135116 2508 0F40A135116 2511 0G87D146865 2853 0G87F163804 2188
YV1AX474XE203625 YV1AX4925B119411 YV1AX8841E197930 YV1AX8848F111957 YV1AX8855F161975
YV1AX8859F164042 YV1DX6949D102871 YV1DX8740F212838 YV1DX8741F218149 YV1FX8756H111331
YV1JS8835N105424 YV1LS5500R216469 ZFAA500B8B818238 ZFAPP31X7JB19259 ZL24A9D334662_21
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-1
-------
C02 Altitude with Powerl Not Sched_ID 27
15:17 Tuesday, December 4, 2001
The GLM Procedure
sched_id
aeon
oxyind
altcat
soakcat
fedcat
Number of observations 59774
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
ZL24A9D364300_94 ZL24AAD232351_25 ZL24AAD254930_21 ZL44A8DZ66206_22 ZL44A8DZ66206_23
ZL44A9D192228_94 ZL44A9D192228_97 ZL44A9D321918_22 ZL44A9D321918_23 ZL44AAD170176_25
45 40_MPH ART-AB ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5
CACYC6 CACYC7 CDH226 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G
FWY-HI HWFET IM240 IM240_bnl IM240_bn2 LA4 LA4_bnl LA4_bn2 LA92 LOCAL LSP1 LSP2 LSP3
NYCC RAMP SC03 SCC12 SCC36 ST01 UNCFTP US06
2 0 1
2 OR
2 H L
3 GE60 LT60 None
1 Fed LDV
A2-2
-------
C02 Altitude with Powerl Not Sched ID
28
15:17 Tuesday, December 4, 2001
The GLM Procedure
Dependent Variable: gco2_s
Source
DF
Sum of
Squares
Mean Square F Value
Pr > F
Model
4507
21063.55911
4.67352
11.27
<.0001
Error
55266
22915.68105
0.41464
Corrected Total
59773
43979.24016
R-Square
Coeff Var Root
MSE gco2 s
Mean
0. 478943
26.
16265 0.643928 2.461249
Source
DF
Type I SS
Mean Square
F Value
Pr > F
msid cause
4499
17224.43477
3.82850
9.23
<.0001
soakcat
2
2162.59582
1081.29791
2607.78
<.0001
powerl
1
1460.62346
1460.62346
3522.60
<.0001
oxyind
1
98.40653
98.40653
237.33
<.0001
aeon
1
55.51566
55.51566
133.89
<.0001
rvp
1
58.07233
58. 07233
140. 05
<.0001
altcat
1
1.99837
1.99837
4. 82
0. 0281
temp
1
1.91217
1.91217
4. 61
0.0318
fedcat
0.00000
Source
DF
Type II SS
Mean Square
F Value
Pr > F
msid_cause
soakcat
powerl
oxyind
aeon
4499
2
1
1
1
16801.59560
1784.61622
1494.69253
112.22849
57.39967
3.73452
892.30811
1494.69253
112.22849
57.39967
9.01
2151.99
3604.77
270.66
138.43
<.0001
<.0001
<.0001
<.0001
<.0001
A2-3
-------
rvp 1 59.25075 59.25075 142.90 <.0001
altcat 1 1.98669 1.98669 4.79 0.0286
temp 1 1.91217 1.91217 4.61 0.0318
fedcat 0 0.00000
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-4
-------
C02 Altitude with Powerl Not Sched ID
29
15:17 Tuesday, December 4, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
2.959395003 B
0.32869275
9.00
<.0001
msid cause
0B65F126140 2853
0.700283511 B
0.37178301
1. 88
0. 0596
;id cause ZL24A9D364300 94
-0.506322817 B
0.38696731
-1.31
0.1907
msid cause
ZL24AAD232351
25
-0.141477568 B
0.39432382
-0.36
0.7198
msid cause
ZL24AAD254930
21
0.411855497 B
0. 82093933
0.50
0.6159
msid cause
ZL44A8DZ6620 6
22
-1.066712249 B
0.49180980
-2.17
0.0301
msid cause
ZL44A8DZ6620 6
23
-0.649779865 B
0.41565513
-1.56
0.1180
msid cause
ZL44A9D192228
"94
-0.723090500 B
0.49181183
-1. 47
0.1415
msid cause
ZL44A9D192228
97
-0.570333933 B
0.49180980
-1.16
0.2462
msid cause
ZL44A9D321918
22
-0.971141200 B
0.49180933
-1. 97
0.0483
msid cause
ZL44A9D321918
23
-0.845995512 B
0.49181109
-1.72
0. 0854
/camwheels/cam/epaco2ch4/oplco2_Altitude. sas
A2-5
-------
C02 Altitude with Powerl Not Sched ID
154
15:17 Tuesday, December 4, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid cause
ZL44AAD170176 25
0.000000000 B
soakcat
GE60
0.480030339 B
0
00731730
o
LO
<.0001
soakcat
LT60
0.152184533 B
0
00734772
20.71
<.0001
soakcat
None
0.000000000 B
powerl
0.000087797
0
00000146
o
o
<.0001
oxyind
0
-0.159008984 B
0
00966512
LO
\—i
1
<.0001
oxyind
R
0.000000000 B
aeon
0
-0.466483085 B
0
03964775
-11.77
<.0001
aeon
1
0.000000000 B
rvp
-0. 050716533
0
00424268
1
1—1
1—1
Cn
<.0001
altcat
H
0.863526134 B
0
39450024
2.19
0. 0286
altcat
L
0.000000000 B
temp
-0.000807966
0
00037624
1
K)
1—1
Cn
0.0318
fedcat
Fed LDV
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the normal
equations. Terms whose estimates are followed by the letter 'B' are not uniquely estimable.
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-6
-------
C02 Altitude with Sched_ID not Power 1
The GLM Procedure
Class Level Information
155
15:17 Tuesday, December 4, 2001
Class
msid cause
Levels Values
4500 0B65F12 6140_2853 0B65F131376_2508 0B65F131376_2511
0E91A117828_2825 0E91A176374_2241 0E91A176374_2342
0F03A240421_2830 0F03A240421_3015 0F03B153582_2829
0F14B604 695_2829 0F40A135116_2508 0F40A135116_2511
0G87F163804 2265 0H87B156058 2827 0H87D142470 2824
0B7 6G10 6479_2507 0E35A612780_2188
0E92A202073 2826 0F02A214965 2845
0F04D103968_2188
0G87D14 68 65_2853
0H87F137227 2507
0F04D103968_22 65
0G87F163804_2188
0H87F141911 2845
YV1AX8859F164042 YV1DX6949D102871 YV1DX8740F212838 YV1DX8741F218149 YV1FX8756H111331
YV1JS8835N105424 YV1LS5500R216469 ZFAA500B8B818238 ZFAPP31X7JB19259 ZL24A9D334662_21
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-7
-------
C02 Altitude with Sched_ID not Power 1 177
15:17 Tuesday, December 4, 2001
The GLM Procedure
sched_id
aeon
oxyind
altcat
soakcat
fedcat
Number of observations 59774
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
ZL24A9D364300_94 ZL24AAD232351_25 ZL24AAD254930_21 ZL44A8DZ66206_22 ZL44A8DZ66206_23
ZL44A9D192228_94 ZL44A9D192228_97 ZL44A9D321918_22 ZL44A9D321918_23 ZL44AAD170176_25
45 40_MPH ART-AB ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5
CACYC6 CACYC7 CDH226 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G
FWY-HI HWFET IM240 IM240_bnl IM240_bn2 LA4 LA4_bnl LA4_bn2 LA92 LOCAL LSP1 LSP2 LSP3
NYCC RAMP SC03 SCC12 SCC36 ST01 UNCFTP US06
2 0 1
2 OR
2 H L
3 GE60 LT60 None
1 Fed LDV
A2-8
-------
C02 Altitude with Sched ID not Power 1
178
15:17 Tuesday, December 4, 2001
The GLM Procedure
Dependent Variable: gco2_s
Source
DF
Sum of
Squares
Mean Square F Value
Pr > F
Model
4550
39572.68616
8.69729
108.99
<.0001
Error
55223
4406.55399
0.07980
Corrected Total
59773
43979.24016
R-Square
Coeff Var Root
MSE gco2 s
Mean
0.899804
11.
,47715 0.282481 2.461249
Source
DF
Type I SS
Mean Square
F Value
Pr > F
sched id
44
24398.25580
554.50581
6949.08
<.0001
msid cause
4499
15108.77919
3.35825
42. 09
<.0001
aeon
1
55.11345
55.11345
690.68
<.0001
temp
1
8.78491
8.78491
110.09
<.0001
soakcat
2
0.44111
0.22055
2.76
0.0630
rvp
1
0.93599
0.93599
11.73
0. 0006
oxyind
1
0.35493
0.35493
4. 45
0.0349
altcat
1
0.02079
0. 02079
0.26
0.6097
fedcat
0
0.00000
Source
DF
Type II SS
Mean Square
F Value
Pr > F
sched id
44
20003.81958
454.63226
5697.46
<.0001
msid cause
4499
14939.14280
3. 32055
41. 61
<.0001
aeon
1
59.88997
59.88997
750.54
<.0001
temp
1
9. 0 6046
9. 0 6046
113.55
<.0001
soakcat
2
0. 43936
0.21968
2.75
0.0637
A2-9
-------
rvp 1 1.07699 1.07699 13.50 0.0002
oxyind 1 0.35461 0.35461 4.44 0.0350
altcat 1 0.02079 0.02079 0.26 0.6097
fedcat 0 0.00000
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-10
-------
C02 Altitude with Sched ID
Dependent Variable: gco2_s
Parameter
Intercept
sched
id
40 MPH
sched
id
ART-AB
sched
id
ART-CD
sched
id
ART-EF
sched
id
CAART1
sched
id
CAART2
sched
id
CAART3
sched
id
CACYC1
sched
id
CACYC2
sched
id
CACYC3
sched
id
CACYC4
sched
id
CACYC5
sched
id
CACYC6
sched
id
CACYC7
sched
id
CDH22 6
sched
id
F505
sched
id
FTP bnl
sched
id
FTP bn2
sched
id
FTP bn3
sched
id
FWY-AC
sched
id
FWY-D
sched
id
FWY-E
sched
id
FWY-F
sched
id
FWY-G
sched
id
FWY-HI
sched
id
HWFET
sched
id
IM240
sched
id
IM240 bnl
sched
id
IM240 bn2
sched
id
LA4
sched
id
LA4 bnl
The GLM Procedure
Estimate
5.306199585 B
2.422048347 B
2.255624534 B
2.521436384 B
2.898230925 B
3.071591186 B
2.550637943 B
0.153898310 B
0.115425614 B
0.542765056 B
1.376888707 B
1.980481960 B
2.874090218 B
2.819693697 B
3.291575583 B
2.596781283 B
2.248355073 B
2.070882596 B
2.865859873 B
2.167060303 B
0.212212980 B
0.821037453 B
2.050456820 B
2.543790542 B
3.015523356 B
0.051625480 B
1.150255876 B
1.899121179 B
2.547562949 B
1.463779950 B
2.681061600 B
2.228868944 B
A2-11
Power 1
179
15:17 Tuesday, December 4, 2001
Standard
Error
0.14751959
0.29470166
0.04642044
0.04602400
0.04418491
0.05143058
0.05113029
0.05082229
0. 05174581
0. 05143056
0.05143171
0.05082236
0.05052013
0.05111940
0.05113055
0.04794197
0.04271623
0.08601430
0.03091395
0.10186002
0.04329603
0.04642045
0.04642048
0.04418495
0.04642052
0.04358097
0.03128999
0.03111233
0.03111716
0.03111712
0.03425264
0.03453372
t Value
35. 97
-8.22
-48.59
-54.79
-65.59
-59.72
-49.89
3. 03
-2.23
10.55
-26.77
-38.97
-56.89
-55.16
-64.38
-54.17
-52.63
-24.08
-92.70
-21.27
-4. 90
-17.69
-44.17
-57.57
-64.96
1.18
-36.76
-61.04
-81.87
-47.04
-78.27
-64.54
Pr > |t|
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
0. 0025
0. 0257
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
0.2362
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
-------
sched_id
sched_id
sched_id
sched id
LA4_bn2
LA92
LOCAL
LSP1
-2.949067061 B
-2.037330183 B
-2.891494279 B
-4.016778706 B
0. 03453372
0.04409785
0.04642046
0.03252343
-85. 40
-46.20
-62.29
-123.50
<.0001
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-12
-------
C02 Altitude with Sched ID not Power 1
180
15:17 Tuesday, December 4, 2001
Dependent Variable: gco2_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
msid_cause
msid_cause
msid_cause
msid cause
LSP2
LSP3
NYCC
RAMP
SC03
SCC12
SCC36
ST01
UNCFTP
USO 6
0B65F12 6140_2853
0B65F13137 6_2508
0B65F13137 6_2511
0B76G106479 2507
-3.658422380
-3.091249350
-3.324929527
-1.317329251
-1.990067788
-3.135191613
-1.761510067
-2.351623014
-2.365910148
0.000000000
1.219682471
1.006524023
0.874861251
1.195103879
0.03251950
0.03251947
0.03179596
0.04642045
0.23130078
0.03199675
0.03199581
0.08080087
0. 04580849
0.16330564
0.19974439
0.19974437
0.19974444
-112.50
-95.06
-104.57
-28.38
-8. 60
-97.98
-55.05
-29.10
-51.65
7. 47
5. 04
4.38
5. 98
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
cause ZL44A9D192228 97
-0.241879394 B
0.21575334
1
1—1
1—1
K)
O
2623
msid cause
ZL44A9D321918
22 -0.641053065
0
21575316
-2. 97
0.0030
msid cause
ZL44A9D321918"
23 -0.512313464 E
0
21575406
-2.37
0. 0176
msid cause
ZL44AAD170176"
25 0.000000000 E
aeon
0
-0.480464198 E
0
01753774
-27.40
<.0001
aeon
1
0.000000000 E
temp
-0. 001788124
0
00016781
-10.66
<.0001
soakcat
GE60
0.187831320 E
0
08107240
2.32
0. 0205
soakcat
LT60
-0.045042143 E
0
09659495
-0. 47
0.6410
soakcat
None
0.000000000 E
rvp
-0.006942075
0
00188961
-3. 67
0. 0002
oxyind
0
-0.009154559 E
0
00434263
-2.11
0. 0350
oxyind
R
0.000000000 E
altcat
H
-0.088352061 E
0
17308075
1
o
en
I—1
0.6097
A2-13
-------
altcat L 0.000000000
fedcat Fed_LDV 0.000000000
NOTE: The X'X matrix has been found to be singular, and
equations. Terms whose estimates are followed by
B . .
B . .
a generalized inverse was used to solve the normal
the letter 'B' are not uniquely estimable.
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-14
-------
C02 Altitude with Both Sched_ID and Power 1
The GLM Procedure
Class Level Information
306
15:17 Tuesday, December 4, 2001
Class
msid cause
Levels Values
4500 0B65F12 6140_2853 0B65F131376_2508 0B65F131376_2511
0E91A117828_2825 0E91A176374_2241 0E91A176374_2342
0F03A240421_2830 0F03A240421_3015 0F03B153582_2829
0F14B604 695_2829 0F40A135116_2508 0F40A135116_2511
0G87F163804 2265 0H87B156058 2827 0H87D142470 2824
0B7 6G10 6479_2507 0E35A612780_2188
0E92A202073 2826 0F02A214965 2845
0F04D103968_2188
0G87D14 68 65_2853
0H87F137227 2507
0F04D103968_22 65
0G87F163804_2188
0H87F141911 2845
YV1AX474XE203625 YV1AX4925B119411 YV1AX8841E197930 YV1AX8848F111957 YV1AX8855F161975
YV1AX8859F164042 YV1DX6949D102871 YV1DX8740F212838 YV1DX8741F218149 YV1FX8756H111331
YV1JS8835N105424 YV1LS5500R216469 ZFAA500B8B818238 ZFAPP31X7JB19259 ZL24A9D334662_21
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-15
-------
C02 Altitude with Both Sched_ID and Power 1 328
15:17 Tuesday, December 4, 2001
The GLM Procedure
sched_id
aeon
oxyind
altcat
soakcat
fedcat
Number of observations 59774
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
ZL24A9D364300_94 ZL24AAD232351_25 ZL24AAD254930_21 ZL44A8DZ66206_22 ZL44A8DZ66206_23
ZL44A9D192228_94 ZL44A9D192228_97 ZL44A9D321918_22 ZL44A9D321918_23 ZL44AAD170176_25
45 40_MPH ART-AB ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5
CACYC6 CACYC7 CDH226 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G
FWY-HI HWFET IM240 IM240_bnl IM240_bn2 LA4 LA4_bnl LA4_bn2 LA92 LOCAL LSP1 LSP2 LSP3
NYCC RAMP SC03 SCC12 SCC36 ST01 UNCFTP US06
2 0 1
2 OR
2 H L
3 GE60 LT60 None
1 Fed LDV
A2-16
-------
C02 Altitude with Both Sched ID and Power 1
329
15:17 Tuesday, December 4, 2001
The GLM Procedure
Dependent Variable: gco2_s
Source
DF
Sum of
Squares
Mean Square F Value
Pr > F
Model
4550
39572.68616
8.69729
108.99
<.0001
Error
55223
4406.55399
0.07980
Corrected Total
59773
43979.24016
R-Square
Coeff Var Root
MSE gco2 s
Mean
0.899804
11.
,47715 0.282481 2.461249
Source
DF
Type I SS
Mean Square
F Value
Pr > F
sched id
44
24398.25580
554.50581
6949.08
<.0001
msid cause
4499
15108.77919
3.35825
42. 09
<.0001
aeon
1
55.11345
55.11345
690.68
<.0001
temp
1
8.78491
8.78491
110.09
<.0001
rvp
1
0.93761
0.93761
11.75
0. 0006
soakcat
2
0.43948
0.21974
2.75
0.0637
oxyind
1
0.35493
0.35493
4. 45
0.0349
altcat
1
0.02079
0. 02079
0.26
0.6097
powerl
0
0.00000
fedcat
0
0.00000
Source
DF
Type II SS
Mean Square
F Value
Pr > F
sched_id
msid_cause
aeon
temp
43
4499
1
1
18509.12706
14939.14280
59.88997
9. 0 6046
430.44482
3. 32055
59.88997
9.0 6046
5394.34
41. 61
750.54
113.55
<.0001
<.0001
<.0001
<.0001
A2-17
-------
rvp 1 1.07699 1.07699 13.50 0.0002
soakcat 2 0.43936 0.21968 2.75 0.0637
oxyind 1 0.35461 0.35461 4.44 0.0350
altcat 1 0.02079 0.02079 0.26 0.6097
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-18
-------
C02 Altitude with Both Sched ID and Power 1
330
15:17 Tuesday, December 4, 2001
The GLM Procedure
Variable:
gco2 s
Source
DF
Type II SS
Mean Square
F Value
Pr > F
powerl
0
0.00000
fedcat
0
0.00000
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
5.306199585 B
0.14751959
35. 97
<.0001
sched id
40 MPH
-2.422048347 B
0.29470166
-8.22
<.0001
sched id
ART-AB
-2.255624534 B
0.04642044
-48.59
<.0001
sched id
ART-CD
-2.521436384 B
0.04602400
-54.79
<.0001
sched id
ART-EF
-2.898230925 B
0.04418491
-65.59
<.0001
sched id
CAART1
-3.071591186 B
0.05143058
-59.72
<.0001
sched id
CAART2
-2.550637943 B
0.05113029
-49.89
<.0001
sched id
CAART3
0.153898310 B
0.05082229
3. 03
0. 0025
sched id
CACYC1
-0.115425614 B
0. 05174581
-2.23
0. 0257
sched id
CACYC2
0.542765056 B
0. 05143056
10.55
<.0001
sched id
CACYC3
-1.376888707 B
0.05143171
-26.77
<.0001
sched id
CACYC4
-1.980481960 B
0.05082236
-38.97
<.0001
sched id
CACYC5
-2.874090218 B
0.05052013
-56.89
<.0001
sched id
CACYC6
-2.819693697 B
0.05111940
-55.16
<.0001
sched id
CACYC7
-3.291575583 B
0.05113055
-64.38
<.0001
sched id
CDH22 6
-2.596781283 B
0.04794197
-54.17
<.0001
sched id
F505
-2.248355073 B
0.04271623
-52.63
<.0001
sched id
FTP bnl
-2.070882596 B
0.08601430
-24.08
<.0001
sched id
FTP bn2
-2.865859873 B
0.03091395
-92.70
<.0001
sched id
FTP bn3
-2.167060303 B
0.10186002
-21.27
<.0001
sched id
FWY-AC
-0.212212980 B
0.04329603
-4. 90
<.0001
sched id
FWY-D
-0.821037453 B
0.04642045
-17.69
<.0001
sched id
FWY-E
-2.050456820 B
0.04642048
-44.17
<.0001
sched id
FWY-F
-2.543790542 B
0.04418495
-57.57
<.0001
sched id
FWY-G
-3.015523356 B
0.04642052
-64.96
<.0001
sched id
FWY-HI
0.051625480 B
0.04358097
1.18
0.2362
A2-19
-------
sched_id
sched_id
sched_id
sched id
HWFET
IM240
IM240_bnl
IM240 bn2
-1.150255876 B
-1.899121179 B
-2.547562949 B
-1.463779950 B
0. 03128999
0. 03111233
0. 03111716
0.03111712
-36.76
-61.04
-81.87
-47.04
<.0001
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-20
-------
C02 Altitude with Both Sched_ID and Power 1 331
15:17 Tuesday, December 4, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
sched id LA4
-2.681061600 B
0. 03425264
-78.27
<.0001
sched id LA4 bnl
-2.228868944 B
0. 03453372
-64.54
<.0001
sched id LA4 bn2
-2.949067061 B
0. 03453372
-85.40
<.0001
sched id LA92
-2.037330183 B
0.04409785
-46.20
<.0001
sched id LOCAL
-2.891494279 B
0.04642046
-62.29
<.0001
sched id LSP1
-4.016778706 B
0.03252343
-123.50
<.0001
sched id LSP2
-3.658422380 B
0.03251950
-112.50
<.0001
sched id LSP3
-3.091249350 B
0.03251947
-95.06
<.0001
sched id NYCC
-3.324929527 B
0.03179596
-104.57
<.0001
sched id RAMP
-1.317329251 B
0.04642045
-28.38
<.0001
sched id SC03
-1.990067788 B
0.23130078
-8. 60
<.0001
sched id SCC12
-3.135191613 B
0.03199675
-97.98
<.0001
sched id SCC36
-1.761510067 B
0.03199581
-55.05
<.0001
sched id ST01
-2.351623014 B
0.08080087
-29.10
<.0001
sched"id UNCFTP
-2.365910148 B
0. 04580849
-51.65
<.0001
sched id US06
0.000000000 B
msid cause 0B65F126140 2853
1.219682471 B
0.16330564
7. 47
<.0001
msid cause 0B65F131376 2508
1.006524023 B
0.19974439
5. 04
<.0001
msid cause 0B65F131376 2511
0.874861251 B
0.19974437
4.38
<.0001
msid cause 0B76G106479 2507
1.195103879 B
0.19974444
5. 98
<.0001
msid cause 0E35A612780 2188
-0.512793531 B
0.36014889
-1. 42
0.1545
cause ZL44A9D192228 94 -0
388755013 B
0.21575441
1
1—1
CO
o
o
0716
msid cause ZL44A9D192228 97
-0.241879394 B
0.21575334
-1.12
0.2623
msid cause ZL44A9D321918 22
-0.641053065 B
0.21575316
-2. 97
0.0030
msid cause ZL44A9D321918 23
-0.512313464 B
0.21575406
-2.37
0. 0176
msid cause ZL44AAD170176 25
0.000000000 B
aeon 0
-0.480464198 B
0.01753774
-27.40
<.0001
aeon 1
0.000000000 B
temp
-0. 001788124
0.00016781
-10.66
<.0001
rvp
-0.006942075
0.00188961
-3. 67
0. 0002
A2-21
-------
soakcat
GE60
0.187831320 B
0
08107240
2
32
0
0205
soakcat
LT60
-0.045042143 B
0
09659495
-0
47
0
6410
soakcat
None
0.000000000 B
oxyind
0
-0.009154559 B
0
00434263
-2
11
0
0350
oxyind
R
0.000000000 B
altcat
H
-0.088352061 B
0
17308075
-0
51
0
6097
altcat
L
0.000000000 B
powerl
0.000000000 B
fedcat
Fed LDV
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the normal
equations. Terms whose estimates are followed by the letter 'B' are not uniquely estimable.
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-22
-------
C02 Altitude
14:36 Friday, December 7, 2001 1
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
59685
89
4.1918975
2.3684228
3.4000000
39.0000000
hclimit
59685
89
0.4465065
0.2008579
0.2500000
3.4000000
disp
59774
0
2.7763789
1.0949340
0.9996722
7.5385120
testwght
47679
12095
3180.26
524.4764627
84.0000000
5500.00
road hp
46557
13217
7.9706210
1.8512358
3.5000000
16.4000000
odometer
59662
112
61278.51
33921.64
25.0000000
241829.00
Pi
59774
0
0.3916126
0.0809068
0
0.5425532
p2
59774
0
0.0329985
0.0270342
0
0.2081967
p3
59774
0
0.000215491
0.0021910
0
0. 0415973
p4
59774
0
0.000059174
0.000686905
0
0.0149750
avgtotpower
46557
13217
6.3551807
2.7084779
0.2568667
27.8207630
temp
59774
0
74.6175628
9.0418712
0
116.0000000
rvp
59774
0
9.1862265
0.9069326
6.3000000
14.6000000
mpg
59761
13
23.3620765
7.0226728
2.2700000
99.9900000
co2
59774
0
405.5660254
196.2705849
14.8000000
3888.40
gco2
59773
1
1261.74
750.8177886
57.1193667
13963.35
gco2 s
59774
0
2.4612491
0.8577710
0.0658816
27.7050643
ch4
31848
27926
0. 0925711
0.1942913
0.0010000
8.7500000
gch4
31847
27927
0.2990842
0.4216180
0.0013872
19.1427067
mgch4 s
31848
27926
0. 4922701
0.6804805
0.0032306
26.5515278
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-23
-------
C02 Altitude
The FREQ Procedure
14:36 Friday, December 7, 2001 2
fueltype
GAS
Frequency
59774
Percent
100.00
Cumulative
Frequency
59774
Cumulative
Percent
100.00
fedcat Frequency
Fed LDV 59774 100.00
Cumulative Cumulative
Percent Frequency Percent
59774
100.00
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-24
-------
l_yr
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
C02 Altitude 14:36 Friday, December 7, 2001 3
The FREQ Procedure
Cumulative Cumulative
Frequency Percent Frequency Percent
18
o
o
CO
18
o
o
CO
21
0. 04
39
0. 07
51
0. 09
90
0.15
511
0. 85
601
1. 01
579
0. 97
1180
1. 97
793
1.33
1973
3. 30
1672
2. 80
3645
6.10
6770
11.33
10415
17. 42
2189
3. 66
12604
21. 09
4167
6. 97
16771
28. 06
3562
5. 96
20333
CO
O
K)
4985
8.34
25318
42.36
6349
10. 62
31667
52. 98
6892
11.53
38559
64.51
6446
10.78
45005
75.29
5403
9.04
50408
84.33
4160
6.96
54568
91.29
1974
3. 30
56542
94.59
1277
2.14
57819
96. 73
650
1. 09
58469
97. 82
541
0. 91
59010
98.72
171
0.29
59181
99. 01
330
0.55
59511
99. 56
136
0.23
59647
99. 79
127
0.21
59774
100.00
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-25
-------
C02 Altitude 14:36 Friday, December 7, 2001 4
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
588
o
CO
588
o
CO
NOTFI
16494
27.59
17082
28.58
PFI
25046
41. 90
42128
70. 48
TBI
17646
29. 52
59774
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
54
0. 09
54
0. 09
3WAY
35736
59.79
35790
59.88
NONE
132
0.22
35922
60.10
OX3W
19137
32. 02
55059
92.11
OXID
4715
7. 89
59774
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
2
35
0.06
35
0.06
3
118
0.20
153
0.26
4
34413
57.57
34566
57. 83
5
84
0.14
34650
57. 97
6
17401
29.11
52051
87. 08
8
7723
12. 92
59774
100.00
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-26
-------
C02 Altitude
The FREQ Procedure
14:36 Friday, December 7, 2001
aspirated
Frequency
Percent
Cumulative
Frequency
CHARGED
NATURAL
67
2301
57406
0. 11
3. 85
96.04
67
2368
59774
Cumulative
Percent
0.11
3.96
100.00
tran_type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
54
45089
14631
0. 09
75. 43
24. 48
54
45143
59774
0. 09
75.52
100.00
repairs
A
B
S
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
7386
11444
40944
12.36
19.15
68.50
7386
18830
59774
12.36
31.50
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
420
43912
15442
0.70
73. 46
25. 83
420
44332
59774
0.70
74.17
100.00
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-27
-------
C02 Altitude 14:36 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
420 0.70 420 0.70
0 41681 69.73 42101 70.43
1 17673 29.57 59774 100.00
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-28
-------
C02 Altitude 14:36 Friday, December 7, 2001 7
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
40 MPH
1
o
o
o
1
o
o
o
ART-AB
76
0.13
77
0.13
ART-CD
79
0.13
156
0.26
ART-EF
89
0.15
245
0. 41
CAART1
50
0. 08
295
0. 49
CAART2
51
0. 09
346
0.58
CAART3
52
0. 09
398
0. 67
CACYC1
49
0. 08
447
0.75
CACYC2
50
0. 08
497
0. 83
CACYC3
50
0. 08
547
0. 92
CACYC4
52
0. 09
599
1. 00
CACYC5
53
0. 09
652
1. 09
CACYC6
51
0. 09
703
1.18
CACYC7
51
0. 09
754
1.26
CDH22 6
65
0.11
819
1.37
F505
104
0.17
923
1.54
FTP bnl
11085
18.54
12008
20. 09
FTP bn2
11085
18.54
23093
38. 63
FTP bn3
11085
18.54
34178
57.18
FWY-AC
94
0.16
34272
57.34
FWY-D
76
0.13
34348
57. 46
FWY-E
76
0.13
34424
57.59
FWY-F
89
0.15
34513
57.74
FWY-G
76
0.13
34589
57. 87
FWY-HI
94
0.16
34683
58. 02
HWFET
3384
5. 66
38067
63. 68
IM240
4652
7.78
42719
71. 47
IM240 bnl
4605
7.70
47324
79.17
IM240 bn2
4605
7.70
51929
86.88
LA4
474
0.79
52403
87. 67
LA4 bnl
448
0.75
52851
88. 42
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-29
-------
C02 Altitude 14:36 Friday, December 7, 2001 8
The
FREQ Procedure
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
LA4 bn2
448
0.75
53299
89.17
LA92
90
0.15
53389
89. 32
LOCAL
76
0.13
53465
89. 45
LSP1
782
1.31
54247
90.75
LSP2
784
1.31
55031
92. 07
LSP3
784
1.31
55815
93. 38
NYCC
1265
2.12
57080
95. 49
RAMP
76
0.13
57156
95. 62
SC03
2
0. 00
57158
95. 62
SCC12
1170
1. 96
58328
97.58
SCC36
1171
1. 96
59499
99. 54
ST01
106
0.18
59605
99. 72
UNCFTP
73
0.12
59678
99. 84
USO 6
96
0.16
59774
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
59502
99. 54
59502
99. 54
R
92
0.15
59594
99. 70
S
180
0.30
59774
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
GE60
11176
18.70
11176
18.70
LT60
11097
18.56
22273
37.26
None
37501
62.74
59774
100.00
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-30
-------
C02 Altitude 14:36 Friday, December 7, 2001 9
The FREQ Procedure
Cumulative Cumulative
aeon Frequency Percent Frequency Percent
0
59336
99.27
59336
99.27
1
438
0.73
59774
100.00
Cumulative
Cumulative
tempcat
Frequency
Percent
Frequency
Percent
-15
9
0. 02
9
0. 02
-5
1067
1.79
1076
1. 80
5
286
0. 48
1362
2.28
15
705
1.18
2067
3.46
25
55871
93. 47
57938
96. 93
35
1503
2.51
59441
99. 44
45
333
0.56
59774
100.00
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
H
323
0.54
323
0.54
L
59451
99.46
59774
100.00
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-31
-------
C02 Altitude
The FREQ Procedure
14:36 Friday, December 7, 2001 10
rvpind Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
54
o
o
54
o
o
7
1044
1.75
1098
1. 84
8
2202
3. 68
3300
5.52
9
4994 6
83. 56
53246
89.08
10
135
0.23
53381
89. 30
11
915
1.53
54296
90. 84
12
5448
9.11
59744
99. 95
15
30
0. 05
59774
100.00
oxygenate
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
EtOH
MTBE
MeOH_EtOH
MeOH_TBA
None
144
3231
4053
57
6
52283
0.24
5. 41
6.78
0.10
0. 01
87. 47
144
3375
7428
7485
7491
59774
0.24
5. 65
12. 43
12.52
12.53
100.00
oxyind
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
O
R
7491
52283
12.53
87. 47
7491
59774
12.53
100.00
/camwheels/cam/epaco2ch4/oplco2_Altitude.sas
A2-32
-------
C02 Start VS. Run (HR505 VS. FTP_bnl)
The GLM Procedure
Class Level Information
1
14:48 Friday, December 7, 2001
Class Levels Values
msid_cause 57 1B3EJ46X0TN27942
~ 1B7GL23X6VS207 65
1FALP52U5TG19515
1FBJS31H4MHA6371
1FTEF15N3TLA6204
1G1JC124 6TM13549
1G4CU52155H63470
1GCGC24K6PE21849
1GMDX0 6E4VD13010
1GNGK2 6JXVJ3 67 62
1P4GP44R0TB4918 6
2B5WB35Z0RK54427
2GCGC29K2P110 667
3B7KF23W0SM16419
4T1CG12K8TU71331
sched_id 2 F505 FTP_bnl
aeon 2 0 1
oxyind 1 R
altcat 1 L
1B4GP44R7VB402 60
1B7GL23X8TS64978
1FALP53S2VG11918
1FMCU22X2TUC9731
1FTEF15Y7TLB9434
1G2NE52T3VM51809
1G4NJ52MXTC43690
1GCGC3 4 J 6VE13736
1GNDT13W07227189
1MELM50U7TG64 654
1P4GP44R5VB43200
2CNBE18 69T693495
2P4GH2536R238607
3B7KF23Z8VG82444
1B4GP54L1TB47731
1B7HC1643T5 65407
1FALP66L6SK15994
1FMDA11U9VZA2 50 6
1FTHE24H2PHA220 6
1G2WJ52M1TF2048 6
1G82G5281S215558
1GCGK24K6SE11319
1GNDT13W95224989
1MELM53S6VG610 64
2B4GP4431TR82162
2G4WB52L9S145158
2P4GH2537SR19053
3B7KF23ZXVM55883
1B7GL23X6V5207 65
1FALP1391VW1758 6
1FASP15J1SW617 65
1FTEF1547TLB9434
1FTJE34Y8SHB9014
1G4AG55M85 650 694
1G8ZF5284SZ30318
1GK0M19W9VB52228
1GNFK16R9VJ38 687
1N6SD11S2SC45944
2B4GP4534TR51823
2G4WS52M1V141616
2P4GP2437VR34032
4T1BF22K2VU90051
Number of observations 340
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-33
-------
C02 Start VS. Run (HR505 VS. FTP bnl)
2
14:48 Friday, December 7, 2001
Dependent Variable: gco2_s
The GLM Procedure
Source
DF
Sum of
Squares
Mean Square
F Value
Pr > F
Model
61
1120.660117
18.371477
1.35
0.
0561
Error
278
3782.869554
13.607444
Corrected Total
339
4903.529671
R-Square
Coeff Var Root
MSE gco2 s
Mean
0.228542
86
54510 3.688827 4.262318
Source
DF
Type I SS
Mean Square
F
Value
Pr
> F
msid cause
56
1042.155487
18.609919
1.37
0.
0541
sched id
1
51.501744
51.501744
3.78
0.
0527
rvp
1
15.391692
15.391692
1.13
0.
2885
temp
1
0.907564
0.907564
0. 07
0.
7964
aeon
1
8.651633
8.651633
0. 64
0.
4259
avgtotpower
1
2.051997
2.051997
0.15
0.
6981
oxyind
0
0.000000
altcat
0
0.000000
Source
DF
Type II SS
Mean Square
F
Value
Pr
> F
msid cause
56
779.4291530
13.9183777
1. 02
0.
4384
sched id
1
52.6853570
52.6853570
3. 87
0.
0501
/camwheels/cam/epaco2ch4/oplco2 SR.sas
A2-34
-------
C02 Start VS. Run (HR505 VS. FTP bnl)
3
14:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Source
rvp
temp
aeon
avgtotpower
oxyind
altcat
DF
1
1
1
1
0
0
Type II SS
15.8567685
8.3221691
7.6394324
2.0519969
0.0000000
0.0000000
Mean Square
15.8567685
8.3221691
7.6394324
2.0519969
F Value
Pr > F
1.17
0
2813
0. 61
0
4349
0.56
0
4543
0.15
0
6981
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid cause
1B3EJ4 6X0TN27942
1B4GP44R7VB402 60
1B4GP54L1TB47731
1B7GL23X6V5207 65
1B7GL23X6VS207 65
1B7GL23X8TS64978
1B7HC1643T5 65407
1FALP1391VW1758 6
1FALP52U5TG19515
1FALP53S2VG11918
1FALP66L6SK15994
1FASP15J1SW617 65
1FBJS31H4MHA6371
1FMCU22X2TUC9731
1FMDA11U9VZA2 50 6
1FTEF1547TLB9434
1FTEF15N3TLA6204
-45.15174445
-1.76338056
-0.25577019
0.02725160
0.00565475
-0.56108661
-0.08996887
0.94367143
-1.69792512
-1.21430620
-0.21465291
-1.55716192
-0. 49929035
0.66786111
-0.54840831
-0.17448419
0.07965847
0.76003848
39.96681262
3.86489196
3.05802965
2.95784035
3.01815786
3.82594095
3.07277437
3.28631074
3. 82110862
3.81110114
3.05839394
3. 82252247
3.23517381
3.31982418
3.83307648
3.24123853
3.84510557
3.26353782
-1.13
-0.46
-0. 08
0. 01
0. 00
-0.15
-0. 03
0.29
-0. 44
-0.32
-0. 07
-0. 41
-0.15
0.20
-0.14
-0. 05
0. 02
0.23
0.2596
0.6486
0. 9334
0.9927
0.9985
0.8835
0.9767
0.7742
0.6571
0.7503
0.9441
0.6841
0. 8775
0. 8407
0.8863
0.9571
0.9835
0.8160
/camwheels/cam/epaco2ch4/oplco2 SR.sas
A2-35
-------
C02 Start VS. Run (HR505 VS. FTP_bnl) 4
14:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1FTEF15Y7TLB9434
1.66970626 B
3. 72760783
LO
o
0.6546
msid
cause
1FTHE24H2PHA220 6
0.38015984 B
3.23016247
0.12
0.9064
msid
cause
1FTJE34Y8SHB9014
0.42010524 B
3. 09493924
0.14
0. 8921
msid
cause
1G1JC124 6TM13549
-1.43068553 B
3.82551900
-0.37
0.7087
msid
cause
1G2NE52T3VM51809
-1.40218351 B
3.81172418
-0.37
0.7133
msid
cause
1G2WJ52M1TF2048 6
-1.23959923 B
3.80829889
1
o
CO
CO
0.7450
msid
cause
1G4AG55M85 650 694
-0.27047538 B
3. 05401024
1
o
o
0.9295
msid
cause
1G4CU52155H63470
-1.08466413 B
3.82514590
1
o
K)
CO
0.7770
msid
cause
1G4NJ52MXTC43690
-1.30049700 B
3.81975824
1
o
CO
0.7338
msid
cause
1G82G5281S215558
-0.91466195 B
3.12590420
-0.29
0.7700
msid
cause
1G8ZF5284SZ30318
-1.27916266 B
2.97111553
-0. 43
0.6671
msid
cause
1GCGC24K6PE21849
1.13389731 B
3.84661682
0.29
0.7684
msid
cause
1GCGC3 4 J 6VE13736
0.59368295 B
3.23076756
o
1—1
CO
0. 8543
msid
cause
1GCGK24K6SE11319
0.09128055 B
3.22662693
o
o
CO
0. 9775
msid
cause
1GK0M19W9VB52228
-0.26992085 B
3. 90071551
-0. 07
0.9449
msid
cause
1GMDX0 6E4VD13010
-0.24640911 B
3. 05959290
CO
o
o
1
0. 9359
msid
cause
1GNDT13W07227189
10.98234555 B
3.11212108
3. 53
0. 0005
msid
cause
1GNDT13W95224989
-0.68727416 B
3. 84434729
1
o
1—1
CO
0.8582
msid
cause
1GNFK16R9VJ38 687
0.25146997 B
3.94435814
0.06
0.9492
msid
cause
1GNGK2 6JXVJ3 67 62
0.87445380 B
3.28949674
0.27
0.7906
msid
cause
1MELM50U7TG64 654
-1.11895509 B
3.80846820
1
o
K)
0.7691
msid
cause
1MELM53S6VG610 64
-1.32290074 B
3. 82792744
1
O
CO
en
0.7299
msid
cause
1N6SD11S2SC45944
-1.59997809 B
3.80770870
1
o
K)
0.6747
msid
cause
1P4GP44R0TB4918 6
-1.35911256 B
3.83030870
1
O
CO
en
0.7230
msid
cause
1P4GP44R5VB43200
-0.98230115 B
3.81106015
-0.26
0.7968
msid
cause
2B4GP4431TR82162
-0.23051110 B
3.05651509
CO
o
o
1
0.9399
msid
cause
2B4GP4534TR51823
-0.22380229 B
3.05918066
-0. 07
0.9417
msid
cause
2B5WB35Z0RK54427
0.54178089 B
3.18284928
0.17
0.8650
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-36
-------
C02 Start VS. Run (HR505 VS. FTP bnl)
The GLM Procedure
Dependent Variable: gco2_s
14:48 Friday, December 7, 2001
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
sched_id
sched_id
rvp
temp
aeon
aeon
avgtotpower
oxyind
altcat
2CNBE18 69T693495
2G4WB52L9S145158
2G4WS52M1V141616
2GCGC29K2P110 667
2P4GH2536R238607
2P4GH2537SR19053
2P4GP2437VR34032
3B7KF23W0SM16419
3B7KF23Z8VG82444
3B7KF23ZXVM55883
4T1BF22K2VU90051
4T1CG12K8TU71331
F505
FTP bnl
-1.33584655
-0.27188682
-1.48725341
0.13741963
-1.20306586
-1.22137613
-0. 84709270
1.11764377
0.33672284
0. 42454031
-0.37877951
0.00000000
-0.86475317
0.00000000
4.58551675
0.08012608
1.54088692
0.00000000
0.07004992
0.00000000
0.00000000
3.81836547
3.05576740
3.81962519
3.20399508
3. 80799351
3.81577659
3. 82104877
3.43800311
3.22294797
3.90664250
2.95505617
0. 43947632
4.24785053
0.10245753
2.05649902
0.18038797
-0.35
-0. 09
-0.39
0. 04
-0.32
-0.32
-0.22
0.33
0.10
0.11
-0.13
-1. 97
1. 08
0.78
0.75
0.39
0.7267
0.9292
0.6973
0.9658
0.7523
0.7491
0.8247
0.7454
0.9169
0.9135
0.8981
0.0501
0.2813
0.4349
0. 4543
0.6981
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-37
-------
C02 Start VS. Run (HR505 VS. FTP_bnl) 6
14:48 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
182
158
4. 0516484
1.3544576
3.2000000
10. 0000000
hclimit
174
166
0.6498276
0.1903252
0.4100000
0. 8000000
disp
340
0
4.7412131
1.6628159
1.6715831
8.3906916
testwght
340
0
5474.90
1810.83
2581.00
9400.00
road hp
340
0
14.2091176
5. 4988124
6.1000000
24.0000000
odometer
336
4
49884.81
36767.90
4829.00
169335.00
Pi
340
0
0.3382222
0.
. 000330180
0.3379447
0.3386139
p2
340
0
0.0474698
0.
. 000046341
0.0474308
0. 0475248
p3
340
0
0
0
0
0
p4
340
0
0
0
0
0
avgtotpower
340
0
12.1539742
3.9879927
5.7576284
20.0322887
temp
340
0
80.1773529
6.9662049
65.5000000
101.2000000
rvp
340
0
8. 9576471
0.0818322
8.8000000
9.0000000
mpg
338
2
16.5571769
5.6250453
0.8857765
36.5300000
co2
339
1
571.1548909
153.3728478
240.3850000
909.0030000
gco2
340
0
2150.56
1916.86
863.1878127
35910.27
gco2 s
340
0
4.2623177
3. 8032472
1.7092828
71.2505440
ch4
280
60
0.0807536
0.0769678
0.0010000
0.4640000
gch4
280
60
0.2899836
0.2763911
0.0035909
1.6662369
mgch4 s
280
60
0.5749793
0.5472407
0.0070970
3.2728571
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-38
-------
C02 Start VS. Run (HR505 VS. FTP_bnl) 7
14:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
340
100.00
340
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
180
52. 94
180
52. 94
Fed LDT1
6
1.76
186
54.71
Fed LDT2
73
21. 47
259
76.18
Fed LDT3
12
3. 53
271
79.71
Fed LDT4
2
0.59
273
80.29
Fed LDV
67
19.71
340
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
17
5. 00
17
5. 00
1993
58
17. 06
75
22. 06
1995
90
26. 47
165
48.53
1996
56
16. 47
221
65. 00
1997
103
30.29
324
95.29
1998
16
4.71
340
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-39
-------
C02 Start VS. Run (HR505 VS. FTP_bnl) 8
14:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
PFI
302
CO
CO
CO
K)
302
CO
CO
CO
K)
TBI
38
1—1
1—1
1—1
CO
340
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
275
CO
o
CO
CO
275
CO
CO
o
CO
OX3W
8
2.35
283
83.24
OXID
57
16.76
340
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
31
9.12
31
9.12
6
139
CO
CO
o
170
o
o
o
LO
8
155
45.59
325
95.59
10
15
4. 41
340
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
2
0.59
2
0.59
CHARGED
7
2.06
9
2. 65
NATURAL
331
97.35
340
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-40
-------
C02 Start VS. Run (HR505 VS. FTP_bnl)
The FREQ Procedure
Cumulative
tran_type Frequency Percent Frequency
AUTO
MANUAL
14:48 Friday, December 7, 2001
Cumulative
Percent
319
21
93. 82
6.18
319
340
93. 82
100.00
repairs Frequency
Cumulative Cumulative
Percent Frequency Percent
s
340
100.00
340
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
158
182
46. 47
53. 53
158
340
46. 47
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
166
174
48. 82
51.18
166
340
48. 82
100.00
sched id
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
F505
FTP bnl
199
141
58.53
41. 47
199
340
58.53
100.00
/camwheels/cam/epaco2ch4/oplco2 SR.sas
A2-41
-------
C02 Start VS. Run (HR505 VS. FTP bnl)
10
14:48 Friday, December 7, 2001
The FREQ Procedure
start run
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
R
S
199
141
58.53
41. 47
199
340
58.53
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
None
141
199
41. 47
58.53
141
340
41. 47
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
292
48
85. 88
14.12
292
340
85. 88
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
15
25
35
1
288
51
0.29
84.71
15. 00
1
289
340
0.29
85. 00
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-42
-------
C02 Start VS. Run (HR505 VS. FTP bnl)
The FREQ Procedure
altcat
L
Frequency
340
Percent
100.00
Cumulative
Frequency
340
11
14:48 Friday, December 7, 2001
Cumulative
Percent
100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
340
100.00
340
100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None
340
100.00
340
100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R
340
100.00
340
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-43
-------
C02 Start VS. Run (HR505 VS. FTP_bn3)
The GLM Procedure
Class Level Information
12
14:48 Friday, December 7, 2001
Class Levels Values
msid_cause 57 1B3EJ46X0TN27942
~ 1B7GL23X6VS207 65
1FALP52U5TG19515
1FBJS31H4MHA6371
1FTEF15N3TLA6204
1G1JC124 6TM13549
1G4CU52155H63470
1GCGC24K6PE21849
1GMDX0 6E4VD13010
1GNGK2 6JXVJ3 67 62
1P4GP44R0TB4918 6
2B5WB35Z0RK54427
2GCGC29K2P110 667
3B7KF23W0SM16419
4T1CG12K8TU71331
sched_id 2 F505 FTP_bn3
aeon 2 0 1
oxyind 1 R
altcat 1 L
1B4GP44R7VB402 60
1B7GL23X8TS64978
1FALP53S2VG11918
1FMCU22X2TUC9731
1FTEF15Y7TLB9434
1G2NE52T3VM51809
1G4NJ52MXTC43690
1GCGC3 4 J 6VE13736
1GNDT13W07227189
1MELM50U7TG64 654
1P4GP44R5VB43200
2CNBE18 69T693495
2P4GH2536R238607
3B7KF23Z8VG82444
1B4GP54L1TB47731
1B7HC1643T5 65407
1FALP66L6SK15994
1FMDA11U9VZA2 50 6
1FTHE24H2PHA220 6
1G2WJ52M1TF2048 6
1G82G5281S215558
1GCGK24K6SE11319
1GNDT13W95224989
1MELM53S6VG610 64
2B4GP4431TR82162
2G4WB52L9S145158
2P4GH2537SR19053
3B7KF23ZXVM55883
1B7GL23X6V5207 65
1FALP1391VW1758 6
1FASP15J1SW617 65
1FTEF1547TLB9434
1FTJE34Y8SHB9014
1G4AG55M85 650 694
1G8ZF5284SZ30318
1GK0M19W9VB52228
1GNFK16R9VJ38 687
1N6SD11S2SC45944
2B4GP4534TR51823
2G4WS52M1V141616
2P4GP2437VR34032
4T1BF22K2VU90051
Number of observations 340
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-44
-------
C02
Start
VS. Run (HR505 VS
FTP bn3)
1—1
CO
Friday,
Decembe
The GLM Procedure
it Variable: gco2 s
Sum of
Source
DF
Squares
Mean Square
F
Value
Pr > F
Model
61
1076.110151
17.641150
1.28
0. 0956
Error
278
3831.732828
13.783212
Corrected Total
339
4907.842978
R-Square
Coeff Var Root MSE gco2 s
Mean
0.219263
90
89873 3.712575 4.084298
Source
DF
Type I SS
Mean Square
F
Value
Pr > F
msid cause
56
1043.565476
18.635098
1.35
0.0609
rvp
1
15.259320
15.259320
1.11
0.2936
sched id
1
11. 027695
11.027695
o
CO
o
0.3718
temp
1
0.614650
0.614650
o
o
0. 8329
aeon
1
3.860355
3.860355
0.28
0.5971
avgtotpower
1
1.782655
1.782655
0.13
0.7194
oxyind
0
0.000000
altcat
0
0.000000
Source
DF
Type II SS
Mean Square
F
Value
Pr > F
msid cause
56
785.3677969
14. 0244249
1. 02
0.4484
rvp
1
15.1675137
15.1675137
1.10
0.2951
/camwheels/cam/epaco2ch4/oplco2 SR.sas
13
A2-45
-------
C02
Start
VS. Run (HR505 VS
FTP bn3)
1—1
CO
Friday,
December
The GLM Procedure
Dependent Variable:
gco2 s
Source
DF
Type II SS
Mean Square F
Value
Pr > F
sched id
1
10.3482750
10.3482750
0.75
0.3870
temp
1
3.5493830
3.5493830
0.26
0.6122
aeon
1
3.0998541
3.0998541
0.22
0.6357
avgtotpower
1
1.7826553
1.7826553
0.13
0.7194
oxyind
0
0.0000000
altcat
0
0.0000000
Standard
Parameter
Estimate
Error t
Value
Pr > |t|
Intercept
-41.47749800 B
39.63084606
1
1—1
o
en
0.2962
msid cause
1B3EJ4 6X0TN27942
-1.56787094 B
3. 88528838
o
o
1
0.6869
msid cause
1B4GP44R7VB402 60
-0.31823352 B
3.07764370
1
o
i—1
o
0.9177
msid cause
1B4GP54L1TB47731
0.02329348 B
2.97711758
o
o
1—1
0.9938
msid cause
1B7GL23X6V5207 65
0.02384188 B
3.03723148
o
o
1—1
0.9937
msid cause
1B7GL23X6VS207 65
-0.59199658 B
3.85125461
1
o
1—1
en
0.8779
msid cause
1B7GL23X8TS64978
-0.07044252 B
3.09288648
1
o
o
K)
0.9818
msid cause
1B7HC1643T5 65407
0.84494856 B
3.30818455
0.26
0.7986
msid cause
1FALP1391VW1758 6
-1.70822316 B
3.84577257
-0. 44
0.6573
msid cause
1FALP52U5TG19515
-1.23973396 B
3.83529084
-0.32
0.7468
msid cause
1FALP53S2VG11918
-0.35538353 B
3.07786816
1
o
1—1
K)
0.9082
msid cause
1FALP66L6SK15994
-1.50617419 B
3.84619473
1
O
CO
0.6957
msid cause
1FASP15J1SW617 65
-0.52814575 B
3.25605876
\—1
O
1
0.8713
msid cause
1FBJS31H4MHA6371
0.72048922 B
3.34154737
0.22
0.8294
msid cause
1FMCU22X2TUC9731
-0.65646303 B
3.85583364
-0.17
0.8649
msid cause
1FMDA11U9VZA2 50 6
-0.28183093 B
3.26167019
1
o
o
0.9312
msid cause
1FTEF1547TLB9434
0.08137189 B
3.86999560
0. 02
0.9832
msid cause
1FTEF15N3TLA6204
0.72670252 B
3.28503503
0.22
0.8251
14
/camwheels/cam/epaco2ch4/oplco2 SR.sas
A2-46
-------
C02 Start VS. Run (HR505 VS. FTP_bn3) 15
14:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1FTEF15Y7TLB9434
1.61728788 B
3.75117398
0. 43
0.6667
msid
cause
1FTHE24H2PHA220 6
0.36974409 B
3.25245045
0.11
0. 9096
msid
cause
1FTJE34Y8SHB9014
0.35482467 B
3.12113802
0.11
0. 9096
msid
cause
1G1JC124 6TM13549
-1.49562694 B
3. 84932883
1
o
CO
0.6979
msid
cause
1G2NE52T3VM51809
-1.34282213 B
3.83457193
1
o
CO
cn
0.7265
msid
cause
1G2WJ52M1TF2048 6
-1.24038358 B
3.83361390
1
o
CO
K)
0.7465
msid
cause
1G4AG55M85 650 694
-0.23243825 B
3.07368838
CO
O
o
1
0.9398
msid
cause
1G4CU52155H63470
-0.96339392 B
3. 84525958
1
o
K)
cn
0.8024
msid
cause
1G4NJ52MXTC43690
-1.31562427 B
3.84802570
1
o
CO
0.7327
msid
cause
1G82G5281S215558
-0.83053574 B
3.14613464
-0.26
0.7920
msid
cause
1G8ZF5284SZ30318
-1.15332425 B
2.99025365
-0.39
0.7000
msid
cause
1GCGC24K6PE21849
1.11087899 B
3.87137749
0.29
0.7744
msid
cause
1GCGC3 4 J 6VE13736
0.55114227 B
3.25350574
0.17
0.8656
msid
cause
1GCGK24K6SE11319
0.07377261 B
3.24954211
0. 02
0.9819
msid
cause
1GK0M19W9VB52228
-0.39447238 B
3. 92942502
1
o
1—1
o
0. 9201
msid
cause
1GMDX0 6E4VD13010
-0.26008277 B
3.07929104
CO
o
o
1
0.9327
msid
cause
1GNDT13W07227189
11.05016780 B
3.13218684
3. 53
0.0005
msid
cause
1GNDT13W95224989
-0.75865804 B
3.86854225
1
o
K)
O
0.8447
msid
cause
1GNFK16R9VJ38 687
0.18624048 B
3.96986908
0. 05
0.9626
msid
cause
1GNGK2 6JXVJ3 67 62
0.83988804 B
3.31091458
0.25
0.7999
msid
cause
1MELM50U7TG64 654
-1.22054343 B
3.83263632
1
o
CO
K)
0.7504
msid
cause
1MELM53S6VG610 64
-1.27960219 B
3.84964352
1
o
CO
CO
0.7398
msid
cause
1N6SD11S2SC45944
-1.55436941 B
3. 83324805
1
o
1—1
0.6854
msid
cause
1P4GP44R0TB4918 6
-1.22335629 B
3.85362704
1
o
CO
K)
0.7511
msid
cause
1P4GP44R5VB43200
-1.02231160 B
3.83551503
-0.27
0.7900
msid
cause
2B4GP4431TR82162
-0.18824146 B
3.07620625
O
O
1
0.9512
msid
cause
2B4GP4534TR51823
-0.28260550 B
3.07805870
1
O
o
0.9269
msid
cause
2B5WB35Z0RK54427
0.54928810 B
3.20307898
0.17
0.8640
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-47
-------
C02 Start VS. Run (HR505 VS. FTP bn3)
16
14:48 Friday, December 7, 2001
Dependent Variable: gco2_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
rvp
sched_id
sched_id
temp
aeon
aeon
avgtotpower
oxyind
altcat
2CNBE18 69T693495
2G4WB52L9S145158
2G4WS52M1V141616
2GCGC29K2P110 667
2P4GH2536R238607
2P4GH2537SR19053
2P4GP2437VR34032
3B7KF23W0SM16419
3B7KF23Z8VG82444
3B7KF23ZXVM55883
4T1BF22K2VU90051
4T1CG12K8TU71331
F505
FTP_bn3
0
1
R
L
-1.39525251
-0.34728049
-1.35846854
0.17203326
-1.18820140
-1.19387370
-0.94382572
1. 05853805
0.31394530
0.32970299
-0.50895749
0.00000000
4.47007584
-0.37379613
0.00000000
0.04876069
0.92255189
0.00000000
0.06558074
0.00000000
0.00000000
3.84129431
3.07496436
3. 84289736
3.22542963
3. 83247806
3. 84186690
3.84345832
3.46455608
3.24569906
3.93326178
2.97381237
4.26120969
0. 43139592
0.09608787
1.94533943
0.18235506
-0.36
-0.11
-0.35
0. 05
-0.31
-0.31
-0.25
0.31
0.10
0. 08
-0.17
1. 05
-0. 87
0.51
0. 47
0.36
0.7167
0.9102
0.7240
0.9575
0.7568
0.7562
0.8062
0.7602
0. 9230
0. 9333
0.8642
0.2951
0.3870
0.6122
0.6357
0.7194
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-48
-------
C02 Start VS. Run (HR505 VS. FTP_bn3) 17
14:48 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
182
158
4. 0516484
1.3544576
3.2000000
10. 0000000
hclimit
174
166
0.6498276
0.1903252
0.4100000
0. 8000000
disp
340
0
4.7412131
1.6628159
1.6715831
8.3906916
testwght
340
0
5474.90
1810.83
2581.00
9400.00
road hp
340
0
14.2091176
5. 4988124
6.1000000
24.0000000
odometer
336
4
49884.81
36767.90
4829.00
169335.00
Pi
340
0
0.3382222
0.000330180
0.3379447
0.3386139
p2
340
0
0.0474698
0.000046341
0.0474308
0. 0475248
p3
340
0
0
0
0
0
p4
340
0
0
0
0
0
avgtotpower
340
0
12.1539742
3.9879927
5.7576284
20.0322887
temp
340
0
80.3417647
6.9617427
62.7000000
101.2000000
rvp
340
0
8. 9576471
0.0818322
8.8000000
9.0000000
mpg
338
2
17.5565878
5.9413422
0.8866933
37.6300000
co2
339
1
546.0961298
149.7081557
233.4230000
822.7690000
gco2
340
0
2060.84
1917.81
838.2284770
35910.27
gco2 s
340
0
4. 0842978
3.8049196
1.6631517
71.2505440
ch4
280
60
0. 0590750
0.0602929
0.0010000
0.3810000
gch4
280
60
0.2121352
0.2165090
0.0035909
1.3681816
mgch4 s
280
60
0. 4204111
0.4288661
0.0070970
2.6949702
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-49
-------
C02 Start VS. Run (HR505 VS. FTP_bn3) 18
14:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
340
100.00
340
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
180
52. 94
180
52. 94
Fed LDT1
6
1.76
186
54.71
Fed LDT2
73
21. 47
259
76.18
Fed LDT3
12
3. 53
271
79.71
Fed LDT4
2
0.59
273
80.29
Fed LDV
67
19.71
340
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
17
5. 00
17
5. 00
1993
58
17. 06
75
22. 06
1995
90
26. 47
165
48.53
1996
56
16. 47
221
65. 00
1997
103
30.29
324
95.29
1998
16
4.71
340
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-50
-------
C02 Start VS. Run (HR505 VS. FTP_bn3) 19
14:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
PFI
302
CO
CO
CO
K)
302
CO
CO
CO
K)
TBI
38
1—1
1—1
1—1
CO
340
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
275
CO
o
CO
CO
275
CO
CO
o
CO
OX3W
8
2.35
283
83.24
OXID
57
16.76
340
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
31
9.12
31
9.12
6
139
CO
CO
o
170
o
o
o
LO
8
155
45.59
325
95.59
10
15
4. 41
340
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
2
0.59
2
0.59
CHARGED
7
2.06
9
2. 65
NATURAL
331
97.35
340
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-51
-------
C02 Start VS. Run (HR505 VS. FTP_bn3) 20
14:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
tran_type Frequency Percent Frequency Percent
AUTO 319 93.82 319 93.82
MANUAL 21 6.18 340 100.00
Cumulative Cumulative
repairs Frequency Percent Frequency Percent
s
340
100.00
340
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
158
182
46. 47
53. 53
158
340
46. 47
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
166 48.82 166 48.82
0 174 51.18 340 100.00
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
F505 199 58.53 199 58.53
FTP_bn3 141 41.47 340 100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-52
-------
C02 Start VS. Run (HR505 VS. FTP bn3)
21
14:48 Friday, December 7, 2001
The FREQ Procedure
start run
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
R
S
199
141
58.53
41. 47
199
340
58.53
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
LT60
None
141
199
41. 47
58.53
141
340
41. 47
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
292
48
85. 88
14.12
292
340
85. 88
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
15
25
35
2
287
51
0.59
84. 41
15. 00
2
289
340
0.59
85. 00
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-53
-------
C02 Start VS. Run (HR505 VS. FTP bn3)
The FREQ Procedure
altcat
L
Frequency
340
Percent
100.00
Cumulative
Frequency
340
22
14:48 Friday, December 7, 2001
Cumulative
Percent
100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
340
100.00
340
100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None
340
100.00
340
100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R
340
100.00
340
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-54
-------
C02 Soak Time (FTP_bnl VS. FTP_bn3)
The GLM Procedure
Class Level Information
23
14:48 Friday, December 7, 2001
Class Levels Values
msid_cause 57 1B3EJ46X0TN27942
~ 1B7GL23X6VS207 65
1FALP52U5TG19515
1FBJS31H4MHA6371
1FTEF15N3TLA6204
1G1JC124 6TM13549
1G4CU52155H63470
1GCGC24K6PE21849
1GMDX0 6E4VD13010
1GNGK2 6JXVJ3 67 62
1P4GP44R0TB4918 6
2B5WB35Z0RK54427
2GCGC29K2P110 667
3B7KF23W0SM16419
4T1CG12K8TU71331
sched_id 2 FTP_bnl FTP_bn3
aeon 2 0 1
oxyind 1 R
altcat 1 L
1B4GP44R7VB402 60
1B7GL23X8TS64978
1FALP53S2VG11918
1FMCU22X2TUC9731
1FTEF15Y7TLB9434
1G2NE52T3VM51809
1G4NJ52MXTC43690
1GCGC3 4 J 6VE13736
1GNDT13W07227189
1MELM50U7TG64 654
1P4GP44R5VB43200
2CNBE18 69T693495
2P4GH2536R238607
3B7KF23Z8VG82444
1B4GP54L1TB47731
1B7HC1643T5 65407
1FALP66L6SK15994
1FMDA11U9VZA2 50 6
1FTHE24H2PHA220 6
1G2WJ52M1TF2048 6
1G82G5281S215558
1GCGK24K6SE11319
1GNDT13W95224989
1MELM53S6VG610 64
2B4GP4431TR82162
2G4WB52L9S145158
2P4GH2537SR19053
3B7KF23ZXVM55883
1B7GL23X6V5207 65
1FALP1391VW1758 6
1FASP15J1SW617 65
1FTEF1547TLB9434
1FTJE34Y8SHB9014
1G4AG55M85 650 694
1G8ZF5284SZ30318
1GK0M19W9VB52228
1GNFK16R9VJ38 687
1N6SD11S2SC45944
2B4GP4534TR51823
2G4WS52M1V141616
2P4GP2437VR34032
4T1BF22K2VU90051
Number of observations 282
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-55
-------
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
C02 Soak Time (FTP bnl VS. FTP bn3)
The GLM Procedure
24
14:48 Friday, December 7, 2001
Sum of
DF Squares
61 3360.183450
220 5991.932168
281 9352.115618
Mean Square
55. 084975
27.236055
F Value
2. 02
Pr > F
0.0001
R-Square
0.359297
Coeff Var
118.9567
Root MSE
5.218817
gco2_s Mean
4.387159
Source
msid_cause
rvp
aeon
temp
sched_id
avgtotpower
oxyind
altcat
DF
56
1
1
1
1
1
0
0
Type I SS
3226.980679
79.358208
10.032212
23.132211
17.297084
3.383057
0.000000
0.000000
Mean Square
57.624655
79.358208
10.032212
23.132211
17.297084
3.383057
F Value
2.12
2. 91
0.37
0. 85
0. 64
0.12
Pr > F
<.0001
0.0892
0.5445
0.3578
0.4264
0.7248
Source
msid_cause
rvp
DF
56
1
Type II SS
3085.735972
62.634232
Mean Square
55.102428
62.634232
F Value
2. 02
2.30
Pr > F
0. 0002
0.1308
/camwheels/cam/epaco2ch4/oplco2 SR.sas
A2-56
-------
C02 Soak Time (FTP bnl VS. FTP bn3)
25
14:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Source
aeon
temp
sched_id
avgtotpower
oxyind
altcat
DF
1
1
1
1
0
0
Type II SS
29.701878
21.778400
16.885035
3.383057
0.000000
0.000000
Mean Square
29.701878
21.778400
16.885035
3.383057
F Value
Pr > F
1
09
0
2975
0
80
0
3722
0
62
0
4319
0
12
0
7248
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid cause
1B3EJ4 6X0TN27942
1B4GP44R7VB402 60
1B4GP54L1TB47731
1B7GL23X6V5207 65
1B7GL23X6VS207 65
1B7GL23X8TS64978
1B7HC1643T5 65407
1FALP1391VW1758 6
1FALP52U5TG19515
1FALP53S2VG11918
1FALP66L6SK15994
1FASP15J1SW617 65
1FBJS31H4MHA6371
1FMCU22X2TUC9731
1FMDA11U9VZA2 50 6
1FTEF1547TLB9434
1FTEF15N3TLA6204
-98.92951267
-3.69299290
-1.06431756
-0.64994074
-0.85960512
-2.19490366
-0.91838184
0.49331702
-3.09596963
-2.76823944
-0. 81422055
-3.20532383
-0.63705968
-1.63035869
-2. 02676572
-1.07580784
-1.63709624
0. 40244279
62.15357951
5.51813734
, 33233253
, 19202738
, 37982128
, 43789269
,37250033
, 75292359
, 42940596
, 40090964
, 32733578
, 43500609
, 60340766
, 35291342
, 45302659
, 60200554
, 49078674
, 68885381
-1.59
-0. 67
-0.25
-0.16
-0.20
-0. 40
-0.21
0.10
-0.57
-0.51
-0.19
-0.59
-0.14
-0.30
-0.37
-0.23
-0.30
0. 09
0.1129
0.5040
0.8062
0.8769
0. 8446
0.6869
0.8338
0.9174
0.5691
0.6088
0.8509
0.5560
0.8901
0.7610
0.7105
0.8154
0.7659
0.9317
/camwheels/cam/epaco2ch4/oplco2 SR.sas
A2-57
-------
C02 Soak Time (FTP_bnl VS. FTP_bn3) 2 6
14:48 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1FTEF15Y7TLB9434
1.54588643 B
5.32518444
0.29
0.7719
msid
cause
1FTHE24H2PHA220 6
-1.72766982 B
5.11035367
-0.34
0.7356
msid
cause
1FTJE34Y8SHB9014
-1.34060099 B
4.75680520
-0.28
0.7783
msid
cause
1G1JC124 6TM13549
-2.63588566 B
5. 41692572
1
o
0.6270
msid
cause
1G2NE52T3VM51809
-2.90837511 B
5.39380680
LO
o
1
0.5903
msid
cause
1G2WJ52M1TF2048 6
-2.70213999 B
5.38809650
o
LO
o
1
0.6165
msid
cause
1G4AG55M85 650 694
-0.93692637 B
4.32169641
1
o
K)
K)
0.8286
msid
cause
1G4CU52155H63470
-2.98895113 B
5. 44615417
LO
LO
O
1
0.5837
msid
cause
1G4NJ52MXTC43690
-2.92686379 B
5. 43793560
LO
o
1
0.5910
msid
cause
1G82G5281S215558
-1.00435069 B
4.61880842
-0.22
0.8281
msid
cause
1G8ZF5284SZ30318
-1.91397869 B
4.22944566
-0. 45
0.6513
msid
cause
1GCGC24K6PE21849
-0.60006030 B
5. 49775452
1
o
1—1
1—1
0.9132
msid
cause
1GCGC3 4 J 6VE13736
-1.50657117 B
5.16205437
1
o
K)
0.7707
msid
cause
1GCGK24K6SE11319
-1.78406526 B
5.29445767
1
O
CO
0.7365
msid
cause
1GK0M19W9VB52228
-1.66145164 B
5.64336394
1
o
K)
0.7687
msid
cause
1GMDX0 6E4VD13010
-1.10448145 B
4.33695811
1
O
K)
Cn
0.7992
msid
cause
1GNDT13W07227189
21.13902910 B
4. 45205032
4.75
<.0001
msid
cause
1GNDT13W95224989
-2.34774209 B
5.49023864
1
o
CO
0.6693
msid
cause
1GNFK16R9VJ38 687
-1.58563398 B
5.77478026
-0.27
0.7839
msid
cause
1GNGK2 6JXVJ3 67 62
-1.45097689 B
5.36315461
-0.27
0.7870
msid
cause
1MELM50U7TG64 654
-2.53679803 B
5.38958734
-0. 47
0.6383
msid
cause
1MELM53S6VG610 64
-3.02122786 B
5. 43743689
LO
O
1
0.5790
msid
cause
1N6SD11S2SC45944
-3.34971463 B
5. 40145931
-0. 62
0.5358
msid
cause
1P4GP44R0TB4918 6
-3.18302296 B
5. 43523987
1
o
cn
0.5587
msid
cause
1P4GP44R5VB43200
-2.48683633 B
5.39799955
o
l
0.6455
msid
cause
2B4GP4431TR82162
-0.95254307 B
4.32814731
l
o
K)
K)
0.8260
msid
cause
2B4GP4534TR51823
-0.85876642 B
4.33509382
-0.20
0.8432
msid
cause
2B5WB35Z0RK54427
-1.73925428 B
5.12573255
-0.34
0.7347
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-58
-------
C02 Soak Time (FTP bnl VS. FTP bn3)
27
14:48 Friday, December 7, 2001
Dependent Variable: gco2_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
rvp
aeon
aeon
temp
sched_id
sched_id
avgtotpower
oxyind
altcat
2CNBE18 69T693495
2G4WB52L9S145158
2G4WS52M1V141616
2GCGC29K2P110 667
2P4GH2536R238607
2P4GH2537SR19053
2P4GP2437VR34032
3B7KF23W0SM16419
3B7KF23Z8VG82444
3B7KF23ZXVM55883
4T1BF22K2VU90051
4T1CG12K8TU71331
0
1
FTP_bnl
FTP_bn3
R
L
-2.63797668
-0.83862604
-3.13740228
-2.10974982
-2.76686154
-3.14373274
-2.18430137
-1.16592484
-1.95112110
-1.25940856
-1.15722215
0.00000000
9.69622001
3.62297579
0.00000000
0.15962993
0.49255380
0.00000000
0.12882865
0.00000000
0.00000000
40569657
32430743
42656795
12059701
38979729
44176220
41452710
62659022
21582399
67494387
18209635
6.39394193
3.46932975
0.17851447
0.62556839
0.36553577
-0. 49
-0.19
-0.58
-0. 41
-0.51
-0.58
-0. 40
-0.21
-0.37
-0.22
-0.28
1.52
1. 04
0. 89
0.79
0.35
0.6260
0.8464
0.5638
0.6807
0.6082
0.5641
0.6870
0.8360
0.7087
0.8246
0.7823
0.1308
0.2975
0.3722
0.4319
0.7248
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-59
-------
C02 Soak Time (FTP_bnl VS. FTP_bn3) 28
14:48 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
174
108
4.0264368
1.3720968
3.2000000
10. 0000000
hclimit
166
116
0.6449398
0.1914435
0.4100000
0. 8000000
disp
282
0
4.5185743
1.6536905
1.6715831
8.3906916
testwght
282
0
5107.73
1666.24
2581.00
9400.00
road hp
282
0
14.3326241
5.9746856
6.1000000
24.0000000
odometer
282
0
47779.37
36798.27
4829.00
169311.00
Pi
282
0
0.3386139
0
0.3386139
0.3386139
p2
282
0
0. 0475248
0
0. 0475248
0. 0475248
p3
282
0
0
0
0
0
p4
282
0
0
0
0
0
avgtotpower
282
0
11.7863990
4.1957597
5.7759930
20.0322887
temp
282
0
80.0769504
7.3879338
62.7000000
99.7000000
rvp
282
0
8.9489362
0.0873631
8.8000000
9.0000000
mpg
282
0
17.2111080
5.9805709
0.8857765
37.6300000
co2
280
2
548.7063500
156.4818747
233.4230000
909.0030000
gco2
282
0
2211.13
2907.58
838.2284770
35910.27
gco2 s
282
0
4.3871586
5.7690164
1.6631517
71.2505440
ch4
276
6
0.0861159
0.0765787
0.0040000
0.4640000
gch4
276
6
0.3092447
0.2749961
0.0143641
1.6662369
mgch4 s
276
6
0.6134701
0.5443187
0. 0285079
3.2728571
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-60
-------
C02 Soak Time (FTP_bnl VS. FTP_bn3) 29
14:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
282
100.00
282
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
124
43. 97
124
43. 97
Fed LDT1
6
2.13
130
46.10
Fed LDT2
72
25.53
202
71. 63
Fed LDT3
12
4.26
214
75. 89
Fed LDT4
2
0.71
216
76. 60
Fed LDV
66
K)
CO
O
282
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
12
4.26
12
4.26
1993
38
1—1
CO
CO
50
17.73
1995
76
26. 95
126
CO
1996
56
19.86
182
64.54
1997
84
29.79
266
94.33
1998
16
5. 67
282
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-61
-------
C02 Soak Time (FTP_bnl VS. FTP_bn3) 30
14:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
PFI
256
90.78
256
90.78
TBI
26
9.22
282
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
234
82. 98
234
82. 98
OX3W
8
2. 84
242
85. 82
OXID
40
14.18
282
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
30
10. 64
30
10. 64
6
134
47.52
164
58.16
8
106
37.59
270
95.74
10
12
4.26
282
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
2
0.71
2
0.71
CHARGED
6
2.13
8
2. 84
NATURAL
274
97.16
282
100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-62
-------
C02 Soak Time (FTP_bnl VS. FTP_bn3)
The FREQ Procedure
Cumulative
tran_type Frequency Percent Frequency
AUTO
MANUAL
31
14:48 Friday, December 7, 2001
Cumulative
Percent
2 62
20
92. 91
7. 09
2 62
282
92. 91
100.00
repairs Frequency
Cumulative Cumulative
Percent Frequency Percent
s
282
100.00
282
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
108
174
38.30
61.70
108
282
38.30
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
116
166
41.13
58. 87
116
282
41.13
100.00
sched id
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
FTP_bnl
FTP bn3
141
141
50. 00
50. 00
141
282
50. 00
100.00
/camwheels/cam/epaco2ch4/oplco2 SR.sas
A2-63
-------
C02 Soak Time (FTP_bnl VS. FTP_bn3) 32
14:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
282
100.00
282
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
141
141
50. 00
50. 00
141
282
50. 00
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
236
46
83. 69
16. 31
236
282
83. 69
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
15
25
35
3
233
46
1.06
82. 62
16. 31
3
236
282
1.06
83. 69
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
L 282 100.00 282 100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-64
-------
C02 Soak Time (FTP_bnl VS. FTP_bn3) 33
14:48 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
9 282 100.00 282 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 282 100.00 282 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 282 100.00 282 100.00
/camwheels/cam/epaco2ch4/oplco2_SR.sas
A2-65
-------
Appendix A4
Unified Result for gC02/s for Gasoline Vehicles
-------
All cycles, All operating conditions 1
11:48 Monday, December 17, 2001
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 42 40_MPH ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5
CACYC6 CACYC7 CDH226 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G
FWY-HI HWFET IM240 IM386 IM386_bnl IM386_bn2 IM386_bn3 LA92 LSP1 LSP2 LSP3 NYCC
RAMP SC03 SCC12 SCC36 ST01 UNCFTP US06
Number of observations 108413
NOTE: Due to missing values, only 78497 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-1
-------
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
All cycles, All operating conditions
The GLM Procedure
DF
42
78454
78496
2
11:48 Monday, December 17, 2001
Sum of
Squares
62374.28692
15549.09396
77923.38088
Mean Square F Value Pr > F
1485.10207 7493.18 <.0001
0.19819
R-Square
0.800457
Coeff Var
16.37535
Root MSE
0.445190
gco2_s Mean
2.718656
Source
avgtotpower
sched id
DF
1
41
Type I SS
59608.48366
2765.80326
Mean Square
59608.48366
67.45862
F Value
300759
340.37
Pr > F
<.0001
<.0001
Source
avgtotpower
sched id
DF Type II SS
1 22379.92313
41 2765.80326
Mean Square
22379.92313
67.45862
F Value
112919
340.37
Pr > F
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-2
-------
All cycles, All operating conditions 3
11:48 Monday, December 17, 2001
Dependent Variable: gco2_s
Parameter
Intercept
avgtotpower
sched
id
40 MPH
sched
id
ART-CD
sched
id
ART-EF
sched
id
CAART1
sched
id
CAART2
sched
id
CAART3
sched
id
CACYC1
sched
id
CACYC2
sched
id
CACYC3
sched
id
CACYC4
sched
id
CACYC5
sched
id
CACYC6
sched
id
CACYC7
sched
id
CDH22 6
sched
id
F505
sched
id
FTP bnl
sched
id
FTP bn2
sched
id
FTP bn3
sched
id
FWY-AC
sched
id
FWY-D
sched
id
FWY-E
sched
id
FWY-F
sched
id
FWY-G
sched
id
FWY-HI
sched
id
HWFET
sched
id
IM240
The GLM
Procedure
Standard
Estimate
Error
t Value
Pr > |t|
-0.769946028
B 0.03505045
-21.97
<.0001
0.269588208
0. 00080226
336.03
<.0001
1. 840244850
B 0.44637831
4.12
<.0001
1.327989817
B 0.06952575
19.10
<.0001
1.629691251
B 0.06352962
25. 65
<.0001
0. 942199783
B 0.07026530
13. 41
<.0001
0.667253930
B 0.06911317
9. 65
<.0001
2.844773853
B 0.06822026
41.70
<.0001
0.594842154
B 0.06872549
8. 66
<.0001
1.830399076
B 0.06844056
26.74
<.0001
0.807490072
B 0.06950678
11. 62
<.0001
1.087294475
B 0.06847048
15. 88
<.0001
0.631379302
B 0.06828611
9.25
<.0001
1.418229004
B 0.06992426
20.28
<.0001
1.482101085
B 0.07041426
21. 05
<.0001
1.140532022
B 0.05618200
20.30
<.0001
1.329058078
B 0.03507570
37. 89
<.0001
1.657813460
B 0.03158990
52. 48
<.0001
1.600487890
B 0.03327340
48.10
<.0001
1.328739320
B 0.03158990
42. 06
<.0001
0.453536262
B 0.07285042
6.23
<.0001
-1.899069168
B 0.05798597
-32.75
<.0001
0.415838236
B 0.07070882
5. 88
<.0001
1.441936039
B 0.05126131
28.13
<.0001
1.880247508
B 0.05965766
31.52
<.0001
-1.598213228
B 0.04800987
-33.29
<.0001
1.388044497
B 0.06625219
20. 95
<.0001
1.400000901
B 0.03070000
45. 60
<.0001
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-3
-------
All cycles, All operating conditions 4
11:48 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: gco2_s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched
id
IM38 6
1.133746260 B
0.03327145
CO
O
CO
<.0001
sched
id
IM386 bnl
1.056764830 B
0.03282736
32.19
<.0001
sched
id
IM38 6 bn2
1.439612881 B
0.03495188
41.19
<.0001
sched
id
IM38 6 bn3
1.012793920 B
0.03271578
30. 96
<.0001
sched
id
LA92 ~
1.177078862 B
0.05028080
23. 41
<.0001
sched
id
LSP1
1.342096872 B
0.03995108
33. 59
<.0001
sched
id
LSP2
1.604092990 B
0.03978056
40.32
<.0001
sched
id
LSP3
2.110317602 B
0.03971149
53.14
<.0001
sched
id
NYCC
1.932784640 B
0.04669894
41.39
<.0001
sched
id
RAMP
-0.663632446 B
0.08527771
-7.78
<.0001
sched
id
SC03
1.346753482 B
0.12268045
1—1
o
CO
<.0001
sched
id
SCC12
1.579604507 B
0.03551448
CO
<.0001
sched
id
SCC36
1.335158650 B
0.03280595
40.70
<.0001
sched
id
ST01
1.765340132 B
0.04327285
o
CO
o
<.0001
sched
id
UNCFTP
1.561768127 B
0.05439014
28.71
<.0001
sched
id
USO 6
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-4
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 5
11:48 Monday, December 17, 2001
The GLM Procedure
Class Level Information
Class Levels Values
fedcat 6 Fed_HDV Fed_LDTl Fed_LDT2 Fed_LDT3 Fed_LDT4 Fed_LDV
model_yr 26 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
colimit 12 3.2 3.4 4.4 5 6.7 7 10 14.4 15 18 20 39
hclimit 8 0.25 0.41 0.8 1.18 1.5 1.7 2 3.4
fi_type 3 NOTFI PFI TBI
cat_type 4 3WAY NONE OX3W OXID
aspirated 2 CHARGED NATURAL
tran_type 2 AUTO MANUAL
repairs 2 A B
cohigh 2 0 1
hchigh 2 0 1
Number of observations 108413
NOTE: Due to missing values, only 50104 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-5
-------
All cycles, All operating conditions, with gCO/s and gTHC/s
11:48 Monday,
6
December 17, 2001
The GLM Procedure
Dependent Variable: resid
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
55
2219.674281
40.357714
329.56
<.0001
Error
50048
6128.757915
0.122458
Corrected Total
50103
8348.432196
R-Square <
3oeff Var Root MSE resid
Mean
0.265879
-2805.099 0.
349939 -0.012475
Source
DF
Type I SS
Mean Square
F Value
Pr > F
tran type
1
854.1453454
854.1453454
6975.03
<.0001
model yr
24
180.1909024
7.5079543
61.31
<.0001
zippy
1
770.3046922
770.3046922
6290.38
<.0001
fi type
2
80.8108550
40.4054275
329.95
<.0001
aspirated
1
35.8284696
35.8284696
292.58
<.0001
repairs
1
47.1353126
47.1353126
384.91
<.0001
colimit
10
110. 0448100
11. 0044810
89.86
<.0001
testwght
1
21.3799291
21.3799291
174.59
<.0001
cat type
3
18.4622386
6.1540795
50.25
<.0001
fedcat
5
16.5901825
3. 3180365
27.10
<.0001
disp
1
18.3077389
18.3077389
149.50
<.0001
hchigh
1
57.6176245
57.6176245
470.51
<.0001
cohigh
1
5.4405845
5.4405845
44. 43
<.0001
odometer
1
1.8464058
1.8464058
15. 08
0.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-6
-------
All cycles,
All operating conditions, with gCO/s and gTHC/s
11:48 Monday,
December
The GLM Procedure
Dependent Variable: resid
Source
DF
Type I SS
Mean Square
F Value
Pr > F
hclimit
2
1.5691900
0.7845950
6.41
0. 0017
Source
DF
Type II SS
Mean Square
F Value
Pr > F
tran type
1
150.1508323
150.1508323
1226.15
<.0001
model yr
23
76.1457354
3.3106841
27. 04
<.0001
zippy
1
63.3139557
63.3139557
517. 03
<.0001
fi type
2
34.8621432
17. 4310716
142.34
<.0001
aspirated
1
33.9033791
33.9033791
276.86
<.0001
repairs
1
33.2625987
33.2625987
271.63
<.0001
colimit
6
29.3034269
4.8839045
39. 88
<.0001
testwght
1
27.7185914
27.7185914
226.35
<.0001
cat type
3
21.3099814
7.1033271
58. 01
<.0001
fedcat
5
21.1681105
4.2336221
34.57
<.0001
disp
1
17.1652185
17.1652185
140.17
<.0001
hchigh
1
19.3267078
19.3267078
157.82
<.0001
cohigh
1
5.5396392
5.5396392
45.24
<.0001
odometer
1
1. 8547686
1.8547686
15.15
<.0001
hclimit
2
1.5691900
0.7845950
6.41
0. 0017
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
tran_type AUTO
tran_type MANUAL
model_yr 1974
-1.541855406 B
0.149298369 B
0.000000000 B
0.483256890 B
0.14150002
0.00426367
0.16345433
-10.90
35. 02
2. 96
<.0001
<.0001
0.0031
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-7
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 8
11:48 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: resid
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
model yr
1975
0.009991070 B
0.10936380
0. 09
0.9272
model yr
1976
0.555315692 B
0.09655039
5.75
<.0001
model yr
1977
0.268326554 B
0. 08584907
3.13
0.0018
model yr
1978
0.315501944 B
0.08553627
3. 69
0.0002
model yr
1979
0.151204826 B
0.08275830
1. 83
0.0677
model yr
1980
0.063589773 B
0.04222795
1.51
0.1321
model yr
1981
0.011921171 B
0.03922702
0.30
0.7612
model yr
1982
0.026972112 B
0.03999517
0. 67
0.5001
model yr
1983
-0.010359568 B
0.03889943
-0.27
0.7900
model yr
1984
0.007272962 B
0.03897479
0.19
0. 8520
model yr
1985
-0.029062813 B
0.03884322
-0.75
0. 4543
model yr
1986
-0.097725031 B
0.03875234
-2.52
0. 0117
model yr
1987
-0.105016394 B
0.03874636
-2.71
0.0067
model yr
1988
-0.083350912 B
0.03867535
-2.16
0.0312
model yr
1989
-0.072402819 B
0.03870526
-1. 87
0.0614
model yr
1990
-0.080431266 B
0.03873718
1
K)
O
CO
0. 0379
model yr
1991
-0.041339475 B
0.03915701
-1.06
0.2911
model yr
1992
-0.019797355 B
0.04000826
1
o
0.6207
model yr
1993
0.001709303 B
0.04165907
0. 04
0.9673
model yr
1994
-0.133526639 B
0.04208213
-3.17
0. 0015
model yr
1995
-0.100866962 B
0.04531583
1
K)
K)
CO
0.0260
model yr
1996
-0.060733463 B
0.04492995
1
1—1
CO
Cn
0.1765
model yr
1997
-0.050453600 B
0.04539637
-l. n
0.2664
model yr
1998
0.000000000 B
zippy
1.251825924
0.05505377
22.74
<.0001
fi type
NOTFI
-0.017173720 B
0.00561212
-3.06
0. 0022
fi type
PFI
0.065376736 B
0.00428290
15.26
<.0001
fi type
TBI
0.000000000 B
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-8
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 9
11:48 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: resid
Parameter
Estimate
Standard
Error
t Value
aspirated
CHARGED
0.151787531 B
0. 00912237
16. 64
aspirated NATURAL
0.000000000 B
repairs
A
0.084133686 B
0.00510487
16.48
repairs
B
0.000000000 B
colimit
3.2
0.489368805 B
0.14575585
3.36
colimit
3.4
0.301985434 B
0.12643267
2.39
colimit
4.4
0.397181264 B
0.12540936
3.17
colimit
5
-1.500737867 B
0.17732598
CO
1
colimit
6.7
0.667733814 B
0.13799945
CO
colimit
7
0.265772953 B
0.12647194
2.10
colimit
10
0.120060524 B
0.11493091
1. 04
colimit
14. 4
-0.429335626 B
0.19248829
1
K)
K)
CO
colimit
15
-0.130133896 B
0.10266736
-1.27
colimit
18
-0.021789460 B
0.11372811
1
o
1—1
colimit
20
0.000000000 B
colimit
39
0.000000000 B
testwght
0. 000217858
0.00001448
15. 05
cat type
3WAY
-0.039207684 B
0.00946206
-4.14
cat type
NONE
0.032177409 B
0.03956505
o
CO
1—1
cat type
OX3W
0.018448482 B
0.00916669
2. 01
cat type
OXID
0.000000000 B
fedcat
Fed HDV
0.934275934 B
0.13667137
6.84
fedcat
Fed LDT1
-0.159231627 B
0. 05433216
1
K)
CO
fedcat
Fed LDT2
-0.294767316 B
0.07244435
-4. 07
fedcat
Fed LDT3
-0.051651094 B
0.05617114
1
o
K)
fedcat
Fed LDT4
1.590104816 B
0.16931143
CO
fedcat
Fed LDV
0.000000000 B
disp
-0.187279493
0.01581825
1
1—1
1—1
CO
Pr > |t|
<.0001
<.0001
0.0008
0.0169
0. 0015
<.0001
<.0001
0.0356
0.2962
0. 0257
0.2050
0.8481
<.0001
<.0001
0.4161
0. 0442
<.0001
0.0034
<.0001
0.3578
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-9
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 10
11:48 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: resid
Standard
Parameter Estimate Error t Value Pr > |t|
hchigh
0
0.063808682 B
0
00507918
12
56
<
0001
hchigh
1
0.000000000 B
cohigh
0
0.034997108 B
0
00520336
6
73
<
0001
cohigh
1
0.000000000 B
odometer
0. 000000201
0
00000005
3
89
<
0001
hclimit
0.25
-0.304978923 B
0
08523228
-3
58
0
0003
hclimit
0. 41
-0.158403926 B
0
07231267
-2
19
0
0285
hclimit
CO
o
0.000000000 B
hclimit
1—1
1—1
CO
0.000000000 B
hclimit
1.5
0.000000000 B
hclimit
1.7
0.000000000 B
hclimit
2
0.000000000 B
hclimit
3.4
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-10
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 11
11:48 Monday, December 17, 2001
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 42 40_MPH ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5
CACYC6 CACYC7 CDH226 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G
FWY-HI HWFET IM240 IM386 IM386_bnl IM386_bn2 IM386_bn3 LA92 LSP1 LSP2 LSP3 NYCC
RAMP SC03 SCC12 SCC36 ST01 UNCFTP US06
Number of observations 108413
NOTE: Due to missing values, only 78497 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-11
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 12
11:48 Monday, December 17, 2001
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
42 62374.28692
78454 15549.09396
78496 77923.38088
Mean Square
1485.10207
0.19819
F Value
7493.18
Pr > F
<.0001
R-Square
0.800457
Coeff Var
16.37535
Root MSE
0.445190
gco2_s Mean
2.718656
Source
avgtotpower
sched id
DF
1
41
Type I SS
59608.48366
2765.80326
Mean Square
59608.48366
67.45862
F Value
300759
340.37
Pr > F
<.0001
<.0001
Source
avgtotpower
sched id
DF Type II SS
1 22379.92313
41 2765.80326
Mean Square
22379.92313
67.45862
F Value
112919
340.37
Pr > F
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-12
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 13
11:48 Monday, December 17, 2001
Dependent Variable: gco2_s
Parameter
Intercept
avgtotpower
sched
id
40 MPH
sched
id
ART-CD
sched
id
ART-EF
sched
id
CAART1
sched
id
CAART2
sched
id
CAART3
sched
id
CACYC1
sched
id
CACYC2
sched
id
CACYC3
sched
id
CACYC4
sched
id
CACYC5
sched
id
CACYC6
sched
id
CACYC7
sched
id
CDH22 6
sched
id
F505
sched
id
FTP bnl
sched
id
FTP bn2
sched
id
FTP bn3
sched
id
FWY-AC
sched
id
FWY-D
sched
id
FWY-E
sched
id
FWY-F
sched
id
FWY-G
sched
id
FWY-HI
sched
id
HWFET
sched
id
IM240
The GLM
Procedure
Standard
Estimate
Error
t Value
Pr > |t|
-0.769946028
B 0.03505045
-21.97
<.0001
0.269588208
0. 00080226
336.03
<.0001
1. 840244850
B 0.44637831
4.12
<.0001
1.327989817
B 0.06952575
19.10
<.0001
1.629691251
B 0.06352962
25. 65
<.0001
0. 942199783
B 0.07026530
13. 41
<.0001
0.667253930
B 0.06911317
9. 65
<.0001
2.844773853
B 0.06822026
41.70
<.0001
0.594842154
B 0.06872549
8. 66
<.0001
1.830399076
B 0.06844056
26.74
<.0001
0.807490072
B 0.06950678
11. 62
<.0001
1.087294475
B 0.06847048
15. 88
<.0001
0.631379302
B 0.06828611
9.25
<.0001
1.418229004
B 0.06992426
20.28
<.0001
1.482101085
B 0.07041426
21. 05
<.0001
1.140532022
B 0.05618200
20.30
<.0001
1.329058078
B 0.03507570
37. 89
<.0001
1.657813460
B 0.03158990
52. 48
<.0001
1.600487890
B 0.03327340
48.10
<.0001
1.328739320
B 0.03158990
42. 06
<.0001
0.453536262
B 0.07285042
6.23
<.0001
-1.899069168
B 0.05798597
-32.75
<.0001
0.415838236
B 0.07070882
5. 88
<.0001
1.441936039
B 0.05126131
28.13
<.0001
1.880247508
B 0.05965766
31.52
<.0001
-1.598213228
B 0.04800987
-33.29
<.0001
1.388044497
B 0.06625219
20. 95
<.0001
1.400000901
B 0.03070000
45. 60
<.0001
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-13
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 14
11:48 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: gco2_s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched
id
IM38 6
1.133746260 B
0.03327145
CO
O
CO
<.0001
sched
id
IM386 bnl
1.056764830 B
0.03282736
32.19
<.0001
sched
id
IM38 6 bn2
1.439612881 B
0.03495188
41.19
<.0001
sched
id
IM38 6 bn3
1.012793920 B
0.03271578
30. 96
<.0001
sched
id
LA92 ~
1.177078862 B
0.05028080
23. 41
<.0001
sched
id
LSP1
1.342096872 B
0.03995108
33. 59
<.0001
sched
id
LSP2
1.604092990 B
0.03978056
40.32
<.0001
sched
id
LSP3
2.110317602 B
0.03971149
53.14
<.0001
sched
id
NYCC
1.932784640 B
0.04669894
41.39
<.0001
sched
id
RAMP
-0.663632446 B
0.08527771
-7.78
<.0001
sched
id
SC03
1.346753482 B
0.12268045
1—1
o
CO
<.0001
sched
id
SCC12
1.579604507 B
0.03551448
CO
<.0001
sched
id
SCC36
1.335158650 B
0.03280595
40.70
<.0001
sched
id
ST01
1.765340132 B
0.04327285
o
CO
o
<.0001
sched
id
UNCFTP
1.561768127 B
0.05439014
28.71
<.0001
sched
id
USO 6
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-14
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 15
11:48 Monday, December 17, 2001
The GLM Procedure
Class Level Information
Class Levels Values
fedcat 6 Fed_HDV Fed_LDTl Fed_LDT2 Fed_LDT3 Fed_LDT4 Fed_LDV
model_yr 26 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
colimit 12 3.2 3.4 4.4 5 6.7 7 10 14.4 15 18 20 39
hclimit 8 0.25 0.41 0.8 1.18 1.5 1.7 2 3.4
fi_type 3 NOTFI PFI TBI
cat_type 4 3WAY NONE OX3W OXID
aspirated 2 CHARGED NATURAL
tran_type 2 AUTO MANUAL
repairs 2 A B
cohigh 2 0 1
hchigh 2 0 1
Number of observations 108413
NOTE: Due to missing values, only 50085 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-15
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 16
11:48 Monday, December 17, 2001
Dependent Variable: resid
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
57 2455.829119
50027 5891.976011
50084 8347.805130
Mean Square
43. 084721
0.117776
F Value
365.82
Pr > F
<.0001
R-Square
Coeff Var
Root MSE
resid Mean
0.294189
¦2748.098 0.
343185 -0.012488
Source
DF
Type I SS
Mean Square
F Value
Pr > F
gco s
1
139.9791217
139.9791217
1188.52
<.0001
gthc s
1
19.9600050
19.9600050
169.47
<.0001
tran type
1
898.5367731
898.5367731
7629.21
<.0001
model yr
24
259.8671214
10.8277967
91. 94
<.0001
zippy
1
790.1517528
790.1517528
6708.94
<.0001
fi type
2
70. 4281994
35.2140997
298.99
<.0001
aspirated
1
46.7692582
46.7692582
397.10
<.0001
repairs
1
35.3138859
35.3138859
299.84
<.0001
colimit
10
102.4557394
10.2455739
86. 99
<.0001
testwght
1
27.2681451
27.2681451
231.53
<.0001
cat type
3
19.1711064
6.3903688
54.26
<.0001
fedcat
5
16.9389240
3.3877848
28.76
<.0001
disp
1
16.9238736
16.9238736
143.70
<.0001
hchigh
1
1.0865919
1.0865919
9.23
0. 0024
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-16
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 17
11:48 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: resid
Source
DF
Type I SS
Mean Square
F Value
Pr > F
cohigh
1
5.1495559
5.1495559
43. 72
<.0001
odometer
1
4.1384280
4.1384280
35.14
<.0001
hclimit
2
1.6906370
0.8453185
7.18
0.0008
Source
DF
Type II SS
Mean Square
F Value
Pr > F
gco s
1
164.6633699
164.6633699
1398.11
<.0001
gthc s
1
4.3520016
4.3520016
36. 95
<.0001
tran type
1
167.6186467
167.6186467
1423.20
<.0001
model yr
23
78. 0722593
3.3944461
28. 82
<.0001
zippy
1
60.7161459
60.7161459
515.52
<.0001
fi type
2
31.2689090
15.6344545
132.75
<.0001
aspirated
1
40.9493470
40.9493470
347.69
<.0001
repairs
1
30.5356631
30.5356631
259.27
<.0001
colimit
6
28.5266898
4.7544483
40.37
<.0001
testwght
1
28. 0745501
28. 0745501
238.37
<.0001
cat type
3
21.9742425
7.3247475
62.19
<.0001
fedcat
5
21.2606669
4.2521334
36.10
<.0001
disp
1
16.6471110
16.6471110
141.35
<.0001
hchigh
1
5.9954383
5.9954383
50. 91
<.0001
cohigh
1
5.1319218
5.1319218
43. 57
<.0001
odometer
1
4.1528064
4.1528064
35.26
<.0001
hclimit
2
1.6906370
0.8453185
7.18
0.0008
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-17
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 18
11:48 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: resid
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
-1.408164259 B
0.13883057
1
1—1
o
1—1
<.0001
gco s
-0.507471718
0.01357193
-37.39
<.0001
gthc s
1.042424753
0.17148591
6.08
<.0001
tran type
AUTO
0.158127768 B
0.00419156
37.73
<.0001
tran type
MANUAL
0.000000000 B
model yr
1974
0.650178381 B
0.16036435
LO
O
<.0001
model yr
1975
0.130594508 B
0.10734480
1.22
0.2238
model yr
1976
0.657784412 B
0.09473181
6. 94
<.0001
model yr
1977
0.308767335 B
0.08423474
3. 67
0. 0002
model yr
1978
0.342008415 B
0.08392409
CO
o
<.0001
model yr
1979
0.195415323 B
0.08118260
2. 41
0.0161
model yr
1980
0.042642457 B
0.04141597
1—1
o
CO
0.3032
model yr
1981
0.005146699 B
0.03847028
o
1—1
CO
0. 8936
model yr
1982
0.017123262 B
0.03922463
0. 44
0.6624
model yr
1983
-0.024004246 B
0.03815016
-0. 63
0.5292
model yr
1984
0.003447282 B
0.03822315
o
o
0. 9281
model yr
1985
-0.034031980 B
0.03809397
1
o
CO
0.3717
model yr
1986
-0.107599869 B
0.03800522
1
K)
CO
CO
0. 0046
model yr
1987
-0.113730686 B
0.03799959
-2. 99
0. 0028
model yr
1988
-0.089306897 B
0.03792966
-2.35
0. 0185
model yr
1989
-0.072872583 B
0.03795890
-1. 92
0. 0549
model yr
1990
-0.083448634 B
0.03799067
1
K)
K)
O
0. 0281
model yr
1991
-0.045705087 B
0. 03840248
-1.19
0.2340
model yr
1992
-0.020009532 B
0.03923974
1
o
en
I—1
0.6101
model yr
1993
-0.003050793 B
0. 04085516
-0. 07
0.9405
model yr
1994
-0.134456139 B
0. 04126994
-3.26
0.0011
model yr
1995
-0.087101976 B
0.04444292
-1. 96
0.0500
model yr
1996
-0.049874201 B
0. 04406372
1
1—1
1—1
CO
0.2577
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-18
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 19
11:48 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: resid
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
model yr
1997
-0.046305093 B
0
04452029
-1. 04
0.2983
model yr
1998
0.000000000 B
zippy
1.226705510
0
05402770
22.71
<.0001
fi type
NOTFI
-0.010797360 B
0
00550593
-1. 96
0.0499
fi type
PFI
0.063614999 B
0
00420090
15.14
<.0001
fi type
TBI
0.000000000 B
aspirated
CHARGED
0.166980533 B
0
00895510
18. 65
<.0001
aspirated NATURAL
0.000000000 B
repairs
A
0.080629306 B
0
00500746
16.10
<.0001
repairs
B
0.000000000 B
colimit
3.2
0.481590610 B
0
14295657
3. 37
0.0008
colimit
3.4
0.287648551 B
0
12400990
2.32
0.0204
colimit
4.4
0.382336420 B
0
12300649
3.11
0. 0019
colimit
5
-1.546233303 B
0
17391587
-8. 89
<.0001
colimit
6.7
0.660082371 B
0
13534837
4. 88
<.0001
colimit
7
0.267366292 B
0
12404856
2.16
0.0311
colimit
10
0.119058816 B
0
11273402
1.06
0.2909
colimit
14. 4
-0.437116201 B
0
18878143
-2.32
0. 0206
colimit
15
-0.140942635 B
0
10070104
-1. 40
0.1616
colimit
18
0.019936394 B
0
11157189
0.18
0.8582
colimit
20
0.000000000 B
colimit
39
0.000000000 B
testwght
0. 000219304
0
00001420
15. 44
<.0001
cat type
3WAY
-0.048821156 B
0
00928781
-5.26
<.0001
cat type
NONE
0.036903656 B
0
03880854
0. 95
0.3417
cat type
OX3W
0.009438835 B
0
00899590
1. 05
0.2941
cat type
OXID
0.000000000 B
fedcat
Fed HDV
0.967290108 B
0
13403552
7.22
<.0001
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-19
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 20
11:48 Monday, December 17, 2001
The GLM Procedure
iriable: resid
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
fedcat
Fed LDT1
-0.161186667 B
0
05328349
1
CO
o
CO
0. 0025
fedcat
Fed LDT2
-0.300787740 B
0
07104620
-4.23
<.0001
fedcat
Fed LDT3
-0.056539798 B
0
05508795
-1. 03
0.3047
fedcat
Fed LDT4
1.602250194 B
0
16604437
9. 65
<.0001
fedcat
Fed LDV
0.000000000 B
disp
-0.184488208
0
01551770
1
1—1
1—1
CO
<.0001
hchigh
0
0.036422220 B
0
00510486
7.13
<.0001
hchigh
1
0.000000000 B
cohigh
0
-0.035270511 B
0
00534318
o
1
<.0001
cohigh
1
0.000000000 B
odometer
0.000000301
0
00000005
5. 94
<.0001
hclimit
0.25
-0.316673595 B
0
08358777
-3.79
0. 0002
hclimit
0. 41
-0.160694816 B
0
07091693
-2.27
0.0235
hclimit
0.8
0.000000000 B
hclimit
1—1
1—1
CO
0.000000000 B
hclimit
1.5
0.000000000 B
hclimit
1.7
0.000000000 B
hclimit
2
0.000000000 B
hclimit
3.4
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-20
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 21
11:48 Monday, December 17, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
50104
0
4.8292571
3.2001416
3.2000000
39.0000000
hclimit
50104
0
0.4976974
0.2643592
0.2500000
3.4000000
disp
50104
0
2. 8320837
1.1155468
0.9996722
7.5385120
testwght
50104
0
3235.64
583.3078620
1875.00
8800.00
road hp
50104
0
8.4510478
2.3734326
2.0000000
23.4000000
odometer
50104
0
61323.05
33841.66
294.0000000
241829.00
Pi
50104
0
0.3738880
0.0664243
0
0.5083333
p2
50104
0
0.0341279
0. 0241445
0
0.2081967
p3
50104
0
0.000222033
0. 0025684
0
0. 0415973
p4
50104
0
0.000068050
0.000905825
0
0.0149750
avgtotpower
50104
0
6.4065797
2.8485083
0.2568667
54.2476938
temp
50104
0
74.4591769
11.7183697
0
116.0000000
rvp
47671
2433
9.2191626
1.0158935
6.3000000
12.2000000
mpg
50093
11
22.5358242
6.0307806
2.2700000
99.9900000
co2
50104
0
408.1790822
167.4542834
14.8000000
3888.40
gco2
50103
1
1349.30
592.5191661
57.1193667
13963.35
gco2 s
50104
0
2.4451145
0. 8124581
0.0658816
27.7050643
ch4
32537
17567
0.0959133
0.1780697
-1.5300000
8.7500000
gch4
32536
17568
0.3179605
0.4371990
-5.9049075
19.1427067
mgch4 s
32537
17567
0.5349048
0.7261092
-6.8541176
26.5515278
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-21
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 22
11:48 Monday, December 17, 2001
The
FREQ Procedure
Cumulative
Cumulative
fueltype
Frequency
Percent
Frequency
Percent
GAS
50104
100.00
50104
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
104
0.21
104
0.21
Fed LDT1
4163
8.31
4267
8.52
Fed LDT2
330
0. 66
4597
9.17
Fed LDT3
568
1.13
5165
10.31
Fed LDT4
15
0. 03
5180
10.34
Fed LDV
44924
89. 66
50104
100.00
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-22
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 23
11:48 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
1974
18
o
o
18
o
o
1975
33
0. 07
51
0.10
1976
54
0.11
105
0.21
1977
394
0.79
499
1. 00
1978
450
0. 90
949
1. 89
1979
656
1.31
1605
3.20
1980
804
1. 60
2409
4. 81
1981
5258
10. 49
7667
15.30
1982
1983
3.96
9650
19.26
1983
3527
7. 04
13177
26. 30
1984
3397
6.78
16574
CO
CO
o
CO
1985
4616
9.21
21190
42.29
1986
5548
11. 07
26738
53. 37
1987
5328
10. 63
32066
o
o
1988
5448
10. 87
37514
74. 87
1989
4250
8. 48
41764
CO
CO
CO
cn
1990
3633
7.25
45397
90. 61
1991
1815
3. 62
47212
94.23
1992
894
1.78
48106
96.01
1993
460
0. 92
48566
96. 93
1994
417
0. 83
48983
97.76
1995
265
0.53
49248
98.29
1996
374
0.75
49622
99. 04
1997
398
0.79
50020
99. 83
1998
84
0.17
50104
100.00
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-23
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 24
11:48 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
NOTFI
14722
K)
CO
CO
14722
K)
CO
CO
PFI
21052
42. 02
35774
71. 40
TBI
14330
28. 60
50104
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
30043
59.96
30043
59.96
NONE
105
0.21
30148
60.17
OX3W
15400
30.74
45548
90. 91
OXID
4556
9.09
50104
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
2
28
0.06
28
0.06
3
89
0.18
117
0.23
4
28083
56. 05
28200
56.28
5
93
0.19
28293
56. 47
6
15361
30. 66
43654
87.13
8
6450
12. 87
50104
100.00
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-24
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 25
11:48 Monday, December 17, 2001
The FREQ Procedure
aspirated Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
NATURAL
1728
48376
3. 45
96. 55
1728
50104
3. 45
100.00
tran_type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
36840
13264
73. 53
26. 47
36840
50104
73. 53
100.00
repairs
A
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
5714
44390
11. 40
88. 60
5714
50104
11. 40
100.00
cohigh Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
38741
11363
77.32
22. 68
38741
50104
77.32
100.00
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-25
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 2 6
11:48 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
0 36786 73.42 36786 73.42
1 13318 26.58 50104 100.00
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-26
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 27
11:48 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
40 MPH
1
o
o
o
1
o
o
o
ART-EF
38
0. 08
39
0. 08
CAART1
51
0.10
90
0.18
CAART2
52
0.10
142
0.28
CAART3
53
0.11
195
0.39
CACYC1
50
0.10
245
0. 49
CACYC2
51
0.10
296
0.59
CACYC3
50
0.10
346
0. 69
CACYC4
53
0.11
399
0. 80
CACYC5
54
0.11
453
0. 90
CACYC6
52
0.10
505
1. 01
CACYC7
52
0.10
557
1.11
CDH22 6
93
0.19
650
1.30
F505
127
0.25
777
1.55
FTP bnl
12537
25. 02
13314
26. 57
FTP bn2
12537
25. 02
25851
51.59
FTP bn3
12537
25. 02
38388
7 6. 62
FWY-AC
38
0. 08
38426
76. 69
FWY-D
3
0. 01
38429
76.70
FWY-F
38
0. 08
38467
76. 77
FWY-G
3
0. 01
38470
76.78
FWY-HI
38
0. 08
38508
76.86
HWFET
57
0.11
38565
76. 97
IM240
6761
13. 49
45326
90. 46
LA92
38
0. 08
45364
90.54
LSP1
521
1. 04
45885
91.58
LSP2
523
1. 04
46408
92. 62
LSP3
523
1. 04
46931
93. 67
NYCC
92
0.18
47023
93. 85
RAMP
3
0. 01
47026
93. 86
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-27
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 28
11:48 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
SC03
5
o
o
1—1
47031
93. 87
SCC12
1356
2.71
48387
96. 57
SCC36
1356
2.71
49743
99.28
ST01
86
0.17
49829
99. 45
UNCFTP
103
0.21
49932
99.66
US0 6
172
0.34
50104
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
49637
99. 07
49637
99. 07
R
87
0.17
49724
99.24
S
380
0.76
50104
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
24944
49.78
24944
49.78
GE60
12583
25.11
37527
74. 90
LT60
12577
25.10
50104
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0 49912 99.62 49912 99.62
1 192 0.38 50104 100.00
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-28
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 29
11:48 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
tempcat Frequency Percent Frequency Percent
-15
1057
2.11
1057
2.11
-5
3
0. 01
1060
2.12
5
3
0. 01
1063
2.12
25
47723
95.25
48786
97.37
35
910
1. 82
49696
99.19
45
408
0. 81
50104
100.00
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
6807
13. 59
6807
13. 59
L
43297
86.41
50104
100.00
Cumulative
Cumulative
rvpind
Frequency
Percent
Frequency
Percent
2433
4.86
2433
4.86
6
156
0.31
2589
5.17
7
1163
2.32
3752
7. 49
8
2216
4. 42
5968
11. 91
9
37650
75.14
43618
87. 05
10
24
0. 05
43642
87.10
11
1062
2.12
44704
89.22
12
5400
10.78
50104
100.00
/camwheels/cam/epaco2ch4/vclco2gas. sas
A4-29
-------
All cycles, All operating conditions, with gCO/s and gTHC/s 30
11:48 Monday, December 17, 2001
The FREQ Procedure
oxygenate
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
EtOH
MTBE
MeOH_EtOH
MeOH_TBA
None
2589
3001
4680
69
6
39759
5.17
5. 99
9. 34
0.14
0. 01
79. 35
2589
5590
10270
10339
10345
50104
5.17
11.16
20.50
20. 64
20. 65
100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
O 7912 15.79 7912 15.79
R 39759 79.35 47671 95.14
U 2433 4.86 50104 100.00
/camwheels/cam/epaco2ch4/vclco2gas.sas
A4-30
-------
Appendix B1
Dependence of gC02/s for Diesel Vehicles on Vehicle Characteristics
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 1
The GLM Procedure
Number of observations 302
NOTE: Due to missing values, only 218 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-1
-------
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
HDSS Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 2
Sum of
DF Squares
1 525.786248
216 950.668945
217 1476.455193
Mean Square F Value Pr > F
525.786248 119.46 <.0001
4. 401245
R-Square Coeff Var Root MSE gco2_s Mean
0.356114 20.01696 2.097914 10.48068
Source
avgtotpower
DF
1
Type I SS
525.7862475
Mean Square
525.7862475
F Value
119.46
Pr > F
<.0001
Source
avgtotpower
DF Type II SS
1 525.7862475
Mean Square
525.7862475
F Value
119.46
Pr > F
<.0001
Parameter
Intercept
avgtotpower
Estimate
7.236422858
0.083363169
Standard
Error
0.32908003
0. 00762706
t Value
21. 99
10. 93
Pr > |t|
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-2
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 3
The GLM Procedure
Number of observations 302
NOTE: Due to missing values, only 220 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-3
-------
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
HDSS Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 4
Sum of
DF Squares
3 276.522536
216 1200.110447
219 1476.632984
Mean Square F Value Pr > F
92.174179 16.59 <.0001
5.556067
R-Square
0.187266
Coeff Var
22.48614
Root MSE
2.357131
gco2_s Mean
10.48260
Source
Pi
p2
p3
p4
DF Type I SS
1 38.9084953
1 231.7562013
1 5.8578398
0 0.0000000
Mean Square
38.9084953
231.7562013
5.8578398
F Value
7. 00
41.71
1. 05
Pr > F
0. 0087
<.0001
0.3057
Source
Pi
p2
p3
p4
DF
1
1
1
0
Type II SS
77.31511922
0.23500490
5.85783977
0.00000000
Mean Square
77.31511922
0.23500490
5.85783977
F Value
13. 92
0. 04
1. 05
Pr > F
0. 0002
0.8372
0.3057
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-4
-------
HDSS Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001
Dependent Variable: gco2 s
Parameter
Intercept
Pi
p2
p3
p4
Estimate
3.808066
22.974596
-26.495738
1553.773121
0.000000
Standard
Error
1.657782
6.158847
128.831269
1513.221812
t Value
2.30
3. 73
-0.21
1. 03
Pr > |t|
0. 0226
0. 0002
0.8372
0.3057
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-5
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 6
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 6 ART CBD NYBUS NYGTC TRKCBD UDDS_D
Number of observations 302
NOTE: Due to missing values, only 218 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-6
-------
HDSS Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 7
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
Sum of
DF Squares
6 677.211818
211 799.243374
217 1476.455193
Mean Square F Value Pr > F
112.868636 29.80 <.0001
3.787883
R-Square
0.458674
Coeff Var
18.56986
Root MSE
1.946249
gco2_s Mean
10.48068
Source
avgtotpower
sched id
DF
1
5
Type I SS
525.7862475
151.4255707
Mean Square
525.7862475
30.2851141
F Value
138.81
8. 00
Pr > F
<.0001
<.0001
Source
avgtotpower
sched id
DF Type II SS
1 272.4713058
5 151.4255707
Mean Square
272.4713058
30.2851141
F Value
71. 93
8. 00
Pr > F
<.0001
<.0001
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
avgtotpower
4.580691331 B
0.116910943
0. 88209545
0.01378457
5.19
8. 48
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-7
-------
HDSS Diesel Data Only
13:53 Friday, December 7, 2001
Dependent Variable: gco2 s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched_id
sched_id
sched_id
sched_id
sched_id
sched id
ART
CBD
NYBUS
NYGTC
TRKCBD
UDDS D
5.866354094 B
1.986998028 B
-0.282089048 B
-0.437167781 B
-0.103060842 B
0.000000000 B
1.39870768
0.53791275
1.54108290
1.60023678
2.03585153
4.19
3. 69
-0.18
-0.27
-0. 05
<.0001
0.0003
0.8549
0.7850
0.9597
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-8
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Number of observations 302
NOTE: Due to missing values, only 218 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-9
-------
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
HDSS Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 10
Sum of
DF Squares
4 647.285196
213 829.169997
217 1476.455193
Mean Square F Value Pr > F
161.821299 41.57 <.0001
3.892817
R-Square
0.438405
Coeff Var
18.82532
Root MSE
1.973022
gco2_s Mean
10.48068
Source
avgtotpower
Pi
p2
p3
p4
DF
1
1
1
1
0
Type I SS
525.7862475
60.3780340
60.5384732
0.5824412
0.0000000
Mean Square
525.7862475
60.3780340
60.5384732
0.5824412
F Value
135.07
15.51
15.55
0.15
Pr > F
<.0001
0.0001
0.0001
0.6993
Source
avgtotpower
Pi
p2
p3
p4
DF
1
1
1
1
0
Type II SS
369.6320186
8.5821911
1. 0836554
0.5824412
0.0000000
Mean Square
369.6320186
8.5821911
1.0836554
0.5824412
F Value
94. 95
2.20
0.28
0.15
Pr > F
<.0001
0.1391
0.5983
0.6993
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-10
-------
HDSS Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001
Dependent Variable: gco2 s
Parameter
Intercept
avgtotpower
Pi
p2
p3
p4
Estimate
4.0848531
0.1291486
7.9886309
-56.9272773
-496.6371105
0.0000000
Standard
Error
1.388211
0.013254
5.380285
107.896362
1283.941100
t Value
2. 94
9.74
1. 48
-0.53
-0.39
Pr > |t|
0. 0036
<.0001
0.1391
0.5983
0.6993
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
B1 -11
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 12
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 6 ART CBD NYBUS NYGTC TRKCBD UDDS_D
model_yr 18 1976 1977 1978 1979 1980 1981 1982 1984 1985 1987 1988 1989 1990 1991 1992 1993
1994 1996
Number of observations 302
NOTE: Due to missing values, only 218 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-12
-------
HDSS Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 13
Dependent Variable: gco2 s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
25
930.250159
37.210006
1—1
CO
o
CO
<.0001
Error
192
546.205034
2. 844818
Corrected Total
217
1476.455193
R-Square
Coeff Var Root
MSE gco2 s
Mean
0.630056
16.
09302 1.686659 10.
48068
Source
DF
Type I SS
Mean Square
F Value
Pr > F
avgtotpower
1
525.7862475
525.7862475
184. 82
<.0001
sched id
5
151.4255707
30.2851141
10. 65
<.0001
model yr
17
252.1621256
14.8330662
5.21
<.0001
testwght
1
0.8594408
0. 8594408
0.30
0.5832
road hp
1
0.0167740
0. 0167740
o
o
1—1
0.9389
Source
DF
Type II SS
Mean Square
F Value
Pr > F
avgtotpower
1
2.3781235
2.3781235
CO
o
0.3617
sched id
5
58.2774756
11.6554951
4.10
0. 0015
model yr
17
238.5626719
14.0330983
CO
<.0001
testwght
1
0.1971440
0.1971440
0. 07
0.7926
road hp
1
0.0167740
0.0167740
O
o
1—1
0.9389
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-13
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 14
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
4.200601305 B
2. 03524031
2.06
0.0404
avgtotpower
0.076746744
0. 08394020
0. 91
0.3617
sched id
ART
5.624330960 B
2.36186772
2.38
0. 0182
sched id
CBD
0.564849784 B
1.81877818
0.31
0.7565
sched id
NYBUS
-2.103240880 B
3.00999368
-0.70
0. 4856
sched id
NYGTC
-3.345719042 B
4.44886531
-0.75
0. 4529
sched id
TRKCBD
-4.086410044 B
3.41691654
1
1—1
K)
O
0.2332
sched id
UDDS D
0.000000000 B
model yr
1976
0.824681854 B
1. 43366236
0.58
0.5658
model yr
1977
2.390083050 B
1.12485018
2.12
0.0349
model yr
1978
1.387033810 B
1.40997897
0. 98
0.3265
model yr
1979
0.369611999 B
0.83975316
0. 44
0.6603
model yr
1980
0.750348381 B
0.91531338
0. 82
0.4134
model yr
1981
0.035529129 B
0.78376985
LO
O
o
0.9639
model yr
1982
0.626293067 B
1.00620109
0. 62
0.5344
model yr
1984
4.200696412 B
1.73619463
2. 42
0.0165
model yr
1985
-0.071484444 B
1.79233837
o
o
1
0.9682
model yr
1987
1.465166144 B
1.23674320
i—1
i—1
CO
0.2376
model yr
1988
1.869298628 B
0. 47226828
3.96
0.0001
model yr
1989
1.709059335 B
0.64547063
2. 65
0.0088
model yr
1990
2.296345548 B
0.53168087
4.32
<.0001
model yr
1991
3.189670072 B
0.54282795
CO
CO
LO
<.0001
model yr
1992
-0.223851213 B
0.49610637
LO
o
1
0.6523
model yr
1993
3.759615742 B
1.02420246
3. 67
0.0003
model yr
1994
1.435957543 B
0.50031965
2. 87
0.0046
model yr
1996
0.000000000 B
testwght
0.000038811
0.00014743
0.26
0.7926
road hp
0.004451252
0.05796835
CO
o
o
0.9389
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-14
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-15
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 16
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 5 ART CBD NYBUS TRKCBD UDDS_D
model_yr 12 1977 1979 1980 1981 1988 1989 1990 1991 1992 1993 1994 1996
cylinder 3 4 6 8
fedcat 1 Fed_HDV
aspirated 3 CHARGED SUPER TURBO
colimitcat 3 D_15.5 D_25 D_65
hclimitcat 3 D_1.3 D_1.5 D_None
cohigh 1 0
hchigh 1 0
Number of observations 302
NOTE: Due to missing values, only 74 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-16
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 17
The GLM Procedure
Dependent Variable: gco2_s
Sum of
Source
DF
Squares
Mean Square F Value
Pr > F
Model
24
568.8767804
23.7031992 13.93
<.0001
Error
49
83.3798195
1.7016290
Corrected Total
73
652.2565999
R-Square
Coeff Var Root
MSE gco2 s Mean
0.872167
11.
.52773 1.304465 11.31589
Source
DF
Type I SS
Mean Square F Value
Pr > F
avgtotpower
1
207. 4901992
207.4901992 121.94
<.0001
sched id
4
78.8692496
19.7173124 11.59
<.0001
model yr
11
129.1269880
11.7388171 6.90
<.0001
odometer
1
9. 8854250
9.8854250 5.81
0.0197
disp
1
8.1184139
8.1184139 4.77
0.0338
cylinder
2
44.6419900
22.3209950 13.12
<.0001
aspirated
1
74.2635965
74.2635965 43.64
<.0001
testwght
1
14.6600236
14.6600236 8.62
0. 0051
road hp
1
1.4654648
1.4654648 0.86
0.3579
zippy
1
0.3554298
0.3554298 0.21
0.6497
fedcat
0
0.0000000
hchigh
0
0.0000000
colimitcat
0
0.0000000
hclimitcat
0
0.0000000
cohigh
0
0.0000000
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-17
-------
HDSS Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 18
Dependent Variable: gco2_s
Source
DF Type II SS
Mean Square
F Value
Pr > F
avgtotpower
1 0.
3426326
0.3426326
0.20
0.6556
sched id
4 31.
8796855
7.9699214
4. 68
0. 0028
model yr
9 117.
2044099
13.0227122
7. 65
<.0001
odometer
1 1.
8140101
1.8140101
1. 07
0.3069
disp
1 4.
6845844
4.6845844
2.75
0.1035
cylinder
2 24.
9151044
12.4575522
7.32
0. 0017
aspirated
1 12.
3507286
12.3507286
7.26
0.0096
testwght
1 0.
4392770
0. 4392770
0.26
0.6137
road hp
1 0.
1234001
0.1234001
0. 07
0.7888
zippy
1 0.
3554298
0.3554298
0.21
0.6497
fedcat
0 0.
0000000
hchigh
0 0.
0000000
colimitcat
0 0.
0000000
hclimitcat
0 0.
0000000
cohigh
0 0.
0000000
Standard
Parameter
Estimate
Error t
Value
Pr
> 111
Intercept
52.57848894
B
38.2050629
1.38
0.1750
avgtotpower
0. 40591033
0.9045825
0. 45
0.6556
sched id
ART
-3.39440230
B
20.6616436
\—1
o
1
0.8702
sched id
CBD
6.63824072
B
17.4681749
0.38
0.7056
sched id
NYBUS
8.84289951
B
28.6406715
0.31
0.7588
sched id
TRKCBD
4.02580844
B
29.6100995
0.14
0.8924
sched id
UDDS D
0.00000000
B
model yr
1977
-12.77204810
B
5.7397971
1
K)
K)
CO
0.0307
model yr
1979
-9.14499964
B
2.2608764
o
1
0. 0002
model yr
1980
-11.09746153
B
2. 4353922
LO
I
<.0001
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-18
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 19
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr
> 111
model yr
1981
-14.56764810 B
5. 8206512
1
K)
Cn
O
0
. 0157
model yr
1988
2.51102988 B
1.6123031
1.56
0
. 1258
model yr
1989
1.33826751 B
1.7546530
0.76
0
. 4493
model yr
1990
3.62183973 B
1.7970270
2. 02
0
. 0494
model yr
1991
7.35569408 B
1.7733626
4.15
0
. 0001
model yr
1992
5.965 69866 B
1.8618965
3.20
0
. 0024
model yr
1993
4.17843219 B
1.8700898
2.23
0
. 0301
model yr
1994
2.10062072 B
1.0006959
2.10
0
. 0410
model yr
1996
0.00000000 B
odometer
-0.00000388
0.0000038
1
1—1
o
CO
0
. 3069
disp
-7.58495207
4.5714055
-1. 66
0
. 1035
cylinder
4
-20.92647750 B
5.8035296
-3. 61
0
. 0007
cylinder
6
-17.28964137 B
5.5224797
1
CO
1—1
CO
0
. 0029
cylinder
8
0.00000000 B
aspirated
CHARGED
13.01176375 B
4. 8297240
2. 69
0
. 0096
aspirated
SUPER
0.00000000 B
aspirated
TURBO
0.00000000 B
testwght
-0.00035540
0.0006995
1
o
cn
I—1
0
. 6137
road hp
0.21617929
0.8027656
0.27
0
. 7888
zippy
71.62867211
156.7264961
0.46
0
. 6497
fedcat
Fed HDV
0.00000000 B
hchigh
0
0.00000000 B
colimitcat
D 15.5
0.00000000 B
colimitcat
D 25
0.00000000 B
colimitcat
D 65
0.00000000 B
hclimitcat
D 1.3
0.00000000 B
hclimitcat
D 1.5
0.00000000 B
hclimitcat
D None
0.00000000 B
cohigh
0"
0.00000000 B
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-19
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-20
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 21
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 6 ART CBD NYBUS NYGTC TRKCBD UDDS_D
model_yr 18 1976 1977 1978 1979 1980 1981 1982 1984 1985 1987 1988 1989 1990 1991 1992 1993
1994 1996
Number of observations 302
NOTE: Due to missing values, only 218 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-21
-------
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
HDSS Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 22
Sum of
DF Squares
23 929.373944
194 547.081249
217 1476.455193
Mean Square F Value Pr > F
40.407563 14.33 <.0001
2.820006
R-Square
0.629463
Coeff Var
16.02269
Root MSE
1.679287
gco2_s Mean
10.48068
Source
avgtotpower
sched_id
model yr
DF Type I SS
1 525.7862475
5 151.4255707
17 252.1621256
Mean Square
525.7862475
30.2851141
14. 8330662
F Value
186.45
10.74
5.26
Pr > F
<.0001
<.0001
<.0001
Source
avgtotpower
sched_id
model yr
DF Type II SS
1 184.7856498
5 67.2764276
17 252.1621256
Mean Square
184.7856498
13.4552855
14. 8330662
F Value
65.53
4.77
5.26
Pr > F
<.0001
0.0004
<.0001
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-22
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 23
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
3.887951969 B
1.09133052
3.56
0. 0005
avgtotpower
0.119390208
0.01474890
8. 09
<.0001
sched id
ART
4.641829348 B
1.39399134
3. 33
0.0010
sched id
CBD
1.421187178 B
0.76655609
1. 85
0.0653
sched id
NYBUS
-0.755546330 B
1.49636357
o
LO
o
1
0.6142
sched id
NYGTC
-1.195750382 B
1.60513285
-0.74
0.4572
sched id
TRKCBD
-2.620834341 B
1.91906812
-1.37
0.1736
sched id
UDDS D
0.000000000 B
model yr
1976
0.687256952 B
1.40571613
0. 49
0.6255
model yr
1977
2.360142747 B
1.11857027
2.11
0.0361
model yr
1978
1.368296758 B
1.40263642
0. 98
0.3305
model yr
1979
0.287494991 B
0.81951334
0.35
0.7261
model yr
1980
0.618759333 B
0.86193505
0.72
0.4737
model yr
1981
-0.057367796 B
0.76182689
CO
o
o
1
0.9401
model yr
1982
0.501100725 B
0.97615882
0.51
0.6083
model yr
1984
4.066890842 B
1.71180769
2.38
0.0185
model yr
1985
0.146273764 B
1.71742884
o
o
0.9322
model yr
1987
1.424521066 B
1.22898361
1.16
0.2478
model yr
1988
1.848805846 B
0.46853604
3. 95
0.0001
model yr
1989
1.650461340 B
0.63391504
2. 60
0.0099
model yr
1990
2.261244655 B
0.52534091
4.30
<.0001
model yr
1991
3.156338753 B
0.53675034
CO
CO
LO
<.0001
model yr
1992
-0.325722354 B
0.45441699
-0.72
0.4744
model yr
1993
3.756163792 B
1.01960425
3. 68
0.0003
model yr
1994
1.439056050 B
0.49804347
2. 89
0.0043
model yr
1996
0.000000000 B
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-23
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-24
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
218
0
53.6155474
34.7632746
20.6693639
246.1273125
hclimit
218
0
976.3609743
5154.14
1.7335595
37861.95
disp
156
62
9. 0988925
0.9380462
6.9813176
12.0616191
testwght
218
0
38565.99
10270.06
16000.00
75500.00
road hp
218
0
87.3270460
16.8443891
42.2426704
132.5727389
odometer
198
20
103351.71
86376.10
1063.00
478737.00
Pi
218
0
0.2592746
0.0312374
0.1116667
0.5046838
p2
218
0
0.0071934
0.0105085
0
0.0226202
p3
218
0
0.000587986
0.000875299
0
0.0018850
p4
218
0
0
0
0
0
avgtotpower
218
0
38.9172003
18.6724165
4.9473991
92.6001332
temp
0
218
rvp
0
218
mpg
218
0
3.9993119
0.9904265
1.3200000
7.6900000
co2
218
0
2701.64
833.9702321
1303.51
7690.26
gco2
218
0
7727.38
3627.86
2613.47
17349.26
gco2 s
218
0
10. 4806840
2.6084365
4.4674645
21.3937034
ch4
0
218
gch4
0
218
mgch4 s
0
218
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-25
-------
HDSS Diesel Data Only
The FREQ Procedure
13:53 Friday, December 7, 2001 26
fueltype
DIES
Frequency
218
Percent
100.00
Cumulative
Frequency
218
Cumulative
Percent
100.00
fedcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
Fed HDV
19
199
8.72
91.28
19
218
8.72
100.00
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-26
-------
l_yr
1976
1977
1978
1979
1980
1981
1982
1984
1985
1987
1988
1989
1990
1991
1992
1993
1994
1996
type
type
HDSS Diesel Data Only
The FREQ Procedure
13:53 Friday, December 7, 2001 27
Frequency
Percent
Cumulative
Frequency
2
4
2
18
18
18
5
1
1
2
24
10
16
16
28
3
21
29
0. 92
1. 83
0. 92
8.26
8.26
8.26
2.29
0.46
0.46
0. 92
11. 01
4.59
7.34
7.34
12. 84
1.38
9. 63
13. 30
2
6
8
26
44
62
67
68
69
71
95
105
121
137
165
168
189
218
Cumulative
Percent
0. 92
2.75
3. 67
11. 93
20.18
28. 44
30.73
31.19
31. 65
32.57
43. 58
48.17
55.50
62. 84
75. 69
77. 06
86.70
100.00
Frequency
218
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
218
100.00
Frequency
218
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
218
100.00
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-27
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 28
The FREQ Procedure
Cumulative Cumulative
cylinder Frequency Percent Frequency Percent
62
K)
CO
d^
d^
62
K)
CO
d^
d^
4
35
16.06
97
44.50
6
113
51. 83
210
96. 33
8
8
3. 67
218
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
62
28. 44
62
28. 44
CHARGED
18
8.26
80
36.70
SUPER
3
1.38
83
38. 07
TURBO
135
61. 93
218
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
218
100.00
218
100.00
Cumulative
Cumulative
repairs
Frequency
Percent
Frequency
Percent
218
100.00
218
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-28
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 29
The FREQ Procedure
Cumulative Cumulative
cohigh Frequency Percent Frequency Percent
0
218
100.00
218
100.00
Cumulative
Cumulative
hchigh
Frequency
Percent
Frequency
Percent
62
K)
CO
d^
d^
62
K)
CO
d^
d^
0
156
71.56
218
100.00
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
ART
2
0. 92
2
0. 92
CBD
143
o
LO
145
66. 51
NYBUS
2
0. 92
147
67. 43
NYGTC
2
0. 92
149
68.35
TRKCBD
1
0.46
150
68. 81
UDDS D
68
CO
1—1
1—1
218
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
218
100.00
218
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-29
-------
HDSS Diesel Data Only
The FREQ Procedure
13:53 Friday, December 7, 2001 30
soakcat
Frequency
218
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
218
100.00
Cumulative Cumulative
aeon Frequency Percent Frequency Percent
0
218
100.00
218
100.00
tempcat
Frequency
218
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
218
100.00
altcat
L
Frequency
218
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
218
100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
218
100.00
218
100.00
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-30
-------
HDSS Diesel Data Only 13:53 Friday, December 7, 2001 31
The FREQ Procedure
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 218 100.00 218 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 218 100.00 218 100.00
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-31
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Number of observations 955
NOTE: Due to missing values, only 860 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-32
-------
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
MSOD Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 33
Sum of
DF Squares
1 8690.73227
858 2537.06007
859 11227.79235
Mean Square F Value Pr > F
8690.73227 2939.09 <.0001
2.95695
R-Square Coeff Var Root MSE gco2_s Mean
0.774037 26.23577 1.719577 6.554324
Source
avgtotpower
DF
1
Type I SS
8690.732273
Mean Square
8690.732273
F Value
2939.09
Pr > F
<.0001
Source
avgtotpower
DF Type II SS
1 8690.732273
Mean Square
8690.732273
F Value
2939.09
Pr > F
<.0001
Parameter
Intercept
avgtotpower
Estimate
1.855138877
0.194015704
Standard
Error
0.10465006
0.00357874
t Value
17.73
54.21
Pr > |t|
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-33
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Number of observations 955
NOTE: Due to missing values, only 947 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-34
-------
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
MSOD Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 35
Sum of
DF Squares
4 5704.95115
942 6972.00982
946 12676.96097
Mean Square F Value Pr > F
1426.23779 192.70 <.0001
7.40128
R-Square
0. 450025
Coeff Var
44.09742
Root MSE
2.720530
gco2_s Mean
6.169364
Source
Pi
p2
p3
p4
DF
1
1
1
1
Type I SS
4520.774220
247.814050
538.299199
398.063678
Mean Square
4520.774220
247.814050
538.299199
398.063678
F Value
610.81
33. 48
72.73
53. 78
Pr > F
<.0001
<.0001
<.0001
<.0001
Source
Pi
p2
p3
p4
DF
1
1
1
1
Type II SS
3786.778155
1101.681511
668.863434
398.063678
Mean Square
3786.778155
1101.681511
668.863434
398.063678
F Value
511.64
148.85
90.37
53. 78
Pr > F
<.0001
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-35
-------
MSOD Diesel Data Only
13:53 Friday, December 7, 2001 36
The GLM Procedure
Dependent Variable: gco2_s
Parameter
Intercept
Pi
p2
p3
p4
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-36
Estimate
Standard
Error
t Value
Pr > |t|
11.470661
-17.782485
-38.019625
567.652876
-1111.034859
0.2475357
0.7861602
3.1162575
59.7128306
151. 4973210
46. 34
-22.62
-12.20
9.51
-7.33
<.0001
<.0001
<.0001
<.0001
<.0001
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 37
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 23 20_40 20_MPH 30_MPH 40_MPH 5PEAK ART-CD CBD FTP FTP_bnl FTP_bn2 FTP_bn3 FWY-E
FWY-G FWY-HI IM240 LA92 NYCC SC03 SCC12 ST01 UDDS_D US06 WVUCBD
Number of observations 955
NOTE: Due to missing values, only 860 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-37
-------
MSOD Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 38
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
Sum of
DF Squares
23 10106.42428
836 1121.36806
859 11227.79235
Mean Square F Value Pr > F
439.40975 327.59 <.0001
1.34135
R-Square
0.900126
Coeff Var
17.67026
Root MSE
1.158166
gco2_s Mean
6.554324
Source
avgtotpower
sched id
DF
1
22
Type I SS
8690.732273
1415.692009
Mean Square
8690.732273
64.349637
F Value
6479.10
47. 97
Pr > F
<.0001
<.0001
Source
avgtotpower
sched id
DF
1
22
Type II SS
1939.816757
1415.692009
Mean Square
1939.816757
64.349637
F Value
1446.17
47. 97
Pr > F
<.0001
<.0001
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
avgtotpower
2.925813986 B
0.167557138
0. 82057511
0. 00440609
3. 57
38. 03
0.0004
<.0001
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-38
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2 s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched
id
20 40
1.617379861 B
1.05805365
1.53
0.1267
sched
id
20 MPH
1.608106693 B
0.84340988
1. 91
0.0569
sched
id
30 MPH
2.177087391 B
1.41928408
1.53
0.1254
sched
id
40 MPH
3.349665532 B
0.85259864
3. 93
<.0001
sched
id
5 PEAK
0.680450633 B
0. 82784716
0. 82
0.4113
sched
id
ART-CD
-1.737894409 B
0.83933063
-2. 07
0.0387
sched
id
CBD
2.760414251 B
0.85625417
3.22
0. 0013
sched
id
FTP
-1.333530600 B
0.83550050
-1. 60
0.1108
sched
id
FTP bnl
-0.795112321 B
0.83555606
-0. 95
0.3416
sched
id
FTP bn2
-1.538269801 B
0.83571533
-1. 84
0.0660
sched
id
FTP bn3
-1.477298106 B
0.83555606
-1.77
0.0774
sched
id
FWY-E
-2.039291976 B
0.86407227
-2.36
0. 0185
sched
id
FWY-G
-1.667426575 B
0.86338281
-1. 93
0.0538
sched
id
FWY-HI
-2.082189587 B
0.85266837
-2. 44
0.0148
sched
id
IM240
-1.581981718 B
0.96909735
-1. 63
0.1030
sched
id
LA92
-1.501937133 B
0. 88485229
-1.70
0.0900
sched
id
NYCC
-1.385910333 B
0. 84249311
-1. 65
0.1003
sched
id
SC03
-1.125619125 B
0.96901418
-1.16
0.2457
sched
id
SCC12
-1.830950974 B
1.41882772
-1.29
0.1972
sched
id
ST01
-1.078270049 B
0.83094186
-1.30
0.1948
sched
id
UDDS D
-0.323283484 B
0.83400912
-0.39
0.6984
sched
id
US0 6
-1.050426284 B
0.86360098
-1.22
0.2242
sched
id
WVUCBD
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-39
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Number of observations 955
NOTE: Due to missing values, only 860 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-40
-------
MSOD Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 41
Dependent Variable: gco2_s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
5
9777
.77307
1955.55461
1151.74
<.0001
Error
854
1450
.01928
1.69791
Corrected Total
859
11227
.79235
R-Square
Coeff Var
Root
MSE gco2 s
Mean
0. 870854
19.
, 88063
1.303041 6.554324
Source
DF
Type I SS
Mean Square
F Value
Pr > F
avgtotpower
1
8690.
732273
8690.732273
5118.47
<.0001
Pi
1
445.
469415
445.469415
262.36
<.0001
p2
1
615.
893697
615.893697
362.74
<.0001
p3
1
25.
407054
25.407054
14. 96
0.0001
p4
1
0.
270628
0.270628
0.16
0.6898
Source
DF
Type
II SS
Mean Square
F Value
Pr > F
avgtotpower
1
5108.
715337
5108.715337
3008.82
<.0001
Pi
1
552.
600258
552.600258
325.46
<.0001
p2
1
376.
207627
376.207627
221.57
<.0001
p3
1
3.
745759
3.745759
2.21
0.1378
p4
1
0.
270628
0.270628
0.16
0.6898
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-41
-------
MSOD Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 42
Dependent Variable: gco2_s
Parameter
Intercept
avgtotpower
Pi
p2
p3
p4
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-42
Estimate
Standard
Error
t Value
Pr > |t|
4.90931278
0.17647267
-7.60691715
-23.24589680
45.32711439
-30.23957143
0.16770801
0.00321721
0.42165873
1.56167429
30.51729978
75.74386751
29.27
54. 85
-18.04
-14.89
1. 49
-0. 40
<.0001
<.0001
<.0001
<.0001
0.1378
0.6898
-------
Class
sched_id
model_yr
cylinder
repairs
fedcat
cat_type
aspirated
tran_type
colimitcat
hclimitcat
cohigh
hchigh
MSOD Diesel Data Only
The GLM Procedure
Class Level Information
13:53 Friday, December 7, 2001 43
Levels Values
16 ART-CD CBD FTP FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 NYCC SC03 SCC12
ST01 UDDS_D USO6
9 1969 1980 1982 1991 1995 1997 1998 1999 2000
2 6 8
2 A B
3 Fed_HDV Fed_LDT4 Fed_LDV
2 NONE OXID
3 CHARGED NATURAL TURBO
2 AUTO MANUAL
5 D_10 D_15.5 D_3.4 D_7 D_None
4 D_0.41 D_0.8 D_1.3 D_None
1 0
2 0 1
Number of observations 955
NOTE: Due to missing values, only 289 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-43
-------
MSOD Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 44
Dependent Variable: gco2_s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
33
1327.226204
40.218976
322. 47
<.0001
Error
255
31.804353
0.124723
Corrected Total
288
1359.030558
R-Square
Coeff Var Root
MSE gco2 s
Mean
0. 976598
7.
,809881 0.353161 4.521981
Source
DF
Type I SS
Mean Square
F Value
Pr > F
avgtotpower
1
1235.195188
1235.195188
9903.51
<.0001
sched id
15
53.289696
3.552646
K)
CO
CO
<.0001
model yr
7
14.809576
2.115654
16.96
<.0001
odometer
1
5.813090
5.813090
46. 61
<.0001
disp
1
0.786268
0.786268
6. 30
0. 0127
cylinder
1
2.671908
2.671908
21. 42
<.0001
aspirated
1
0.246675
0.246675
1. 98
0.1608
tran type
1
13.160048
13.160048
105.51
<.0001
testwght
1
0.775084
0.775084
6.21
0.0133
road hp
1
0.339351
0.339351
2.72
0.1003
zippy
1
0.087457
0. 087457
0.70
0.4032
fedcat
1
0.049190
0.049190
0.39
0.5306
hchigh
1
0.002675
0.002675
o
o
K)
0.8837
cat type
0
0.000000
repairs
0
0.000000
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-44
-------
MSOD Diesel Data Only
13:53 Friday, December 7, 2001 45
The GLM Procedure
Dependent Variable: gco2_s
Source
DF
Type I SS
Mean Square
F Value
Pr > F
colimitcat
0
0.000000
hclimitcat
0
0.000000
cohigh
0
0.000000
Source
DF
Type II SS
Mean Square
F Value
Pr > F
avgtotpower
1
29.99068427
29.99068427
240.46
<.0001
sched id
14
44.54467763
3.18176269
25.51
<.0001
model yr
3
5.34842115
1.78280705
14.29
<.0001
odometer
1
2.23988957
2.23988957
17. 96
<.0001
disp
1
1.44584948
1.44584948
11.59
0.0008
cylinder
1
1.42791834
1.42791834
11. 45
0.0008
aspirated
1
0.40201344
0.40201344
3.22
0.0738
tran type
1
0.22258972
0.22258972
1.78
0.1828
testwght
1
0.17395775
0.17395775
1.39
0.2387
road hp
1
0.16567684
0.16567684
1.33
0.2502
zippy
1
0.07898848
0.07898848
0. 63
0.4269
fedcat
1
0.04918236
0.04918236
0.39
0.5306
hchigh
1
0.00267478
0.00267478
0. 02
0.8837
cat type
0
0.00000000
repairs
0
0.00000000
colimitcat
0
0.00000000
hclimitcat
0
0.00000000
cohigh
0
0.00000000
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-45
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 46
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
-731.7442804 B
217.4523370
-3.31
0.0009
avgtotpower
0.1897541
0. 0122369
15.51
<.0001
sched id
ART-CD
-0.0573770 B
0.3189873
-0.18
0. 8574
sched id
CBD
-93.1039782 B
35.5945116
-2. 62
0.0094
sched id
FTP
0.4766023 B
0.3409892
1. 40
0.1634
sched id
FTP bnl
0.9170305 B
0.3064788
2. 99
0.0030
sched id
FTP bn2
0.3362449 B
0.3817093
0. 88
0.3792
sched id
FTP bn3
0.2256898 B
0.3070461
0.74
0.4630
sched id
FWY-E
-0.4881542 B
0.2605229
-1. 87
0.0621
sched id
FWY-G
0.1513136 B
0.3979755
0.38
0.7041
sched id
FWY-HI
-1.0945271 B
0.1079489
-10.14
<.0001
sched id
LA92
0.0752766 B
0.2887939
0.26
0.7946
sched id
NYCC
0.4448786 B
0.4263152
1. 04
0.2977
sched id
SC03
0.4764121 B
0.3583570
1.33
0.1849
sched id
SCC12
0.1095381 B
0.5470985
0.20
0.8415
sched id
ST01
0.6410321 B
0.3310706
1. 94
0.0539
sched id
UDDS D
-98.0473095 B
35.5886975
-2.76
0.0063
sched id
USO 6
0.0000000 B
model yr
1969
0.0000000 B
model yr
1980
154.7873553 B
46.8533926
3. 30
0.0011
model yr
1982
289.4518949 B
86.4568283
3. 35
0.0009
model yr
1991
0.9004651 B
0. 9122963
0. 99
0.3246
model yr
1995
81.5552302 B
24.5286895
3. 32
0.0010
model yr
1997
-1.4679957 B
0. 4356442
-3.31
0.0009
model yr
1998
-0.6463150 B
0.1971040
-3.28
0. 0012
model yr
1999
-0.2294249 B
0.1622289
-1. 41
0.1585
model yr
2000
0.0000000 B
odometer
0.0000117
0. 0000028
4.24
<.0001
disp
101.1290070
29.7021164
3.40
0.0008
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-46
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 47
The GLM Procedure
Dependent Variable: gco2 s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
cylinder
6
140.4690238 B
41
5147163
3
38
0
0008
cylinder
8
0.0000000 B
aspirated
CHARGED
0.0000000 B
aspirated
NATURAL
0.5456754 B
0
3039396
1
80
0
0738
aspirated
TURBO
0.0000000 B
tran type
AUTO
0.5425102 B
0
4060958
1
34
0
1828
tran type
MANUAL
0.0000000 B
testwght
-0.0002264
0
0001917
-1
18
0
2387
road hp
-0.1160135
0
1006586
-1
15
0
2502
zippy
-1.3956231
1
7537168
-0
80
0
4269
fedcat
Fed HDV
-0.2427224 B
0
3865256
-0
63
0
5306
fedcat
Fed LDT4
0.0000000 B
fedcat
Fed LDV
0.0000000 B
hchigh
0
-0.0404684 B
0
2763410
-0
15
0
8837
hchigh
1
0.0000000 B
cat type
NONE
0.0000000 B
cat type
OXID
0.0000000 B
repairs
A
0.0000000 B
repairs
B
0.0000000 B
colimitcat
D 10
0.0000000 B
colimitcat
D 15.5
0.0000000 B
colimitcat
D 3. 4
0.0000000 B
colimitcat
D 7
0.0000000 B
colimitcat
D None
0.0000000 B
hclimitcat
D~0.41
0.0000000 B
hclimitcat
D 0.8
0.0000000 B
hclimitcat
D 1.3
0.0000000 B
hclimitcat
D None
0.0000000 B
cohigh
0"
0.0000000 B
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-47
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-48
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 49
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 22 20_40 20_MPH 30_MPH 40_MPH 5PEAK ART-CD CBD FTP FTP_bnl FTP_bn2 FTP_bn3 FWY-E
FWY-G FWY-HI LA92 NYCC SC03 SCC12 ST01 UDDS_D US06 WVUCBD
model_yr 28 1951 1953 1954 1963 1966 1967 1969 1970 1974 1980 1981 1982 1984 1985 1987 1988
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
tran_type 2 AUTO MANUAL
Number of observations 955
NOTE: Due to missing values, only 855 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-49
-------
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
MSOD Diesel Data Only
The GLM Procedure
13:53 Friday, December 7, 2001 50
Sum of
DF Squares
50 10491.82167
804 662.50415
854 11154.32582
Mean Square F Value Pr > F
209.83643 254.65 <.0001
0.82401
R-Square
0. 940606
Coeff Var
13.80295
Root MSE
0.907750
gco2_s Mean
6.576491
Source
avgtotpower
sched_id
model_yr
tran type
DF
1
21
27
1
Type I SS
8620.675139
1413.017918
342. 443242
115.685370
Mean Square
8620.675139
67.286568
12.683083
115.685370
F Value
10461.9
81. 66
15.39
140.39
Pr > F
<.0001
<.0001
<.0001
<.0001
Source
avgtotpower
sched_id
model_yr
tran_type
DF
1
21
27
1
Type II SS
1003.155394
1408.539479
249.582986
115.685370
Mean Square
1003.155394
67.073309
9.243814
115.685370
F Value
1217.41
81. 40
11.22
140.39
Pr > F
<.0001
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-50
-------
MSOD Diesel Data Only
13:53 Friday, December 7, 2001 51
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
2.587809218 B
0.74279573
3.48
0. 0005
avgtotpower
0.167328432
0. 00479570
CO
CO
<.0001
sched id
20 40
2.159918473 B
0.83712780
2.58
0.0101
sched id
20 MPH
1.808768472 B
0.67508131
2. 68
0.0075
sched id
30 MPH
2.193868981 B
1.12754158
1. 95
0. 0520
sched id
40 MPH
3.533933955 B
0.69519610
CO
o
LO
<.0001
sched id
5 PEAK
0.886602639 B
0.66651064
1.33
0.1838
sched id
ART-CD
-1.841367099 B
0.67136319
-2.74
0.0062
sched id
CBD
5.297620061 B
0.70245428
7.54
<.0001
sched id
FTP
-1.345533004 B
0.66717118
1
K)
O
K)
0.0441
sched id
FTP bnl
-0.806404090 B
0.66755926
-1.21
0.2274
sched id
FTP bn2
-1.551092639 B
0.66713694
-2.32
0. 0203
sched id
FTP bn3
-1.488589875 B
0.66755926
1
K)
K)
CO
0.0260
sched id
FWY-E
-2.269936786 B
0.69599367
-3.26
0. 0012
sched id
FWY-G
-1.900829112 B
0.69397017
-2.74
0.0063
sched id
FWY-HI
-2.368468404 B
0.69479764
1
CO
1—1
0. 0007
sched id
LA92
-1.710763771 B
0.70967272
-2. 41
0.0161
sched id
NYCC
-1.678843774 B
0.67634328
1
K)
CO
0.0133
sched id
SC03
-1.418282430 B
0.77342402
1
1—1
CO
CO
0.0671
sched id
SCC12
-0.890930282 B
1.13393625
-0.79
0.4323
sched id
ST01
-1.151559328 B
0.66395627
-1.73
0.0832
sched id
UDDS D
0.280278899 B
0.67507977
0. 42
0.6781
sched id
US0 6
-1.364578008 B
0.69992325
1
1—1
Cn
0. 0516
sched id
WVUCBD
0.000000000 B
model yr
1951
-3.892772301 B
0.53254682
-7.31
<.0001
model yr
1953
-2.547139517 B
0. 44410414
-5.74
<.0001
model yr
1954
0.436790358 B
0.58307920
0.75
0. 4540
model yr
1963
-4.134334813 B
0.53254682
-7.76
<.0001
model yr
1966
1.118558548 B
0.47576632
2.35
0. 0190
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-51
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2 s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
model yr
1967
-1.129308505 B
0.47288461
1
K)
CO
0.0172
model yr
1969
-2.842066912 B
0.58632086
LO
CO
1
<.0001
model yr
1970
-0.927674453 B
0.57310422
-1. 62
0.1059
model yr
1974
-0.917076718 B
0.56690940
-1. 62
0.1061
model yr
1980
-0.390007973 B
0.57964462
-0. 67
0.5012
model yr
1981
-0.478622790 B
0.57953439
1
o
CO
CO
0.4091
model yr
1982
-1.036893572 B
0.48251175
1
K)
1—1
cn
0.0319
model yr
1984
0.285094357 B
0.42023752
CO
o
0.4977
model yr
1985
-0.393570133 B
0.40403888
-0. 97
0.3303
model yr
1987
-1.168151843 B
0.49323069
-2.37
0.0181
model yr
1988
-0.507271597 B
0.38117411
-1.33
0.1836
model yr
1989
-0.149393445 B
0.40263329
-0.37
0.7107
model yr
1990
-1.536835935 B
0. 42831932
1
CO
cn
0.0004
model yr
1991
-0.601014796 B
0.38062557
1
1—1
Cn
CO
0.1147
model yr
1992
-0.226627721 B
0.40994383
LO
LO
o
1
0.5805
model yr
1993
-0.727489669 B
0.37515221
-1. 94
0.0528
model yr
1994
-0.713220736 B
0.36862491
1
1—1
CO
0.0534
model yr
1995
-0.477848617 B
0.37019477
-1.29
0.1971
model yr
1996
-0.810932929 B
0.38726730
1
K)
O
0.0366
model yr
1997
-0.461314091 B
0.38044738
-1.21
0.2257
model yr
1998
-0.078309003 B
0.37603704
1
o
K)
1—1
0.8351
model yr
1999
-0.350295097 B
0.36377298
-0. 96
0.3359
model yr
2000
0.000000000 B
tran type
AUTO
1.053907039 B
0.08894660
1—1
1—1
CO
cn
<.0001
tran type
MANUAL
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-52
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
782
73
22206.03
79654.23
3.3857611
433998.76
hclimit
782
73
2547.58
8714.79
0.2708609
45604.09
disp
805
50
7.7415701
2.2015168
3.0000000
14.0117994
testwght
855
0
17564.48
14098.97
2625.00
62900.00
road hp
855
0
41.6501529
31.0635167
6.7000000
140. 0000000
odometer
740
115
60646.28
75201.32
33.0000000
353000.00
Pi
855
0
0.2566502
0.1180932
0
0. 4282051
p2
855
0
0. 0329179
0.0444413
0
0.2081967
p3
855
0
0. 0027223
0.0070313
0
0. 0415973
p4
855
0
0.000697900
0. 0024700
0
0.0149750
avgtotpower
855
0
24.3127272
16.3977454
3.0782612
85.9992500
temp
855
0
75.9730994
2.6101902
70. 0000000
85.0000000
rvp
0
855
mpg
850
5
11.4217439
6.1613435
1.7800000
36.7300000
co2
855
0
1144.07
724.3641371
277.6520000
5547.01
gco2
782
73
5236.97
3740.54
658.1954667
16974.34
gco2 s
855
0
6.5764911
3.6140381
1. 4228027
21. 0444444
ch4
152
703
0.0060592
0.0114702
0.0010000
0.1170000
gch4
152
703
0.0199524
0.0381296
0.0011796
0.3091612
mgch4 s
152
703
0.0300942
0.0579122
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-53
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 54
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
855
100.00
855
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
189
22.11
189
22.11
Fed HDV
550
64.33
739
86. 43
Fed LDT4
88
10.29
827
96. 73
Fed LDV
28
3.27
855
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-54
-------
l_yr
1951
1953
1954
1963
1966
1967
1969
1970
1974
1980
1981
1982
1984
1985
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 55
The FREQ Procedure
Cumulative Cumulative
Frequency Percent Frequency Percent
6
0.70
6
0.70
18
2.11
24
2. 81
5
0.58
29
3. 39
6
0.70
35
4. 09
9
1. 05
44
5.15
10
1.17
54
6. 32
4
0. 47
58
6.78
5
0.58
63
7.37
6
0.70
69
8. 07
4
0. 47
73
8.54
4
0. 47
77
9.01
8
0. 94
85
9. 94
16
1. 87
101
11. 81
23
2. 69
124
14.50
8
0. 94
132
15. 44
59
6. 90
191
22.34
29
3. 39
220
25.73
19
2.22
239
27. 95
40
4. 68
279
32. 63
21
2.46
300
35. 09
55
6. 43
355
41.52
65
7. 60
420
49.12
63
7.37
483
56.49
49
5.73
532
62.22
52
6.08
584
68.30
72
8. 42
656
76. 73
192
22. 46
848
99.18
7
0. 82
855
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-55
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 56
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
376
CO
CO
376
CO
CO
DIRECT
434
50.76
810
94.74
PFI
45
5.26
855
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
376
43. 98
376
43. 98
NONE
394
46.08
770
90. 06
OXID
85
9. 94
855
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
7
0. 82
7
0. 82
4
8
0. 94
15
1.75
5
4
0. 47
19
2.22
6
548
64. 09
567
66. 32
8
288
33. 68
855
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-56
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 57
The FREQ Procedure
Cumulative Cumulative
aspirated Frequency Percent Frequency Percent
344
40.23
344
40.23
CHARGED
5
0.58
349
40. 82
NATURAL
108
12. 63
457
53. 45
SUPER
5
0.58
4 62
54. 04
TURBO
393
45. 96
855
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
AUTO
581
67. 95
581
67. 95
MANUAL
274
32. 05
855
100.00
Cumulative
Cumulative
repairs
Frequency
Percent
Frequency
Percent
A
21
2.46
21
2.46
B
834
97.54
855
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
73
8.54
73
8.54
0
782
91. 46
855
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-57
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 58
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
81
9. 47
81
9. 47
0
756
88. 42
837
97. 89
1
18
2.11
855
100.00
Cumulative
Cumulati1
sched id
Frequency
Percent
Frequency
Percen"
20 40
3
0.35
3
0.35
20 MPH
33
3.86
36
4.21
30 MPH
1
0.12
37
4.33
40 MPH
36
4.21
73
8.54
5 PEAK
117
13. 68
190
22.22
ART-CD
40
4. 68
230
26. 90
CBD
26
3.04
256
29. 94
FTP
49
5.73
305
35. 67
FTP bnl
49
5.73
354
41. 40
FTP bn2
49
5.73
403
47.13
FTP bn3
49
5.73
452
52. 87
FWY-E
18
2.11
470
54. 97
FWY-G
18
2.11
488
57. 08
FWY-HI
36
4.21
524
61.29
LA92
12
1. 40
536
62. 69
NYCC
35
4. 09
571
66. 78
SC03
5
0.58
576
67.37
SCC12
1
0.12
577
67. 49
ST01
68
7. 95
645
75. 44
UDDS D
186
21.75
831
97.19
USO 6
22
2.57
853
99. 77
WVUCBD
2
0.23
855
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
Bl-58
-------
MSOD Diesel Data Only 13:53 Friday, December 7, 2001 59
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
855
100.00
855
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
718
83
54
83. 98
9.71
6. 32
718
801
855
83. 98
93. 68
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
855
100.00
855
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
25
855
100.00
855
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
491 57.43 491 57.43
L 364 42.57 855 100.00
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-59
-------
MSOD Diesel Data Only
The FREQ Procedure
13:53 Friday, December 7, 2001 60
rvpind
Frequency
855
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
855
100.00
oxygenate
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
None
416
439
48. 65
51.35
416
855
48. 65
100.00
oxyind
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
D
U
439
416
51.35
48. 65
439
855
51.35
100.00
/camwheels/cam/epaco2ch4/vclco2dies.sas
Bl-60
-------
Appendix B2
Dependence of gC02/s for Diesel Vehicles on Operating Conditions
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 1
15:39 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Class Levels Values
msid_cause 105 1B6MM36C3NS69029 1B7KC26C6SS26540 1B7KE26C9MS33819 1B7KF2361YJ14661
1B7KF2364XJ5954 6 1B7KF2368WJ23770 1B7KF26C0RS57767 1B7KF26C9RS57767
1B7KM2 683MS23882 1B7KM26C2MS35053 1CYCCM482WT04319 1FDNF80C1SVA6790
1FDNK64P1LVA3279 1FDPK74CXRVA2385 1FDXD80U9KVA2380 1FDXF80E2TVA1844
1FDXF80E9TVA1777 1FDXK74P0KVA1321 1FDXR3040UA39153 1FDXR804 6HVA4483
1FDXR8 047 GVA3 884 1FDXR8049GVA3915 1FDXR82A4KVA3654 1FDXR82A9HVA4521
1FDXR8 2 E 8 RVAO 853 1FDXR90W3FVA0953 1FDYH81E2RVA0122 1FDYW80V4FVA2714
1FDYW 8 2AO LVA1702 1FRDXR82A3KUA399 1FSLRTVNCH495460 1FTHW25F6VEC3180
1FTHX2 5M8 JKA7 736 1FTHX26F0SEA8323 1FTJW36F4REA3925 1FTNF20F7YEA2924
1FTSW31F2XEA85 68 1FTSW31FXXEF0317 1FUW3MCA5TH83474 1FV6TMCB2XHB15 4 7
1GCDC14C1DF36914 1GCGC2 4J5KE11959 1GCHK33F6SF00630 1GCHK34F3PE22487
1GDM7H1J2VJ502 60 1GDM7H1J4MJ50181 1GDP7D1G2KV50785 1HSHBAHN2WH5 4042
1HSHBAUN 4 TH3 9913 1HSHBAUN8RH59818 1HSHBGEN5MH35828 1HSHBN6N3RH53727
1HSHGG2R1LH25779 1HSHGG2R2LH25779 1HSHGG8R5LH25780 1HSSDAAN6RH58838
1HTLCHXPXHHA2 58 6 1HTLDTVN9JH52654 1HTMJABK2TA01222 1HTSCAAM5TH36905
1HTSCPEM9PH49141 1HTSDAAN4TH31050 1HTSDPNP3NH43520 1M2AA07Y7NW00312
1M2P28 6C4WM03619 1MZK193C9XM00723 2GHYT82J5B350049 2HSFMALRXTC05227
3B7KC2364XG23502 3B7KE23C7PM17038 3B7KF2363XG14345 3B7KF23D1VG83674
62575_255271 68112P_255250 6L57NAE606815_25 73222_255242 80145_255276
B61T-41058-67_25 CRC_E_24151_2558 CRC_E_24213_2559 CRC_E_242 6_25577
CRC_E_2 4 4 5_2 5579 CRC_E_2 48 9_2 5583 CRC_E_2491_25583 E_24_3_101E_24_3
E_2 4_3_i ° 2 E_2 4_3 E_2 4_3_10 3 E_2 4_3 E_24_3_104E_24_3 E_24_3_105E_24_3
E_24_3_i°6E_24_3 E_24_3_107E_24_3 E_24_3_108E_24_3 F4693115465_2550
F4693115465_2552 JW6CCG1G6XL00381 LFT1D10945D_2552 LTL2D2055D_25527
M-850_255244 RS737LST5695_255 VG6M116A5RB10178 VG6M119X4PB40011
WDBAB33A8CB00493 WDBAB53A7CB00042 YB3L06B14GB03485 Z00LUB12339_2552
sched_id 18 5PEAK ART-CD CBD FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI IM240 LA92 NYCC
SC03 SCC12 ST01 UDDS_D US06 WVUCBD
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-1
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 2
15:39 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Values
0
H L
GE60 LT60 None
Class Levels
aeon 1
altcat 2
soakcat 3
Number of observations 856
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-2
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 3
15:39 Friday, December 7, 2001
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
122 10495.72813
733 204.13436
855 10699.86249
Mean Square
86.03056
0.27849
F Value
308.92
Pr > F
<.0001
R-Square
0. 980922
Coeff Var
7.625223
Root MSE
0.527723
gco2_s Mean
6.920756
Source
msid_cause
sched_id
avgtotpower
soakcat
altcat
aeon
DF
104
16
1
1
0
0
Type I SS
9074.585201
1378.898335
32.174390
10. 070206
0.000000
0.000000
Mean Square
87.255627
86.181146
32.174390
10.070206
F Value
313.32
309.46
115.53
36.16
Pr > F
<.0001
<.0001
<.0001
<.0001
Source
msid_cause
sched_id
avgtotpower
soakcat
DF
102
15
1
1
Type II SS
778.9682694
372.2675561
32.1743904
10.0702065
Mean Square
7.6369438
24.8178371
32.1743904
10.0702065
F Value
27. 42
89.12
115.53
36.16
Pr > F
<.0001
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-3
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 4
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Source
altcat
aeon
DF
0
0
Type II SS
0.0000000
0.0000000
Mean Square
F Value
Pr > F
Parameter
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid cause
1B6MM36C3NS69029
1B7KC2 6C6SS2 6540
1B7KE2 6C9MS33819
1B7KF2361YJ14 661
1B7KF2364XJ5954 6
1B7KF2368WJ23770
1B7KF2 6C0RS577 67
1B7KF2 6C9RS577 67
1B7KM2 683MS23882
1B7KM2 6C2MS35053
1CYCCM482WT04319
1FDNF80C1SVA6790
1FDNK64P1LVA3279
1FDPK74CXRVA2385
1FDXD80U9KVA2380
1FDXF80E2TVA1844
1FDXF80E9TVA1777
1FDXK74P0KVA1321
1FDXR3 0 4 0UA3 9153
1FDXR8 0 4 6HVA4 483
1FDXR8 047 GVA3 884
Estimate
5.166314399
-0.223712954
0.175663622
0.231147296
-0.110835034
0.560573258
0.187622331
0.231146475
-0.237228589
-0.138886855
0.480768621
3.423886952
-1.488337374
-2.379654088
-1.113784391
-1.062231553
0.107129431
-0.334291594
-0.848254250
-0.642906171
-0.055845008
0.239085800
Standard
Error
0.50466156
0.55419803
0.47547196
0.48197845
0.47976971
0.47941048
0.46643793
0.53547527
0.53547527
0.55375668
0.53561570
0.25876959
0.30250409
0.30108334
0.29117689
0.27373819
0.28275761
0.26067010
0.28682923
0.25660595
0.39834301
0.25660595
t Value
10.24
-0. 40
0.37
0. 48
-0.23
1.17
0. 40
0. 43
-0. 44
-0.25
0. 90
13.23
-4. 92
-7. 90
-3. 83
-3.88
0.38
-1.28
-2. 96
-2.51
-0.14
0. 93
Pr > |t|
<.0001
0.68 66
0.7119
0.6317
0. 8174
0.2427
0.6876
0.6661
0.6579
0. 8020
0.3697
<.0001
<.0001
<.0001
0.0001
0. 0001
0.7049
0.2001
0.0032
0. 0124
0. 8885
0.3518
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-4
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 7
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
B61T-41058-67 25
-3.545999188 B
0.25337709
1
1—1
CO
<.0001
msid
cause
CRC E 24151 2558
-0.261769711 B
0.73447472
-0.36
0.7216
msid
cause
CRC E 24213 2559
-1.197256725 B
0.73528229
-1. 63
0.1039
msid
cause
CRC E 2426 25577
-0.978821433 B
0.73504875
-1.33
0.1834
msid
cause
CRC E 2445 25579
-0.344269583 B
0.73485700
-0. 47
0.6396
msid
cause
CRC E 2489 25583
-1.318542707 B
0.73552206
-1.79
0.0734
msid
cause
CRC E 2491 25583
-0.231838616 B
0.73485700
-0.32
0.7525
msid
cause
E 24 3 101E 24 3
0.356080632 B
0.55407489
0. 64
0.5206
msid
cause
E 24 3 102E 24 3
0.059773740 B
0.55382383
0.11
0.9141
msid
cause
E 24 3 103E 24 3
-0.989097319 B
0.55448250
-1.78
0. 0749
msid
cause
E 24 3 104E 24 3
0.334724493 B
0.55388138
0. 60
0.5458
msid
cause
E 24 3 105E 24 3
-0.369999880 B
0.55409140
-0. 67
0.5045
msid
cause
E 24 3 106E 24 3
-1.113661672 B
0.55432240
-2. 01
0.0449
msid
cause
E 24 3 107E 24 3
0.956467398 B
0.55403263
1.73
0. 0847
msid
cause
E 24 3 108E 24 3
0.939315376 B
0.55393075
1.70
0.0904
msid
cause
F4693115465 2550
-1.457574455 B
0.41580530
-3.51
0. 0005
msid
cause
F4693115465 2552
-0.205657550 B
0.28295496
-0.73
0.4676
msid
cause
JW6CCG1G6XL00381
-1.353237173 B
0.32054414
-4.22
<.0001
msid
cause
LFT1D10945D 2552
-3.304436676 B
0.25337709
-13.04
<.0001
msid
cause
LTL2D2055D 25527
4.029967050 B
0.28943586
13. 92
<.0001
msid
cause
M-850 255244
-2.491033069 B
0.26875542
-9.27
<.0001
msid
cause
RS737LST5695 255
1.902246786 B
0.27051703
7. 03
<.0001
msid
cause
VG6M116A5RB10178
-2.380338643 B
0.30524234
-7. 80
<.0001
msid
cause
VG6M119X4PB40011
-2.201638000 B
0.26811915
-8.21
<.0001
msid
cause
WDBAB3 3A8 CB 0 0 4 9 3
-0.490367970 B
0.53519227
-0. 92
0.3598
msid
cause
WDBAB53A7CB00042
-0.398525926 B
0.55380150
-0.72
0. 4720
msid
cause
YB3L0 6B14GB03485
-2.842817651 B
0.29071231
-9.78
<.0001
msid
cause
Z00LUB12339 2552
0.000000000 B
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-5
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 8
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched id
5 PEAK
1.073091393 B
0
42737151
2.51
0. 0123
sched id
ART-CD
-2.847226277 B
0
21291079
-13.37
<.0001
sched id
CBD
4.414381362 B
0
44292246
9. 97
<.0001
sched id
FTP bnl
-2.682518003 B
0
24526394
1
1—1
o
<.0001
sched id
FTP bn2
-3.299341364 B
0
24480050
1
1—1
CO
CO
<.0001
sched id
FTP bn3
-2.595051212 B
0
20921888
1
1—1
K)
O
<.0001
sched id
FWY-E
-2.655600888 B
0
20384066
1
1—1
CO
o
CO
<.0001
sched id
FWY-G
-3.442465805 B
0
25884309
1
1—1
CO
CO
o
<.0001
sched id
FWY-HI
-0.585271568 B
0
13818180
-4.24
<.0001
sched id
IM240
-2.193989709 B
0
28327212
-7.75
<.0001
sched id
LA92
-2.461303333 B
0
23515845
-10. 47
<.0001
sched id
NYCC
-3.496274874 B
0
25895911
1
1—1
CO
en
o
<.0001
sched id
SC03
-2.519425480 B
0
29824937
LO
CO
l
<.0001
sched id
SCC12
-3.511915160 B
0
65378220
-5.37
<.0001
sched id
ST01
-2.763393076 B
0
22807133
-12.12
<.0001
sched id
UDDS D
1.746013676 B
0
44477884
3. 93
<.0001
sched id
USO 6
0.000000000 B
sched id
WVUCBD
0.000000000 B
avgtotpower
0.071460523
0
00664840
10.75
<.0001
soakcat
GE60
0.769652576 B
0
12799164
6.01
<.0001
soakcat
LT60
0.000000000 B
soakcat
None
0.000000000 B
altcat
H
0.000000000 B
altcat
L
0.000000000 B
aeon
0
0.000000000 B
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-6
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 9
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-7
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 10
15:39 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
856
0
24144.75
82202.98
3.3857611
433998.76
hclimit
856
0
2713.07
8881.57
0.2708609
45604.09
disp
782
74
7.6815378
2.2492930
2.3000000
14. 0117994
testwght
856
0
19384.31
15208.58
2500.00
62900.00
road hp
856
0
45.4829250
33.3905190
6.6000000
140. 0000000
odometer
753
103
65584.56
71786.85
33.0000000
353000.00
Pi
856
0
0.2755697
0. 0925041
0
0.5083333
p2
856
0
0.0356764
0. 0448279
0
0.2081967
p3
856
0
0.0031412
0.0074758
0
0. 0415973
p4
856
0
0.000774722
0.0026560
0
0.0149750
avgtotpower
856
0
27.6579952
17.8031616
3.0782612
85.9992500
temp
848
8
76.4680425
3. 7304586
35.0000000
90.0000000
rvp
0
856
mpg
856
0
10.6440529
6. 4591855
1.7800000
36.7300000
co2
856
0
1283.31
811.9750271
266.4900000
5547.01
gco2
856
0
5731.33
4137.50
521.9280675
16974.34
gco2 s
856
0
6.9207560
3.5375781
1. 4228027
19.5878861
ch4
149
707
0. 0056980
0.0114099
0.0010000
0.1170000
gch4
149
707
0.0146340
0.0237503
0.0011796
0.2084085
mgch4 s
149
707
0. 0281371
0.0569922
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-8
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 11
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
856
100.00
856
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
247
28. 86
247
28. 86
Fed HDV
501
58.53
748
87.38
Fed LDT4
81
9.46
829
96. 85
Fed LDV
27
3.15
856
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-9
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 12
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
1951
6
0.70
6
0.70
1953
18
2.10
24
2. 80
1954
6
0.70
30
3.50
1963
6
0.70
36
4.21
1966
7
0. 82
43
5. 02
1967
18
2.10
61
7.13
1969
6
0.70
67
7. 83
1970
6
0.70
73
8.53
1974
6
0.70
79
9.23
1977
1
0.12
80
9. 35
1980
12
1. 40
92
10.75
1981
6
0.70
98
11. 45
1982
8
0. 93
106
12.38
1983
2
0.23
108
12. 62
1984
12
1. 40
120
14. 02
1985
19
2.22
139
16.24
1986
16
1. 87
155
18.11
1987
21
2. 45
176
20.56
1988
50
5. 84
226
26.40
1989
41
4.79
267
31.19
1990
33
3.86
300
35. 05
1991
34
3. 97
334
39. 02
1992
17
1. 99
351
41. 00
1993
47
5. 49
398
46.50
1994
60
7. 01
458
53. 50
1995
62
7.24
520
60.75
1996
38
4. 44
558
65.19
1997
45
5.26
603
70. 44
1998
60
7. 01
663
77. 45
1999
180
21. 03
843
98. 48
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-10
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 13
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
2000
13
1.52
856
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
295
34. 46
295
34. 46
DIRECT
519
60. 63
814
95. 09
PFI
42
4. 91
856
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
302
35.28
302
35.28
NONE
476
55. 61
778
90. 89
OXID
78
9.11
856
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
24
2. 80
24
2. 80
4
6
0.70
30
3.50
5
3
0.35
33
3.86
6
564
65. 89
597
69. 74
8
259
30.26
856
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-11
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 14
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
aspirated Frequency Percent Frequency Percent
278
CO
K)
CO
278
CO
K)
CO
CHARGED
4
0. 47
282
32. 94
NATURAL
101
1—1
1—1
CO
o
383
44.74
SUPER
6
0.70
389
LO
TURBO
467
54.56
856
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
7
o
CO
K)
7
o
CO
K)
AUTO
566
66.12
573
66.94
MANUAL
283
33. 06
856
100.00
Cumulative
Cumulative
repairs
Frequency
Percent
Frequency
Percent
A
66
7.71
66
7.71
B
32
3.74
98
11. 45
S
758
88.55
856
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
0
856
100.00
856
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-12
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 15
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
11 1.29 11 1.29
0 819 95.68 830 96.96
1 26 3.04 856 100.00
Cumulative Cumulative
sched id Frequency Percent Frequency Percent
5 PEAK
117
13.
. 67
117
13.
, 67
ART-CD
40
4.
. 67
157
18.
, 34
CBD
38
4.
. 44
195
22.
, 78
FTP bnl
49
5.
. 72
244
28.
, 50
FTP bn2
49
5.
. 72
293
34.
,23
FTP bn3
49
5.
. 72
342
39.
, 95
FWY-E
18
2.
. 10
360
42.
,06
FWY-G
18
2.
. 10
378
44.
,16
FWY-HI
38
4.
. 44
416
48.
, 60
IM240
15
1.
. 75
431
50.
, 35
LA92
12
1.
. 40
443
51.
, 75
NYCC
38
4.
. 44
481
56.
, 19
SC03
6
0.
. 70
487
56.
, 89
SCC12
1
0.
. 12
488
57.
, 01
ST01
68
7.
. 94
556
64.
, 95
UDDS D
272
31.
. 78
828
96.
, 73
US0 6
26
3.
. 04
854
99.
, 77
WVUCBD
2
0.
.23
856
100.
, 00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-13
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 16
15:39 Friday, December 7, 2001
The FREQ Procedure
start run
Frequency
856
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
856
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
None
83
55
718
9.70
6. 43
83. 88
83
138
856
9.70
16.12
100.00
aeon
Frequency
856
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
856
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
5
25
35
2
824
22
0. 93
0.23
96.26
2.57
10
834
856
0. 93
1.17
97. 43
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-14
-------
Diesel C02 Operating Conditions From MSOD Only (without temp or oxyind) 17
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
H
86
10. 05
86
10. 05
L
770
CO
cn
856
100.00
Cumulative
Cumulative
rvpind
Frequency
Percent
Frequency
Percent
856
100.00
856
100.00
oxygenate
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
None
340
516
39. 72
60.28
340
856
39. 72
100.00
oxyind
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
340
516
39. 72
60.28
340
856
39. 72
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-15
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 18
15:39 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Class
msid cause
Levels Values
178 HDD100_1 HDD101_1 HDD102_1 HDD103_1 HDD104_1 HDD105_1 HDD106_1 HDD107_1
HDD108_1 HDD109_1 HDD10_1 HDD110_1 HDD111_1 HDD112_1 HDD113_1 HDD116_1
HDD117_1 HDD119_1 HDD11_1 HDD120_1 HDD121_1 HDD122_1 HDD123_1 HDD124_1
HDD125_1 HDD12 6_1 HDD129_1 HDD12_1 HDD130_1 HDD131_1 HDD132_1 HDD133_1
HDD134_1 HDD135_1 HDD136_1 HDD137_1 HDD138_1 HDD13_1 HDD141_1 HDD147_1
HDD148_1 HDD149_1 HDD14_1 HDD150_1 HDD151_1 HDD152_1 HDD153_1 HDD154_1
HDD155_1 HDD15 6_1 HDD157_1 HDD158_1 HDD159_1 HDD15_1 HDD160_1 HDD161_1
HDD162_1 HDD163_1 HDD164_1 HDD165_1 HDD166_1 HDD167_1 HDD168_1 HDD169_1
HDD16_1 HDD170_1 HDD171_1 HDD172_1 HDD173_1 HDD174_1 HDD175_1 HDD176_1
HDD177_1 HDD178_1 HDD179_1 HDD17_1 HDD180_1 HDD181_1 HDD182_1 HDD183_1
HDD184_1 HDD185_1 HDD186_1 HDD187_1 HDD188_1 HDD189_1 HDD18_1 HDD190_1
HDD191_1 HDD192_1 HDD193_1 HDD194_1 HDD195_1 HDD196_1 HDD197_1 HDD198_1
HDD19_1 HDD1_1 HDD20_1 HDD211_1 HDD212_1 HDD213_1 HDD214_1 HDD215_1 HDD216_1
HDD217_1 HDD218_1 HDD219_1 HDD21_1 HDD220_1 HDD224_1 HDD225_1 HDD226_1
HDD227_1 HDD228_1 HDD229_1 HDD22_1 HDD230_1 HDD231_1 HDD233_1 HDD234_1
HDD235_1 HDD236_1 HDD237_1 HDD238_1 HDD239_1 HDD23_1 HDD240_1 HDD241_1
HDD242_1 HDD24_1 HDD25_1 HDD26_1 HDD2_1 HDD3_1 HDD42_1 HDD43_1 HDD44_1 HDD45_1
HDD4 6_1 HDD47_1 HDD48_1 HDD49_1 HDD4_1 HDD50_1 HDD51_1 HDD52_1 HDD5_1 HDD61_1
HDD62_1 HDD63_1 HDD64_1 HDD65_1 HDD66_1 HDD67_1 HDD68_1 HDD69_1 HDD6_1 HDD70_1
HDD71_1 HDD72_1 HDD73_1 HDD74_1 HDD75_1 HDD76_1 HDD77_1 HDD78_1 HDD79_1 HDD7_1
HDD80 1 HDD81 1 HDD8 1 HDD92 1 HDD95 1 HDD97 1 HDD98 1 HDD99 1 HDD9 1
sched_id
aeon
altcat
soakcat
6 ART CBD NYBUS NYGTC TRKCBD UDDS_D
1 0
2 H L
1 None
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-16
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 19
15:39 Friday, December 7, 2001
The GLM Procedure
Number of observations 294
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-17
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 20
15:39 Friday, December 7, 2001
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
182 1923.844039
111 53.644613
293 1977.488651
Mean Square
10.570572
0.483285
F Value
21. 87
Pr > F
<.0001
R-Square
0. 972872
Coeff Var
6.699678
Root MSE
0.695187
gco2_s Mean
10.37642
Source
msid_cause
sched_id
avgtotpower
soakcat
altcat
aeon
DF
177
4
1
0
0
0
Type I SS
1739.589581
171.460185
12.794273
0.000000
0.000000
0.000000
Mean Square
9.828190
42.865046
12.794273
F Value
20.34
88.70
26. 47
Pr > F
<.0001
<.0001
<.0001
Source
msid_cause
sched_id
avgtotpower
soakcat
DF
175
4
1
0
Type II SS
931.7273469
49.2146218
12.7942734
0.0000000
Mean Square
5.3241563
12.3036555
12.7942734
F Value
11. 02
25. 46
26. 47
Pr > F
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-18
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 21
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
DF Type II SS Mean Square F Value Pr > F
0 0.0000000
0 0.0000000
Source
altcat
aeon
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
5.95166258 B
0.73105045
CO
1—1
<.0001
msid cause
HDD100
1
1.50458058 B
0.88365032
1.70
0.0914
msid cause
HDD101
1
1.17262629 B
0.88365032
1.33
0.1872
msid cause
HDD102
1
1.04461787 B
0.61055873
1.71
0.0899
msid cause
HDD103
1
3.43469036 B
0.87383119
3. 93
0.0001
msid cause
HDD104
1
2.42536534 B
0.87383119
2.78
0.0065
msid cause
HDD105
1
2.84532647 B
0.87383119
3.26
0.0015
msid cause
HDD106
1
2.51768815 B
0.87455094
2. 88
0.0048
msid cause
HDD107
1
0.18033217 B
0.87664848
0.21
0.8374
msid cause
HDD108
1
0.94204575 B
0.66090984
1. 43
0.1569
msid cause
HDD109
1
4.40956688 B
0.65062930
6.78
<.0001
msid cause
HDD10 1
0.65108932 B
0.69518688
0. 94
0.3510
msid cause
HDD110
1
-0.39788150 B
0.85640339
o
1
0.6431
msid cause
HDD111
1
-0.74783992 B
0.70899805
1
i—1
o
en
0.2938
msid cause
HDD112
1
1.01152974 B
0.61692784
1. 64
0.1039
msid cause
HDD113
1
4.27995409 B
0.64523179
6. 63
<.0001
msid cause
HDD116
1
1.39647070 B
0.61497913
2.27
0. 0251
msid cause
HDD117
1
0.09574355 B
0.62403871
0.15
0.8783
msid cause
HDD119
1
0.55791943 B
0.63798070
0. 87
0.3837
msid cause
HDD11 1
2.44909899 B
0.79625027
3.08
0. 0026
msid cause
HDD120
1
2.65573251 B
0.72709788
3. 65
0.0004
msid cause
HDD121
1
1.60069872 B
0.64164250
2. 49
0.0141
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-19
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 27
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
msid cause
HDD73
1
-0.95327885 B
0
88034900
1
1—1
o
CO
0.2812
msid cause
HDD74
1
-0.69340976 B
0
88034900
-0.79
0. 4326
msid cause
HDD75
1
-0.70152181 B
0
88034900
o
CO
o
1
0.4272
msid cause
HDD7 6
1
-0.36401445 B
0
88034900
1
o
1—1
0.6800
msid cause
HDD77
1
-0.81139127 B
0
88034900
1
o
K)
0.3587
msid cause
HDD78
1
-0.79631917 B
0
88034900
1
O
O
0.3677
msid cause
HDD79
1
-0.96703002 B
0
88034900
1
1—1
1—1
O
0.2744
msid cause
HDD7 1
-0.13080049 B
0
69518688
1
o
1—1
0. 8511
msid cause
HDD80
1
-0.70180586 B
0
88034900
O
CO
O
1
0. 4270
msid cause
HDD81
1
-0.70708682 B
0
88034900
-0. 80
0. 4236
msid cause
HDD8 1
1.48373528 B
0
69518688
2.13
0. 0350
msid cause
HDD92
1
3.38908794 B
0
87398341
3.88
0. 0002
msid cause
HDD95
1
4.76797342 B
0
87398341
5.46
<.0001
msid cause
HDD97
1
1.06904410 B
0
88365032
1.21
0.2289
msid cause
HDD98
1
1.60852430 B
0
88365032
1. 82
0. 0714
msid cause
HDD99
1
0.69468876 B
0
73429932
0. 95
0.3462
msid cause
HDD9 1
0.00000000 B
sched id
ART
4.41472066 B
0
73432436
6.01
<.0001
sched id
CBD
-0.12269627 B
0
28803496
-0. 43
0.6709
sched id
NYBUS
-2.89855559 B
0
70641443
-4.10
<.0001
sched id
NYGTC
-6.00286691 B
0
89363073
-6. 72
<.0001
sched id
TRKCBD
0.00000000 B
sched id
UDDS D
0.00000000 B
avgtotpower
0.06697119
0
01301613
5.15
<.0001
soakcat
None
0.00000000 B
altcat
H
0.00000000 B
altcat
L
0.00000000 B
aeon
0
0.00000000 B
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-20
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 28
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-21
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 29
15:39 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
294
0
48.6698581
32.1729877
9.9147531
246
.1273125
hclimit
294
0
724.6825078
4456.10
0. 8315599
37861.95
disp
205
89
9. 0723096
1.1896369
6.4896755
12
. 7000000
testwght
294
0
36208.36
11484.10
9550.00
75500.00
road hp
294
0
82.7687834
20.3018611
26.1290016
132
.5727389
odometer
274
20
112456.08
105040.86
100.0000000
478737.00
Pi
294
0
0.2577997
0.0274418
0.1116667
0
. 5046838
p2
294
0
0.0089501
0.0110447
0
0
. 0226202
p3
294
0
0.000737335
0.000921473
0
0
.0018850
p4
294
0
0
0
0
0
avgtotpower
294
0
38.0356723
18.4668416
4.9473991
92
.6001332
temp
0
294
rvp
0
294
mpg
294
0
4.2073605
1.1221291
1.3200000
8
.2900000
co2
294
0
2581.56
808.8629121
1187.37
7690.26
gco2
294
0
8059.52
3691.19
2381.57
17349.26
gco2 s
294
0
10.3764226
2.5979045
4.1929084
21
.3937034
ch4
0
294
gch4
0
294
mgch4 s
0
294
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-22
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 30
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
294
100.00
294
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
20
6.80
20
6.80
Fed HDV
274
93.20
294
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-23
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 31
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
1976
2
CO
O
2
CO
O
1977
4
1.36
6
2. 04
1978
2
0. 68
8
2.72
1979
18
6.12
26
8. 84
1980
18
6.12
44
14. 97
1981
22
7. 48
66
22. 45
1982
5
1.70
71
24.15
1983
2
0. 68
73
24. 83
1984
1
0.34
74
25.17
1985
1
0.34
75
25.51
1986
3
1. 02
78
26. 53
1987
3
1. 02
81
27.55
1988
28
9. 52
109
37. 07
1989
16
5. 44
125
42.52
1990
20
6.80
145
49. 32
1991
27
9.18
172
58.50
1992
37
12.59
209
71. 09
1993
23
7. 82
232
78. 91
1994
21
7.14
253
86. 05
1995
4
1.36
257
87. 41
1996
29
9.86
286
97.28
1997
8
2.72
294
Cumulative
100.00
Cumulative
fi type
Frequency
Percent
Frequency
Percent
294 100.00 294 100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-24
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 32
15:39 Friday, December 7, 2001
The
FREQ Procedure
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
294
100.00
294
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
89
30.27
89
30.27
4
42
14.29
131
44.56
6
155
52.72
286
97.28
8
8
2.72
294
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
89
30.27
89
30.27
CHARGED
22
7. 48
111
37.76
SUPER
3
1. 02
114
38.78
TURBO
180
61.22
294
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
294
100.00
294
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-25
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 33
15:39 Friday, December 7, 2001
The FREQ Procedure
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
294
100.00
294
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
294
100.00
294
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
65 22.11 65 22.11
0 226 76.87 291 98.98
1 3 1.02 294 100.00
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
ART
2
0.
, 68
2
0.
68
CBD
172
58.
, 50
174
59.
18
NYBUS
2
0.
, 68
176
59.
86
NYGTC
2
0.
, 68
178
60.
54
TRKCBD
1
0.
, 34
179
60.
88
UDDS D
115
39.
, 12
294
100.
00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-26
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 34
15:39 Friday, December 7, 2001
The FREQ Procedure
start run
Frequency
294
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
294
100.00
soakcat
None
Frequency
294
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
294
100.00
Frequency
294
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
294
100.00
tempcat
Frequency
294
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
294
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
H
L
76
218
25. 85
74.15
76
294
25. 85
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-27
-------
Diesel C02 Operating Conditions From Yanowitz Spreadsheet Only (without temp or oxyind) 35
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
294 100.00 294 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 294 100.00 294 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 294 100.00 294 100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-28
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 36
15:39 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Class Levels Values
msid_cause 283 1B6MM36C3NS69029 1B7KC26C6SS26540 1B7KE26C9MS33819 1B7KF2361YJ14661
1B7KF2364XJ5954 6 1B7KF2368WJ23770 1B7KF26C0RS57767 1B7KF26C9RS57767
1B7KM2 683MS23882 1B7KM26C2MS35053 1CYCCM482WT04319 1FDNF80C1SVA6790
1FDNK64P1LVA3279 1FDPK74CXRVA2385 1FDXD80U9KVA2380 1FDXF80E2TVA1844
1FDXF80E9TVA1777 1FDXK74P0KVA1321 1FDXR3040UA39153 1FDXR804 6HVA4483
1FDXR8 047 GVA3 884 1FDXR8049GVA3915 1FDXR82A4KVA3654 1FDXR82A9HVA4521
1FDXR8 2 E 8 RVAO 853 1FDXR90W3FVA0953 1FDYH81E2RVA0122 1FDYW80V4FVA2714
1FDYW 8 2AO LVA1702 1FRDXR82A3KUA399 1FSLRTVNCH495460 1FTHW25F6VEC3180
1FTHX2 5M8 JKA7 736 1FTHX26F0SEA8323 1FTJW36F4REA3925 1FTNF20F7YEA2924
1FTSW31F2XEA85 68 1FTSW31FXXEF0317 1FUW3MCA5TH83474 1FV6TMCB2XHB15 4 7
1GCDC14C1DF36914 1GCGC2 4J5KE11959 1GCHK33F6SF00630 1GCHK34F3PE22487
1GDM7H1J2VJ502 60 1GDM7H1J4MJ50181 1GDP7D1G2KV50785 1HSHBAHN2WH5 4042
1HSHBAUN 4 TH3 9913 1HSHBAUN8RH59818 1HSHBGEN5MH35828 1HSHBN6N3RH53727
1HSHGG2R1LH25779 1HSHGG2R2LH25779 1HSHGG8R5LH25780 1HSSDAAN6RH58838
1HTLCHXPXHHA2 58 6 1HTLDTVN9JH52654 1HTMJABK2TA01222 1HTSCAAM5TH36905
1HTSCPEM9PH49141 1HTSDAAN4TH31050 1HTSDPNP3NH43520 1M2AA07Y7NW00312
1M2P28 6C4WM03619 1MZK193C9XM00723 2GHYT82J5B350049 2HSFMALRXTC05227
3B7KC2364XG23502 3B7KE23C7PM17038 3B7KF2363XG14345 3B7KF23D1VG83674
62575_255271 68112P_255250 6L57NAE606815_25 73222_255242 80145_255276
B61T-41058-67_25 CRC_E_24151_2558 CRC_E_24213_2559 CRC_E_242 6_25577
CRC_E_2 4 4 5_2 5579 CRC_E_2 48 9_2 5583 CRC_E_2491_25583 E_24_3_101E_24_3
E_2 4_3_i ° 2 E_2 4_3 E_2 4_3_10 3 E_2 4_3 E_24_3_104E_24_3 E_24_3_105E_24_3
E_24_3_i°6E_24_3 E_24_3_107E_24_3 E_24_3_108E_24_3 F4693115465_2550
F4693115465_2552 HDD100_1 HDD101_1 HDD102_1 HDD103_1 HDD104_1 HDD105_1
HDD10 6_1 HDD107_1 HDD108_1 HDD109_1 HDD10_1 HDD110_1 HDD111_1 HDD112_1
HDD113_1 HDD116_1 HDD117_1 HDD119_1 HDD11_1 HDD120_1 HDD121_1 HDD122_1
HDD123_1 HDD124_1 HDD125_1 HDD126_1 HDD129_1 HDD12_1 HDD130_1 HDD131_1
HDD132_1 HDD133_1 HDD134_1 HDD135_1 HDD136_1 HDD137_1 HDD138_1 HDD13_1
HDD141_1 HDD147_1 HDD148_1 HDD149_1 HDD14_1 HDD150_1 HDD151_1 HDD152_1
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-29
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 37
15:39 Friday, December 7, 2001
The GLM Procedure
HDD153_1 HDD154_1 HDD155_1 HDD156_1 HDD157_1 HDD158_1 HDD159_1 HDD15_1
HDD160_1 HDD161_1 HDD162_1 HDD163_1 HDD164_1 HDD165_1 HDD166_1 HDD167_1
HDD168_1 HDD169_1 HDD16_1 HDD170_1 HDD171_1 HDD172_1 HDD173_1 HDD174_1
HDD175_1 HDD17 6_1 HDD177_1 HDD178_1 HDD179_1 HDD17_1 HDD180_1 HDD181_1
HDD182_1 HDD183_1 HDD184_1 HDD185_1 HDD186_1 HDD187_1 HDD188_1 HDD189_1
HDD18_1 HDD190_1 HDD191_1 HDD192_1 HDD193_1 HDD194_1 HDD195_1 HDD196_1
HDD197_1 HDD198_1 HDD19_1 HDD1_1 HDD20_1 HDD211_1 HDD212_1 HDD213_1 HDD214_1
HDD215_1 HDD216_1 HDD217_1 HDD218_1 HDD219_1 HDD21_1 HDD220_1 HDD224_1
HDD225_1 HDD22 6_1 HDD227_1 HDD228_1 HDD229_1 HDD22_1 HDD230_1 HDD231_1
HDD233_1 HDD234_1 HDD235_1 HDD236_1 HDD237_1 HDD238_1 HDD239_1 HDD23_1
HDD240_1 HDD241_1 HDD242_1 HDD24_1 HDD25_1 HDD26_1 HDD2_1 HDD3_1 HDD42_1
HDD43_1 HDD44_1 HDD45_1 HDD46_1 HDD47_1 HDD48_1 HDD49_1 HDD4_1 HDD50_1 HDD51_1
HDD52_1 HDD5_1 HDD61_1 HDD62_1 HDD63_1 HDD64_1 HDD65_1 HDD66_1 HDD67_1 HDD68_1
HDD69_1 HDD6_1 HDD70_1 HDD71_1 HDD72_1 HDD73_1 HDD74_1 HDD75_1 HDD76_1 HDD77_1
HDD7 8_1 HDD7 9_1 HDD7_1 HDD80_1 HDD81_1 HDD8_1 HDD92_1 HDD95_1 HDD97_1 HDD98_1
HDD99_1 HDD9_1 JW6CCG1G6XL00381 LFT1D10945D_2552 LTL2D2055D_25527 M-850_255244
RS737LST5695_255 VG6M116A5RB10178 VG6M119X4PB40011 WDBAB33A8CB00493
WDBAB53A7CB00042 YB3L06B14GB03485 Z00LUB12339 2552
sched id
22 5PEAK ART ART-CD CBD FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI IM240 LA92
NYBUS NYCC NYGTC SC03 SCC12 ST01 TRKCBD UDDS D US06 WVUCBD
aeon
altcat
soakcat
1 0
2 H L
3 GE60 LT60 None
Number of observations 1150
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-30
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 38
15:39 Friday, December 7, 2001
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
303 14981.33750
846 309.29962
1149 15290.63712
Mean Square
49.44336
0.36560
F Value
135.24
Pr > F
<.0001
R-Square
0.979772
Coeff Var
7.747755
Root MSE
0.604651
gco2_s Mean
7. 804205
Source
msid_cause
sched_id
avgtotpower
soakcat
altcat
aeon
DF
282
19
1
1
0
0
Type I SS
13427.46076
1516.95620
26.85033
10.07021
0.00000
0.00000
Mean Square
47.61511
79.83980
26.85033
10.07021
F Value
130.24
218.38
73. 44
27.54
Pr > F
<.0001
<.0001
<.0001
<.0001
Source
msid_cause
sched_id
avgtotpower
soakcat
DF
279
18
1
1
Type II SS
1749.034749
370.044912
26.850332
10. 070206
Mean Square
6.268942
20.558051
26.850332
10. 070206
F Value
17.15
56.23
73. 44
27.54
Pr > F
<.0001
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-31
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 39
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Source
altcat
aeon
DF
0
0
Type II SS
0.000000
0.000000
Mean Square
F Value
Pr > F
Parameter
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid cause
1B6MM36C3NS69029
1B7KC2 6C6SS2 6540
1B7KE2 6C9MS33819
1B7KF2361YJ14 661
1B7KF2364XJ5954 6
1B7KF2368WJ23770
1B7KF2 6C0RS577 67
1B7KF2 6C9RS577 67
1B7KM2 683MS23882
1B7KM2 6C2MS35053
1CYCCM482WT04319
1FDNF80C1SVA6790
1FDNK64P1LVA3279
1FDPK74CXRVA2385
1FDXD80U9KVA2380
1FDXF80E2TVA1844
1FDXF80E9TVA1777
1FDXK74P0KVA1321
1FDXR3 0 4 0UA3 9153
1FDXR8 0 4 6HVA4 483
1FDXR8 047 GVA3 884
Estimate
6.35992714
-0.68915124
-0.26646773
-0.22178220
-0.56613893
0.08311700
-0.33151085
-0.24062747
-0.70900253
-0.67525797
0.01874614
2.86633470
-2.51345029
-3.44289644
-2.08729365
-1.99155570
-0.82076830
-1.26561273
-1.87473687
-1.19832363
-0.61126246
-0.31633166
Standard
Error
0.54985733
0.63358733
0.54311838
0.55061878
0.54808402
0.54767469
0.53262931
0.61208590
0.61208590
0.63286813
0.61224627
0.29269924
0.31707543
0.31126916
0.30798834
0.29047657
0.30173061
0.27404828
0.29718998
0.29022523
0.45398033
0.29022523
t Value
11.57
-1. 09
-0. 49
-0. 40
-1. 03
0.15
-0. 62
-0.39
-1.16
-1. 07
0. 03
9.79
-7. 93
-11.06
78
86
-2.72
-4. 62
-6. 31
-4.13
-1.35
-1. 09
Pr > |t|
<.0001
0.2770
0.6238
0.6872
0.3019
0.8794
0.5338
0.6943
0.2471
0.2863
0.9756
<.0001
<.0001
<.0001
<.0001
<.0001
0.0067
<.0001
<.0001
<.0001
0.1785
0.2760
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-32
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 49
15:39 Friday, December 7, 2001
Dependent Variable: gco2_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
msid cause
LFT1D10945D 2552
-3.44023176 B
0.28848381
1
1—1
1—1
CO
msid cause
LTL2D2055D 25527
4.44768925 B
0.31616642
14. 07
msid cause
M-850 255244
-2.77818723 B
0.30014909
-9.26
msid cause
RS737LST5695 255
2.20229932 B
0.30149938
7.30
msid cause
VG6M116A5RB10178
-3.42352281 B
0.31866407
-10.74
msid cause
VG6M119X4PB40011
-3.13661767 B
0.28298079
-11. 08
msid cause
WDBAB3 3A8 CB 0 0 4 9 3
-1.04684652 B
0.61139326
-1.71
msid cause
WDBAB53A7CB00042
-0.94834794 B
0.63282785
-1.50
msid cause
YB3L0 6B14GB03485
-3.85817231 B
0.30326967
-12.72
msid cause
Z00LUB12339 2552
0.00000000 B
sched id
5 PEAK
1.20490562 B
0.48865117
2. 47
sched id
ART
7.97042691 B
0.78805239
10.11
sched id
ART-CD
-3.29581182 B
0.21899748
-15.05
sched id
CBD
3.27432394 B
0.49805472
6. 57
sched id
FTP bnl
-3.13211686 B
0.25955294
-12. 07
sched id
FTP bn2
-3.87461220 B
0.24428812
-15.86
sched id
FTP bn3
-3.04465006 B
0.21415346
-14.22
sched id
FWY-E
-2.99059774 B
0.21933180
-13.64
sched id
FWY-G
-4.00382012 B
0.26432804
-15.15
sched id
FWY-HI
-0.49937627 B
0.15698181
-3.18
sched id
IM240
-2.58522024 B
0.31073639
-8.32
sched id
LA92
-2.87334567 B
0.25070241
-11.46
sched id
NYBUS
-0.24714743 B
0.70476000
-0.35
sched id
NYCC
-4.12061029 B
0.25624562
-16.08
sched id
NYGTC
-3.01931028 B
0.77153562
-3. 91
sched id
SC03
-3.01191562 B
0.32070955
-9. 39
sched id
SCC12
-4.08698312 B
0.73630654
-5.55
sched id
ST01
-3.25587217 B
0.23316442
-13.96
/camwheels/cam/epaco2ch4/Doplco2.sas
Pr > |t|
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
0.0872
0.1344
<.0001
0.0139
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
0. 0015
<.0001
<.0001
0.7259
<.0001
<.0001
<.0001
<.0001
<.0001
B2-33
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 50
15:39 Friday, December 7, 2001
Dependent Variable: gco2_s
The GLM Procedure
Parameter
Estimate
Standard
Error t Value Pr > |t|
sched_id
sched_id
sched_id
sched_id
avgtotpower
soakcat
soakcat
soakcat
altcat
altcat
aeon
TRKCBD
UDDS_D
USO 6
WVUCBD
GE60
LT60
None
H
L
0
0.00000000
2.12473125
0.00000000
0.00000000
0.05268809
0.76965258
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.50147309
00614812
14664932
4.24
57
25
<.0001
0001
0001
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-34
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 51
15:39 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
1150
0
17984.54
71686.02
3.3857611
433998.76
hclimit
1150
0
2204.73
8032.12
0.2708609
45604.09
disp
987
163
7.9704012
2.1491541
2.3000000
14. 0117994
testwght
1150
0
23685.42
16113.89
2500.00
75500.00
road hp
1150
0
55.0151357
34.6342766
6.6000000
140.0000000
odometer
1027
123
78089.72
84517.03
33.0000000
478737.00
Pi
1150
0
0.2710268
0.0813613
0
0.5083333
p2
1150
0
0.0288438
0.0407738
0
0.2081967
p3
1150
0
0.0025267
0.0065502
0
0.0415973
p4
1150
0
0.000576662
0. 0023159
0
0.0149750
avgtotpower
1150
0
30.3110709
18.5290821
3.0782612
92.6001332
temp
848
302
76.4680425
3.7304586
35.0000000
90.0000000
rvp
0
1150
mpg
1150
0
8.9984985
6.2656001
1.3200000
36.7300000
co2
1150
0
1615.21
989.1673881
266.4900000
7690.26
gco2
1150
0
6326.54
4152.76
521.9280675
17349.26
gco2 s
1150
0
7.8042047
3.6479828
1. 4228027
21.3937034
ch4
149
1001
0.0056980
0.0114099
0.0010000
0.1170000
gch4
149
1001
0.0146340
0.0237503
0.0011796
0.2084085
mgch4 s
149
1001
0.0281371
0.0569922
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-35
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 52
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
1150
100.00
1150
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
267
23.22
267
23.22
Fed HDV
775
67.39
1042
90. 61
Fed LDT4
81
7. 04
1123
97. 65
Fed LDV
27
2.35
1150
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-36
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 53
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
1951
6
0.
, 52
6
0.
. 52
1953
18
1.
, 57
24
2.
. 09
1954
6
0.
, 52
30
2.
. 61
1963
6
0.
, 52
36
3.
. 13
1966
7
0.
, 61
43
3.
. 74
1967
18
1.
, 57
61
5.
. 30
1969
6
0.
, 52
67
5.
. 83
1970
6
0.
, 52
73
6.
. 35
1974
6
0.
, 52
79
6.
. 87
1976
2
0.
, 17
81
7.
. 04
1977
5
0.
, 43
86
7.
. 48
1978
2
0.
, 17
88
7.
. 65
1979
18
1.
, 57
106
9.
.22
1980
30
2.
, 61
136
11.
. 83
1981
28
2.
, 43
164
14.
.26
1982
13
1.
, 13
177
15.
. 39
1983
4
0.
, 35
181
15.
. 74
1984
13
1.
, 13
194
16.
. 87
1985
20
1.
, 74
214
18.
. 61
1986
19
1.
, 65
233
20.
.26
1987
24
2.
, 09
257
22.
. 35
1988
78
6.
, 78
335
29.
. 13
1989
57
4.
, 96
392
34.
. 09
1990
53
4.
, 61
445
38.
. 70
1991
61
5.
, 30
506
44.
. 00
1992
54
4.
, 70
560
48.
. 70
1993
70
6.
, 09
630
54.
. 78
1994
81
7.
, 04
711
61.
. 83
1995
66
5.
, 74
777
67.
. 57
1996
67
5.
, 83
844
73.
. 39
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-37
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 54
15:39 Friday, December 7, 2001
The
FREQ Procedure
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1997
53
4. 61
897
78. 00
1998
60
5.22
957
83.22
1999
180
15. 65
1137
98. 87
2000
13
1.13
1150
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
589
51.22
589
51.22
DIRECT
519
45.13
1108
96. 35
PFI
42
3. 65
1150
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
596
51. 83
596
51. 83
NONE
476
41.39
1072
93.22
OXID
78
6.78
1150
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-38
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 55
15:39 Friday, December 7, 2001
The
FREQ Procedure
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
113
9. 83
113
9. 83
4
48
4.17
161
14. 00
5
3
0.26
164
14.26
6
719
62.52
883
76.78
8
267
23.22
1150
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
367
31. 91
367
31. 91
CHARGED
26
2.26
393
34.17
NATURAL
101
8.78
494
42. 96
SUPER
9
0.78
503
43. 74
TURBO
647
56.26
1150
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
301
26.17
301
26.17
AUTO
566
49.22
867
75.39
MANUAL
283
24. 61
1150
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-39
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 5 6
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
repairs Frequency Percent Frequency Percent
294
25.57
294
25.57
A
66
5.74
360
31.30
B
32
2.78
392
CO
O
S
758
65. 91
1150
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
0
1150
100.00
1150
100.00
Cumulative
Cumulative
hchigh
Frequency
Percent
Frequency
Percent
76
6. 61
76
6. 61
0
1045
90. 87
1121
97. 48
1
29
2.52
1150
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-40
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 57
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
5 PEAK
117
10.
. 17
117
10.
, 17
ART
2
0.
. 17
119
10.
, 35
ART-CD
40
3.
. 48
159
13.
, 83
CBD
210
18.
.26
369
32.
, 09
FTP bnl
49
4.
.26
418
36.
, 35
FTP bn2
49
4.
.26
467
40.
, 61
FTP bn3
49
4.
.26
516
44.
, 87
FWY-E
18
1.
. 57
534
46.
, 43
FWY-G
18
1.
. 57
552
48.
, 00
FWY-HI
38
3.
. 30
590
51.
, 30
IM240
15
1.
. 30
605
52.
, 61
LA92
12
1.
. 04
617
53.
, 65
NYBUS
2
0.
. 17
619
53.
, 83
NYCC
38
3.
. 30
657
57.
, 13
NYGTC
2
0.
. 17
659
57.
, 30
SC03
6
0.
. 52
665
57.
, 83
SCC12
1
0.
. 09
666
57.
, 91
ST01
68
5.
. 91
734
63.
, 83
TRKCBD
1
0.
. 09
735
63.
, 91
UDDS D
387
33.
. 65
1122
97.
, 57
US0 6
26
2.
.26
1148
99.
, 83
WVUCBD
2
0.
. 17
1150
100.
, 00
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
1150 100.00 1150 100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-41
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 58
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
GE60
83
7.22
83
7.22
LT60
55
4.78
138
12. 00
None
1012
88. 00
1150
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0
1150
100.00
1150
100.00
Cumulative
Cumulative
tempcat
Frequency
Percent
Frequency
Percent
302
26.26
302
26.26
5
2
0.17
304
26. 43
25
824
71. 65
1128
98. 09
35
22
1. 91
1150
100.00
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
H
162
14. 09
162
14. 09
L
988
85. 91
1150
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-42
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions (without temp or oxyind) 59
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
1150
100.00
1150
100.00
oxygenate
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
None
340
810
29. 57
70. 43
340
1150
29. 57
100.00
oxyind
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
D
R
340
516
294
29. 57
44. 87
25.57
340
856
1150
29. 57
74. 43
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-43
-------
Class
msid cause
sched_id
aeon
oxyind
altcat
soakcat
Diesel C02 from MSOD and Spreadsheet Operating Conditions 60
15:39 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Levels Values
45 1B7KC2 6C6SS2 6540
1B7KF2368WJ23770
1FDXR8 047 GVA3 884
1FDXR8 2 E 8 RVAO 853
1FTHX2 5M8 JKA7 736
1FTSW31FXXEF0317
1HSHGG2R2LH25779
2GHYT82J5B350049
3B7KF23D1VG8367 4
B61T-41058-67_25
LTL2D2055D 25527
1B7KE2 6C9MS33819 1B7KF2361YJ14661 1B7KF2364XJ59546
1B7KM2 683MS23882 1FDXR3040UA39153 1FDXR804 6HVA4483
1FDXR8 0 4 9GVA3 915 1FDXR82A4KVA3654 1FDXR82A9HVA4521
1FRDXR82A3KUA399 1FSLRTVNCH495460 1FTHW25F6VEC3180
1FTJW36F4REA3925 1FTNF20F7YEA2924 1FTSW31F2XEA85 68
1GCHK33F6SF00 630 1HSHBGEN5MH35828 1HSHGG2R1LH25779
1HSHGG8R5LH25780 1HSSDAAN6RH58838 1HTSCAAM5TH36905
3B7KC2364XG23502 3B7KE23C7PM17038 3B7KF2363XG14345
62575_255271 68112P_255250 73222_255242 80145_255276
F4 6931154 65_2550 F4693115465_2552 LFT1D10945D_2552
M-850 255244 RS737LST5695 255 Z00LUB12339 2552
15 ART-CD CBD FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 NYCC SC03 SCC12
ST01 UDDS_D US06
1 0
1 D
2 H L
3 GE60 LT60 None
Number of observations 848
NOTE: Due to missing values, only 516 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-44
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 61
15:39 Friday, December 7, 2001
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
60 7087.538050
455 147.753232
515 7235.291282
Mean Square
118.125634
0.324732
F Value
363.76
Pr > F
<.0001
R-Square
0.979579
Coeff Var
8.756728
Root MSE
0.569853
gco2_s Mean
6.507601
Source
sched_id
msid_cause
avgtotpower
soakcat
temp
aeon
oxyind
altcat
DF
14
43
1
1
1
0
0
0
Type I SS
6080.329986
985.802077
11.158821
10. 070206
0.176959
0.000000
0.000000
0.000000
Mean Square
434.309285
22.925630
11.158821
10. 070206
0.176959
F Value
1337.44
70. 60
34.36
31. 01
0.54
Pr > F
<.0001
<.0001
<.0001
<.0001
0.4608
Source
sched_id
msid cause
DF Type II SS
12 325.8004985
42 280.5448045
Mean Square
27.1500415
6.6796382
F Value
83. 61
20.57
Pr > F
<.0001
<.0001
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-45
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 62
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Source
DF
Type II SS
Mean Square
F
Value
Pr > F
avgtotpower
1
11.1724238
11.1724238
34. 41
<.0001
soakcat
1
10. 0201052
10.0201052
30. 86
<.0001
temp
1
0.1769587
0.1769587
0.54
0.4608
aeon
0
0.0000000
oxyind
0
0.0000000
altcat
0
0.0000000
Standard
Parameter
Estimate
Error
t
Value
Pr > |t|
Intercept
5.437737290 B
1.16636645
4. 66
<.0001
sched id
ART-CD
-2.887529816 B
0.32455472
-8. 90
<.0001
sched id
CBD
5.059762408 B
0.29394502
17.21
<.0001
sched id
FTP bnl
-2.740629168 B
0.35521147
-7.72
<.0001
sched id
FTP bn2
-3.358074629 B
0. 40478725
-8.30
<.0001
sched id
FTP bn3
-2.685906213 B
0.32756937
-8.20
<.0001
sched id
FWY-E
-2.663847265 B
0.27939309
-9. 53
<.0001
sched id
FWY-G
-3.472265427 B
0. 40030316
-8. 67
<.0001
sched id
FWY-HI
-0.576057760 B
0.15557043
-3.70
0. 0002
sched id
LA92
-2.500472943 B
0.32989468
-7.58
<.0001
sched id
NYCC
-3.532472649 B
0.42387653
-8.33
<.0001
sched id
SC03
-2.554658430 B
0.40841380
-6.26
<.0001
sched id
SCC12
-3.597594492 B
0.76693543
-4. 69
<.0001
sched id
ST01
-2.829330008 B
0.35432122
-1.99
<.0001
sched id
UDDS D
2.380513845 B
0.31923819
7.46
<.0001
sched id
USO 6
0.000000000 B
msid cause
1B7KC2 6C6SS2 6540
0.747552981 B
0.20571867
3. 63
0.0003
msid cause
1B7KE2 6C9MS33819
0.803943013 B
0.22334134
3. 60
0. 0004
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-46
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 63
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1B7KF2361YJ14 661
0.545247015 B
0.26157721
2. 08
0.0377
msid
cause
1B7KF2364XJ5954 6
1.175188938 B
0.23843345
4. 93
<.0001
msid
cause
1B7KF2368WJ23770
0.760263846 B
0.19486910
3. 90
0.0001
msid
cause
1B7KM2 683MS23882
0.444996372 B
0.37640532
1.18
0.2377
msid
cause
1FDXR3 0 4 0UA3 9153
-0.695532593 B
0.28581996
1
K)
CO
0. 0153
msid
cause
1FDXR8 0 4 6HVA4 483
-0.108471429 B
0. 43581782
1
O
K)
Cn
0.8036
msid
cause
1FDXR8 047 GVA3 884
0.186459378 B
0.28581996
0. 65
0.5145
msid
cause
1FDXR8 0 4 9GVA3 915
-0.502128042 B
0.33798257
-1. 49
0.1381
msid
cause
1FDXR82A4KVA3654
-0.285157812 B
0.32977884
CO
O
1
0.3877
msid
cause
1FDXR82A9HVA4521
-0.334874737 B
0.27195832
-1.23
0.2188
msid
cause
1FDXR8 2 E 8 RVAO 853
-0.982325680 B
0.36853102
-2. 67
0.0080
msid
cause
1FRDXR82A3KUA399
0.154524458 B
0.30416683
0.51
0.6117
msid
cause
1FSLRTVNCH495460
0.330077140 B
0.28817060
1.15
0.2526
msid
cause
1FTHW2 5 F 6VEC3180
1.110473443 B
0.22582160
4. 92
<.0001
msid
cause
1FTHX2 5M8 JKA7 736
1.529764779 B
0.20265599
7.55
<.0001
msid
cause
1FTJW36F4REA3925
0.246572120 B
0.22547440
1. 09
0.2747
msid
cause
1FTNF20F7YEA2924
0.871863878 B
0.21329794
4. 09
<.0001
msid
cause
1FTSW31F2XEA85 68
1.441579414 B
0.19664337
7.33
<.0001
msid
cause
1FTSW31FXXEF0317
1.132364651 B
0.18282281
6.19
<.0001
msid
cause
1GCHK33F6SF00 630
1.626973499 B
0.22351471
7.28
<.0001
msid
cause
1HSHBGEN5MH35828
-0.009820124 B
0.28581996
1
o
o
CO
0. 9726
msid
cause
1HSHGG2R1LH25779
1.347495557 B
0.27195832
4. 95
<.0001
msid
cause
1HSHGG2R2LH25779
1.369484889 B
0.34475564
3. 97
<.0001
msid
cause
1HSHGG8R5LH25780
1.809992517 B
0.31670225
5.72
<.0001
msid
cause
1HSSDAAN6RH58838
-0.586705128 B
0.46128670
-1.27
0.2041
msid
cause
1HTSCAAM5TH36905
0.497426664 B
0. 42312102
1.18
0.2404
msid
cause
2GHYT82J5B350049
-1.155981299 B
0.45773140
-2.53
0.0119
msid
cause
3B7KC2364XG23502
0.231446255 B
0.20393708
1.13
0.2570
/camwheels/cam/epaco2ch4/Doplco2. sas
B2-47
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 64
15:39 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid cause
3B7KE23C7PM17038
0.824143980 B
0
22336603
3. 69
0.0003
msid cause
3B7KF2363XG14345
0.982945868 B
0
19420637
5.06
<.0001
msid cause
3B7KF23D1VG8367 4
0.000000000 B
msid cause
62575 255271
-2.428127590 B
0
27704599
-8.76
<.0001
msid cause
68112P 255250
2.764927967 B
0
40390496
6. 85
<.0001
msid cause
73222 255242
1.380136831 B
0
38271238
3. 61
0.0003
msid cause
80145 255276
-1.896185013 B
0
27024207
-7. 02
<.0001
msid cause
B61T-41058-67 25
-3.632166626 B
0
30073050
1
1—1
K)
O
CO
<.0001
msid cause
F4693115465 2550
-1.531241143 B
0
48565337
-3.15
0. 0017
msid cause
F4693115465 2552
-0.279324237 B
0
35723251
-0.78
0. 4347
msid cause
LFT1D10945D 2552
-3.358343698 B
0
28856965
-11.64
<.0001
msid cause
LTL2D2055D 25527
4.037311685 B
0
37939880
10. 64
<.0001
msid cause
M-850 255244
-2.572168374 B
0
33541120
-1.61
<.0001
msid cause
RS737LST5695 255
1.898227713 B
0
33150332
5.73
<.0001
msid cause
Z00LUB12339 2552
0.000000000 B
avgtotpower
0. 070189368
0
01196631
5. 87
<.0001
soakcat
GE60
0.767854782 B
0
13823110
5.55
<.0001
soakcat
LT60
0.000000000 B
soakcat
None
0.000000000 B
temp
-0.010187500
0
01380049
-0.74
0.4608
aeon
0
0.000000000 B
oxyind
D
0.000000000 B
altcat
H
0.000000000 B
altcat
L
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-48
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 65
15:39 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
848
0
24372.45
82556.65
3.3857611
433998.76
hclimit
848
0
2738.66
8919.49
0.2708609
45604.09
disp
774
74
7.7009400
2.2496378
2.3000000
14.0117994
testwght
848
0
19515.59
15219.51
2500.00
62900.00
road hp
848
0
45.7536365
33.4285243
6.6000000
140. 0000000
odometer
745
103
65386.86
71926.61
33.0000000
353000.00
Pi
848
0
0.2733738
0.0901181
0
0.5083333
p2
848
0
0.0355413
0.0450173
0
0.2081967
p3
848
0
0.0031709
0.0075048
0
0. 0415973
p4
848
0
0.000782030
0.0026674
0
0.0149750
avgtotpower
848
0
27.7643829
17. 8507903
3.0782612
85.9992500
temp
848
0
76.4680425
3.7304586
35.0000000
90.0000000
rvp
0
848
mpg
848
0
10.7216383
6. 4397420
1.7800000
36.7300000
co2
848
0
1290.49
812.3864084
266.4900000
5547.01
gco2
848
0
5775.75
4131.47
521.9280675
16974.34
gco2 s
848
0
6.9456752
3.5445340
1. 4228027
19.5878861
ch4
149
699
0.0056980
0.0114099
0.0010000
0.1170000
gch4
149
699
0.0146340
0.0237503
0.0011796
0.2084085
mgch4 s
149
699
0.0281371
0.0569922
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-49
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 66
15:39 Friday, December 7, 2001
The
FREQ Procedure
Cumulative
Cumulative
fueltype
Frequency
Percent
Frequency
Percent
DIES
848
100.00
848
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
241
K)
CO
K)
241
K)
CO
K)
Fed HDV
501
59.08
742
87.50
Fed LDT4
81
9. 55
823
97. 05
Fed LDV
25
2. 95
848
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-50
-------
esel
l_yr
1951
1953
1954
1963
1966
1967
1969
1970
1974
1977
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
C02 from MSOD and Spreadsheet Operating Conditions 67
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
Frequency Percent Frequency Percent
6
0.71
6
0.71
18
2.12
24
2. 83
6
0.71
30
3.54
6
0.71
36
4.25
7
0. 83
43
5. 07
18
2.12
61
7.19
6
0.71
67
7. 90
6
0.71
73
8. 61
6
0.71
79
9. 32
1
0.12
80
9. 43
11
1.30
91
10.73
6
0.71
97
11. 44
7
0. 83
104
12.26
2
0.24
106
12.50
12
1. 42
118
1—1
CO
K)
19
2.24
137
16.16
16
1. 89
153
1—1
CO
o
21
2. 48
174
20.52
50
5. 90
224
26. 42
40
4.72
264
CO
1—1
1—1
CO
33
3.89
297
35. 02
33
3.89
330
38. 92
17
2. 00
347
40. 92
46
5. 42
393
46. 34
58
6.84
451
53.18
61
7.19
512
60.38
38
4. 48
550
64. 86
45
5.31
595
70.17
60
7. 08
655
77.24
180
21.23
835
98. 47
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-51
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 68
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
2000
13
1.53
848
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
295
34.79
295
34.79
DIRECT
519
61.20
814
95. 99
PFI
34
4. 01
848
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
302
35. 61
302
35. 61
NONE
468
55.19
770
90. 80
OXID
78
9.20
848
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
24
2. 83
24
2. 83
4
6
0.71
30
3.54
5
3
0.35
33
3.89
6
563
66. 39
596
70.28
8
252
29. 72
848
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-52
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 69
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
aspirated Frequency Percent Frequency Percent
278
32.78
278
32.78
CHARGED
4
0. 47
282
33.25
NATURAL
99
11. 67
381
44. 93
SUPER
6
0.71
387
45. 64
TURBO
461
54.36
848
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
7
0. 83
7
0. 83
AUTO
5 62
66.27
569
67.10
MANUAL
279
32. 90
848
100.00
Cumulative
Cumulative
repairs
Frequency
Percent
Frequency
Percent
A
66
7.78
66
7.78
B
32
3. 77
98
11.56
S
750
88. 44
848
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
0
848
100.00
848
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-53
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 70
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
3 0.35 3 0.35
0 819 96.58 822 96.93
1 26 3.07 848 100.00
Cumulative Cumulative
sched id Frequency Percent Frequency Percent
5 PEAK
117
13.
. 80
117
13.
, 80
ART-CD
40
4.
. 72
157
18.
, 51
CBD
38
4.
. 48
195
23.
, 00
FTP bnl
49
5.
. 78
244
28.
, 77
FTP bn2
49
5.
. 78
293
34.
, 55
FTP bn3
49
5.
. 78
342
40.
, 33
FWY-E
18
2.
. 12
360
42.
, 45
FWY-G
18
2.
. 12
378
44.
, 58
FWY-HI
38
4.
. 48
416
49.
,06
IM240
7
0.
. 83
423
49.
, 88
LA92
12
1.
. 42
435
51.
, 30
NYCC
38
4.
. 48
473
55.
, 78
SC03
6
0.
. 71
479
56.
, 49
SCC12
1
0.
. 12
480
56.
, 60
ST01
68
8.
. 02
548
64.
, 62
UDDS D
272
32.
. 08
820
96.
, 70
US0 6
26
3.
. 07
846
99.
,76
WVUCBD
2
0.
.24
848
100.
, 00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-54
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 71
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
848
100.00
848
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
GE60
83
9.79
83
9.79
LT60
55
6.49
138
16.27
None
710
83. 73
848
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0
848
100.00
848
100.00
Cumulative
Cumulative
tempcat
Frequency
Percent
Frequency
Percent
5
2
0.24
2
0.24
25
824
97.17
826
97. 41
35
22
2.59
848
100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-55
-------
Diesel C02 from MSOD and Spreadsheet Operating Conditions 72
15:39 Friday, December 7, 2001
The FREQ Procedure
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
H
86
10.14
86
10.14
L
7 62
89.86
848
100.00
Cumulative
Cumulative
rvpind
Frequency
Percent
Frequency
Percent
848 100.00 848 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
332 39.15 332 39.15
None 516 60.85 848 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
332 39.15 332 39.15
D 516 60.85 848 100.00
/camwheels/cam/epaco2ch4/Doplco2.sas
B2-56
-------
Appendix B3
Dependence of gC02/s for Diesel Vehicles on Special Conditions
-------
Diesel C02 Soak Time (FTP bnl VS. FTP bn3)
The GLM Procedure
Class Level Information
1
16:05 Friday, December 7, 2001
Class
msid cause
Levels Values
35 1B6MM36C3NS69029
1B7KF2364XJ5954 6
1B7KM2 683MS23882
1FTHX2 6F0SEA8323
1FTSW31FXXEF0317
3B7KC2364XG23502
6L57NAE606815 25
E_2 4_3_i ° 4 E_2~4_3
E 24 3 108E 24 3
1B7KC2 6C6SS2 6540
1B7KF2368WJ23770
1B7KM2 6C2MS35053
1FTJW36F4REA3925
1GCGC2 4J5KE11959
3B7KE23C7PM17038
E_2 4_3_1 °1E_2 4_3
E_2 4_3_1 ° 5 E_2 4_3
WDBAB3 3A8 CB 0 0 4 9 3
1B7KE2 6C9MS33819
1B7KF2 6C0RS577 67
1FTHW2 5 F 6VEC3180
1FTNF20F7YEA2924
1GCHK33F6SF00 630
3B7KF2363XG14345
E_2 4_3_1 ° 2 E_2 4_3
E_2 4_3_1 ° 6E_2 4_3
WDBAB53A7CB00042
1B7KF2361YJ14661
1B7KF2 6C9RS577 67
1FTHX2 5M8 JKA7 736
1FTSW31F2XEA85 68
1GCHK34F3PE22487
3B7KF23D1VG8367 4
E_24_3_103E_24_3
E 24 3 107E 24 3
sched id
2 FTP bnl FTP bn3
altcat
1 0
1 L
Number of observations 98
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-1
-------
Diesel C02 Soak Time (FTP bnl VS. FTP bn3)
2
Dependent Variable: gco2_s
Source
Model
Error
Corrected Total
16:05 Friday, December 7, 2001
The GLM Procedure
Sum of
DF Squares
37 58.08392691
60 1.14563565
97 59.22956256
Mean Square
1.56983586
0.01909393
F Value
82.22
Pr > F
<.0001
R-Square
0.980658
Coeff Var
3.334919
Root MSE
0.138181
gco2_s Mean
4.143452
Source
msid_cause
sched_id
avgtotpower
temp
aeon
altcat
DF
34
1
1
1
0
0
Type I SS
45.62470483
11.40174739
1.02253194
0.03494274
0.00000000
0.00000000
Mean Square
1.34190308
11.40174739
1.02253194
0.03494274
F Value
70.28
597.14
53. 55
1. 83
Pr > F
<.0001
<.0001
<.0001
0.1812
Source
msid_cause
sched_id
avgtotpower
temp
DF Type II SS
34 22.23068120
1 11.40174739
1 1.02253194
1 0.03494274
Mean Square
0.65384356
11.40174739
1.02253194
0.03494274
F Value
34.24
597.14
53. 55
1. 83
Pr > F
<.0001
<.0001
<.0001
0.1812
/camwheels/cam/epaco2ch4/Doplco2 SR.sas
B3-2
-------
Diesel C02 Soak Time (FTP bnl VS. FTP bn3)
Dependent Variable: gco2_s
Source
aeon
altcat
DF
0
0
The GLM Procedure
Type II SS
0.00000000
0.00000000
Mean Square
F Value
Pr > F
3
16:05 Friday, December 7, 2001
Parameter
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid cause
1B6MM36C3NS69029
1B7KC2 6C6SS2 6540
1B7KE2 6C9MS33819
1B7KF2361YJ14 661
1B7KF2364XJ5954 6
1B7KF2368WJ23770
1B7KF2 6C0RS577 67
1B7KF2 6C9RS577 67
1B7KM2 683MS23882
1B7KM2 6C2MS35053
1FTHW2 5 F 6VEC3180
1FTHX2 5M8 JKA7 736
1FTHX2 6F0SEA8323
1FTJW36F4REA3925
1FTNF20F7YEA2924
1FTSW31F2XEA85 68
1FTSW31FXXEF0317
1GCGC2 4J5KE11959
1GCHK33F6SF00 630
1GCHK34F3PE22487
3B7KC2364XG23502
Estimate
0.774667987
0.133901238
0.228706910
0. 470363869
0.156116259
0.969534473
0.532827679
0.636582570
0.123917042
0.132555521
0.910973999
0.698210141
1.623211302
0.490688373
0.077418105
0.634221191
1.235266996
1.011426840
1.195262490
0.987717437
0.567350403
-0.038646987
Standard
Error
0. 99864975
0.15019799
0.14344765
0.13901772
0.17559580
0.14761126
0.11772561
0.14778343
0.14778343
0.13910628
0.15019799
0.15808282
0.14693700
0.15019799
0.15750448
0.14888175
0.13341417
0.13181438
0.14256877
0.16220029
0.15019799
0.15130270
t Value
0.78
0. 89
1.59
3. 38
0. 89
6. 57
4.53
4.31
0. 84
0. 95
6. 07
4. 42
11. 05
3.27
0. 49
4.26
9.26
7. 67
8.38
6.09
3.78
-0.26
Pr > |t|
0.4410
0.3762
0.1161
0.0013
0.3775
<.0001
<.0001
<.0001
0. 4051
0.3445
<.0001
<.0001
<.0001
0.0018
0.6248
<.0001
<.0001
<.0001
<.0001
<.0001
0.0004
0.7993
/camwheels/cam/epaco2ch4/Doplco2 SR.sas
B3-3
-------
Diesel C02 Soak Time (FTP_bnl VS. FTP_bn3) 4
16:05 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid cause
3B7KE23C7PM17038
0.356236012 B
0.14022787
2.54
0.0137
msid cause
3B7KF2363XG14345
0.757592292 B
0.11772561
6.44
<.0001
msid cause
3B7KF23D1VG8367 4
-0.050524244 B
0.14941700
-0.34
0.7364
msid cause
6L57NAE606815 25
0.498824932 B
0.13868577
3. 60
0. 0007
msid cause
E 24 3 101E 24 3
0.825822811 B
0.15310500
5.39
<.0001
msid cause
E 24 3 102E 24 3
0.374920430 B
0.13885998
2.70
0.0090
msid cause
E 24 3 103E 24 3
-0.693772625 B
0.14951851
-4. 64
<.0001
msid cause
E 24 3 104E 24 3
0.731519614 B
0.14384803
5. 09
<.0001
msid cause
E 24 3 105E 24 3
0.023103964 B
0.14034842
0.16
0.8698
msid cause
E 24 3 106E 24 3
-0.918917587 B
0.14257667
-6. 45
<.0001
msid cause
E 24 3 107E 24 3
1.372028878 B
0.14674057
9. 35
<.0001
msid cause
E 24 3 108E 24 3
1.417149560 B
0.14503884
9. 77
<.0001
msid cause
WDBAB3 3A8 CB 0 0 4 9 3
-0.125368907 B
0.13818078
1
o
1—1
0.3679
msid cause
WDBAB53A7CB00042
0.000000000 B
sched id
FTP bnl
0.682185785 B
0.02791673
24. 44
<.0001
sched id
FTP bn3
0.000000000 B
avgtotpower
0. 079757191
0.01089881
7.32
<.0001
temp
0.017823055 B
0.01317502
1.35
0.1812
aeon
0
0.000000000 B
altcat
L
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-4
-------
Diesel C02 Soak Time (FTP_bnl VS. FTP_bn3) 5
16:05 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
98
0
8.5960636
2.4409363
3.4000000
12.6860979
hclimit
98
0
0.7236180
0.1747006
0.3284634
1.0639953
disp
86
12
6.1844832
1.0831607
3.0000000
7.3000000
testwght
98
0
6358.94
1428.57
2625.00
9200.00
road hp
98
0
16.2618226
4.5376183
6.7000000
25.2192471
odometer
78
20
57950.69
62113.54
33.0000000
262378.00
Pi
98
0
0.3386139
0
0.3386139
0.3386139
p2
98
0
0.0475248
0
0. 0475248
0. 0475248
p3
98
0
0
0
0
0
p4
98
0
0
0
0
0
avgtotpower
98
0
14.0480058
3.2633143
5.9126161
20.9936083
temp
98
0
74.7346939
1. 9976843
70. 0000000
82. 0000000
rvp
0
98
mpg
98
0
16.1999906
6.2823788
2.6234476
36.7300000
co2
98
0
581.5326837
109.6718495
277.6520000
829.4400000
gco2
98
0
2088.30
393.8346579
997.0560446
2978.54
gco2 s
98
0
4.1434524
0.7814180
1.9782858
5.9098057
ch4
22
76
0.0037273
0.0043989
0.0010000
0.0200000
gch4
22
76
0.0133847
0.0157967
0.0035910
0. 0718206
mgch4 s
22
76
0.0265972
0.0312273
0.0071230
0.1417063
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-5
-------
Diesel C02 Soak Time (FTP_bnl VS. FTP_bn3) 6
16:05 Friday, December 7, 2001
The
FREQ Procedure
Cumulative
Cumulative
fueltype
Frequency
Percent
Frequency
Percent
DIES
98
100.00
98
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
22
22. 45
22
22. 45
Fed HDV
48
48. 98
70
71. 43
Fed LDT4
14
14.29
84
85.71
Fed LDV
14
14.29
98
100.00
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-6
-------
l_yr
1980
1981
1982
1984
1985
1988
1989
1991
1992
1993
1994
1995
1997
1998
1999
2000
type
iesel C02 Soak
Time (FTP
bnl VS. FTP
bn3)
16:05 Friday,
The
FREQ Procedure
Cumulative
Cumulative
Frequency
Percent
Frequency
Percent
2
2. 04
2
2. 04
2
2. 04
4
4. 08
4
4. 08
8
8.16
4
4. 08
12
12.24
2
2. 04
14
14.29
4
4. 08
18
18.37
2
2. 04
20
20. 41
10
10.20
30
30. 61
2
2. 04
32
32. 65
8
8.16
40
40. 82
10
10.20
50
51. 02
8
8.16
58
59.18
6
6.12
64
65.31
6
6.12
70
71. 43
26
26. 53
96
97. 96
2
2. 04
98
100.00
Cumulative
Cumulative
Frequency
Percent
Frequency
Percent
7
2001
16
60
22
16. 33
61.22
22. 45
16
76
16. 33
77.55
100.00
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-7
-------
Diesel C02 Soak Time (FTP bnl VS. FTP bn3)
The FREQ Procedure
16:05 Friday, December 7, 2001
cat_type Frequency
Percent
Cumulative Cumulative
Frequency Percent
NONE
OXID
16
68
14
16. 33
69. 39
14.29
16
84
16. 33
85.71
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
4
4
CO
o
4
CO
o
5
2
2. 04
6
6.12
6
38
38.78
44
44. 90
8
54
55.10
98
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
CHARGED
NATURAL
TURBO
2
24
72
2. 04
24. 49
73. 47
2
26
2. 04
26. 53
100.00
tran_type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
74
24
75.51
24. 49
74
75.51
100.00
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-8
-------
Diesel C02 Soak Time (FTP_bnl VS. FTP_bn3) 9
16:05 Friday, December 7, 2001
The
FREQ Procedure
Cumulative
Cumulative
repairs
Frequency
Percent
Frequency
Percent
S
98
100.00
98
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
0
98
100.00
98
100.00
Cumulative
Cumulative
hchigh
Frequency
Percent
Frequency
Percent
0
86
87.76
86
87.76
1
12
12.24
98
100.00
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
FTP bnl
49
50. 00
49
50. 00
FTP bn3
49
50. 00
98
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
98 100.00 98 100.00
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-9
-------
Diesel C02 Soak Time (FTP bnl VS. FTP bn3)
10
16:05 Friday, December 7, 2001
The FREQ Procedure
soakcat Frequency Percent
Cumulative Cumulative
Frequency Percent
GE60
LT60
49
49
50. 00
50. 00
49
50. 00
100.00
Cumulative Cumulative
aeon Frequency Percent Frequency Percent
0
100.00
100.00
tempcat Frequency Percent
25 98 100.00
Cumulative
Frequency
Cumulative
Percent
100.00
altcat Frequency Percent
L 98 100.00
Cumulative
Frequency
Cumulative
Percent
100.00
rvpind Frequency
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
100.00
/camwheels/cam/epaco2ch4/Doplco2 SR.sas
B3-10
-------
Diesel C02 Soak Time (FTP_bnl VS. FTP_bn3) 11
16:05 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
36 36.73 36 36.73
None 62 63.27 98 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
36 36.73 36 36.73
D 62 63.27 98 100.00
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-11
-------
Class
msid cause
sched_id
aeon
oxyind
altcat
hot cold
Diesel C02 Hot vs. Cold Start
The GLM Procedure
Class Level Information
12
16:05 Friday, December 7, 2001
Levels Values
64 HDD10 6_1 HDD107_
HDD113_1 HDD116_
HDD123_1 HDD124_
HDD16_1 HDD17_1
HDD25_1 HDD2 6_1
HDD48_1 HDD49_1
HDD65_1 HDD66_1
3 ART CBD UDDS_D
1 0
1 R
2 H L
2 C H
1 HDD108_1 HDD109_1 HDD10_1 HDD110_1 HDD111_1 HDD112_1
1 HDD117_1 HDD119_1 HDD11_1 HDD120_1 HDD121_1 HDD122_1
"l HDD125_1 HDD126_1 HDD12_1 HDD13_1 HDD141_1 HDD14_1 HDD15_1
~HDD18_1 HDD19_1 HDD1_1 HDD20_1 HDD21_1 HDD22_1 HDD23_1 HDD24_1
HDD2_1 HDD3_1 HDD42_1 HDD43_1 HDD44_1 HDD45_1 HDD46_1 HDD47_1
HDD4_1 HDD50_1 HDD51_1 HDD52_1 HDD5_1 HDD62_1 HDD63_1 HDD64_1
HDD67 1 HDD68 1 HDD69 1 HDD6 1 HDD7 1 HDD8 1 HDD9 1
Number of observations
137
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-12
-------
Diesel C02 Hot vs. Cold Start
13
16:05 Friday, December 7, 2001
The GLM Procedure
it Variable: gco2 s
Sum of
Source
DF
Squares
Mean Square
F
Value
Pr > F
Model
67
1080.803022
16.131388
42.14
<.0001
Error
69
26.415186
0.382829
Corrected Total
136
1107.218208
R-Square
Coeff Var Root
MSE gco2 s
Mean
0. 976143
5
474127 0.618732 11.
30284
Source
DF
Type I SS
Mean Square
F
Value
Pr > F
msid cause
63
984.9543664
15.6341963
40. 84
<.0001
sched id
2
68. 8906148
34.4453074
89. 98
<.0001
hot cold
1
16.8881267
16.8881267
44.11
<.0001
avgtotpower
1
10.0699147
10.0699147
26. 30
<.0001
aeon
0
0.0000000
oxyind
0
0.0000000
altcat
0
0.0000000
Source
DF
Type II SS
Mean Square
F
Value
Pr > F
msid cause
62
537.8723811
8.6753610
22. 66
<.0001
sched id
2
18.3830908
9.1915454
24. 01
<.0001
hot cold
1
18.0625235
18.0625235
47.18
<.0001
/camwheels/cam/epaco2ch4/Doplco2 SR.sas
B3-13
-------
Diesel C02 Hot vs. Cold Start
14
16:05 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2 s
Source
DF Type II SS
Mean Square
F Value
Pr >
avgtotpower
1 10.0699147
10.0699147
26. 30
<. ooc
aeon
0 0.0000000
oxyind
0 0.0000000
altcat
0 0.0000000
Standard
Parameter
Estimate
Error t
Value
Pr > |t|
Intercept
5.37081707 B
0.72612412
7. 40
<.0001
msid cause
HDD106
1
2.71674258 B
0.78432259
3.46
0.0009
msid cause
HDD107
1
0.41251481 B
0.78719653
0.52
0.6019
msid cause
HDD108
1
1.06239523 B
0.59754241
1.78
0.0798
msid cause
HDD109
1
4.39148323 B
0.58272568
7.54
<.0001
msid cause
HDD10 1
0.65108932 B
0.61873159
1. 05
0.2963
msid cause
HDD110
1
0.05290699 B
0.76690941
0. 07
0.9452
msid cause
HDD111
1
-0.58789569 B
0.65665123
1
o
O
0.3737
msid cause
HDD112
1
0.93181044 B
0.55309952
1. 68
0.0966
msid cause
HDD113
1
4.37827494 B
0.57790485
7.58
<.0001
msid cause
HDD116
1
1.31269001 B
0.55067328
2.38
0.0199
msid cause
HDD117
1
0.37208859 B
0.57184321
0. 65
0.5174
msid cause
HDD119
1
0.62995898 B
0.56870160
1.11
0.2718
msid cause
HDD11 1
2.33661931 B
0.74303116
3.14
0.0025
msid cause
HDD120
1
2.91841349 B
0.65907864
4. 43
<.0001
msid cause
HDD121
1
1.69092654 B
0.57337172
2. 95
0.0043
msid cause
HDD122
1
4.89013836 B
0.68936918
7. 09
<.0001
msid cause
HDD123
1
0.29783964 B
0.59976036
0.50
0.6211
msid cause
HDD124
1
4.02546447 B
0.57497053
7. 00
<.0001
msid cause
HDD125
1
1.60928182 B
0.62301729
2.58
0.0119
/camwheels/cam/epaco2ch4/Doplco2 SR.sas
B3-14
-------
Diesel C02 Hot vs. Cold Start 15
16:05 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
msid
cause
HDD126 1
3.74940690 B
0.58091544
LO
<.0001
msid
cause
HDD12 1
3.20380281 B
0.74303116
4.31
<.0001
msid
cause
HDD13 1
2.40527611 B
0.74303116
3.24
0.0019
msid
cause
HDD141 1
5.34874910 B
0.78784956
6.79
<.0001
msid
cause
HDD14 1
1.04437966 B
0.74303116
1. 41
0.1643
msid
cause
HDD15 1
0.50745983 B
0.74303116
0. 68
0.4969
msid
cause
HDD16 1
1.14836944 B
0.74303116
1.55
0.1268
msid
cause
HDD17 1
2.25374678 B
0.74303116
3. 03
0.0034
msid
cause
HDD18 1
2.99789833 B
0.74303116
4. 03
0.0001
msid
cause
HDD19 1
0.93346973 B
0.74303116
1.26
0.2132
msid
cause
HDD1 1
-0.64130027 B
0.66520551
-0. 96
0.3384
msid
cause
HDD20 1
2.28592159 B
0.76839417
2. 97
0.0040
msid
cause
HDD21 1
2.90177438 B
0.74303116
3. 91
0.0002
msid
cause
HDD22 1
0.82289624 B
0.74303116
1.11
0.2719
msid
cause
HDD23 1
1.31993088 B
0.76839417
1.72
0.0903
msid
cause
HDD24 1
1.99527647 B
0.76839417
2. 60
0. 0115
msid
cause
HDD25 1
0.49811435 B
0.49105075
1. 01
0.3139
msid
cause
HDD2 6 1
3.17356659 B
0.68918551
4. 60
<.0001
msid
cause
HDD2 1
0.16266423 B
0.70373242
0.23
0. 8179
msid
cause
HDD3 1
0.90266322 B
0.70373242
1.28
0.2039
msid
cause
HDD42 1
1.98162080 B
0.78332191
2.53
0.0137
msid
cause
HDD43 1
6.34594247 B
0.78384017
8.10
<.0001
msid
cause
HDD44 1
2.25432915 B
0.78408379
2. 88
0. 0054
msid
cause
HDD45 1
2.10961371 B
0.78408379
2. 69
0.0089
msid
cause
HDD4 6 1
3.44446371 B
0.78320699
4. 40
<.0001
msid
cause
HDD47 1
3.94032972 B
0.76121107
5.18
<.0001
msid
cause
HDD48 1
3.56842670 B
0.60886945
5.86
<.0001
msid
cause
HDD49 1
3.49544448 B
0.78320699
4.46
<.0001
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-15
-------
Diesel C02 Hot vs. Cold Start
16
16:05 Friday, December 7, 2001
Dependent Variable: gco2_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
msid cause
HDD4 1
4.48849359 B
0
62103367
7.23
<.0001
msid cause
HDD50 1
3.88154928 B
0
70320274
5.52
<.0001
msid cause
HDD51 1
2.14211613 B
0
78320025
2.74
0. 0079
msid cause
HDD52 1
2.79769462 B
0
64961181
4.31
<.0001
msid cause
HDD5 1
1.11122755 B
0
74303116
1.50
0.1393
msid cause
HDD62 1
5.28153200 B
0
78320957
6.74
<.0001
msid cause
HDD63 1
5.18517410 B
0
78320957
6. 62
<.0001
msid cause
HDD64 1
5.33880933 B
0
78322000
6. 82
<.0001
msid cause
HDD65 1
12.04972722 B
0
78321769
15.38
<.0001
msid cause
HDD66 1
8.16214482 B
0
78388612
10. 41
<.0001
msid cause
HDD67 1
7.81469667 B
0
78388612
9. 97
<.0001
msid cause
HDD68 1
13.92852955 B
0
78369686
17.77
<.0001
msid cause
HDD69 1
11.72478032 B
0
78388612
14. 96
<.0001
msid cause
HDD6 1
1.58249315 B
0
74303116
2.13
0.0368
msid cause
HDD7 1
-0.13080049 B
0
61873159
-0.21
0. 8332
msid cause
HDD8 1
1.48373528 B
0
61873159
2. 40
0.0192
msid cause
HDD9 1
0.00000000 B
sched id
ART
4.47284778 B
0
68186927
6.56
<.0001
sched id
CBD
0.15169911 B
0
29647927
0.51
0.6105
sched id
UDDS D
0.00000000 B
hot cold
C
0.84815708 B
0
12347794
6. 87
<.0001
hot cold
H
0.00000000 B
avgtotpower
0. 07074219
0
01379329
5.13
<.0001
aeon
0
0.00000000 B
oxyind
R
0.00000000 B
altcat
H
0.00000000 B
altcat
L
0.00000000 B
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-16
-------
Diesel C02 Hot vs. Cold Start 17
16:05 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: gco2_s
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-17
-------
Diesel C02 Hot vs. Cold Start 18
16:05 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
137
0
62.5231617
42.2179930
9.9147531
246.1273125
hclimit
137
0
1551.65
6441.26
0. 8315599
37861.95
disp
73
64
8.7452113
1.3456632
6.4896755
12.0616191
testwght
137
0
36712.11
14644.95
9550.00
75500.00
road hp
137
0
82.4618554
25.2040376
26.1290016
132.5727389
odometer
135
2
105551.63
75529.01
100.0000000
266541.00
Pi
137
0
0.2543639
0. 0213379
0.2459943
0. 4123711
p2
137
0
0. 0155204
0.0105357
0
0. 0226202
p3
137
0
0.0012934
0.000877977
0
0.0018850
p4
137
0
0
0
0
0
avgtotpower
137
0
45. 4377947
21.4564674
8.1316967
92.6001332
temp
0
137
rvp
0
137
mpg
137
0
4. 4716788
1.2883257
1.6700000
8.2900000
co2
137
0
2451.95
803.3417859
1187.37
6058.39
gco2
137
0
10142.22
3494.30
2381.57
17349.26
gco2 s
137
0
11.3028357
2. 8532982
4.1929084
21.3937034
ch4
0
137
gch4
0
137
mgch4 s
0
137
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-18
-------
Diesel C02 Hot vs. Cold Start 19
16:05 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
137
100.00
137
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
3
2.19
3
2.19
Fed HDV
134
97. 81
137
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1976
2
1.46
2
1.46
1977
4
2. 92
6
4.38
1978
2
1.46
8
5. 84
1979
18
13.14
26
18. 98
1980
18
1—1
CO
1—1
44
32.12
1981
22
16.06
66
CO
1—1
CO
1982
5
3. 65
71
51. 82
1983
2
1.46
73
53.28
1986
3
2.19
76
55. 47
1987
1
0.73
77
56.20
1988
9
6. 57
86
62.77
1989
12
8.76
98
71.53
1990
7
5.11
105
76. 64
1991
9
6. 57
114
83.21
1993
20
14. 60
134
97. 81
1995
3
2.19
137
100.00
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-19
-------
Diesel C02 Hot vs. Cold Start 20
16:05 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
137
100.00
137
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
137
100.00
137
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
64
46. 72
64
46. 72
4
7
5.11
71
51. 82
6
58
42.34
129
94.16
8
8
5. 84
137
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
64
46. 72
64
46. 72
CHARGED
20
14. 60
84
61.31
SUPER
2
1.46
86
62.77
TURBO
51
37.23
137
100.00
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-20
-------
Diesel C02 Hot vs. Cold Start 21
16:05 Friday, December 7, 2001
The FREQ Procedure
tran_type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
137
100.00
137
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
137
100.00
137
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
137
100.00
137
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
134
3
97. 81
2.19
134
137
97. 81
100.00
sched id
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
ART
CBD
UDDS D
2
41
94
1.46
29. 93
68. 61
2
43
137
1.46
31.39
100.00
/camwheels/cam/epaco2ch4/Doplco2 SR.sas
B3-21
-------
Diesel C02 Hot vs. Cold Start 22
16:05 Friday, December 7, 2001
The FREQ Procedure
start run
Frequency
137
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
137
100.00
soakcat
None
Frequency
137
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
137
100.00
Frequency
137
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
137
100.00
tempcat
Frequency
137
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
137
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
H
L
50
87
36.50
63. 50
50
137
36.50
100.00
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-22
-------
Diesel C02 Hot vs. Cold Start 23
16:05 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
137 100.00 137 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 137 100.00 137 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 137 100.00 137 100.00
/camwheels/cam/epaco2ch4/Doplco2_SR.sas
B3-23
-------
Appendix B4
Unified Results of gC02/s for Diesel Vehicles
-------
1
11:56 Monday, December 17, 2001
Class
sched_id
model_yr
tran_type
fedcat
All cycles, All operating conditions
The GLM Procedure
Class Level Information
Levels Values
23 20_40 2 0_MPH 30_MPH 40_MPH 5PEAK ART-CD CBD FTP FTP_bnl FTP_bn2 FTP_bn3 FWY-E
FWY-G FWY-HI IM240 LA92 NYCC SC03 SCC12 ST01 UDDS_D US06 WVUCBD
20 1969 1980 1981 1982 1984 1985 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996
1997 1998 1999 2000
2 AUTO MANUAL
3 Fed HDV Fed LDT4 Fed LDV
Number of observations 1193
NOTE: Due to missing values, only 696 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2dies.sas
B4-1
-------
All cycles, All operating conditions
2
11:56 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: gco2_s
Sum of
Source
DF
Squares
Mean
Square
F Value
Pr > F
Model
45
7032.289065
156
.273090
338.31
<.0001
Error
650
300.247374
0
.461919
Corrected Total
695
7332.536439
R-Square
Coeff Var Root
MSE
gco2 s
Mean
0.959053
11.
.20661 0.679646
6.064692
Source
DF
Type I SS
Mean
Square
F Value
Pr > F
avgtotpower
1
5812.868423
5812
.868423
12584.2
<.0001
sched id
22
1044.610501
47
. 482296
102.79
<.0001
model yr
19
127.469983
6
. 708946
14.52
<.0001
tran type
1
36.899773
36
.899773
79.88
<.0001
fedcat
2
10.440384
5
.220192
11.30
<.0001
Source
DF
Type II SS
Mean
Square
F Value
Pr > F
avgtotpower
1
811.2299920
811.
2299920
1756.22
<.0001
sched id
22
827.1463643
37.
5975620
81.39
<.0001
model yr
19
91.3888762
4.
8099409
10. 41
<.0001
tran type
1
44.0623299
44.
0623299
95.39
<.0001
fedcat
2
10.4403843
5.
2201922
11.30
<.0001
/camwheels/cam/epaco2ch4/vclco2dies. sas
B4-2
-------
All cycles, All operating conditions 3
11:56 Monday, December 17, 2001
Dependent Variable: gco2_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
3.425686274 B
0.58009534
5. 91
avgtotpower
0.201679532
0.00481252
41. 91
sched id
20 40
1.720776564 B
0.63142679
2.73
sched id
20 MPH
1.290393904 B
0.51991725
2. 48
sched id
30 MPH
1.811312801 B
0.85529070
2.12
sched id
40 MPH
2.648060153 B
0.53822018
4. 92
sched id
5 PEAK
0.302548978 B
0.50889277
0.59
sched id
ART-CD
-2.195406391 B
0.51165706
-4.29
sched id
CBD
4.182892214 B
0.65534295
6. 38
sched id
FTP
-1.647743583 B
0.51292772
-3.21
sched id
FTP bnl
-1.252613491 B
0.51314427
-2. 44
sched id
FTP bn2
-1.716192336 B
0.51320435
1
CO
CO
sched id
FTP bn3
-1.923716808 B
0.51314427
-3. 75
sched id
FWY-E
-2.836999749 B
0.53127758
1
cn
CO
sched id
FWY-G
-2.053687470 B
0.52993470
1
CO
CO
CO
sched id
FWY-HI
-3.678649879 B
0.53591646
CO
1
sched id
IM240
-1.547627581 B
0.71558943
-2.16
sched id
LA92
-2.100905035 B
0.54033554
1
CO
CO
sched id
NYCC
-1.662985204 B
0.51617301
-3.22
sched id
SC03
-1.593629022 B
0.57428369
-2.77
sched id
SCC12
-1.039292279 B
0.86749198
1
1—1
K)
O
sched id
ST01
-1.411682407 B
0.50580839
-2.79
sched id
UDDS D
-0.252863428 B
0.51695991
1
o
sched id
US0 6
-2.494025838 B
0.53489315
-4. 66
sched id
WVUCBD
0.000000000 B
model yr
1969
-3.385143433 B
0.40709139
1
CO
CO
K)
model yr
1980
-1.372514151 B
0.30900459
-4. 44
model yr
1981
-1.406216341 B
0.42531130
-3. 31
<.0001
<.0001
0.0066
0.0133
0.0346
<.0001
0.5524
<.0001
<.0001
0.0014
0.0149
0. 0009
0. 0002
<.0001
0.0001
<.0001
0.0309
0.0001
0.0013
0. 0057
0.2313
0. 0054
0.6249
<.0001
<.0001
<.0001
0.0010
/camwheels/cam/epaco2ch4/vclco2dies.sas
B4-3
-------
All cycles, All operating conditions 4
11:56 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: gco2_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
model yr
1982
-1.699839852 B
0.39033935
1
CO
Cn
<.0001
model yr
1984
-1.369887432 B
0.46592346
-2. 94
0.0034
model yr
1985
-0.608429977 B
0.25191576
-2. 42
0.0160
model yr
1987
-1.012061124 B
0.33071728
-3.06
0. 0023
model yr
1988
-0.455067818 B
0.23195079
-1. 96
0.0502
model yr
1989
-0.761569299 B
0.26139063
-2. 91
0.0037
model yr
1990
-1.413913985 B
0.27521948
1
Cn
l—1
<.0001
model yr
1991
-0.425318899 B
0.25218375
-1. 69
0.0922
model yr
1992
-0.229395531 B
0.26901965
LO
CO
o
1
0.3941
model yr
1993
-0.812736280 B
0.24832351
-3.27
0. 0011
model yr
1994
-0.803627779 B
0.22597209
-3.56
0.0004
model yr
1995
-0.245115764 B
0.22307119
1
1—1
1—1
o
0.2723
model yr
1996
-0.710028388 B
0.24108036
1
K)
Cn
0.0033
model yr
1997
-0.590794207 B
0.22763522
-2. 60
0.0097
model yr
1998
0.069146919 B
0.22675804
0.30
0.7605
model yr
1999
-0.105515178 B
0.21127133
o
LO
o
1
0.6176
model yr
2000
0.000000000 B
tran type
AUTO
0.919254432 B
0. 09412065
9. 77
<.0001
tran type
MANUAL
0.000000000 B
fedcat
Fed HDV
-1.015578047 B
0.23186398
1
CO
CO
<.0001
fedcat
Fed LDT4
-1.222080404 B
0.25706622
-4.75
<.0001
fedcat
Fed LDV
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2dies.sas
B4-4
-------
All cycles, All operating conditions 5
11:56 Monday, December 17, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
643
53
2422.98
24889.17
3.3857611
275832.28
hclimit
643
53
242.0204085
2488.72
0.2708609
27580.75
disp
665
31
7.1282602
1.6411480
3.0000000
11.9000000
testwght
696
0
14150.43
10324.01
2625.00
52000. 00
road hp
696
0
34.0176277
24.6240529
6.7000000
109.4686639
odometer
581
115
43976.90
65993.52
33.0000000
286400.00
Pi
696
0
0.2617761
0.1210175
0
0.5083333
p2
696
0
0.0382331
0.0488912
0
0.2081967
p3
696
0
0.0034788
0.0082500
0
0. 0415973
p4
696
0
0.000952819
0.0029169
0
0.0149750
avgtotpower
696
0
21.5579465
13.5445671
3.0782612
70.0599449
temp
694
2
76.0864553
2.8921980
70. 0000000
89.0000000
rvp
0
696
mpg
696
0
12.5386134
6.0758515
2.4600000
36.7300000
co2
696
0
1016.99
560.1021570
277.6520000
2915.68
gco2
643
53
4705.27
3495.89
658.1954667
16134.16
gco2 s
696
0
6.0646921
3.2481398
1. 4228027
21. 0444444
ch4
162
534
0.0057531
0.0111729
0.0010000
0.1170000
gch4
162
534
0.0191167
0.0370817
0.0011796
0.3091612
mgch4 s
162
534
0.0288931
0.0563007
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/vclco2dies. sas
B4-5
-------
All cycles, All operating conditions 6
11:56 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
696
100.00
696
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
578
CO
CO
o
cn
578
CO
CO
o
cn
Fed LDT4
88
12. 64
666
95. 69
Fed LDV
30
4.31
696
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
B4-6
-------
l_yr
1969
1980
1981
1982
1984
1985
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
type
All cycles, All operating conditions
11:56 Monday, December 17, 2001
The
FREQ Procedure
Cumulative
Cumulative
Frequency
Percent
Frequency
Percent
6
0.86
6
0.86
13
1. 87
19
2.73
6
0.86
25
3.59
9
1.29
34
4. 89
4
0.57
38
5.46
23
3. 30
61
8.76
8
1.15
69
9. 91
59
8. 48
128
18.39
25
3.59
153
K)
1—1
CO
19
2.73
172
24.71
22
3.16
194
27. 87
17
2. 44
211
30.32
29
4.17
240
34. 48
36
5.17
276
39. 66
55
7. 90
331
47.56
41
5. 89
372
53. 45
52
7. 47
424
60. 92
63
9. 05
487
69. 97
195
28. 02
682
97. 99
14
2. 01
696
100.00
Cumulative
Cumulative
Frequency
Percent
Frequency
Percent
271
38. 94
271
38. 94
406
58.33
677
97.27
19
2.73
696
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
B4-7
-------
All cycles, All operating conditions 8
11:56 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
271
CO
CO
271
CO
CO
NONE
340
LO
CO
CO
611
87.79
OXID
85
12.21
696
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
8
1.15
8
1.15
5
4
0.57
12
1.72
6
445
63. 94
457
65. 66
8
239
34.34
696
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
255
36. 64
255
36. 64
CHARGED
5
0.72
260
37.36
NATURAL
56
8. 05
316
o
LO
TURBO
380
o
LO
696
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
AUTO
578
CO
CO
o
cn
578
CO
CO
o
cn
MANUAL
118
16. 95
696
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
B4-8
-------
All cycles, All operating conditions 9
11:56 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
repairs Frequency Percent Frequency Percent
A
15
2.16
15
2.16
B
681
97. 84
696
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
53
7. 61
53
7. 61
0
643
92.39
696
100.00
Cumulative
Cumulative
hchigh
Frequency
Percent
Frequency
Percent
58
8.33
58
8.33
0
632
O
CO
O
690
99.14
1
6
0.86
696
100.00
/camwheels/cam/epaco2ch4/vclco2dies. sas
B4-9
-------
All cycles, All operating conditions
The FREQ Procedure
Cumulative
10
11:56 Monday, December 17, 2001
Cumulative
sched id
Frequency
Percent
Frequency
Percent
20 40
3
0. 43
3
0. 43
20 MPH
24
3. 45
27
3.88
30 MPH
1
0.14
28
4. 02
40 MPH
25
3.59
53
7. 61
5 PEAK
87
12.50
140
20.11
ART-CD
40
5.75
180
25. 86
CBD
5
0.72
185
26.58
FTP
38
5.46
223
CO
K)
O
FTP bnl
38
5.46
261
37.50
FTP bn2
38
5.46
299
42. 96
FTP bn3
38
5.46
337
CO
K)
FWY-E
18
2.59
355
51. 01
FWY-G
18
2.59
373
53. 59
FWY-HI
38
5.46
411
59. 05
IM240
2
0.29
413
59. 34
LA92
12
1.72
425
61. 06
NYCC
38
5.46
463
66. 52
SC03
6
0.86
469
67.39
SCC12
1
0.14
470
67.53
ST01
68
9. 77
538
77.30
UDDS D
130
18. 68
668
Cn
CO
US0 6
26
3.74
694
99. 71
WVUCBD
2
0.29
696
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
696
100.00
696
100.00
/camwheels/cam/epaco2ch4/vclco2dies.sas
B4-10
-------
All cycles, All operating conditions
11
11:56 Monday, December 17, 2001
The FREQ Procedure
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
580
72
44
83. 33
10.34
6. 32
580
652
696
83. 33
93. 68
100.00
Cumulative Cumulative
aeon Frequency Percent Frequency Percent
0
696
100.00
696
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
2
0.29
2
0.29
25
682
97. 99
684
98.28
35
12
1.72
696
100.00
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
H
L
376
16
304
54. 02
2.30
43. 68
376
392
696
54. 02
56. 32
100.00
/camwheels/cam/epaco2ch4/vclco2dies.sas
B4-11
-------
All cycles, All operating conditions
12
11:56 Monday, December 17, 2001
The FREQ Procedure
rvpind
Frequency
696
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
696
100.00
oxygenate Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
None
285
411
40. 95
59. 05
285
696
40. 95
100.00
oxyind Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
D
U
411
285
59. 05
40. 95
411
696
59. 05
100.00
/camwheels/cam/epaco2ch4/vclco2dies.sas
B4-12
-------
Appendix C1
Dependence of gC02/s for Combined Vehicles on Vehicle
Characteristics
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 1
16:24 Saturday, December 8, 2001
The GLM Procedure
Class Level Information
Values
20_40 20_MPH 30_MPH 40_MPH 5PEAK ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1
CACYC2 CACYC3 CACYC4 CACYC5 CACYC6 CACYC7 CBD CDH226 F505 FTP_bnl FTP_bn2
FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G FWY-HI HWFET IM240 LA92 LSP1 LSP2 LSP3
NYCC RAMP SC03 SCC12 SCC36 ST01 UDDS_D UNCFTP US06 WVUCBD
Fed_HDV Fed_LDTl Fed_LDT2 Fed_LDT3 Fed_LDT4 Fed_LDV
1969 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
Class Levels
sched_id 45
fedcat 6
model_yr 28
tran_type 2 AUTO MANUAL
fueltype 2 DIES GAS
Number of observations 59903
NOTE: Due to missing values, only 35082 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-1
-------
Only MSOD Data, All Cycles, 25C,
AC off, not High Altitude, Diesel or Non-Oxy Gasoline 2
16:24 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: gco2_s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
75
56575.11914
754.33492
4550.69
<.0001
Error
35006
5802.68559
0.16576
Corrected Total
35081
62377.80473
R-Square
Coeff Var Root
MSE gco2 s
Mean
0.906975
15.
,42830 0.407140 2.638914
Source
DF
Type I SS
Mean Square
F Value
Pr > F
avgtotpower
1
52109.10047
52109.10047
314360
<.0001
sched id
44
2729.96903
62.04475
374.30
<.0001
zippy
1
1243.69160
1243.69160
7502.85
<.0001
tran type
1
242.59647
242.59647
1463.52
<.0001
model yr
27
182.69378
6.76644
O
CO
K)
<.0001
fueltype
1
67.06778
67.06778
404.60
<.0001
Source
DF
Type II SS
Mean Square
F Value
Pr > F
avgtotpower
1
9317.845013
9317.845013
56212.0
<.0001
sched id
44
2659.646142
60.446503
364.66
<.0001
zippy
1
720.860688
720.860688
4348.75
<.0001
tran type
1
230.246110
230.246110
1389.01
<.0001
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-2
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 3
16:24 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: gco2_s
Source
DF
Type II SS
Mean Square
F Value
Pr > F
model_yr
fueltype
27
1
177.122084
67.067779
6.560077
67. 067779
39. 58
404.60
<.0001
<.0001
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
2.539613142 B
0.33825267
7.51
<.0001
avgtotpower
0.228116643
0. 00096215
237.09
<.0001
sched id
20 40
0.843801806 B
0. 40750821
2. 07
0.0384
sched id
20 MPH
1.318812241 B
0.30174119
4.37
<.0001
sched id
30 MPH
1.356416592 B
0. 49956854
2.72
0.0066
sched id
40 MPH
1.730003031 B
0.30125738
5.74
<.0001
sched id
5 PEAK
-0.050168967 B
0.29257576
-0.17
0.8639
sched id
ART-CD
-2.326476916 B
0.29290032
-7. 94
<.0001
sched id
ART-EF
-2.141120452 B
0.29503141
-7.26
<.0001
sched id
CAART1
-2.959118574 B
0.29598774
1
1—1
o
o
o
<.0001
sched id
CAART2
-3.107534815 B
0.29584452
-10.50
<.0001
sched id
CAART3
-0.859534995 B
0.29573725
-2. 91
0.0037
sched id
CACYC1
-2.794770533 B
0.29612583
-9.44
<.0001
sched id
CACYC2
-1.655260359 B
0.29597761
-5.59
<.0001
sched id
CACYC3
-2.811779652 B
0.29605400
1
Cn
o
<.0001
sched id
CACYC4
-2.670747175 B
0.29574219
1
O
CO
<.0001
sched id
CACYC5
-3.202237677 B
0.29566169
1
1—1
o
CO
CO
<.0001
sched id
CACYC6
-2.522046901 B
0.29589918
1
CO
cn
K)
<.0001
sched id
CACYC7
-2.530267205 B
0.29593955
LO
LO
CO
1
<.0001
sched id
CBD
4.807507744 B
0.55323498
8. 69
<.0001
sched id
CDH22 6
-2.617426007 B
0.29349785
-8. 92
<.0001
sched id
F505
-2.192231163 B
0.29119595
-7.53
<.0001
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-3
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 4
16:24 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: gco2_s
Parameter
Estimate
Standard
Error
t Value
sched id
FTP bnl
-2.077021716 B
0.29043918
-1 .lb
sched id
FTP bn2
-2.305124283 B
0.29049481
-7. 94
sched id
FTP bn3
-2.416666182 B
0.29043921
-8.32
sched id
FWY-AC
-3.205236781 B
0.30551863
1
1—1
o
sched id
FWY-D
-4.256193324 B
0.29573760
-14.39
sched id
FWY-E
-2.882973720 B
0.29480115
-9.78
sched id
FWY-F
-2.133185243 B
0.29304908
-7.28
sched id
FWY-G
-1.920510981 B
0.29337454
-6. 55
sched id
FWY-HI
-4.151562788 B
0.29361174
-14.14
sched id
HWFET
-2.318620680 B
0.29536688
-7. 85
sched id
IM240
-2.440374313 B
0.29048127
-8. 40
sched id
LA92
-2.280194251 B
0.29273645
-7.79
sched id
LSP1
-2.745506626 B
0.29109497
-9. 43
sched id
LSP2
-2.470987197 B
0.29108308
-8. 49
sched id
LSP3
-1.957760092 B
0.29107827
-6. 73
sched id
NYCC
-1.961283828 B
0.29174734
-6. 72
sched id
RAMP
-3.413897254 B
0.30057251
-11.36
sched id
SC03
-1.873993685 B
0.34198448
-5. 48
sched id
SCC12
-2.435669101 B
0.29069375
-8.38
sched id
SCC36
-2.426644204 B
0.29060881
-8.35
sched id
ST01
-1.850592555 B
0.29099588
-6.36
sched id
UDDS D
-0.959214170 B
0.29247065
-3.28
sched id
UNCFTP
-2.257717010 B
0.29323441
-7.70
sched id
US0 6
-2.970190790 B
0.29178827
1
1—1
o
1—1
CO
sched id
WVUCBD
0.000000000 B
zippy
0.803746816
0. 01218812
65. 95
tran type
AUTO
0.210625276 B
0. 00565142
37.27
tran type
MANUAL
0.000000000 B
/camwheels/cam/epaco2ch4/vclco2comb.sas
Pr > |t|
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
0.0010
<.0001
<.0001
<.0001
<.0001
Cl-4
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 5
16:24 Saturday, December 8, 2001
Dependent Variable: gco2_s
Parameter
model_yr 1969
model_yr 1974
model_yr 1975
model_yr 197 6
model_yr 1977
model_yr 1978
model_yr 1979
model_yr 1980
model_yr 1981
model_yr 1982
model_yr 1983
model_yr 1984
model_yr 1985
model_yr 198 6
model_yr 1987
model_yr 1988
model_yr 1989
model_yr 1990
model_yr 1991
model_yr 1992
model_yr 1993
model_yr 1994
model_yr 1995
model_yr 1996
model_yr 1997
model_yr 1998
model_yr 1999
model_yr 2000
The GLM
Procedure
Standard
Estimate
Error
t Value
Pr > |t|
-4.124417650 I
3 0.29241773
1
1—1
d^
1—1
O
<.0001
0.403938855 I
3 0.28949939
1. 40
0.1629
-0.372797840 I
3 0.18830461
1
1—1
CO
0. 0477
0.579152530 I
3 0.18143081
3.19
0.0014
-0.006640561 I
3 0.17028734
o
o
1
0.9689
0.016760549 I
3 0.17008395
o
i—1
o
0.9215
-0.147337084 I
3 0.16975707
-0. 87
0.3854
-0.068936483 I
3 0.16936548
1
o
d^
1—1
0.6840
-0.055543019 I
3 0.16901055
1
O
CO
CO
0.7424
-0.083345947 I
3 0.16924690
1
o
d^
0.6224
-0.009744496 I
3 0.16914112
O
O
1
0. 9541
0.002485663 I
3 0.16912671
O
o
1—1
0. 9883
-0.046395184 I
3 0.16908585
-0.27
0.7838
-0.108326447 I
3 0.16906890
o
1
0.5217
-0.124221319 I
3 0.16905932
-0.73
0.4625
-0.089410936 I
3 0.16901387
1
o
cn
CO
0.5968
-0.088290135 I
3 0.16909455
1
o
cn
K)
0.6016
-0.086652930 I
3 0.16912487
1
o
cn
I—1
0.6084
-0.007852446 I
3 0.16923451
LO
o
o
1
0.9630
0.140070329 I
3 0.16953022
o
CO
CO
0. 4087
-0.043016541 I
3 0.16960206
1
o
K)
Cn
0.7998
-0.159443381 I
3 0.17036037
1
o
d^
0.3493
-0.114238126 I
3 0.16951416
-0. 67
0.5004
-0.200269197 I
3 0.17003883
1
1—1
1—1
CO
0.2389
-0.123537348 I
3 0.16954140
-0.73
0.4662
0.148156250 I
3 0.17075677
0. 87
0.3856
0.109751877 I
3 0.16916164
LO
O
0.5165
0.000000000 B
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-5
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 6
16:24 Saturday, December 8, 2001
Dependent Variable: gco2_s
The GLM Procedure
Parameter
fueltype
fueltype
DIES
GAS
Estimate
-0.600845246 B
0.000000000 B
Standard
Error
0.02987094
t Value
-20.11
Pr > |t|
<.0001
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-6
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 7
16:24 Saturday, December 8, 2001
fueltype=DIES
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
694
68
25020.45
84142.70
3.3857611
433998.76
hclimit
694
68
2870.50
9201.29
0.2708609
45604.09
disp
7 62
0
7. 8294372
2.2159165
3.0000000
14. 0117994
testwght
7 62
0
18548.22
14483.60
4000.00
62900.00
road hp
7 62
0
43.7392691
31.8177346
6.7000000
140. 0000000
odometer
666
96
60658.64
77013.32
100. 0000000
353000.00
Pi
7 62
0
0.2498262
0.1185094
0
0. 4282051
p2
7 62
0
0.0341439
0.0466793
0
0.2081967
p3
7 62
0
0.0030248
0.0073885
0
0. 0415973
p4
7 62
0
0.000783076
0.0026038
0
0.0149750
avgtotpower
7 62
0
25.5884943
16.7466373
4.1006392
85.9992500
temp
7 62
0
76.1338583
2.6678468
70.0000000
85.0000000
rvp
0
7 62
mpg
7 62
0
10.9101959
5. 8185205
1.7800000
29.6500000
co2
7 62
0
1191.51
743.8068811
343.5680000
5547.01
gco2
694
68
5190.79
3889.59
658.1954667
16974.34
gco2 s
7 62
0
6. 8328829
3.6736892
1.7645057
21.0444444
ch4
139
623
0.0060288
0.0117461
0.0010000
0.1170000
gch4
139
623
0.0152253
0.0244697
0.0011796
0.2084085
mgch4 s
139
623
0.0293962
0. 0587974
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/vclco2comb. sas
Cl-7
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 8
16:24 Saturday, December 8, 2001
fueltype=GAS
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
33053
1567
4. 9459202
3.2935894
3.2000000
39.0000000
hclimit
32954
1666
0.5042905
0.2817697
0.2500000
3.4000000
disp
34620
0
2. 9941609
1.2965610
0.9996722
8.3906916
testwght
34620
0
3420.58
1063.32
2000.00
11050.00
road hp
34620
0
8.9986771
3.5520537
3.2000000
32.5000000
odometer
34495
125
62085.93
34099.76
47.0000000
241829.00
Pi
34620
0
0.3665581
0.0691320
0
0.5083333
p2
34620
0
0.0345972
0.0273488
0
0.2081967
p3
34620
0
0.000548005
0.0039540
0
0. 0415973
p4
34620
0
0.000160285
0.0013561
0
0.0149750
avgtotpower
34620
0
6.9195056
4.9398568
0.2568667
76.6929135
temp
34620
0
75.4379001
1.7935129
68. 0000000
85.6000000
rvp
34620
0
8.9759965
0.0766234
8.7000000
9.2000000
mpg
34612
8
21.5890853
6.6154630
2.2700000
99.9900000
co2
34620
0
441.6225718
212.3089487
19.9000000
3888.40
gco2
34619
1
1461.46
844.3952779
58.1655667
13963.35
gco2 s
34620
0
2.5808108
1.1826405
0.1417886
27.7050643
ch4
21972
12648
0.1075230
0.2089189
-1.5300000
8.7500000
gch4
21971
12649
0.3458746
0.5121189
-5.9049075
19.1427067
mgch4 s
21972
12648
0.5767221
0.8186884
-6.8541176
26.5515278
/camwheels/cam/epaco2ch4/vclco2comb. sas
Cl-8
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 9
16:24 Saturday, December 8, 2001
fueltype=DIES
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
7 62
100.00
7 62
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
162
21.26
162
21.26
Fed HDV
507
LO
669
87. 80
Fed LDT4
81
10. 63
750
CO
CO
Fed LDV
12
1.57
7 62
100.00
/camwheels/cam/epaco2ch4/vclco2comb. sas
Cl-9
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 10
16:24 Saturday, December 8, 2001
fueltype=DIES
The FREQ Procedure
Cumulative Cumulative
model yr
Frequency
Percent
Frequency
Percent
1951
6
0.79
6
0.79
1953
18
2.36
24
3.15
1954
5
0. 66
29
3.81
1963
6
0.79
35
4.59
1966
9
1.18
44
5.77
1967
10
1.31
54
7. 09
1969
4
0.52
58
7. 61
1970
5
0. 66
63
8.27
1974
6
0.79
69
9.06
1980
3
0.39
72
9. 45
1982
6
0.79
78
10.24
1984
11
1. 44
89
11. 68
1985
19
2. 49
108
14.17
1987
8
1. 05
116
15.22
1988
57
7. 48
173
22.70
1989
28
3. 67
201
26. 38
1990
19
2. 49
220
28. 87
1991
35
4.59
255
33. 46
1992
10
1.31
265
34.78
1993
41
5.38
306
40.16
1994
48
6. 30
354
46.46
1995
59
7.74
413
54.20
1996
49
6. 43
4 62
60. 63
1997
46
6.04
508
66. 67
1998
69
9.06
577
75.72
1999
179
23. 49
756
99.21
2000
6
0.79
7 62
100.00
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-10
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 11
16:24 Saturday, December 8, 2001
- fueltype=DIES --
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
324
42.52
324
42.52
DIRECT
404
53. 02
728
95.54
PFI
34
4.46
7 62
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
324
42.52
324
42.52
NONE
360
47.24
684
89.76
OXID
78
10.24
7 62
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
5
3
0.39
3
0.39
6
510
66. 93
513
67.32
8
249
32. 68
7 62
100.00
/camwheels/cam/epaco2ch4/vclco2comb. sas
Cl-11
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 12
16:24 Saturday, December 8, 2001
fueltype=DIES
The
FREQ Procedure
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
318
41.73
318
41.73
CHARGED
4
0.52
322
42.26
NATURAL
78
10.24
400
52. 49
SUPER
5
0. 66
405
53.15
TURBO
357
LO
CO
7 62
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
AUTO
522
68.50
522
68.50
MANUAL
240
31.50
7 62
100.00
Cumulative
Cumulative
repairs
Frequency
Percent
Frequency
Percent
A
21
2.76
21
2.76
B
741
97.24
7 62
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
68
8. 92
68
8. 92
0
694
1—1
O
CO
7 62
100.00
/camwheels/cam/epaco2ch4/vclco2comb. sas
Cl-12
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 13
16:24 Saturday, December 8, 2001
-- fueltype=DIES
The FREQ Procedure
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
71
674
17
9. 32
38.45
2.23
71
745
7 62
9. 32
97.77
100.00
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-13
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 14
16:24 Saturday, December 8, 2001
fueltype=DIES
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
20 40
2
0.
.26
2
0.
,26
20 MPH
31
4.
. 07
33
4.
, 33
30 MPH
1
0.
. 13
34
4.
,46
40 MPH
34
4.
.46
68
8.
, 92
5 PEAK
108
14.
. 17
176
23.
, 10
ART-CD
40
5.
.25
216
28.
, 35
CBD
26
3.
. 41
242
31.
,76
FTP bnl
43
5.
. 64
285
37.
, 40
FTP bn2
43
5.
. 64
328
43.
, 04
FTP bn3
43
5.
. 64
371
48.
, 69
FWY-E
18
2.
. 36
389
51.
, 05
FWY-G
18
2.
. 36
407
53.
, 41
FWY-HI
36
4.
. 72
443
58.
, 14
LA92
12
1.
. 57
455
59.
, 71
NYCC
35
4.
. 59
490
64.
, 30
SC03
5
0.
. 66
495
64.
, 96
SCC12
1
0.
. 13
496
65.
, 09
ST01
68
8.
. 92
564
74.
, 02
UDDS D
174
22.
. 83
738
96.
, 85
US0 6
22
2.
. 89
760
99.
, 74
WVUCBD
2
0.
.26
7 62
100.
, 00
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
762 100.00 762 100.00
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-14
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 15
16:24 Saturday, December 8, 2001
fueltype=DIES
The FREQ Procedure
Cumulative Cumulative
soakcat Frequency Percent Frequency Percent
GE60
LT60
637
77
48
83. 60
10.10
6. 30
637
714
7 62
83. 60
93. 70
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
7 62
100.00
7 62
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
25
7 62
100.00
7 62
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
L
444
318
58.27
41.73
444
7 62
58.27
100.00
/camwheels/cam/epaco2ch4/vclco2comb. sas
Cl-15
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 16
16:24 Saturday, December 8, 2001
-- fueltype=DIES
The FREQ Procedure
rvpind Frequency Percent
762 100.00
Cumulative
Frequency
Cumulative
Percent
7 62
100.00
oxygenate
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
None
354
408
46.46
53. 54
354
7 62
46.46
100.00
oxyind
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
D
U
408
354
53. 54
46.46
408
7 62
53. 54
100.00
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-16
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 17
16:24 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
34620
100.00
34620
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
138
o
o
138
o
o
Fed HDV
1549
4. 47
1687
4. 87
Fed LDT1
2149
6.21
3836
1—1
1—1
o
CO
Fed LDT2
270
0.78
4106
11. 86
Fed LDT3
320
0. 92
4426
12.78
Fed LDT4
13
o
o
4439
1—1
K)
CO
K)
Fed LDV
30181
87.18
34620
100.00
/camwheels/cam/epaco2ch4/vclco2comb. sas
Cl-17
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 18
16:24 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
1974
3
o
o
1—1
3
o
o
1—1
1975
24
0. 07
27
0. 08
1976
38
0.11
65
0.19
1977
368
1.06
433
1.25
1978
427
1.23
860
2. 48
1979
608
1.76
1468
4.24
1980
1005
2. 90
2473
7.14
1981
4247
12.27
6720
19.41
1982
1359
3. 93
8079
23. 34
1983
2024
5. 85
10103
29.18
1984
2196
6. 34
12299
35.53
1985
2663
7. 69
14962
43.22
1986
3031
8.76
17993
51. 97
1987
3242
9.36
21235
61.34
1988
3656
10.56
24891
71. 90
1989
2657
7. 67
27548
79. 57
1990
2409
6.96
29957
86. 53
1991
1160
3. 35
31117
89.88
1992
815
2.35
31932
92.24
1993
609
1.76
32541
93. 99
1994
266
0.77
32807
94.76
1995
546
1.58
33353
96. 34
1996
416
1.20
33769
97.54
1997
611
1.76
34380
99. 31
1998
204
0.59
34584
99.90
1999
36
0.10
34620
100.00
/camwheels/cam/epaco2ch4/vclco2comb. sas
Cl-18
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 19
16:24 Saturday, December 8, 2001
fueltype=GAS
The
FREQ Procedure
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
480
1.39
480
1.39
NOTFI
10572
30.54
11052
31. 92
PFI
14053
40.59
25105
72.52
TBI
9515
27. 48
34620
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
19833
57.29
19833
57.29
NONE
93
0.27
19926
57.56
OX3W
10387
CO
o
o
o
30313
87.56
OXID
4307
12. 44
34620
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
2
22
0.06
22
0.06
3
62
0.18
84
0.24
4
18195
52.56
18279
cn
K)
CO
o
5
59
0.17
18338
52. 97
6
10371
29.96
28709
CO
K)
CO
8
5792
16. 73
34501
99.66
10
119
0.34
34620
100.00
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-19
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 20
16:24 Saturday, December 8, 2001
-- fueltype=GAS --
The FREQ Procedure
Cumulative Cumulative
aspirated Frequency Percent Frequency Percent
CHARGED
NATURAL
13
992
33615
0. 04
2. 87
97.10
13
1005
34620
0. 04
2. 90
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
26592
8028
76.81
23.19
26592
34620
76.81
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
A
B
5962
28658
17.22
82.78
5962
34620
17.22
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
1571
25849
7200
4.54
74. 66
20. 80
1571
27420
34620
4.54
79.20
100.00
/camwheels/cam/epaco2ch4/vclco2comb. sas
CI-20
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 21
16:24 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
1670
24094
8856
4. 82
69.60
25.58
1670
25764
34620
4. 82
74. 42
100.00
/camwheels/cam/epaco2ch4/vclco2comb.sas
Cl-21
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 22
16:24 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
40 MPH
1
0.
. 00
1
0.
, 00
ART-CD
47
0.
. 14
48
0.
, 14
ART-EF
64
0.
. 18
112
0.
, 32
CAART1
51
0.
. 15
163
0.
, 47
CAART2
52
0.
. 15
215
0.
, 62
CAART3
53
0.
. 15
268
0.
, 77
CACYC1
50
0.
. 14
318
0.
, 92
CACYC2
51
0.
. 15
369
1.
, 07
CACYC3
50
0.
. 14
419
1.
,21
CACYC4
53
0.
. 15
472
1.
, 36
CACYC5
54
0.
.16
526
1.
, 52
CACYC6
52
0.
. 15
578
1.
, 67
CACYC7
52
0.
. 15
630
1.
, 82
CDH22 6
93
0.
.27
723
2.
, 09
F505
425
1.
.23
1148
3.
, 32
FTP bnl
7993
23.
. 09
9141
26.
, 40
FTP bn2
7992
23.
. 08
17133
49.
, 49
FTP bn3
7990
23.
. 08
25123
72.
, 57
FWY-AC
19
0.
. 05
25142
72.
, 62
FWY-D
74
0.
.21
25216
72.
, 84
FWY-E
46
0.
. 13
25262
72.
, 97
FWY-F
112
0.
. 32
25374
73.
,29
FWY-G
75
0.
.22
25449
73.
, 51
FWY-HI
118
0.
. 34
25567
73.
, 85
HWFET
57
0.
.16
25624
74.
, 02
IM240
3826
11.
. 05
29450
85.
, 07
LA92
110
0.
. 32
29560
85.
, 38
LSP1
521
1.
. 50
30081
86.
, 89
/camwheels/cam/epaco2ch4/vclco2comb. sas
CI-22
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 23
16:24 Saturday, December 8, 2001
fueltype=GAS
The
FREQ Procedure
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
LSP2
523
1.51
30604
88. 40
LSP3
523
1.51
31127
89. 91
NYCC
174
0.50
31301
90. 41
RAMP
30
0. 09
31331
90.50
SCC12
1358
3. 92
32689
94. 42
SCC36
1358
3. 92
34047
98.34
ST01
201
0.58
34248
98. 93
UNCFTP
103
0.30
34351
99.22
USO 6
269
0.78
34620
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
34004
98.22
34004
98.22
R
171
0. 49
34175
98.71
S
445
1.29
34620
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
18305
52. 87
18305
52. 87
GE60
8117
23. 45
26422
76. 32
LT60
8198
23. 68
34620
100.00
/camwheels/cam/epaco2ch4/vclco2comb. sas
CI-23
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 24
16:24 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Frequency
34620
Percent
100.00
Cumulative
Frequency
34620
Cumulative
Percent
100.00
tempcat Frequency
25 34620
Cumulative Cumulative
Percent Frequency Percent
100.00
34620
100.00
altcat Frequency Percent
Cumulative
Frequency
Cumulative
Percent
3948
30672
11. 40
88. 60
3948
34620
11. 40
100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
34620
100.00
34620
100.00
oxygenate Frequency
None 34620
Cumulative Cumulative
Percent Frequency Percent
100.00
34620
100.00
/camwheels/cam/epaco2ch4/vclco2comb.sas
CI-24
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 25
16:24 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 34620 100.00 34620 100.00
/camwheels/cam/epaco2ch4/vclco2comb.sas
CI-25
-------
Appendix D1
Dependence of gCH4/s for Gasoline Vehicles on Vehicle
Characteristics
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline
1
Class
fedcat
model_yr
colimit
hclimit
fi_type
cat_type
aspirated
tran_type
repairs
cohigh
hchigh
cylinder
15:04 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Levels Values
6 Fed_HDV Fed_LDTl Fed_LDT2 Fed_LDT3 Fed_LDT4 Fed_LDV
25 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1990 1991 1992 1993 1994 1995 1996 1997 1998
12 3.2 3.4 4.4 5 6.7 7 10 14.4 15 18 20 39
8 0.25 0.41 0.8 1.18 1.5 1.7 2 3.4
3 NOTFI PFI TBI
4 3WAY NONE OX3W OXID
2 CHARGED NATURAL
2 AUTO MANUAL
2 A B
2 0 1
2 0 1
5 3 4 5 6 8
Number of observations 8747
NOTE: Due to missing values, only 5086 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclch4gas. sas
Dl-1
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 2
15:04 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
54
913
.294534
16.912862
CO
CO
CO
<.0001
Error
5031
1941
.288272
0.385865
Corrected Total
5085
2854
. 582806
R-Square
Coef f
Var
Root
MSE mgch4 s
Mean
0.319940
111.
3758
0.621181 0.557734
Source
DF
Type I SS
Mean Square
F Value
Pr > F
cohigh
1
543.
0426044
543.0426044
1407.34
<.0001
hchigh
1
106.
6796436
106.6796436
276.47
<.0001
cat type
3
156.
9164281
52.3054760
135.55
<.0001
model yr
24
CO
9939405
1.8330809
4.75
<.0001
disp
1
14.
3697539
14.3697539
37.24
<.0001
avgtotpower
1
5.
9557711
5.9557711
15. 43
<.0001
fi type
2
3.
1885714
1.5942857
1—1
CO
0.0161
tran type
1
7.
0920755
7. 0920755
18.38
<.0001
zippy
1
0.
0000369
0.0000369
o
o
o
0.9922
colimit
9
CO
o
6694937
3.4077215
CO
CO
CO
<.0001
aspirated
1
0.
6585237
0.6585237
1.71
0.1915
fedcat
5
0.
5192695
0.1038539
0.27
0.9301
odometer
1
0.
1921350
0.1921350
0.50
0.4804
repairs
1
0.
0088872
0.0088872
o
O
K)
0.8794
/camwheels/cam/epaco2ch4/vclch4gas.sas
Dl-2
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 3
15:04 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Source
DF
Type I SS
Mean Square
F Value
Pr > F
hclimit
2
0.0073997
0.0036998
0. 01
0.9905
Source
DF
Type II SS
Mean Square
F Value
Pr > F
cohigh
1
119.8844004
119.8844004
310.69
<.0001
hchigh
1
62. 8472190
62.8472190
162.87
<.0001
cat type
3
29.4048691
9. 8016230
25. 40
<.0001
model yr
22
22.6215572
1. 0282526
2. 66
<.0001
disp
1
4.4634236
4.4634236
11.57
0. 0007
avgtotpower
1
3.1275183
3.1275183
8.11
0.0044
fi type
2
2.6930503
1.3465251
3.49
0.0306
tran type
1
1.8334656
1.8334656
4.75
0.0293
zippy
1
1.7574904
1.7574904
4.55
0. 0329
colimit
6
0.9338468
0.1556411
0. 40
0. 8773
aspirated
1
0.6414837
0.6414837
1. 66
0.1973
fedcat
5
0.4108205
0.0821641
0.21
0.9572
odometer
1
0.1795189
0.1795189
0. 47
0.4952
repairs
1
0.0088441
0.0088441
0. 02
0.8797
hclimit
2
0.0073997
0.0036998
0. 01
0.9905
Parameter
Intercept
cohigh
cohigh
hchigh
Estimate
1.750898279 B
-0.530705315 B
0.000000000 B
-0.360319448 B
Standard
Error
0.37135049
0. 03010856
0. 02823336
/camwheels/cam/epaco2ch4/vclch4gas.sas
t Value
4.71
-17.63
-12.76
Pr > |t|
<.0001
<.0001
<.0001
Dl-3
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 4
15:04 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Parameter
hchigh
cat_type
cat_type
cat_type
cat_type
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
1
3WAY
NONE
OX3W
OXID
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
Estimate
0.000000000 B
-0.119099478 B
-0.138096375 B
0.090853819 B
0.000000000 B
1.076357565 B
0.272128304 B
1.701813631 B
0.511262197 B
0.468483893 B
0.532435777 B
0.268678894 B
0.216286785 B
0.138749222 B
0.040988714 B
0.140682037 B
0.015719533 B
0.006483697 B
0.045776109 B
0.089250038 B
0.147466596 B
0.066569452 B
0.066534359 B
0.051606537 B
0.023407596 B
0.010457261 B
-0.021204302 B
-0.024566220 B
Standard
Error
0. 04232176
0.15678614
0.04032700
0.73074435
0.65002277
0.40220451
0.30848176
0.30480613
0.28211182
0.17774703
0.16669510
0.17079159
0.16516999
0.16740902
0.16576401
0.16580281
0.16599896
0.16528617
0.16608867
0.16492058
0.16911055
0.17506923
0.18378894
0.18486959
0.21470060
0.20175528
t Value
-2. 81
-0. 88
2.25
1. 47
0. 42
4.23
1. 66
1.54
1. 89
1.51
1.30
0. 81
0.25
0. 84
0. 09
0. 04
0.28
0.54
0. 89
0. 40
0.39
0.29
0.13
0.06
-0.10
-0.12
Pr > |t|
0.0049
0.3785
0. 0243
0.1408
0.6755
<.0001
0.0975
0.1244
0.0592
0.1307
0.1945
0.4166
0.8040
0.4008
0.9245
0.9688
0.7827
0.5892
0.3746
0.6865
0.6940
0.7682
0.8987
0.9549
0.9213
0.9031
/camwheels/cam/epaco2ch4/vclch4gas.sas
Dl-4
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 5
15:04 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
model yr
1997
-0.014041294 B
0
20584545
-0. 07
0
9456
model yr
1998
0.000000000 B
disp
0.159311999
0
04684166
3.40
0
0007
avgtotpower
-0.067619443
0
02375142
1
K)
CO
cn
0
0044
fi type
NOTFI
0.073435103 B
0
03211880
2.29
0
0223
fi type
PFI
-0.012123895 B
0
02639176
o
1
0
6460
fi type
TBI
0.000000000 B
tran type
AUTO
-0.048191767 B
0
02210825
1
K)
1—1
CO
0
0293
tran type
MANUAL
0.000000000 B
zippy
-0.388720753
0
18214158
-2.13
0
0329
colimit
3.2
-0.381425695 B
0
55483181
-0. 69
0
4918
colimit
3.4
-0.343816728 B
0
30598589
-1.12
0
2612
colimit
4.4
-0.368798564 B
0
28826983
1
1—1
K)
CO
0
2008
colimit
5
0.025062384 B
0
69298506
0. 04
0
9712
colimit
6.7
-0.462028694 B
0
48565840
1
O
Cn
0
3415
colimit
7
-0.383101880 B
0
30578055
1
l—1
K)
Cn
0
2103
colimit
10
-0.108847750 B
0
07371866
1
l—1
CO
0
1399
colimit
14. 4
0.163883661 B
0
71262930
0.23
0
8181
colimit
15
-0.319782213 B
0
37630703
LO
CO
o
1
0
3955
colimit
18
0.000000000 B
colimit
20
0.000000000 B
colimit
39
0.000000000 B
aspirated
CHARGED
0.075313499 B
0
05841144
1.29
0
1973
aspirated
NATURAL
0.000000000 B
fedcat
Fed HDV
-0.090115646 B
0
69701631
1
o
1—1
CO
0
8971
fedcat
Fed LDT1
0.100891546 B
0
29876766
0.34
0
7356
fedcat
Fed LDT2
0.094702747 B
0
41385733
0.23
0
8190
fedcat
Fed LDT3
0.165994182 B
0
30724871
0.54
0
5890
/camwheels/cam/epaco2ch4/vclch4gas.sas
Dl-5
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 6
15:04 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Parameter
fedcat
fedcat
odometer
repairs
repairs
hclimit
hclimit
hclimit
hclimit
hclimit
hclimit
hclimit
hclimit
Fed_LDT4
Fed_LDV
A
B
0.25
0. 41
0.8
1.18
1.5
1.7
2
3.4
Estimate
-0.371249448
0.000000000
0.000000216
0.003562605
0.000000000
-0.040474305
-0.006131277
0.000000000
0.000000000
0.000000000
0.000000000
0.000000000
0.000000000
Standard
Error
96358659
00000032
02353201
40892905
41621952
t Value
-0.39
0
0
-0
-0
68
15
10
01
Pr > |t|
0.7000
4952
8797
9212
9882
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclch4gas.sas
Dl-6
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 7
15:04 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
5086
0
5.3486827
3.5797350
3.2000000
39.0000000
hclimit
5086
0
0.5189501
0.3034812
0.2500000
3.4000000
disp
5086
0
2.7835101
1.1183247
0.9996722
7.5385120
testwght
5086
0
3203.09
598.4195402
2000.00
8800.00
road hp
5086
0
8.6903854
2.4555590
3.2000000
23.4000000
odometer
5086
0
56699.18
31873.52
343.0000000
241829.00
Pi
5086
0
0.3674121
0
0.3674121
0.3674121
p2
5086
0
0.0260916
0
0.0260916
0. 0260916
p3
5086
0
0
0
0
0
p4
5086
0
0
0
0
0
avgtotpower
5086
0
5.6513341
1.1524073
3.1558463
14.7178308
temp
5086
0
75.0622690
0.5506712
75. 0000000
80. 0000000
rvp
5086
0
8.9752064
0.0733836
8.7000000
9.2000000
mpg
5086
0
22.5615740
4.6915214
6.3062467
46.2930740
co2
5086
0
391.2446506
85.6997994
168.0000000
1397.50
gco2
5086
0
4319.92
946.2519541
1854.97
15430.46
gco2 s
5086
0
2.3015008
0.5041300
0.9882618
8.2208084
ch4
5086
0
0.0948122
0.1273688
0.0050000
4.3600000
gch4
5086
0
1.0468666
1.4063393
0.0552074
48.1408189
mgch4 s
5086
0
0.5577339
0.7492484
0. 0294126
25.6477458
/camwheels/cam/epaco2ch4/vclch4gas. sas
Dl-7
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 8
15:04 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
5086
100.00
5086
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
12
0.24
12
0.24
Fed LDT1
473
CO
O
485
9.54
Fed LDT2
23
LO
o
508
9.99
Fed LDT3
77
1.51
585
11.50
Fed LDT4
1
o
o
K)
586
11.52
Fed LDV
4500
CO
CO
CO
5086
100.00
/camwheels/cam/epaco2ch4/vclch4gas. sas
Dl-8
-------
osite
l_yr
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 9
15:04 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
Frequency Percent Frequency Percent
1
o
o
K)
1
o
o
K)
1
0. 02
2
0. 04
5
0.10
7
0.14
35
0. 69
42
0. 83
43
0. 85
85
1. 67
105
2.06
190
3.74
188
3.70
378
7. 43
1009
19.84
1387
27.27
267
5.25
1654
32.52
420
8.26
2074
40.78
269
5.29
2343
46. 07
425
8.36
2768
54. 42
380
7. 47
3148
61. 90
382
7.51
3530
69. 41
437
8.59
3967
78. 00
308
6.06
4275
84. 05
356
7. 00
4631
91. 05
150
2. 95
4781
O
O
84
1. 65
4865
95. 65
51
1. 00
4916
96. 66
52
1. 02
4968
97. 68
27
0.53
4995
98.21
39
0.77
5034
98. 98
37
0.73
5071
99. 71
15
0.29
5086
100.00
/camwheels/cam/epaco2ch4/vclch4gas. sas
Dl-9
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 10
15:04 Friday, December 7, 2001
The
FREQ Procedure
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
NOTFI
2203
43. 31
2203
43. 31
PFI
1724
33. 90
3927
77.21
TBI
1159
22.79
5086
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
2639
51. 89
2639
51. 89
NONE
20
0.39
2659
52.28
OX3W
1665
32.74
4324
CO
cn
o
K)
OXID
7 62
1—1
CO
5086
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
3
5
0.10
5
0.10
4
2984
58. 67
2989
58.77
5
8
0.16
2997
Cn
CO
CO
6
1509
29. 67
4506
O
CO
CO
8
580
11. 40
5086
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
CHARGED
132
2. 60
132
2. 60
NATURAL
4954
97. 40
5086
100.00
/camwheels/cam/epaco2ch4/vclch4gas.sas
Dl-10
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 11
15:04 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
tran_type Frequency Percent Frequency Percent
AUTO
MANUAL
3434
1652
67.52
32. 48
3434
5086
67.52
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
A
B
964
4122
18. 95
81. 05
964
5086
18. 95
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
4170
916
81. 99
18. 01
4170
5086
81. 99
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
3887
1199
76. 43
23. 57
3887
5086
76. 43
100.00
sched id
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
FTP 5086 100.00 5086 100.00
/camwheels/cam/epaco2ch4/vclch4gas.sas
Dl-11
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 12
15:04 Friday, December 7, 2001
The FREQ Procedure
start run
Frequency
5086
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
5086
100.00
soakcat Frequency Percent
5086 100.00
Cumulative Cumulative
Frequency Percent
5086
100.00
aeon Frequency
0 5086
Cumulative Cumulative
Percent Frequency Percent
100.00
5086
100.00
tempcat Frequency Percent
25 5086 100.00
Cumulative
Frequency
Cumulative
Percent
5086
100.00
altcat Frequency Percent
Cumulative
Frequency
Cumulative
Percent
5081
5
99.90
0.10
5081
5086
99.90
100.00
/camwheels/cam/epaco2ch4/vclch4gas.sas
Dl-12
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 13
15:04 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
9 5086 100.00 5086 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 5086 100.00 5086 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 5086 100.00 5086 100.00
/camwheels/cam/epaco2ch4/vclch4gas.sas
Dl-13
-------
Appendix D2
Dependence of gCH4/s for Gasoline Vehicles on Operating Conditions
-------
CH4 Operating Conditions
Class
msid cause
08:49 Tuesday, December 4, 2001 4
The GLM Procedure
Class Level Information
Levels Values
3782 0B65F131376_2508 0B65F131376_2511 0B7 6G106479_2507 0E91A117828_2825 0E91A176374_2241
0E91A176374_2342 0E92A202073_2826 0F02A214965_2845 0F03A240421_2830 0F03A240421_3015
0F03B153582_2829 0F14B604695_2829 0F40A135116_2508 0F40A135116_2511 0H87B156058_2827
0H87D142470_2824 0H87F137227_2507 0H87F141911_3016 0K32B621588_2828 0K36B613242_2823
0K36B613242 3013 0K91A224584 2824 0P24FA4350011 22 0P24FA4350011 23 0T10A140625 2240
YV1AA8842M145493 YV1AA8855M188530 YV1AX474XE203625 YV1AX4925B119411 YV1AX8848F111957
YV1AX8855F161975 YV1AX8859F164042 YV1DX8740F212838 YV1DX8741F218149 YV1FX8756H111331
YV1JS8835N105424 YV1LS5500R216469 ZFAA500B8B818238 ZL24AAD232351_25 ZL44A9D321918_22
ZL44A9D321918 23 ZL44AAD170176 25
sched id
35 ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5 CACYC6 CACYC7
F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G FWY-HI HWFET LA92 LSP1
LSP2 LSP3 NYCC RAMP SC03 SCC12 SCC36 ST01 UNCFTP US06
aeon
oxyind
altcat
soakcat
2 0 1
2 OR
1 L
3 GE60 LT60 None
Number of observations 34479
/camwheels/cam/epaco2ch4/oplch4.sas
D2-1
-------
CH4 Operating Conditions 08:49 Tuesday, December 4, 2001 23
The GLM Procedure
Dependent Variable: mgch4 s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
3822
13366.70412
3.49731
15. 68
<.0001
Error
30656
6836.03783
0.22299
Corrected Total
34478
20202.74195
R-Square
Coeff Var Root
MSE mgch4 s
Mean
0.661628
84.
.71183 0.472220 0.557443
Source
DF
Type I SS
Mean Square
F Value
Pr > F
msid cause
3781
11831.16265
3.12911
1—1
O
CO
<.0001
sched id
34
1413.37742
41.56992
186.42
<.0001
avgtotpower
1
81.15705
81.15705
363.95
<.0001
rvp
1
22.43448
22. 43448
100.61
<.0001
soakcat
2
15.18422
7.59211
34. 05
<.0001
oxyind
1
2.20496
2.20496
9.89
0. 0017
aeon
1
0.46158
0.46158
2. 07
0.1502
temp
1
0.72177
0.72177
3.24
0.0720
altcat
0
0.00000
Source
DF
Type II SS
Mean Square
F Value
Pr > F
msid cause
3781
10393.97712
2.74900
12.33
<.0001
sched id
34
153.65105
4.51915
20.27
<.0001
avgtotpower
1
82.76269
82.76269
371.15
<.0001
rvp
1
20.78444
20.78444
93.21
<.0001
soakcat
2
15.16488
7.58244
CO
O
O
<.0001
oxyind
1
2.08982
2.08982
9. 37
0. 0022
D2-2
-------
aeon
temp
altcat
1 0.82452 0.82452 3.70 0.0545
1 0.72177 0.72177 3.24 0.0720
0 0.00000
/camwheels/cam/epaco2ch4/oplch4.sas
D2-3
-------
CH4 Operating Conditions 08:49 Tuesday, December 4, 2001 24
The GLM Procedure
Dependent Variable: mgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
0.336701880 B
0.30323952
1.11
0.2669
msid cause
0B65F131376 2508
0.055917686 B
0.38561316
0.15
0. 8847
msid cause
0B65F131376 2511
-0.243204133 B
0.38561279
-0. 63
0.5282
msid cause
0B76G106479 2507
-0.138118553 B
0.38564495
-0.36
0.7202
msid cause
ZL24AAD232351 25
0.231676200 B
0.33391097
0. 69
0.4 87 S
msid cause
ZL44A9D321918 22
0.763772897 B
0.38556633
1. 98
0.0476
msid cause
ZL44A9D321918 23
-0.059488463 B
0.38558679
1
o
1—1
en
0.8774
msid cause
ZL44AAD170176 25
0.000000000 B
sched id
ART-CD
-0.339470143 B
0. 09133579
-3. 72
0.0002
sched id
ART-EF
0.030716778 B
0. 08437506
0.36
0.7158
sched id
CAART1
-0.034978474 B
0. 09143282
-0.38
0.7020
sched id
CAART2
-0.062999657 B
0. 08662475
-0.73
0.4671
sched id
CAART3
0.176627194 B
0. 08476102
2. 08
0.0372
sched id
CACYC1
-0.284403191 B
0. 08686207
-3.27
0.0011
sched id
CACYC2
0.085399893 B
0. 08102260
1. 05
0.2919
sched id
CACYC3
-0.027901970 B
0. 08472055
1
o
CO
CO
0.7419
sched id
CACYC4
0.011866646 B
0. 08717975
0.14
0.8917
sched id
CACYC5
-0.129613075 B
0. 09056176
-1. 43
0.1524
sched id
CACYC6
0.125049845 B
0. 09081224
1.38
0.1685
sched id
CACYC7
0.172064705 B
0. 09385265
1. 83
0.0668
sched id
F505
-0.104863438 B
0.06377292
-1. 64
0.1001
sched id
FTP bnl
-0.250109587 B
0. 09016739
-2.77
0. 0055
sched id
FTP bn2
0.030687186 B
0.05940822
0.52
0.6055
sched id
FTP bn3
-0.067599949 B
0.08308866
1
o
CO
1—1
0. 4159
sched id
FWY-AC
-0.314907690 B
0.08295764
1
CO
CO
o
0.0001
sched id
FWY-D
-0.827758699 B
0.06392563
1
1—1
K)
Cn
<.0001
sched id
FWY-E
-0.457704049 B
0. 08478128
-5. 40
<.0001
sched id
FWY-F
-0.144876430 B
0.07115834
1
K)
O
0.0418
sched id
FWY-G
-0.141059377 B
0.08841566
-1. 60
0.1106
sched id
FWY-HI
-1.061201542 B
0.05863851
1
1—1
CO
1—1
o
<.0001
D2-4
-------
sched id
HWFET
-0.169337020 B
0. 08466081
1
K)
O
O
0. 0455
sched id
LA92
-0.177465545 B
0.06529694
-2.72
0.0066
sched id
LSP1
0.153943160 B
0.06888867
2.23
0. 0254
sched id
LSP2
0.220622894 B
0.06827681
3.23
0. 0012
sched id
LSP3
0.353875101 B
0.06800364
5.20
<.0001
sched id
NYCC
0.066248080 B
0.07674299
0.86
0.3880
/camwheels/cam/epaco2ch4/oplch4.sas
D2-5
-------
Dependent Variable: mgch4_s
Parameter
CH4 Operating Conditions
The GLM Procedure
Estimate
08:49 Tuesday, December 4, 2001 127
Standard
Error
t Value
Pr > |t|
sched id
RAMP
-0.274856519 B
0
09292203
-2. 96
0.0031
sched id
SC03
-0.054087116 B
0
15752950
1
o
CO
0.7313
sched id
SCC12
0.086416352 B
0
06261358
1.38
0.1675
sched id
SCC36
-0.116883620 B
0
05191578
-2.25
0. 0244
sched id
ST01
-0.084344723 B
0
07798908
-1. 08
0.2795
sched id
UNCFTP
0.102637468 B
0
07405760
1.39
0.1658
sched id
USO 6
0.000000000 B
avgtotpower
0.043095100
0
00223694
19.27
<.0001
rvp
0.030655471
0
00317529
9. 65
<.0001
soakcat
GE60
0.597841064 B
0
07297846
CO
1—1
<.0001
soakcat
LT60
0.087125848 B
0
06472436
1.35
0.1783
soakcat
None
0.000000000 B
oxyind
0
-0.025844490 B
0
00844224
-3.06
0. 0022
oxyind
R
0.000000000 B
aeon
0
-0.084375009 B
0
04387908
-1. 92
0.0545
aeon
1
0.000000000 B
temp
-0.002155769
0
00119825
1
1—1
CO
o
0.0720
altcat
L
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the normal
equations. Terms whose estimates are followed by the letter 'B' are not uniquely estimable.
/camwheels/cam/epaco2ch4/oplch4.sas
D2-6
-------
CH4 Operating Conditions 15:00 Friday, December 7, 2001 1
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
33230
1249
4. 9515679
3.2832126
3.2000000
39.0000000
hclimit
33134
1345
0.4988568
0.2693203
0.2500000
3.4000000
disp
34479
0
2.8949064
1.2166643
0.9996722
8.3906916
testwght
34479
0
3363.11
972.8203208
2000.00
11050.00
road hp
34479
0
9.0124569
3.3836233
3.2000000
32.5000000
odometer
34361
118
56363.82
31890.62
47.0000000
241829.00
Pi
34479
0
0.3503296
0. 0482378
0
0. 4411765
p2
34479
0
0.0326505
0.0275740
0
0.2081967
p3
34479
0
0. 000559300
0.0040452
0
0. 0415973
p4
34479
0
0. 000169146
0.0013996
0
0.0149750
avgtotpower
34479
0
6.5363697
4.8170078
0.2568667
76.6929135
temp
34479
0
76.3956611
4.2140226
47. 0000000
116.0000000
rvp
34479
0
9. 3941820
1.0944655
6. 3000000
12.2000000
mpg
34479
0
22.1155792
6. 4898716
0.8857765
81.5800000
co2
34476
3
433.1234573
206.9747057
16.8000000
3888.40
gco2
34479
0
1502.13
845.4016808
60.3292667
38594.16
gco2 s
34479
0
2.4570635
1.2699634
0.1197009
71.2505440
ch4
34471
8
0.0982663
0.1774981
0. 0010000
8.7500000
gch4
34479
0
0.3297668
0.4659128
-5.9049075
19.1427067
mgch4 s
34479
0
0.5574429
0.7654805
-6.8107353
26.5764556
/camwheels/cam/epaco2ch4/oplch4.sas
D2-7
-------
CH4 Operating Conditions 15:00 Friday, December 7, 2001 2
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
34479
100.00
34479
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
129
0.37
129
0.37
Fed HDV
1248
3. 62
1377
3. 99
Fed LDT1
2926
CO
d^
4303
1—1
K)
d^
CO
Fed LDT2
328
0. 95
4631
1—1
CO
d^
CO
Fed LDT3
481
1. 40
5112
1—1
d^
CO
CO
Fed LDT4
13
o
o
5125
14. 86
Fed LDV
29354
CO
en
i—1
d^
34479
100.00
/camwheels/cam/epaco2ch4/oplch4.sas
D2-8
-------
l_yr
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
CH4 Operating Conditions 15:00 Friday, December 7, 2001 3
The FREQ Procedure
Cumulative Cumulative
Frequency Percent Frequency Percent
17
LO
O
o
17
LO
O
o
12
0. 03
29
0. 08
30
0. 09
59
0.17
153
0. 44
212
0. 61
197
0.57
409
1.19
333
0. 97
742
2.15
835
2. 42
1577
4.57
4774
1—1
CO
CO
cn
6351
1—1
CO
K)
1493
4.33
7844
22.75
2841
8.24
10685
CO
o
1925
5.58
12610
36. 57
3036
8. 81
15646
45.38
3133
9.09
18779
54. 47
3016
8.75
21795
63.21
3143
9.12
24938
72.33
2318
6. 72
27256
79. 05
2277
6. 60
29533
LO
CO
1332
3.86
30865
CO
Cn
K)
840
2. 44
31705
91. 95
678
1. 97
32383
93. 92
385
1.12
32768
95. 04
549
1.59
33317
96. 63
429
1.24
33746
97. 87
561
1. 63
34307
99. 50
172
0.50
34479
100.00
/camwheels/cam/epaco2ch4/oplch4.sas
D2-9
-------
CH4 Operating Conditions 15:00 Friday, December 7, 2001 4
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
419
1.22
419
1.22
NOTFI
11183
32. 43
11602
33. 65
PFI
14215
41.23
25817
74. 88
TBI
8662
25.12
34479
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
14
0. 04
14
0. 04
3WAY
19753
57.29
19767
57.33
NONE
83
0.24
19850
57.57
OX3W
10579
30. 68
30429
88.25
OXID
4050
11.75
34479
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
3
29
0. 08
29
0. 08
4
19202
55. 69
19231
55.78
5
54
0.16
19285
55. 93
6
10443
30.29
29728
86.22
8
4661
13. 52
34389
99. 74
10
90
0.26
34479
100.00
/camwheels/cam/epaco2ch4/oplch4.sas
D2-10
-------
CH4 Operating Conditions 15:00 Friday, December 7, 2001 5
The FREQ Procedure
Cumulative Cumulative
aspirated Frequency Percent Frequency Percent
27 0.08 27 0.08
CHARGED 1102 3.20 1129 3.27
NATURAL 33350 96.73 34479 100.00
Cumulative Cumulative
tran_type Frequency Percent Frequency Percent
14 0.04 14 0.04
AUTO 24372 70.69 24386 70.73
MANUAL 10093 29.27 34479 100.00
Cumulative Cumulative
repairs Frequency Percent Frequency Percent
A
3252
CO
3252
CO
B
5904
17.12
9156
26.56
S
25323
73. 44
34479
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
1249
3. 62
1249
3. 62
0
27382
79. 42
28631
CO
CO
o
1
5848
16.96
34479
100.00
/camwheels/cam/epaco2ch4/oplch4.sas
D2-11
-------
CH4 Operating Conditions 15:00 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
1345 3.90 1345 3.90
0 25941 75.24 27286 79.14
1 7193 20.86 34479 100.00
/camwheels/cam/epaco2ch4/oplch4.sas
D2-12
-------
CH4 Operating Conditions 15:00 Friday, December 7, 2001 7
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
ART-CD
45
o
1—1
CO
45
o
1—1
CO
ART-EF
64
0.19
109
0.32
CAART1
47
0.14
156
0. 45
CAART2
50
0.15
206
0. 60
CAART3
50
0.15
256
0.74
CACYC1
39
0.11
295
0.86
CACYC2
49
0.14
344
1. 00
CACYC3
47
0.14
391
1.13
CACYC4
48
0.14
439
1.27
CACYC5
45
0.13
484
1. 40
CACYC6
50
0.15
534
1.55
CACYC7
49
0.14
583
1. 69
F505
239
0. 69
822
2.38
FTP bnl
9562
27.73
10384
30.12
FTP bn2
9515
27. 60
19899
57.71
FTP bn3
9557
27.72
29456
85. 43
FWY-AC
42
0.12
29498
85.55
FWY-D
76
0.22
29574
85.77
FWY-E
45
0.13
29619
85. 90
FWY-F
112
0.32
29731
86.23
FWY-G
75
0.22
29806
LO
CO
FWY-HI
111
0.32
29917
86. 77
HWFET
50
0.15
29967
86. 91
LA92
111
0.32
30078
87.24
LSP1
515
1. 49
30593
88.73
LSP2
517
1.50
31110
90.23
LSP3
517
1.50
31627
91.73
NYCC
164
0. 48
31791
92.20
RAMP
30
0. 09
31821
92.29
SC03
14
0. 04
31835
92.33
SCC12
1084
3.14
32919
95. 48
/camwheels/cam/epaco2ch4/oplch4.sas
D2-13
-------
CH4 Operating Conditions 15:00 Friday, December 7, 2001 8
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
SCC36
1032
2. 99
33951
98. 47
ST01
142
0. 41
34093
CO
CO
CO
UNCFTP
102
0.30
34195
1—1
CO
US0 6
284
o
CO
K)
34479
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
O
33839
98.14
33839
CO
1—1
R
142
0. 41
33981
98.56
S
498
1. 44
34479
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
GE60
9640
27. 96
9640
27. 96
LT60
9657
K)
CO
O
1—1
19297
55. 97
None
15182
O
CO
34479
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0 34277 99.41 34277 99.41
1 202 0.59 34479 100.00
/camwheels/cam/epaco2ch4/oplch4.sas
D2-14
-------
CH4 Operating Conditions 15:00 Friday, December 7, 2001 9
The FREQ Procedure
Cumulative Cumulative
tempcat Frequency Percent Frequency Percent
5 3 0.01 3 0.01
15 5 0.01 8 0.02
25 33570 97.36 33578 97.39
35 575 1.67 34153 99.05
45 326 0.95 34479 100.00
Cumulative Cumulative
altcat Frequency Percent Frequency Percent
L 34479 100.00 34479 100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
6
146
0. 42
146
0. 42
7
510
1. 48
656
1. 90
8
556
1. 61
1212
3. 52
9
26881
77. 96
28093
81. 48
10
24
0. 07
28117
81.55
11
1020
2. 96
29137
84.51
12
5342
15. 49
34479
100.00
/camwheels/cam/epaco2ch4/oplch4.sas
D2-15
-------
oxygenate
EtOH
MTBE
MeOH_EtOH
MeOH_TBA
None
CH4 Operating Conditions 15:00 Friday, December 7, 2001 10
The FREQ Procedure
Frequency
Percent
Cumulative
Frequency
2638
3214
68
6
28553
7. 65
9. 32
0.20
0. 02
82. 81
2638
5852
5920
5926
34479
Cumulative
Percent
7. 65
16. 97
17.17
17.19
100.00
oxyind
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
O
R
5926
28553
17.19
82. 81
5926
34479
17.19
100.00
/camwheels/cam/epaco2ch4/oplch4.sas
D2-16
-------
Appendix D3
Dependence of gCH4/s for Gasoline Vehicles on Special Conditions
-------
CH4 Start VS. Run (HR505 VS. FTP bnl)
15:10 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Class Levels Values
msid_cause 57 1B3EJ46X0TN27942
~ 1B7GL23X6VS207 65
1FALP52U5TG19515
1FBJS31H4MHA6371
1FTEF15N3TLA6204
1G1JC124 6TM13549
1G4CU52155H63470
1GCGC24K6PE21849
1GMDX0 6E4VD13010
1GNGK2 6JXVJ3 67 62
1P4GP44R0TB4918 6
2B5WB35Z0RK54427
2GCGC29K2P110 667
3B7KF23W0SM16419
4T1CG12K8TU71331
sched_id 2 F505 FTP_bnl
aeon 2 0 1
oxyind 1 R
altcat 1 L
1B4GP44R7VB402 60
1B7GL23X8TS64978
1FALP53S2VG11918
1FMCU22X2TUC9731
1FTEF15Y7TLB9434
1G2NE52T3VM51809
1G4NJ52MXTC43690
1GCGC3 4 J 6VE13736
1GNDT13W07227189
1MELM50U7TG64 654
1P4GP44R5VB43200
2CNBE18 69T693495
2P4GH2536R238607
3B7KF23Z8VG82444
1B4GP54L1TB47731
1B7HC1643T5 65407
1FALP66L6SK15994
1FMDA11U9VZA2 50 6
1FTHE24H2PHA220 6
1G2WJ52M1TF2048 6
1G82G5281S215558
1GCGK24K6SE11319
1GNDT13W95224989
1MELM53S6VG610 64
2B4GP4431TR82162
2G4WB52L9S145158
2P4GH2537SR19053
3B7KF23ZXVM55883
1B7GL23X6V5207 65
1FALP1391VW1758 6
1FASP15J1SW617 65
1FTEF1547TLB9434
1FTJE34Y8SHB9014
1G4AG55M85 650 694
1G8ZF5284SZ30318
1GK0M19W9VB52228
1GNFK16R9VJ38 687
1N6SD11S2SC45944
2B4GP4534TR51823
2G4WS52M1V141616
2P4GP2437VR34032
4T1BF22K2VU90051
Number of observations 280
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-1
-------
CH4 Start VS. Run (HR505 VS. FTP bnl)
2
15:10 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
61
72.23034792
1.18410406
22.22
<.0001
Error
218
11.61831182
0. 05329501
Corrected Total
279
83.84865974
R-Square
Coeff Var Root
MSE mgch4 s
Mean
0.861437
40.
,15069 0.230857 0.574977
Source
DF
Type I SS
Mean Square
F Value
Pr > F
msid cause
56
61.43819943
1.09711070
20.59
<.0001
sched id
1
10.16580736
10.16580736
190.75
<.0001
avgtotpower
1
0.56606558
0.56606558
10. 62
0.0013
temp
1
0.00003665
0.00003665
0. 00
0.9791
aeon
1
0. 04049229
0.04049229
0.76
0.3844
rvp
1
0. 01974661
0.01974661
0.37
0.5434
oxyind
0
0.00000000
altcat
0
0.00000000
Source
DF
Type II SS
Mean Square
F Value
Pr > F
msid cause
56
30.40949745
0.54302674
10.19
<.0001
sched id
1
8.46483215
8.46483215
158. 83
<.0001
/camwheels/cam/epaco2ch4/oplch4 SR.sas
D3-2
-------
CH4 Start VS. Run (HR505 VS. FTP bnl)
3
15:10 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Source
avgtotpower
temp
aeon
rvp
oxyind
altcat
DF
1
1
1
1
0
0
Type II SS
0.59550801
0. 04298939
0. 04192025
0.01974661
0.00000000
0.00000000
Mean Square
59550801
04298939
04192025
01974661
F Value
Pr > F
11.17
0
0010
o
CO
1—1
0
3701
0.79
0
3761
0.37
0
5434
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid cause
1B3EJ4 6X0TN27942
1B4GP44R7VB402 60
1B4GP54L1TB47731
1B7GL23X6V5207 65
1B7GL23X6VS207 65
1B7GL23X8TS64978
1B7HC1643T5 65407
1FALP1391VW1758 6
1FALP52U5TG19515
1FALP53S2VG11918
1FALP66L6SK15994
1FASP15J1SW617 65
1FBJS31H4MHA6371
1FMCU22X2TUC9731
1FMDA11U9VZA2 50 6
1FTEF1547TLB9434
1FTEF15N3TLA6204
2.014349077
0.264230686
0.001708788
0.029478937
0.222403933
0.170023879
0.237106391
0.239889639
0.030878042
0.112947430
0.172775914
0.071953508
0.172621144
0.374663509
-0.100699336
0.036356658
0.052843787
0.101159858
2.59109539
0.24304512
0.20262209
0.18886922
0.19033673
0.24083502
0.19359443
0.21022509
0.24018662
0.23878016
0.19165690
0.23989093
0.20366901
0.23870016
0.24146896
0.20364427
0.24325325
0.20730635
0.78
1. 09
0. 01
0.16
1.17
0.71
1.22
1.14
0.13
0. 47
0. 90
0.30
0. 85
1.57
-0. 42
0.18
0.22
0. 49
0.4378
0.2782
0.9933
0.8761
0.2439
0.4810
0.2220
0.2551
0.8978
0.6367
0.3683
0.7645
0.3976
0.1180
0.6771
0.8585
0.8282
0.6261
/camwheels/cam/epaco2ch4/oplch4 SR.sas
D3-3
-------
CH4 Start VS. Run (HR505 VS. FTP_bnl) 4
15:10 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1FTEF15Y7TLB9434
0.110552261 B
0.23585083
0. 47
0.6397
msid
cause
1FTHE24H2PHA220 6
0.840010918 B
0.22710120
3.70
0.0003
msid
cause
1FTJE34Y8SHB9014
1.522821427 B
0.20851355
7.30
<.0001
msid
cause
1G1JC124 6TM13549
0.146905302 B
0.24025778
0. 61
0.5415
msid
cause
1G2NE52T3VM51809
0.046709369 B
0.23873772
0.20
0.8451
msid
cause
1G2WJ52M1TF2048 6
0.109695251 B
0.23852112
0.46
0.6460
msid
cause
1G4AG55M85 650 694
0.049210312 B
0.19119077
0.26
0.7971
msid
cause
1G4CU52155H63470
0.097990084 B
0.23977568
0. 41
0.6832
msid
cause
1G4NJ52MXTC43690
0.178801190 B
0.23982384
0.75
0.4567
msid
cause
1G82G5281S215558
0.220609376 B
0.19722191
1.12
0.2645
msid
cause
1G8ZF5284SZ30318
0.184632994 B
0.18712997
0. 99
0.3249
msid
cause
1GCGC24K6PE21849
0.416964159 B
0.24353615
1.71
0.0883
msid
cause
1GCGC3 4 J 6VE13736
0.203100944 B
0.22939923
0. 89
0.3769
msid
cause
1GCGK24K6SE11319
0.545305853 B
0.23146443
2.36
0.0194
msid
cause
1GK0M19W9VB52228
0.069795511 B
0.24935480
0.28
0.7798
msid
cause
1GMDX0 6E4VD13010
-0.012075419 B
0.19191912
O
O
1
0.9499
msid
cause
1GNDT13W07227189
-0.051060946 B
0.19724572
-0.26
0.7960
msid
cause
1GNDT13W95224989
0.026299213 B
0.24322134
0.11
0. 9140
msid
cause
1GNFK16R9VJ38 687
-0.177968314 B
0.25605941
-0.70
0. 4878
msid
cause
1GNGK2 6JXVJ3 67 62
-0.062709533 B
0.23925456
-0.26
0.7935
msid
cause
1MELM50U7TG64 654
0.121388390 B
0.23854912
0.51
0.6114
msid
cause
1MELM53S6VG610 64
0.160083742 B
0.24009156
0. 67
0.5056
msid
cause
1N6SD11S2SC45944
0.049591496 B
0.23843206
0.21
0. 8354
msid
cause
1P4GP44R0TB4918 6
0.062310587 B
0.24023855
0.26
0.7956
msid
cause
1P4GP44R5VB43200
0.041722900 B
0.23890484
0.17
0.8615
msid
cause
2B4GP4431TR82162
0.040790098 B
0.19152013
0.21
0. 8315
msid
cause
2B4GP4534TR51823
0.048914805 B
0.19179064
0.26
0.7989
msid
cause
2B5WB35Z0RK54427
0.298952768 B
0.22854522
1.31
0.1922
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-4
-------
CH4 Start VS. Run (HR505 VS. FTP bnl)
The GLM Procedure
Dependent Variable: mgch4_s
15:10 Friday, December 7, 2001
Parameter
Estimate
Standard
Error
t Value Pr > |t|
msid cause
2CNBE18 69T693495
-0.040192884 B
0.23944859
-0.17
0.8669
msid cause
2G4WB52L9S145158
0.034252889 B
0.19137012
0.18
0. 8581
msid cause
2G4WS52M1V141616
0.088696179 B
0.23952820
0.37
0.7115
msid cause
2GCGC29K2P110 667
0.173238594 B
0.22812824
0.76
0.4484
msid cause
2P4GH2536R238607
0.039034832 B
0.23847482
0.16
0.8701
msid cause
2P4GH2537SR19053
0.118462134 B
0.23903308
0.50
0.6207
msid cause
2P4GP2437VR34032
0.003520593 B
0.23978270
0. 01
0.9883
msid cause
3B7KF23W0SM16419
0.455652739 B
0.25066433
1. 82
0.0705
msid cause
3B7KF23Z8VG82444
-0.127639871 B
0.23251686
LO
LO
O
1
0.5836
msid cause
3B7KF23ZXVM55883
0.043122740 B
0.25125544
0.17
0.8639
msid cause
4T1BF22K2VU90051
-0.083058621 B
0.18499992
LO
o
1
0.6539
msid cause
4T1CG12K8TU71331
0.000000000 B
sched id
F505
-0.369574339 B
0.02932486
-12.60
<.0001
sched id
FTP bnl
0.000000000 B
avgtotpower
0. 054557698
0.01632133
3. 34
0.0010
temp
-0.006645927
0.00739977
1
o
O
0.3701
aeon
0
-0.128882960 B
0.14532049
1
o
CO
0.3761
aeon
1
0.000000000 B
rvp
-0.165140523
0.27130053
-0. 61
0.5434
oxyind
R
0.000000000 B
altcat
L
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-5
-------
CH4 Start VS. Run (HR505 VS. FTP_bnl) 6
15:10 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
173
107
4.0190751
1.3760135
3.2000000
10. 0000000
hclimit
166
114
0.6425904
0.1919215
0.4100000
0. 8000000
disp
280
0
4.5024465
1.6654567
1.6715831
8.3906916
testwght
280
0
5085.16
1654.35
2581.00
9400.00
road hp
280
0
14.3328571
5.9739391
6.1000000
24.0000000
odometer
276
4
47460.16
36352.18
4829.00
169335.00
Pi
280
0
0.3382745
0.
.000335164
0.3379447
0.3386139
p2
280
0
0.0474771
0.
. 000047041
0.0474308
0. 0475248
p3
280
0
0
0
0
0
p4
280
0
0
0
0
0
avgtotpower
280
0
11.7408472
4.1822879
5.7576284
20.0322887
temp
280
0
80.6150000
7.4145012
65.5000000
101.2000000
rvp
280
0
8.9507143
0.0863405
8.8000000
9.0000000
mpg
280
0
17.3080563
5. 8424126
0.8857765
36.5300000
co2
279
1
547.8844910
155. 4336757
240.3850000
909.0030000
gco2
280
0
2088.65
2103.60
863.1878127
35910.27
gco2 s
280
0
4.1404341
4.1739600
1.7092828
71.2505440
ch4
280
0
0.0807536
0.0769678
0.0010000
0.4640000
gch4
280
0
0.2899836
0.2763911
0.0035909
1.6662369
mgch4 s
280
0
0.5749767
0.5482087
0. 0071106
3. 3060256
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-6
-------
CH4 Start VS. Run (HR505 VS. FTP_bnl) 7
15:10 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
280
100.00
280
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
123
43. 93
123
43. 93
Fed LDT1
6
2.14
129
46. 07
Fed LDT2
70
25. 00
199
71. 07
Fed LDT3
12
4.29
211
75.36
Fed LDT4
2
0.71
213
76. 07
Fed LDV
67
23. 93
280
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
12
4.29
12
4.29
1993
37
13.21
49
17.50
1995
77
27.50
126
o
o
LO
1996
56
20. 00
182
o
o
LO
1997
83
29. 64
265
94. 64
1998
15
5.36
280
100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-7
-------
CH4 Start VS. Run (HR505 VS. FTP_bnl) 8
15:10 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
PFI
254
90.71
254
90.71
TBI
26
9.29
280
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
232
82. 86
232
82. 86
OX3W
8
2.86
240
85.71
OXID
40
14.29
280
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
31
11. 07
31
11. 07
6
132
47.14
163
58.21
8
105
37.50
268
95.71
10
12
4.29
280
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
2
0.71
2
0.71
CHARGED
7
2.50
9
3.21
NATURAL
271
96.79
280
100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-8
-------
CH4 Start VS. Run (HR505 VS. FTP_bnl)
The FREQ Procedure
Cumulative
tran_type Frequency Percent Frequency
AUTO
MANUAL
15:10 Friday, December 7, 2001
Cumulative
Percent
259
21
92.50
7.50
259
280
92.50
100.00
repairs Frequency
Cumulative Cumulative
Percent Frequency Percent
s
280
100.00
280
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
107
173
38.21
61.79
107
280
38.21
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
114
166
40.71
59.29
114
280
40.71
100.00
sched id
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
F505
FTP bnl
142
138
50.71
49.29
142
280
50.71
100.00
/camwheels/cam/epaco2ch4/oplch4 SR.sas
D3-9
-------
CH4 Start
VS. Run (HR505 VS. FTP bnl)
15:10 Friday
The FREQ Procedure
Cumulative
Cumulative
start run
Frequency Percent
Frequency
Percent
R
142
50.71
142
50.71
S
138
49.29
280
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
GE60
138
49.29
138
49.29
None
142
50.71
280
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0
233
83.21
233
83.21
1
47
16.79
280
100.00
Cumulative
Cumulative
tempcat
Frequency
Percent
Frequency
Percent
15
1
0.36
1
0.36
25
230
CO
K)
1—1
231
82.50
35
49
17.50
280
100.00
10
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-10
-------
CH4 Start VS. Run (HR505 VS. FTP bnl)
The FREQ Procedure
altcat
L
Frequency
280
Percent
100.00
Cumulative
Frequency
280
11
15:10 Friday, December 7, 2001
Cumulative
Percent
100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
280
100.00
280
100.00
oxygenate Frequency
None 280
Cumulative Cumulative
Percent Frequency Percent
100.00
280
100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R
280
100.00
280
100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-11
-------
CH4 Start VS. Run (HR505 VS. FTP_bn3)
The GLM Procedure
Class Level Information
12
15:10 Friday, December 7, 2001
Class Levels Values
msid_cause 57 1B3EJ46X0TN27942
~ 1B7GL23X6VS207 65
1FALP52U5TG19515
1FBJS31H4MHA6371
1FTEF15N3TLA6204
1G1JC124 6TM13549
1G4CU52155H63470
1GCGC24K6PE21849
1GMDX0 6E4VD13010
1GNGK2 6JXVJ3 67 62
1P4GP44R0TB4918 6
2B5WB35Z0RK54427
2GCGC29K2P110 667
3B7KF23W0SM16419
4T1CG12K8TU71331
sched_id 2 F505 FTP_bn3
aeon 2 0 1
oxyind 1 R
altcat 1 L
1B4GP44R7VB402 60
1B7GL23X8TS64978
1FALP53S2VG11918
1FMCU22X2TUC9731
1FTEF15Y7TLB9434
1G2NE52T3VM51809
1G4NJ52MXTC43690
1GCGC3 4 J 6VE13736
1GNDT13W07227189
1MELM50U7TG64 654
1P4GP44R5VB43200
2CNBE18 69T693495
2P4GH2536R238607
3B7KF23Z8VG82444
1B4GP54L1TB47731
1B7HC1643T5 65407
1FALP66L6SK15994
1FMDA11U9VZA2 50 6
1FTHE24H2PHA220 6
1G2WJ52M1TF2048 6
1G82G5281S215558
1GCGK24K6SE11319
1GNDT13W95224989
1MELM53S6VG610 64
2B4GP4431TR82162
2G4WB52L9S145158
2P4GH2537SR19053
3B7KF23ZXVM55883
1B7GL23X6V5207 65
1FALP1391VW1758 6
1FASP15J1SW617 65
1FTEF1547TLB9434
1FTJE34Y8SHB9014
1G4AG55M85 650 694
1G8ZF5284SZ30318
1GK0M19W9VB52228
1GNFK16R9VJ38 687
1N6SD11S2SC45944
2B4GP4534TR51823
2G4WS52M1V141616
2P4GP2437VR34032
4T1BF22K2VU90051
Number of observations 280
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-12
-------
Dependent Variable: mgch4_s
Source
Model
Error
Corrected Total
CH4 Start VS. Run (HR505 VS. FTP bn3)
The GLM Procedure
13
15:10 Friday, December 7, 2001
Sum of
DF Squares
61 45.16574432
218 6.23044005
279 51.39618436
Mean Square
0.74042204
0. 02858000
F Value
25. 91
Pr > F
<.0001
R-Square
0. 878776
Coeff Var
40.20212
Root MSE
0.169056
mgch4_s Mean
0. 420516
Source
msid_cause
sched_id
avgtotpower
rvp
temp
aeon
oxyind
altcat
DF
56
1
1
1
1
1
0
0
Type I SS
44.68685108
0.33172201
0.11343946
0.02672033
0. 00123151
0. 00577992
0.00000000
0.00000000
Mean Square
79797948
33172201
11343946
02672033
00123151
00577992
F Value
27. 92
11. 61
3. 97
0. 93
0. 04
0.20
Pr > F
<.0001
0.0008
0.0476
0.3347
0. 8357
0.6534
Source
msid_cause
sched id
DF Type II SS
56 27.32701501
1 0.32139691
Mean Square
0. 48798241
0.32139691
F Value
17. 07
11.25
Pr > F
<.0001
0.0009
/camwheels/cam/epaco2ch4/oplch4 SR.sas
D3-13
-------
CH4 Start VS. Run (HR505 VS. FTP bn3)
15:10 Friday, December 7,
14
2001
The GLM Procedure
Dependent Variable:
mgch4 s
Source
DF
Type II SS
Mean Square
F
Value
Pr
> F
avgtotpower
1
0.10254222
0.10254222
3.59
0.
0595
rvp
1
0.02006389
0.02006389
0.70
0.
4030
temp
1
0.00699329
0.00699329
0.24
0.
6213
aeon
1
0.00577992
0. 00577992
0.20
0.
6534
oxyind
0
0.00000000
altcat
0
0.00000000
Standard
Parameter
Estimate
Error
t
Value
Pr
> 111
Intercept
1.220148477 B
1. 85707596
0. 66
0.5119
msid cause
1B3EJ4 6X0TN27942
0.132122725 B
0.17760711
0.74
0. 4577
msid cause
1B4GP44R7VB402 60
-0.042790892 B
0.14837988
1
o
K)
0.7733
msid cause
1B4GP54L1TB47731
0.000375700 B
0.13831924
0. 00
0.9978
msid cause
1B7GL23X6V5207 65
0.186927449 B
0.13937024
1.34
0.1812
msid cause
1B7GL23X6VS207 65
0.135403144 B
0.17641453
0.77
0.4436
msid cause
1B7GL23X8TS64978
0.197133042 B
0.14177760
1.39
0.1658
msid cause
1B7HC1643T5 65407
0.228848783 B
0.15401550
1. 49
0.1388
msid cause
1FALP1391VW1758 6
-0.032308402 B
0.17589253
1
o
1—1
CO
0. 8544
msid cause
1FALP52U5TG19515
0.024937704 B
0.17484162
0.14
0.8867
msid cause
1FALP53S2VG11918
0.055237417 B
0.14032190
0.39
0.6942
msid cause
1FALP66L6SK15994
-0.009368089 B
0.17561433
LO
o
o
1
0.9575
msid cause
1FASP15J1SW617 65
0.091206954 B
0.14915334
0. 61
0.5415
msid cause
1FBJS31H4MHA6371
0.505656072 B
0.17490747
2. 89
0.0042
msid cause
1FMCU22X2TUC9731
-0.052431058 B
0.17669066
1
o
CO
o
0.7669
msid cause
1FMDA11U9VZA2 50 6
0.020968764 B
0.14910625
0.14
0.8883
msid cause
1FTEF1547TLB9434
0.053900926 B
0.17813259
0.30
0.7625
msid cause
1FTEF15N3TLA6204
0.142933994 B
0.15185655
0. 94
0.3476
/camwheels/cam/epaco2ch4/oplch4 SR.sas
D3-14
-------
CH4 Start VS. Run (HR505 VS. FTP_bn3) 15
15:10 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1FTEF15Y7TLB9434
0.096492524 B
0.17268940
0.56
0.5769
msid
cause
1FTHE24H2PHA220 6
0.788543463 B
0.16646108
4.74
<.0001
msid
cause
1FTJE34Y8SHB9014
1.530274746 B
0.15326808
CO
<.0001
msid
cause
1G1JC124 6TM13549
0.089077583 B
0.17583330
0.51
0.6129
msid
cause
1G2NE52T3VM51809
-0.023844823 B
0.17473429
1
O
1—1
0. 8916
msid
cause
1G2WJ52M1TF2048 6
0.018899820 B
0.17471704
0.11
0. 9140
msid
cause
1G4AG55M85 650 694
0.028181703 B
0.14000787
0.20
0. 8407
msid
cause
1G4CU52155H63470
-0.007232672 B
0.17529971
o
o
1
0.9671
msid
cause
1G4NJ52MXTC43690
0.007780822 B
0.17583474
o
o
0.9647
msid
cause
1G82G5281S215558
0.108976119 B
0.14443916
0.75
0. 4514
msid
cause
1G8ZF5284SZ30318
0.093350994 B
0.13703701
0. 68
0.4965
msid
cause
1GCGC24K6PE21849
0.324369073 B
0.17834597
1. 82
0. 0703
msid
cause
1GCGC3 4 J 6VE13736
0.204466488 B
0.16820619
1.22
0.2255
msid
cause
1GCGK24K6SE11319
0.573336634 B
0.16969468
3. 38
0. 0009
msid
cause
1GK0M19W9VB52228
0.124500877 B
0.18279728
CO
O
0.4965
msid
cause
1GMDX0 6E4VD13010
-0.043525202 B
0.14054288
1
o
CO
1—1
0.7571
msid
cause
1GNDT13W07227189
-0.014995620 B
0.14445231
1
o
1—1
o
0.9174
msid
cause
1GNDT13W95224989
0.047109606 B
0.17807673
0.26
0.7916
msid
cause
1GNFK16R9VJ38 687
-0.100270230 B
0.18755013
-0.53
0.5934
msid
cause
1GNGK2 6JXVJ3 67 62
-0.012029067 B
0.17523653
-0. 07
0.9453
msid
cause
1MELM50U7TG64 654
0.031254160 B
0.17465713
o
1—1
CO
0.8581
msid
cause
1MELM53S6VG610 64
0.028326813 B
0.17562386
0.16
0.8720
msid
cause
1N6SD11S2SC45944
0.019423665 B
0.17464896
0.11
0.9115
msid
cause
1P4GP44R0TB4918 6
0.001168895 B
0.17579766
O
O
1—1
0.9947
msid
cause
1P4GP44R5VB43200
0.003024340 B
0.17494213
o
o
K)
0.9862
msid
cause
2B4GP4431TR82162
-0.004986924 B
0.14025102
o
o
1
0.9717
msid
cause
2B4GP4534TR51823
-0.000551946 B
0.14038921
o
o
o
1
0.9969
msid
cause
2B5WB35Z0RK54427
0.311729415 B
0.16738316
1.86
0.0639
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-15
-------
CH4 Start VS. Run (HR505 VS. FTP bn3)
16
15:10 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value Pr > |t|
msid cause
2CNBE18 69T693495
-0.035698849 B
0.17520926
1
o
K)
O
0.8387
msid cause
2G4WB52L9S145158
-0.006904017 B
0.14010210
LO
O
O
1
0.9607
msid cause
2G4WS52M1V141616
0.016429580 B
0.17532568
o
o
0.9254
msid cause
2GCGC29K2P110 667
0.282142367 B
0.16723653
1. 69
0. 0930
msid cause
2P4GH2536R238607
-0.020505979 B
0.17463403
1
o
1—1
K)
0.90 66
msid cause
2P4GH2537SR19053
0.025817269 B
0.17511343
0.15
0. 8829
msid cause
2P4GP2437VR34032
-0.026052435 B
0.17542333
1
O
1—1
Cn
0. 8821
msid cause
3B7KF23W0SM16419
0.389057773 B
0.18401426
2.11
0. 0356
msid cause
3B7KF23Z8VG82444
-0.014218600 B
0.17045455
CO
o
o
1
0. 9336
msid cause
3B7KF23ZXVM55883
0.063558494 B
0.18412510
0.35
0.7303
msid cause
4T1BF22K2VU90051
-0.096842033 B
0.13546127
-0.71
0. 4754
msid cause
4T1CG12K8TU71331
0.000000000 B
sched id
F505
-0.069650049 B
0.02076977
1
CO
CO
cn
0.0009
sched id
FTP bn3
0.000000000 B
avgtotpower
0. 022745677
0. 01200822
I—1
CO
0.0595
rvp
-0.165737373
0.19780807
CO
o
1
0.4030
temp
0. 002440435
0.00493353
0. 49
0.6213
aeon
0
0.044011892 B
0.09786788
LO
o
0.6534
aeon
1
0.000000000 B
oxyind
R
0.000000000 B
altcat
L
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-16
-------
CH4 Start VS. Run (HR505 VS. FTP_bn3) 17
15:10 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
173
107
4.0190751
1.3760135
3.2000000
10. 0000000
hclimit
166
114
0.6425904
0.1919215
0.4100000
0. 8000000
disp
280
0
4.5024465
1.6654567
1.6715831
8.3906916
testwght
280
0
5085.16
1654.35
2581.00
9400.00
road hp
280
0
14.3328571
5.9739391
6.1000000
24.0000000
odometer
276
4
47460.16
36352.18
4829.00
169335.00
Pi
280
0
0.3382745
0.000335164
0.3379447
0.3386139
p2
280
0
0.0474771
0.000047041
0.0474308
0. 0475248
p3
280
0
0
0
0
0
p4
280
0
0
0
0
0
avgtotpower
280
0
11.7408472
4.1822879
5.7576284
20.0322887
temp
280
0
80.8060714
7.4025327
62.7000000
101.2000000
rvp
280
0
8.9507143
0.0863405
8.8000000
9.0000000
mpg
280
0
18.4934525
6.0438853
0.8866933
37.6300000
co2
279
1
518.0267706
145.9504413
233.4230000
822.7690000
gco2
280
0
1981.81
2101.06
838.2284770
35910.27
gco2 s
280
0
3.9284560
4.1687229
1.6631517
71.2505440
ch4
280
0
0.0590750
0.0602929
0.0010000
0.3810000
gch4
280
0
0.2121352
0.2165090
0.0035909
1.3681816
mgch4 s
280
0
0.4205157
0.4292036
0. 0071106
2.7146460
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-17
-------
CH4 Start VS. Run (HR505 VS. FTP_bn3) 18
15:10 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
280
100.00
280
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
123
43. 93
123
43. 93
Fed LDT1
6
2.14
129
46. 07
Fed LDT2
70
25. 00
199
71. 07
Fed LDT3
12
4.29
211
75.36
Fed LDT4
2
0.71
213
76. 07
Fed LDV
67
23. 93
280
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
12
4.29
12
4.29
1993
37
13.21
49
17.50
1995
77
27.50
126
o
o
LO
1996
56
20. 00
182
o
o
LO
1997
83
29. 64
265
94. 64
1998
15
5.36
280
100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-18
-------
CH4 Start VS. Run (HR505 VS. FTP_bn3) 19
15:10 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
PFI
254
90.71
254
90.71
TBI
26
9.29
280
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
232
82. 86
232
82. 86
OX3W
8
2.86
240
85.71
OXID
40
14.29
280
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
31
11. 07
31
11. 07
6
132
47.14
163
58.21
8
105
37.50
268
95.71
10
12
4.29
280
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
2
0.71
2
0.71
CHARGED
7
2.50
9
3.21
NATURAL
271
96.79
280
100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-19
-------
CH4 Start VS. Run (HR505 VS. FTP_bn3) 20
15:10 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
tran_type Frequency Percent Frequency Percent
AUTO 259 92.50 259 92.50
MANUAL 21 7.50 280 100.00
Cumulative Cumulative
repairs Frequency Percent Frequency Percent
s
280
100.00
280
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
107
173
38.21
61.79
107
280
38.21
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
114 40.71 114 40.71
0 166 59.29 280 100.00
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
F505 142 50.71 142 50.71
FTP_bn3 138 49.29 280 100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-20
-------
CH4 Start
VS. Run (HR505 VS. FTP bn3)
15:10 Friday
The FREQ Procedure
Cumulative
Cumulative
start run
Frequency Percent
Frequency
Percent
R
142
50.71
142
50.71
S
138
49.29
280
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
LT60
138
49.29
138
49.29
None
142
50.71
280
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0
233
83.21
233
83.21
1
47
16.79
280
100.00
Cumulative
Cumulative
tempcat
Frequency
Percent
Frequency
Percent
15
2
0.71
2
0.71
25
229
81.79
231
82.50
35
49
17.50
280
100.00
21
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-21
-------
CH4 Start VS. Run (HR505 VS. FTP bn3)
The FREQ Procedure
altcat
L
Frequency
280
Percent
100.00
Cumulative
Frequency
280
22
15:10 Friday, December 7, 2001
Cumulative
Percent
100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
280
100.00
280
100.00
oxygenate Frequency
None 280
Cumulative Cumulative
Percent Frequency Percent
100.00
280
100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R
280
100.00
280
100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-22
-------
CH4 Soak Time (FTP_bnl VS. FTP_bn3)
The GLM Procedure
Class Level Information
23
15:10 Friday, December 7, 2001
Class Levels Values
msid_cause 57 1B3EJ46X0TN27942
~ 1B7GL23X6VS207 65
1FALP52U5TG19515
1FBJS31H4MHA6371
1FTEF15N3TLA6204
1G1JC124 6TM13549
1G4CU52155H63470
1GCGC24K6PE21849
1GMDX0 6E4VD13010
1GNGK2 6JXVJ3 67 62
1P4GP44R0TB4918 6
2B5WB35Z0RK54427
2GCGC29K2P110 667
3B7KF23W0SM16419
4T1CG12K8TU71331
sched_id 2 FTP_bnl FTP_bn3
aeon 2 0 1
oxyind 1 R
altcat 1 L
1B4GP44R7VB402 60
1B7GL23X8TS64978
1FALP53S2VG11918
1FMCU22X2TUC9731
1FTEF15Y7TLB9434
1G2NE52T3VM51809
1G4NJ52MXTC43690
1GCGC3 4 J 6VE13736
1GNDT13W07227189
1MELM50U7TG64 654
1P4GP44R5VB43200
2CNBE18 69T693495
2P4GH2536R238607
3B7KF23Z8VG82444
1B4GP54L1TB47731
1B7HC1643T5 65407
1FALP66L6SK15994
1FMDA11U9VZA2 50 6
1FTHE24H2PHA220 6
1G2WJ52M1TF2048 6
1G82G5281S215558
1GCGK24K6SE11319
1GNDT13W95224989
1MELM53S6VG610 64
2B4GP4431TR82162
2G4WB52L9S145158
2P4GH2537SR19053
3B7KF23ZXVM55883
1B7GL23X6V5207 65
1FALP1391VW1758 6
1FASP15J1SW617 65
1FTEF1547TLB9434
1FTJE34Y8SHB9014
1G4AG55M85 650 694
1G8ZF5284SZ30318
1GK0M19W9VB52228
1GNFK16R9VJ38 687
1N6SD11S2SC45944
2B4GP4534TR51823
2G4WS52M1V141616
2P4GP2437VR34032
4T1BF22K2VU90051
Number of observations 27 6
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-23
-------
Dependent Variable: mgch4_s
Source
Model
Error
Corrected Total
CH4 Soak Time (FTP bnl VS. FTP bn3)
The GLM Procedure
24
15:10 Friday, December 7, 2001
Sum of
DF Squares
61 71.43461310
214 10.43537632
275 81.86998942
Mean Square
1.17105923
0.04876344
F Value
24. 02
Pr > F
<.0001
R-Square
0.872537
Coeff Var
35.98946
Root MSE
0.220824
mgch4_s Mean
0.613581
Source
msid_cause
sched_id
avgtotpower
rvp
temp
aeon
oxyind
altcat
DF
56
1
1
1
1
1
0
0
Type I SS
63.26597498
6.77711346
1.37236668
0. 01769653
0. 00042212
0.00103934
0.00000000
0.00000000
Mean Square
1.12974955
6. 77711346
1.37236668
0. 01769653
0. 00042212
0.00103934
F Value
23.17
138.98
28.14
0.36
0. 01
0. 02
Pr > F
<.0001
<.0001
<.0001
0.5475
0.9260
0.8841
Source
msid_cause
sched id
DF Type II SS
56 29.30446136
1 6.71061940
Mean Square
0.52329395
6.71061940
F Value
10.73
137.62
Pr > F
<.0001
<.0001
/camwheels/cam/epaco2ch4/oplch4 SR.sas
D3-24
-------
CH4 Soak Time (FTP_bnl VS. FTP_bn3) 25
15:10 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Source
DF
Type II SS
Mean Square
F
Value
Pr
> F
avgtotpower
1
1.26208754
1.26208754
K)
Cn
CO
CO
<.
0001
rvp
1
0. 01218045
0. 01218045
0.25
0.
6177
temp
1
0.00138185
0.00138185
0. 03
0.
8665
aeon
1
0.00103934
0.00103934
0. 02
0.
8841
oxyind
0
0.00000000
altcat
0
0.00000000
Standard
Parameter
Estimate
Error
t
Value
Pr
> 111
Intercept
0.503993848 B
2.67736761
0.19
0. 8509
msid cause
1B3EJ4 6X0TN27942
0.199190549 B
0.23365176
0. 85
0.3949
msid cause
1B4GP44R7VB402 60
-0.019378074 B
0.19387802
1
o
1—1
o
0.9205
msid cause
1B4GP54L1TB47731
-0.006219013 B
0.18593033
1
o
o
CO
0.9733
msid cause
1B7GL23X6V5207 65
0.137639378 B
0.18546038
0.74
0. 4588
msid cause
1B7GL23X6VS207 65
0.118028438 B
0.23059519
0.51
0.6093
msid cause
1B7GL23X8TS64978
0.178001565 B
0.18516050
0. 96
0.3375
msid cause
1B7HC1643T5 65407
0.152868787 B
0.20143590
0.76
0.4488
msid cause
1FALP1391VW1758 6
0.045837760 B
0.22999936
0.20
0. 8422
msid cause
1FALP52U5TG19515
0.140312968 B
0.22874239
0. 61
0.5403
msid cause
1FALP53S2VG11918
0.172997927 B
0.18326313
0. 94
0.3462
msid cause
1FALP66L6SK15994
0.087337645 B
0.23012744
0.38
0.7047
msid cause
1FASP15J1SW617 65
0.192746921 B
0.19486711
0. 99
0.3237
msid cause
1FBJS31H4MHA6371
0.111082647 B
0.22782339
0. 49
0.6263
msid cause
1FMCU22X2TUC9731
-0.095749556 B
0.23150018
1
o
1—1
0.6796
msid cause
1FMDA11U9VZA2 50 6
-0.002482666 B
0.19479541
1
O
o
1—1
0.9898
msid cause
1FTEF1547TLB9434
-0.063288090 B
0.23277115
-0.27
0.7860
msid cause
1FTEF15N3TLA6204
0.040068473 B
0.19866595
0.20
0.8404
/camwheels/cam/epaco2ch4/oplch4_SR. sas
D3-25
-------
CH4 Soak Time (FTP_bnl VS. FTP_bn3) 2 6
15:10 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1FTEF15Y7TLB9434
0.036664696 B
0.22538131
0.16
0. 8709
msid
cause
1FTHE24H2PHA220 6
0.602881214 B
0.21770724
2.77
0.0061
msid
cause
1FTJE34Y8SHB9014
1.410845404 B
0.20272872
6.96
<.0001
msid
cause
1G1JC124 6TM13549
0.184093030 B
0.22981286
0. 80
0. 4240
msid
cause
1G2NE52T3VM51809
0.028424636 B
0.22845993
0.12
0.9011
msid
cause
1G2WJ52M1TF2048 6
0.116762987 B
0.22836417
0.51
0.6097
msid
cause
1G4AG55M85 650 694
0.080794781 B
0.18295950
0. 44
0.6592
msid
cause
1G4CU52155H63470
0.046602156 B
0.23053291
0.20
0.8400
msid
cause
1G4NJ52MXTC43690
0.190392234 B
0.23026721
0. 83
0.4093
msid
cause
1G82G5281S215558
0.212071514 B
0.19553636
1. 08
0.2793
msid
cause
1G8ZF5284SZ30318
0.218182191 B
0.17905690
1.22
0.2244
msid
cause
1GCGC24K6PE21849
0.317829217 B
0.23309534
1.36
0.1742
msid
cause
1GCGC3 4 J 6VE13736
-0.005664100 B
0.21986497
1
o
o
CO
0.9795
msid
cause
1GCGK24K6SE11319
0.372889631 B
0.22609610
1. 65
0.1006
msid
cause
1GK0M19W9VB52228
-0.053313344 B
0.24026766
1
o
K)
K)
0.8246
msid
cause
1GMDX0 6E4VD13010
-0.027167606 B
0.18360610
1
o
1—1
en
0. 8825
msid
cause
1GNDT13W07227189
-0.127465716 B
0.18864342
CO
o
1
0.5000
msid
cause
1GNDT13W95224989
-0.029289676 B
0.23290608
1
o
1—1
CO
0.9000
msid
cause
1GNFK16R9VJ38 687
-0.311906654 B
0.24525797
-1.27
0.2048
msid
cause
1GNGK2 6JXVJ3 67 62
-0.251751298 B
0.22826451
-1.10
0.2713
msid
cause
1MELM50U7TG64 654
0.135856284 B
0.22842546
0.59
0.5526
msid
cause
1MELM53S6VG610 64
0.119868266 B
0.23019895
0.52
0.6031
msid
cause
1N6SD11S2SC45944
0.080213070 B
0.22872378
0.35
0.7262
msid
cause
1P4GP44R0TB4918 6
0.011266294 B
0.23007369
LO
o
o
0.9610
msid
cause
1P4GP44R5VB43200
0.015731126 B
0.22883185
0. 07
0.9453
msid
cause
2B4GP4431TR82162
0.028257417 B
0.18327431
0.15
0.8776
msid
cause
2B4GP4534TR51823
0.046496217 B
0.18366967
0.25
0.8004
msid
cause
2B5WB35Z0RK54427
0.098723317 B
0.21793828
0. 45
0.6510
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-26
-------
CH4 Soak Time (FTP bnl VS. FTP bn3)
27
15:10 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value Pr > |t|
msid cause
2CNBE18 69T693495
-0.040341453 B
0.22940442
1
o
1—1
CO
0.8606
msid cause
2G4WB52L9S145158
0.055633474 B
0.18314917
0.30
0.7616
msid cause
2G4WS52M1V141616
0.129015396 B
0.22976372
0.56
0.5750
msid cause
2GCGC29K2P110 667
-0.037516105 B
0.21788935
-0.17
0.8635
msid cause
2P4GH2536R238607
0.022304175 B
0.22834935
o
1—1
o
0.9223
msid cause
2P4GH2537SR19053
0.036862759 B
0.23036188
0.16
0.8730
msid cause
2P4GP2437VR34032
0.004844503 B
0.22983077
O
O
K)
0.9832
msid cause
3B7KF23W0SM16419
0.203186031 B
0.23980094
LO
CO
O
0.3978
msid cause
3B7KF23Z8VG82444
-0.353267463 B
0.22192768
1
1—1
Cn
0.1129
msid cause
3B7KF23ZXVM55883
-0.073614617 B
0.24102157
1
o
CO
1—1
0.7603
msid cause
4T1BF22K2VU90051
-0.116868837 B
0.17703218
O
1
0.5099
msid cause
4T1CG12K8TU71331
0.000000000 B
sched id
FTP bnl
0.313913877 B
0. 02675940
11.73
<.0001
sched id
FTP bn3
0.000000000 B
avgtotpower
0. 079527805
0. 01563225
5. 09
<.0001
rvp
-0.138110379
0.27633883
o
LO
o
1
0.6177
temp
0. 001327674
0. 00788692
0.17
0.8665
aeon
0
0.022115666 B
0.15148445
0.15
0.8841
aeon
1
0.000000000 B
oxyind
R
0.000000000 B
altcat
L
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-27
-------
CH4 Soak Time (FTP_bnl VS. FTP_bn3) 28
15:10 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
170
106
4.0305882
1.3853864
3.2000000
10. 0000000
hclimit
164
112
0.6430488
0.1918377
0.4100000
0. 8000000
disp
276
0
4.5128943
1.6638393
1.6715831
8.3906916
testwght
276
0
5104.27
1672.26
2581.00
9400.00
road hp
276
0
14.3659420
5.9740834
6.1000000
24.0000000
odometer
276
0
47017.21
35653.07
4829.00
169311.00
Pi
276
0
0.3386139
0
0.3386139
0.3386139
p2
276
0
0. 0475248
0
0. 0475248
0. 0475248
p3
276
0
0
0
0
0
p4
276
0
0
0
0
0
avgtotpower
276
0
11.7954302
4.2012453
5.7759930
20.0322887
temp
276
0
79.9858696
7.2639971
62.7000000
99.2000000
rvp
276
0
8.9507246
0.0863367
8.8000000
9.0000000
mpg
276
0
17.2331974
6. 0147012
0.8857765
37.6300000
co2
274
2
548.2534161
157.0087316
233.4230000
909.0030000
gco2
276
0
2214.75
2938.24
838.2284770
35910.27
gco2 s
276
0
4.3943373
5. 8298326
1.6631517
71.2505440
ch4
276
0
0. 0861159
0.0765787
0.0040000
0.4640000
gch4
276
0
0.3092447
0.2749961
0.0143641
1.6662369
mgch4 s
276
0
0.6135808
0.5456272
0. 0285002
3. 3060256
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-28
-------
CH4 Soak Time (FTP_bnl VS. FTP_bn3) 29
15:10 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
276
100.00
276
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
122
44.20
122
44.20
Fed LDT1
6
2.17
128
46. 38
Fed LDT2
68
24. 64
196
71. 01
Fed LDT3
12
4.35
208
75.36
Fed LDT4
2
0.72
210
76.09
Fed LDV
66
23. 91
276
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
12
4.35
12
4.35
1993
36
13. 04
48
17.39
1995
76
27.54
124
44. 93
1996
56
20.29
180
65.22
1997
82
29.71
2 62
94. 93
1998
14
5. 07
276
100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-29
-------
CH4 Soak Time (FTP_bnl VS. FTP_bn3) 30
15:10 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
PFI
250
90.58
250
90.58
TBI
26
9. 42
276
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
228
82. 61
228
82. 61
OX3W
8
2. 90
236
85.51
OXID
40
14. 49
276
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
30
10. 87
30
10. 87
6
130
47.10
160
57. 97
8
104
37. 68
264
95. 65
10
12
4.35
276
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
2
0.72
2
0.72
CHARGED
6
2.17
8
2. 90
NATURAL
268
97.10
276
100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-30
-------
CH4 Soak Time (FTP_bnl VS. FTP_bn3)
The FREQ Procedure
Cumulative
tran_type Frequency Percent Frequency
AUTO
MANUAL
31
15:10 Friday, December 7, 2001
Cumulative
Percent
256
20
92.75
7.25
256
276
92.75
100.00
repairs Frequency
Cumulative Cumulative
Percent Frequency Percent
s
276
100.00
276
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
106
170
38. 41
61.59
106
276
38. 41
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
112
164
40.58
59. 42
112
276
40.58
100.00
sched id
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
FTP_bnl
FTP bn3
138
138
50. 00
50. 00
138
276
50. 00
100.00
/camwheels/cam/epaco2ch4/oplch4 SR.sas
D3-31
-------
CH4 Soak Time (FTP_bnl VS. FTP_bn3) 32
15:10 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
276
100.00
276
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
138
138
o o
o o
o o
LO LO
138
276
50. 00
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
232
44
84. 06
15. 94
232
276
84. 06
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
15
25
35
3
229
44
1. 09
82. 97
15. 94
3
232
276
1. 09
84. 06
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
L 276 100.00 276 100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-32
-------
CH4 Soak Time (FTP_bnl VS. FTP_bn3) 33
15:10 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
9 276 100.00 276 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 276 100.00 276 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 276 100.00 276 100.00
/camwheels/cam/epaco2ch4/oplch4_SR.sas
D3-33
-------
Appendix D4
Unified Results for mg CH4/s for Gasoline Vehicles
-------
1
12:03 Monday, December 17, 2001
All cycles, All operating conditions
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 33 ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5 CACYC6 CACYC7
F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-F FWY-G FWY-HI HWFET LA92 LSP1
LSP2 LSP3 NYCC RAMP SC03 SCC12 SCC36 ST01 UNCFTP US06
fedcat 6 Fed_HDV Fed_LDTl Fed_LDT2 Fed_LDT3 Fed_LDT4 Fed_LDV
model_yr 25 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1990 1991 1992 1993 1994 1995 1996 1997 1998
colimit 12 3.2 3.4 4.4 5 6.7 7 10 14.4 15 18 20 39
hclimit 8 0.25 0.41 0.8 1.18 1.5 1.7 2 3.4
fi_type 3 NOTFI PFI TBI
cat_type 4 3WAY NONE OX3W OXID
aspirated 2 CHARGED NATURAL
tran_type 2 AUTO MANUAL
repairs 2 A B
cohigh 2 0 1
hchigh 2 0 1
cylinder 5 3 4 5 6 8
/camwheels/cam/epaco2ch4/vclch4gas.sas
D4-1
-------
All cycles, All operating conditions 2
12:03 Monday, December 17, 2001
The GLM Procedure
Number of observations 53385
NOTE: Due to missing values, only 32536 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-2
-------
All cycles, All operating conditions 3
12:03 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
86
6179
.57722
71.85555
209.01
<.0001
Error
32449
11155
.64125
0.34379
Corrected Total
32535
17335
.21847
R-Square
Coef f
Var
Root
MSE mgch4 s
Mean
0.356475
109.
3230
0.586336 0.536334
Source
DF
Type I SS
Mean Square
F Value
Pr > F
sched id
32
1380.
915301
43.153603
125.52
<.0001
cohigh
1
2372.
198261
2372.198261
6900.14
<.0001
hchigh
1
680.
509789
680.509789
1979.43
<.0001
cat type
3
1018.
005032
339.335011
987.04
<.0001
model yr
24
307.
255822
12. 802326
37.24
<.0001
fi type
2
46.
232414
23.116207
67.24
<.0001
avgtotpower
1
201.
798639
201.798639
586.98
<.0001
colimit
9
145.
414097
16.157122
47. 00
<.0001
odometer
1
6.
703737
6.703737
19.50
<.0001
tran type
1
1.
077763
1.077763
3.13
0. 0766
repairs
1
2.
710922
2.710922
7. 89
0. 0050
disp
1
15.
216606
15.216606
44.26
<.0001
fedcat
5
0.
9 69 62 0
0.193924
0.56
0.7277
aspirated
1
0.
531845
0.531845
1.55
0.2136
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-3
-------
All cycles, All operating conditions 4
12:03 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Source
DF
Type I SS
Mean Square
F Value
Pr > F
zippy
1
0. 035192
0.035192
0.10
0.7490
hclimit
2
0. 002176
0.001088
0. 00
0.9968
Source
DF
Type II SS
Mean Square
F Value
Pr > F
sched id
32
806.5876816
25.2058650
73. 32
<.0001
cohigh
1
464.0676098
464.0676098
1349.86
<.0001
hchigh
1
316.3186527
316.3186527
920. 09
<.0001
cat type
3
146.8586725
48. 9528908
142.39
<.0001
model yr
22
119.1440108
5. 4156369
15.75
<.0001
fi type
2
38.7196520
19.3598260
56. 31
<.0001
avgtotpower
1
11.4962828
11. 4962828
33. 44
<.0001
colimit
6
7.6009492
1.2668249
3. 68
0. 0012
odometer
1
5.8049166
5. 8049166
16.89
<.0001
tran type
1
5.4129157
5. 4129157
15.74
<.0001
repairs
1
2.7134209
2.7134209
7. 89
0. 0050
disp
1
1.6759500
1.6759500
4. 87
0. 0273
fedcat
5
0.8181122
0.1636224
0. 48
0.7945
aspirated
1
0.5483652
0.5483652
1. 60
0.2066
zippy
1
0.0347577
0.0347577
0.10
0.7505
hclimit
2
0.0021760
0. 0010880
0. 00
0.9968
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
sched id
ART-EF
1.331966691 B
-0.325113340 B
0.16455139
0.13226382
8. 09
-2.46
<.0001
0.0140
/camwheels/cam/epaco2ch4/vclch4gas.sas
D4-4
-------
All cycles, All operating conditions 5
12:03 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
sched id
CAART1
-0.408002785 B
0.11935338
1
CO
d^
K)
0. 0006
sched id
CAART2
-0.388024894 B
0.11037146
-3. 52
0.0004
sched id
CAART3
-0.122316120 B
0.10639004
-1.15
0.2503
sched id
CACYC1
-0.446091060 B
0.10623709
1
d^
K)
O
<.0001
sched id
CACYC2
-0.121299421 B
0.09921476
-1.22
0.2215
sched id
CACYC3
-0.283464541 B
0.10496839
-2.70
0.0069
sched id
CACYC4
-0.306244109 B
0.11041651
-2.77
0. 0055
sched id
CACYC5
-0.461388040 B
0.11610613
-3. 97
<.0001
sched id
CACYC6
-0.264818193 B
0.11970544
-2.21
0. 0270
sched id
CACYC7
-0.252328909 B
0.12596152
-2. 00
0.0452
sched id
F505
-0.334363077 B
0.09356837
-3. 57
0.0004
sched id
FTP bnl
-0.047498792 B
0.07624115
-0. 62
0.5333
sched id
FTP bn2
-0.415755202 B
0.08913497
-4. 66
<.0001
sched id
FTP bn3
-0.369642942 B
0.07624153
-4. 85
<.0001
sched id
FWY-AC
-0.367100070 B
0.10806758
1
CO
d^
O
0. 0007
sched id
FWY-D
-0.769253957 B
0.35376533
-2.17
0. 0297
sched id
FWY-F
-0.382516239 B
0.12535545
1
CO
o
en
0. 0023
sched id
FWY-G
-0.307005343 B
0.36549151
CO
o
l
0.4009
sched id
FWY-HI
-0.743560275 B
0.10989795
-6.11
<.0001
sched id
HWFET
-0.466460011 B
0.10627321
-4.39
<.0001
sched id
LA92
-0.424149364 B
0.11942950
-3. 55
0.0004
sched id
LSP1
-0.318677978 B
0.10487441
1
CO
o
d^
0.0024
sched id
LSP2
-0.246281215 B
0.10360076
1
K)
CO
CO
0. 0174
sched id
LSP3
-0.110504138 B
0.10302517
-1. 07
0.2835
sched id
NYCC
-0.235357156 B
0.11357962
-2. 07
0.0383
sched id
RAMP
-0.619235467 B
0.35069330
-1.77
0.0774
sched id
SC03
-0.485060703 B
0.27350634
-1.77
0.0762
sched id
SCC12
-0.430487935 B
0.09368225
o
1
<.0001
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-5
-------
All cycles, All operating conditions 6
12:03 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
sched id
SCC36
-0.530448774 B
0.07184318
-7.38
<.0001
sched id
ST01
-0.177945319 B
0.10399375
-1.71
0. 0871
sched id
UNCFTP
-0.329811312 B
0.10058508
-3.28
0.0010
sched id
USO 6
0.000000000 B
cohigh
0
-0.413498052 B
0.01125458
-36.74
<.0001
cohigh
1
0.000000000 B
hchigh
0
-0.328895802 B
0.01084283
-30.33
<.0001
hchigh
1
0.000000000 B
cat type
3WAY
-0.085787249 B
0.01708505
1
cn
o
K)
<.0001
cat type
NONE
-0.025913216 B
0.07859887
-0.33
0.7416
cat type
OX3W
0.101612963 B
0.01640825
6.19
<.0001
cat type
OXID
0.000000000 B
model yr
1974
1.134796221 B
0.20776483
5.46
<.0001
model yr
1975
0.628812411 B
0.18965846
3. 32
0.0009
model yr
1976
1.586919413 B
0.18364156
8. 64
<.0001
model yr
1977
0.458706050 B
0.15640326
2. 93
0.0034
model yr
1978
0.477200733 B
0.15461745
3.09
0.0020
model yr
1979
0.588076086 B
0.14477214
4.06
<.0001
model yr
1980
0.365398812 B
0. 08289130
4. 41
<.0001
model yr
1981
0.324566203 B
0. 07766510
4.18
<.0001
model yr
1982
0.256670905 B
0. 07912776
3.24
0. 0012
model yr
1983
0.148710707 B
0. 07697442
1—1
CO
0. 0534
model yr
1984
0.223031837 B
0. 07752421
2. 88
0.0040
model yr
1985
0.109793896 B
0. 07707526
1. 42
0.1543
model yr
1986
0.093915702 B
0.07694570
1.22
0.2223
model yr
1987
0.110523615 B
0. 07701211
1. 44
0.1513
model yr
1988
0.151883697 B
0.07695751
1. 97
0.0484
model yr
1989
0.163471217 B
0.07705569
2.12
0.0339
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-6
-------
All cycles, All operating conditions 7
12:03 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
model yr
1990
0.153938232 B
0.07696993
2. 00
0. 0455
model yr
1991
0.173629125 B
0. 07772893
2.23
0. 0255
model yr
1992
0.169725776 B
0. 07903450
2.15
0.0318
model yr
1993
0.093538610 B
0. 08207615
1.14
0.2544
model yr
1994
0.080823433 B
0.08181109
0. 99
0.3232
model yr
1995
0.087281922 B
0.08798827
0. 99
0.3212
model yr
1996
0.106067435 B
0.08792521
1.21
0.2277
model yr
1997
0.085702651 B
0.08897685
0. 96
0.3355
model yr
1998
0.000000000 B
fi type
NOTFI
0.102570393 B
0.01156451
8. 87
<.0001
fi type
PFI
-0.025950851 B
0.00944416
-2.75
0.0060
fi type
TBI
0.000000000 B
avgtotpower
0. 026475405
0.00457837
5.78
<.0001
colimit
3.2
-0.377122110 B
0.16077231
1
K)
CO
Cn
0. 0190
colimit
3.4
-0.376995555 B
0.09836573
1
CO
CO
CO
0.0001
colimit
4.4
-0.348041865 B
0.09445072
-3. 68
0.0002
colimit
5
-0.352963414 B
0.26359660
1
1—1
CO
0.1806
colimit
6.7
-0.464111857 B
0.13756441
-3.31
0.0007
colimit
7
-0.430314227 B
0.09830443
-4.38
<.0001
colimit
10
-0.136154034 B
0.03015963
-4.51
<.0001
colimit
14. 4
0.068615093 B
0.28754953
0.24
0.8114
colimit
15
-0.352450499 B
0.15905851
-2.22
0.0267
colimit
18
0.000000000 B
colimit
20
0.000000000 B
colimit
39
0.000000000 B
odometer
0. 000000479
0.00000012
4.11
<.0001
tran type
AUTO
-0.033471260 B
0.00843535
-3. 97
<.0001
tran type
MANUAL
0.000000000 B
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-7
-------
All cycles, All operating conditions 8
12:03 Monday, December 17, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
repairs
A
0.032860110 B
0
01169653
2
81
0
0050
repairs
B
0.000000000 B
disp
0.029060309
0
01316183
2
21
0
0273
fedcat
Fed HDV
-0.144689036 B
0
26324171
-0
55
0
5826
fedcat
Fed LDT1
-0.023777108 B
0
09897659
-0
24
0
8102
fedcat
Fed LDT2
-0.048420246 B
0
13244472
-0
37
0
7147
fedcat
Fed LDT3
0.010981528 B
0
10245311
0
11
0
9146
fedcat
Fed LDT4
-0.292404816 B
0
32028206
-0
91
0
3613
fedcat
Fed LDV
0.000000000 B
aspirated
CHARGED
0.024577711 B
0
01946046
1
26
0
2066
aspirated
NATURAL
0.000000000 B
zippy
0.018642631
0
05863116
0
32
0
7505
hclimit
0.25
-0.012218873 B
0
15618895
-0
08
0
9376
hclimit
0. 41
-0.007380908 B
0
13075351
-0
06
0
9550
hclimit
CO
o
0.000000000 B
hclimit
1—1
1—1
CO
0.000000000 B
hclimit
1.5
0.000000000 B
hclimit
1.7
0.000000000 B
hclimit
2
0.000000000 B
hclimit
3.4
0.000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclch4gas.sas
D4-8
-------
All cycles, All operating conditions 9
12:03 Monday, December 17, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
32536
0
4.9259313
3.2830790
3.2000000
39.0000000
hclimit
32536
0
0.4990847
0.2689843
0.2500000
3.4000000
disp
32536
0
2.7811062
1. 0712981
0.9996722
7.5385120
testwght
32536
0
3224.18
584.8924208
2000.00
8800.00
road hp
32536
0
8.5615441
2. 4264641
3.2000000
23.4000000
odometer
32536
0
56419.69
31823.80
343.0000000
241829.00
Pi
32536
0
0.3508873
0. 0457429
0
0. 4411765
p2
32536
0
0. 0315921
0.0257731
0
0.2081967
p3
32536
0
0.000330131
0. 0031406
0
0. 0415973
p4
32536
0
0.000101074
0.0011083
0
0.0149750
avgtotpower
32536
0
5.9994170
2.9686101
0.2568667
54.2476938
temp
32536
0
76.3683120
4.2436869
47.0000000
116.0000000
rvp
32536
0
9.4171994
1.1206260
6.3000000
12.2000000
mpg
32536
0
22.5139355
6.2601034
0.8857765
55.7800000
co2
32533
3
419.7105710
193.0189478
93.1000000
3888.40
gco2
32536
0
1434.24
682.4757185
205.5277778
38594.16
gco2 s
32536
0
2.3340029
1.0118134
0.3419763
71.2505440
ch4
32536
0
0.0959765
0.1778272
0.0010000
8.7500000
gch4
32536
0
0.3181912
0.4357521
0.0013872
19.1427067
mgch4 s
32536
0
0.5363337
0.7299435
0.0032167
26.5764556
/camwheels/cam/epaco2ch4/vclch4gas.sas
D4-9
-------
All cycles, All operating conditions 10
12:03 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
32536
100.00
32536
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
85
0.26
85
0.26
Fed LDT1
2915
8. 96
3000
9.22
Fed LDT2
297
0. 91
3297
1—1
o
1—1
CO
Fed LDT3
478
1. 47
3775
11. 60
Fed LDT4
13
0. 04
3788
11. 64
Fed LDV
28748
88.36
32536
100.00
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-10
-------
l_yr
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
All cycles, All operating conditions 11
12:03 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
Frequency Percent Frequency Percent
17
LO
O
o
17
LO
O
o
12
0. 04
29
0. 09
30
0. 09
59
0.18
153
0. 47
212
0. 65
197
0. 61
409
1.26
330
1. 01
739
2.27
625
1. 92
1364
4.19
4551
13. 99
5915
1—1
CO
1—1
CO
1483
4.56
7398
22.74
2802
8. 61
10200
31.35
1888
5. 80
12088
37.15
3003
9.23
15091
46. 38
3133
9. 63
18224
56.01
3010
9.25
21234
65.26
3143
9.66
24377
74. 92
2292
7. 04
2 6669
81. 97
2263
6.96
28932
CO
CO
K)
1194
3. 67
30126
92.59
736
2.26
30862
94. 85
354
1. 09
31216
95. 94
376
1.16
31592
97.10
232
0.71
31824
97. 81
324
1. 00
32148
98. 81
327
1. 01
32475
99. 81
61
0.19
32536
100.00
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-11
-------
All cycles, All operating conditions 12
12:03 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
NOTFI
11081
34. 06
11081
34. 06
PFI
13255
40.74
24336
74. 80
TBI
8200
25.20
32536
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
18869
57. 99
18869
57. 99
NONE
81
0.25
18950
58.24
OX3W
10162
31.23
29112
89.48
OXID
3424
10.52
32536
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
3
29
0. 09
29
0. 09
4
18832
57. 88
18861
57. 97
5
54
0.17
18915
cn
CO
I—1
6
10096
31. 03
29011
89.17
8
3525
10. 83
32536
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
CHARGED
1090
3. 35
1090
3. 35
NATURAL
31446
96. 65
32536
100.00
/camwheels/cam/epaco2ch4/vclch4gas.sas
D4-
12
-------
All cycles, All operating conditions 13
12:03 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
tran_type Frequency Percent Frequency Percent
AUTO 22698 69.76 22698 69.76
MANUAL 9838 30.24 32536 100.00
Cumulative Cumulative
repairs Frequency Percent Frequency Percent
A
3038
CO
3038
CO
B
29498
90.66
32536
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
0
26722
CO
K)
1—1
CO
26722
CO
K)
1—1
CO
1
5814
17. 87
32536
100.00
Cumulative
Cumulative
hchigh
Frequency
Percent
Frequency
Percent
0
25424
78.14
25424
78.14
1
7112
21. 86
32536
100.00
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-13
-------
All cycles, All operating conditions 14
12:03 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
ART-EF
37
0.11
37
0.11
CAART1
47
0.14
84
0.26
CAART2
50
0.15
134
0. 41
CAART3
50
0.15
184
0.57
CACYC1
39
0.12
223
0. 69
CACYC2
49
0.15
272
0. 84
CACYC3
47
0.14
319
0. 98
CACYC4
48
0.15
367
1.13
CACYC5
45
0.14
412
1.27
CACYC6
50
0.15
4 62
1. 42
CACYC7
49
0.15
511
1.57
F505
119
0.37
630
1. 94
FTP bnl
9213
28.32
9843
30.25
FTP bn2
9168
28.18
19011
58. 43
FTP bn3
9210
28.31
28221
86.74
FWY-AC
37
0.11
28258
LO
CO
CO
FWY-D
3
0. 01
28261
86.86
FWY-F
38
0.12
28299
86. 98
FWY-G
3
0. 01
28302
86. 99
FWY-HI
37
0.11
28339
87.10
HWFET
50
0.15
28389
87.25
LA92
38
0.12
28427
87.37
LSP1
515
1.58
28942
CO
CO
cn
LSP2
517
1.59
29459
90.54
LSP3
517
1.59
29976
92.13
NYCC
90
0.28
30066
92. 41
RAMP
3
0. 01
30069
92. 42
SC03
5
0. 02
30074
92. 43
SCC12
1082
3. 33
31156
95.76
SCC36
1030
3.17
32186
98. 92
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-14
-------
All cycles, All operating conditions 15
12:03 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
ST01
80
0.25
32266
99.17
UNCFTP
102
0.31
32368
d^
CO
USO 6
168
0.52
32536
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
32077
98.59
32077
98.59
R
79
0.24
32156
CO
CO
CO
S
380
1.17
32536
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
14030
43.12
14030
d^
CO
1—1
K)
GE60
9256
K)
CO
d^
Cn
23286
71.57
LT60
9250
K)
CO
d^
CO
32536
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0
32347
99. 42
32347
99. 42
1
189
0.58
32536
100.00
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-15
-------
All cycles, All operating conditions 16
12:03 Monday, December 17, 2001
The FREQ Procedure
Cumulative Cumulative
tempcat Frequency Percent Frequency Percent
5
3
o
o
1—1
3
o
o
1—1
25
31678
97.36
31681
97.37
35
532
1. 64
32213
99. 01
45
323
0. 99
32536
100.00
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
102
0.31
102
0.31
L
32434
99. 69
32536
100.00
Cumulative
Cumulative
rvpind
Frequency
Percent
Frequency
Percent
6
146
LO
o
146
LO
o
7
501
1.54
647
1. 99
8
556
1.71
1203
3.70
9
24963
76. 72
26166
CO
o
K)
10
23
0. 07
26189
80. 49
11
1017
3.13
27206
83. 62
12
5330
16. 38
32536
100.00
/camwheels/cam/epaco2ch4/vclch4gas. sas
D4-16
-------
All cycles, All operating conditions
17
12:03 Monday, December 17, 2001
The FREQ Procedure
oxygenate
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
EtOH
MTBE
MeOH_EtOH
MeOH_TBA
None
2638
3214
68
6
26610
8.11
9.88
0.21
0. 02
81.79
2638
5852
5920
5926
32536
8.11
17. 99
18.20
18.21
100.00
oxyind Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
O
R
5926
26610
18.21
81.79
5926
32536
18.21
100.00
/camwheels/cam/epaco2ch4/vclch4gas.sas
D4-17
-------
Appendix E1
Dependence of gCH4/s for Diesel Vehicles on Vehicle Characteristics
-------
1
17:31 Friday, December 7, 2001
All Cycles, 25C, AC off, not High Altitude, Diesel fuel
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 14 ART-CD FTP FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 NYCC SC03 SCC12
ST01 USO 6
fedcat 2 Fed_HDV Fed_LDT4
model_yr 6 1991 1995 1997 1998 1999 2000
colimitcat 2 D_10 D_15.5
hclimitcat 2 D_0.8 D_1.3
fi_type 2 DIRECT PFI
cat_type 2 NONE OXID
aspirated 2 CHARGED TURBO
tran_type 2 AUTO MANUAL
cylinder 2 6 8
Number of observations 155
NOTE: Due to missing values, only 152 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-1
-------
All Cycles,
25C, AC off, not High Altitude, Diesel fuel
17:31 Friday,
2
December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Sum of
Source
DF
Squares
Mean Square F Value
Pr > F
Model
27
0.10702182
0.00396377 1.23
0.2214
Error
124
0.39940520
0.00322101
Corrected Total
151
0.50642703
R-Square
Coef f
Var Root
MSE mgch4 s Mean
0.211327
188.
5875 0.056754 0.030094
Source
DF
Type I SS
Mean Square F Value
Pr > F
sched id
13
0.03537743
0.00272134 0.84
0.6123
model yr
5
0.03063739
0.00612748 1.90
0. 0986
tran type
1
0.03244710
0.03244710 10.07
0.0019
odometer
1
0.00000221
0.00000221 0.00
0.9791
avgtotpower
1
0.00052318
0.00052318 0.16
0.6876
cylinder
1
0.00640243
0.00640243 1.99
0.1611
road hp
1
0.00000474
0.00000474 0.00
0.9694
disp
1
0.00011234
0.00011234 0.03
0.8522
fedcat
1
0.00004522
0.00004522 0.01
0.9059
testwght
1
0.00145732
0.00145732 0.45
0.5024
zippy
1
0.00001245
0.00001245 0.00
0.9505
cat type
0
0.00000000
fi type
0
0.00000000
colimitcat
0
0.00000000
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-2
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 3
17:31 Friday, December 7, 2001
The GLM Procedure
it Variable: mgch4 s
Source
DF
Type I SS
Mean Square
F
Value
Pr
> F
aspirated
0
0.00000000
hclimitcat
0
0.00000000
Source
DF
Type II SS
Mean Square
F
Value
Pr
> F
sched id
13
0.03157927
0
00242917
0
75
0.
7063
model yr
3
0.02821897
0
00940632
2
92
0.
0367
tran type
1
0.00557900
0
00557900
1
73
0.
1906
odometer
1
0.00049211
0
00049211
0
15
0.
6966
avgtotpower
1
0.00039207
0
00039207
0
12
0.
7278
cylinder
1
0.00027744
0
00027744
0
09
0.
7696
road hp
1
0.00027343
0
00027343
0
08
0.
7713
disp
1
0.00026803
0
00026803
0
08
0.
7735
fedcat
1
0.00016400
0
00016400
0
05
0.
8219
testwght
1
0.00002770
0
00002770
0
01
0.
9263
zippy
1
0.00001245
0
00001245
0
00
0.
9505
cat type
0
0.00000000
fi type
0
0.00000000
colimitcat
0
0.00000000
aspirated
0
0.00000000
hclimitcat
0
0.00000000
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
sched id
ART-CD
12.47710900 B
-0.05107220 B
42.57570333
0.11114700
0.29
-0.46
0.7700
0.6467
/camwheels/cam/epaco2ch4/vclch4dies. sas
El-3
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 4
17:31 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
tran_type
tran_type
odometer
avgtotpower
cylinder
cylinder
road_hp
disp
fedcat
FTP
FTP_bnl
FTP_bn2
FTP_bn3
FWY-E
FWY-G
FWY-HI
LA92
NYCC
SC03
SCC12
ST01
USO 6
1991
1995
1997
1998
1999
2000
AUTO
MANUAL
Fed HDV
-0.03779718
-0.03494871
-0.03442876
-0.04476630
-0.04993936
-0.07108391
-0.00300718
-0.04656527
-0.06781614
-0. 03315592
-0.03955365
-0.01035824
0.00000000
0.06190911
-1.27630266
0.12366609
0.13531772
0.07602509
0.00000000
-0.10872600
0.00000000
-0. 00000025
-0.00140466
-2.38662879
0.00000000
-0.00640936
-1.67837943
-0. 01891794
0.11862685
0.10657434
0.13277177
0.10682075
0.09005023
0.13833138
0.02812612
0.09737226
0.14831638
0.11425007
0.14666103
0.11460946
0.18344034
4.82727293
0.08536117
0. 04808006
0.03103682
0.08261352
0.00000064
0.00402610
8.13194159
0. 02199814
5.81826945
0.08384048
-0.32
-0.33
-0.26
-0. 42
-0.55
-0.51
-0.11
-0. 48
-0.46
-0.29
-0.27
-0. 09
0.34.-0.26
1. 45
2. 81
2. 45
-1.32
-0.39
-0.35
-0.29
-0.29
-0.29
-0.23
0.7505
0.7435
0.7958
0.6759
0.5802
0.6083
0.9150
0.6333
0.6483
0.7721
0.7878
0.9281
0.7363
0.7919
0.1499
0.0057
0. 0157
0.1906
0.6966
0.7278
0.7696
0.7713
0.7735
0.8219
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-4
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 5
17:31 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
fedcat
testwght
zippy
cat_type
cat_type
fi_type
fi_type
colimitcat
colimitcat
aspirated
aspirated
hclimitcat
hclimitcat
Fed LDT4
NONE
OXID
DIRECT
PFI
D_10
D_15.5
CHARGED
TURBO
D_0 . 8
D 1.3
0.00000000
0.00000363
-0. 02220409
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
0.00000000
00003916
35716981
09
06
9263
9505
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-5
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 6
17:31 Friday, December 7, 2001
Class
model_yr
tran_type
sched_id
Number of observations 155
/camwheels/cam/epaco2ch4/vclch4dies. sas
El-6
The GLM Procedure
Class Level Information
Levels Values
6 1991 1995 1997 1998 1999 2000
2 AUTO MANUAL
16 ART-CD FTP FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 LSP1 LSP2 NYCC SC03
SCC12 ST01 US06
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 7
17:31 Friday, December 7, 2001
Dependent Variable: mgch4_s
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
21 0.10369210
133 0.40796510
154 0.51165720
Mean Square
0. 00493772
0.00306741
F Value
1. 61
Pr > F
0. 0558
R-Square
0.202659
Coeff Var
181.4066
Root MSE
0.055384
mgch4_s Mean
0.030530
Source
tran_type
model_yr
sched id
DF
1
5
15
Type I SS
0. 03437269
0.03348645
0.03583296
Mean Square
0. 03437269
0.00669729
0. 00238886
F Value
11.21
2.18
0.78
Pr > F
0.0011
0.0597
0.6990
Source
tran_type
model_yr
sched id
DF
1
5
15
Type II SS
0.03244710
0.03799487
0.03583296
Mean Square
0. 03244710
0. 00759897
0. 00238886
F Value
10.58
2. 48
0.78
Pr > F
0. 0015
0.0351
0.6990
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-7
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 8
17:31 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
0.0192951592 B
0. 02901066
0. 67
0.5071
tran type
AUTO
-.0644967955 B
0. 01983060
1
CO
K)
Cn
0.0015
tran type
MANUAL
0.0000000000 B
model yr
1991
0.0770689651 B
0. 03516896
2.19
0.0302
model yr
1995
0.0630336979 B
0.03263722
1—1
CO
0. 0556
model yr
1997
0.0726320265 B
0.03091339
2.35
0. 0203
model yr
1998
0.1160726043 B
0.03598850
3.23
0. 0016
model yr
1999
0.0722286306 B
0.02856717
2.53
0. 0126
model yr
2000
0.0000000000 B
sched id
ART-CD
-.0076209408 B
0.02798597
-0.27
0.7858
sched id
FTP
-.0018969597 B
0.02463240
-0. 08
0.9387
sched id
FTP bnl
-.0035362255 B
0.02499533
1
o
1—1
0.8877
sched id
FTP bn2
0.0063013412 B
0.02499556
0.25
0.8014
sched id
FTP bn3
-.0137951382 B
0.02595098
1
o
cn
CO
0.5959
sched id
FWY-E
-.0144910075 B
0.02798261
1
o
cn
K)
0.6054
sched id
FWY-G
-.0194921746 B
0.02613612
-0.75
0. 4571
sched id
FWY-HI
-.0103370740 B
0. 02499526
1
o
1—1
0.6799
sched id
LA92
-.0186871364 B
0.02650498
-0.71
0. 4820
sched id
LSP1
-.0849830927 B
0.06532681
-1.30
0.1955
sched id
LSP2
-.0474365477 B
0.06532681
-0.73
0. 4690
sched id
NYCC
-.0155379809 B
0.02252275
-0. 69
0.4915
sched id
SC03
-.0024115510 B
0.03090122
CO
o
o
1
0.9379
sched id
SCC12
0.0012192091 B
0.05228660
o
o
K)
0.9814
sched id
ST01
0.0247035325 B
0.02243025
1.10
0.2727
sched id
US0 6
0.0000000000 B
/camwheels/cam/epaco2ch4/vclch4dies. sas
El-8
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 9
17:31 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-9
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 10
17:31 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
152
3
10.1491896
2.2613775
3. 3857611
15.7083011
hclimit
152
3
0. 8507336
0.1910466
0.2708609
1.3174704
disp
155
0
6.6434328
0.6672787
5. 8833169
7.3000000
testwght
152
3
7398.28
1127.80
4500.00
9900.00
road hp
152
3
16.1934211
2.3629500
11.6000000
18.5000000
odometer
155
0
37807.07
42180.85
427.0000000
144673.00
Pi
155
0
0.3225086
0.0983316
0
0. 4282051
p2
155
0
0.0499147
0. 0522880
0
0.2081967
p3
155
0
0.0047414
0.0099502
0
0. 0415973
p4
155
0
0.0014794
0.0035386
0
0.0149750
avgtotpower
152
3
15.9695869
11.6481741
4.3623343
52.7897796
temp
155
0
76.8709677
3.8065386
70. 0000000
84. 0000000
rvp
0
155
mpg
155
0
15.3255138
4.2008088
6.6500000
29.6500000
co2
155
0
721.9665419
240.3688966
343.5680000
1526.44
gco2
155
0
2820.83
2012.22
397.5230667
7686.65
gco2 s
155
0
4.1516495
2. 0213204
0.5536533
11. 4326011
ch4
155
0
0.0063935
0. 0116805
0.0010000
0.1170000
gch4
155
0
0.0199566
0. 0377976
0.0011796
0.3091612
mgch4 s
155
0
0.0305304
0. 0576407
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/vclch4dies. sas
El-10
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 11
17:31 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
155
100.00
155
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
106
68.39
106
68.39
Fed LDT4
49
31. 61
155
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
8
5.16
8
5.16
1995
14
9. 03
22
14.19
1997
28
18. 06
50
32.26
1998
7
4.52
57
36. 77
1999
91
58.71
148
cn
d^
CO
2000
7
4.52
155
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
147
d^
CO
d^
147
d^
CO
d^
PFI
8
5.16
155
100.00
/camwheels/cam/epaco2ch4/vclch4dies. sas
El-11
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 12
17:31 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
113
42
72. 90
27.10
113
155
72. 90
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
64
91
41.29
58.71
64
155
41.29
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
8
147
5.16
94. 84
8
155
5.16
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
131
24
84.52
15. 48
131
155
84.52
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
B
155
100.00
155
100.00
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-12
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 13
17:31 Friday, December 7, 2001
The FREQ Procedure
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
3
1. 94
3
1. 94
0
152
98. 06
155
100.00
Cumulative
Cumulative
hchigh
Frequency
Percent
Frequency
Percent
3
1. 94
3
1. 94
0
152
98. 06
155
100.00
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-13
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 14
17:31 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
ART-CD
8
5.
,16
8
5.
,16
FTP
13
8.
, 39
21
13.
, 55
FTP bnl
12
7.
, 74
33
21.
,29
FTP bn2
12
7.
, 74
45
29.
, 03
FTP bn3
10
6.
, 45
55
35.
, 48
FWY-E
8
5.
,16
63
40.
, 65
FWY-G
11
7.
, 10
74
47.
, 74
FWY-HI
11
7.
, 10
85
54.
, 84
LA92
9
5.
, 81
94
60.
, 65
LSP1
1
0.
, 65
95
61.
,29
LSP2
1
0.
, 65
96
61.
, 94
NYCC
21
13.
, 55
117
75.
, 48
SC03
5
3.
,23
122
78.
, 71
SCC12
2
1.
,29
124
80.
, 00
ST01
22
14.
, 19
146
94.
, 19
USO 6
9
5.
, 81
155
100.
, 00
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
155 100.00 155 100.00
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-14
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 15
17:31 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
soakcat Frequency Percent Frequency Percent
116
74. 84
116
74. 84
GE60
24
1—1
cn
CO
140
90.32
LT60
15
CO
(J)
155
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0
155
100.00
155
100.00
Cumulative
Cumulative
tempcat
Frequency
Percent
Frequency
Percent
25
155
100.00
155
100.00
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
1
LO
O
1
LO
O
L
154
99. 35
155
100.00
Cumulative
Cumulative
rvpind
Frequency
Percent
Frequency
Percent
155
100.00
155
100.00
/camwheels/cam/epaco2ch4/vclch4dies.
sas
El-15
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 16
17:31 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 155 100.00 155 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 155 100.00 155 100.00
/camwheels/cam/epaco2ch4/vclch4dies.sas
El-16
-------
Appendix E2
Dependence of gCH4/s for Diesel Vehicles on Operating Conditions
-------
Diesel CH4 Operating Conditions
Class
msid_cause
sched_id
aeon
oxyind
altcat
soakcat
16:12 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Levels Values
12 1B7KF2361YJ14 661 1B7KF2364XJ59546 1B7KF2368WJ23770 1B7KM2683MS23882
1FTHW2 5 F 6VEC3180 1FTNF20F7YEA2924 1FTSW31F2XEA85 68 1FTSW31FXXEF0317
1GCHK33F6SF00630 3B7KC2364XG23502 3B7KF2363XG14345 3B7KF23D1VG83674
13 ART-CD FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 NYCC SC03 SCC12 ST01
USO 6
1 0
1 D
1 L
3 GE60 LT60 None
Number of observations 149
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-1
-------
Diesel CH4 Operating Conditions
2
16:12 Friday, December 7, 2001
The GLM Procedure
it Variable: mgch4 s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr
> F
Model
26
0.10933891
0. 00420534
1. 43
0.
1016
Error
122
0.35919289
0. 00294420
Corrected Total
148
0.46853181
R-Square
Coef f
Var Root
MSE mgch4 s
Mean
0.233365
193.
4237 0.054261 0.028053
Source
DF
Type I SS
Mean Square
F Value
Pr
> F
msid cause
11
0.06678487
0.00607135
2.06
0.
0281
sched id
12
0. 03103295
0.00258608
0. 88
0.
5707
soakcat
1
0. 00716234
0.00716234
2. 43
0.
1214
temp
1
0. 00403192
0. 00403192
1.37
0.
2442
avgtotpower
1
0. 00032683
0.00032683
0.11
0.
7396
aeon
0
0.00000000
oxyind
0
0.00000000
altcat
0
0.00000000
Source
DF
Type II SS
Mean Square
F Value
Pr
> F
msid cause
11
0.06290205
0.00571837
1. 94
0.
0402
sched id
11
0. 03902179
0.00354744
1.20
0.
2908
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-2
-------
Diesel CH4 Operating Conditions 3
16:12 Friday, December 7, 2001
The GLM Procedure
Dependent Variable:
mgch4 s
Source
DF
Type II SS
Mean Square
F
Value
Pr > F
soakcat
1
0.00688998
0.00688998
2.34
0.1287
temp
1
0.00434762
0. 00434762
1. 48
0.2266
avgtotpower
1
0. 00032683
0. 00032683
0.11
0.7396
aeon
0
0.00000000
oxyind
0
0.00000000
altcat
0
0.00000000
Standard
Parameter
Estimate
Error
t
Value
Pr > |t|
Intercept
-.2269053489 B
0.22940430
-0. 99
0.3246
msid cause
1B7KF2361YJ14 661
-.0321320258 B
0. 03079070
-1. 04
0.2988
msid cause
1B7KF2364XJ5954 6
-.0275156762 B
0. 02496243
-1.10
0.2725
msid cause
1B7KF2368WJ23770
0.0303638233 B
0. 02854390
1.06
0.2895
msid cause
1B7KM2 683MS23882
0.0591447871 B
0. 03765730
1.57
0.1189
msid cause
1FTHW2 5 F 6VEC3180
0.0136307305 B
0. 02188115
0. 62
0.5345
msid cause
1FTNF20F7YEA2924
0.0047882393 B
0. 02415643
0.20
0.8432
msid cause
1FTSW31F2XEA85 68
-.0024096222 B
0. 02345439
-0.10
0.9183
msid cause
1FTSW31FXXEF0317
0.0008227789 B
0.01974714
0. 04
0.9668
msid cause
1GCHK33F6SF00 630
-.0054910982 B
0.02128273
-0.26
0.7968
msid cause
3B7KC2364XG23502
0.0837906082 B
0.02576595
3.25
0. 0015
msid cause
3B7KF2363XG14345
-.0037470706 B
0.02654892
-0.14
0.8880
msid cause
3B7KF23D1VG8367 4
0.0000000000 B
sched id
ART-CD
0.0056456814 B
0.07533348
0. 07
0.9404
sched id
FTP bnl
0.0694120612 B
0.08311722
0. 84
0. 4053
sched id
FTP bn2
0.0520182851 B
0.09762642
0.53
0.5951
sched id
FTP bn3
0.0251721636 B
0.08019777
0.31
0.7542
sched id
FWY-E
-.0004061962 B
0.06035616
-0. 01
0.994 6
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-3
-------
Diesel CH4 Operating Conditions 4
16:12 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr
> 111
sched id
FWY-G
0.0028753885 B
0
09447716
0
03
0
. 9758
sched id
FWY-HI
-.0071508210 B
0
02328303
-0
31
0
. 7593
sched id
LA92
0.0081513535 B
0
07179858
0
11
0
. 9098
sched id
NYCC
0.0162033972 B
0
10099174
0
16
0
. 8728
sched id
SC03
0.0280841904 B
0
08308505
0
34
0
. 7359
sched id
SCC12
0.0552634774 B
0
11599919
0
48
0
. 6346
sched id
ST01
0.0831506609 B
0
08600269
0
97
0
. 3355
sched id
USO 6
0.0000000000 B
soakcat
GE60
-.0358008171 B
0
02340280
-1
53
0
. 1287
soakcat
LT60
0.0000000000 B
soakcat
None
0.0000000000 B
temp
0.0027459996
0
00225974
1
22
0
.2266
avgtotpower
0.0009309028
0
00279400
0
33
0
. 7396
aeon
0
0.0000000000 B
oxyind
D
0.0000000000 B
altcat
L
0.0000000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-4
-------
Diesel CH4 Operating Conditions 5
16:12 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
149
0
10.4503448
2.2062713
3. 3857611
15.7083011
hclimit
149
0
0.8760821
0.1862526
0.2708609
1.3174704
disp
149
0
6.6231864
0.6691190
5. 8833169
7.3000000
testwght
149
0
7494.09
1126.44
4500.00
9900.00
road hp
149
0
16.1832215
2.3097152
11.6000000
18.5000000
odometer
149
0
35111.44
41583.24
427.0000000
144673.00
Pi
149
0
0.3147688
0.1053548
0
0. 4282051
p2
149
0
0.0561890
0.0566120
0. 0011521
0.2081967
p3
149
0
0.0062696
0.0116951
0
0. 0415973
p4
149
0
0.0019850
0.0041905
0
0.0149750
avgtotpower
149
0
17.1687414
12.7651738
4.3623343
52.7897796
temp
149
0
77.7785235
4.5364077
70. 0000000
89.0000000
rvp
0
149
mpg
149
0
15.2038255
4.3792835
6.6500000
29.6500000
co2
149
0
733.9485302
252.9116495
343.5680000
1526.44
gco2
149
0
2577.30
1702.42
658.1954667
6861.74
gco2 s
149
0
4.3779733
2.1471661
1.7707536
11. 4326011
ch4
149
0
0.0056980
0.0114099
0.0010000
0.1170000
gch4
149
0
0.0146340
0.0237503
0.0011796
0.2084085
mgch4 s
149
0
0.0280527
0.0562650
0.0019595
0.6171219
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-5
-------
Diesel CH4 Operating Conditions 6
16:12 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
149
100.00
149
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
103
69.13
103
69.13
Fed LDT4
46
30. 87
149
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
4
2. 68
4
2. 68
1995
13
8.72
17
11. 41
1997
26
17. 45
43
28. 86
1998
6
4. 03
49
32. 89
1999
87
58.39
136
91.28
2000
13
8.72
149
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
145
97.32
145
97.32
PFI
4
2. 68
149
100.00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-6
-------
Diesel CH4 Operating Conditions 7
16:12 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
110
39
73. 83
26.17
110
149
73. 83
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
64
85
42. 95
57. 05
64
149
42. 95
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
4
145
2. 68
97.32
4
149
2. 68
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
124
25
83.22
16.78
124
149
83.22
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
S
149
100.00
149
100.00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-7
-------
Diesel CH4 Operating Conditions
16:12 Friday, December 7, 2001
The FREQ Procedure
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
0
149
100.00
149
100.00
Cumulative
Cumulative
hchigh
Frequency
Percent
Frequency
Percent
0
149
100.00
149
100.00
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
ART-CD
8
5.37
8
5.37
FTP bnl
12
8. 05
20
13. 42
FTP bn2
12
8. 05
32
21. 48
FTP bn3
10
6.71
42
28.19
FWY-E
8
5.37
50
33. 56
FWY-G
11
7.38
61
40. 94
FWY-HI
13
8.72
74
49. 66
LA92
9
6.04
83
55.70
NYCC
24
16.11
107
71. 81
SC03
6
4. 03
113
75. 84
SCC12
1
0. 67
114
76.51
ST01
22
14.77
136
91.28
USO 6
13
8.72
149
100.00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-8
-------
Diesel CH4 Operating Conditions 9
16:12 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
149
100.00
149
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
None
24
16
109
16.11
10.74
73.15
24
40
149
16.11
26. 85
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
149
100.00
149
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
25
35
139
10
93.29
6.71
139
149
93.29
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
L 149 100.00 149 100.00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-9
-------
Diesel CH4 Operating Conditions 10
16:12 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
149 100.00 149 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 149 100.00 149 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 149 100.00 149 100.00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-10
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 11
16:12 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Class Levels Values
msid_cause 12 1B7KF2361YJ14661 1B7KF2364XJ59546 1B7KF2368WJ23770 1B7KM2683MS23882
1FTHW2 5 F 6VEC3180 1FTNF20F7YEA2924 1FTSW31F2XEA85 68 1FTSW31FXXEF0317
1GCHK33F6SF00630 3B7KC2364XG23502 3B7KF2363XG14345 3B7KF23D1VG83674
sched id
13 ART-CD FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 NYCC SC03 SCC12 ST01
USO 6
aeon
altcat
soakcat
1 0
1 L
3 GE60 LT60 None
Number of observations 149
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-11
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 12
16:12 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Source
DF
Sum of
Squares
Mean Square
F Value
Pr > F
Model
25
0.10499129
0.00419965
1. 42
0.1076
Error
123
0.36354051
0.00295561
Corrected Total
148
0.46853181
R-Square
Coef f
Var Root
MSE mgch4 s
Mean
0.224086
193.
7981 0.054366 0.028053
Source
DF
Type I SS
Mean Square
F Value
Pr > F
msid cause
11
0.06678487
0.00607135
2. 05
0. 0287
sched id
12
0. 03103295
0.00258608
0. 87
0.5741
soakcat
1
0. 00716234
0.00716234
2. 42
0.1221
avgtotpower
1
0.00001114
0.00001114
0. 00
0.9512
altcat
0
0.00000000
aeon
0
0.00000000
Source
DF
Type II SS
Mean Square
F Value
Pr > F
msid cause
11
0.06012955
0. 00546632
1. 85
0.0527
sched id
11
0.03677464
0.00334315
1.13
0.3430
soakcat
1
0. 00716837
0.00716837
2. 43
0.1220
avgtotpower
1
0.00001114
0. 00001114
0. 00
0.9512
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-12
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 13
16:12 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Source
altcat
aeon
DF
0
0
Type II SS
0.00000000
0.00000000
Mean Square
F Value
Pr > F
Parameter
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched id
1B7KF2361YJ14 661
1B7KF2364XJ5954 6
1B7KF2368WJ23770
1B7KM2 683MS23882
1FTHW2 5 F 6VEC3180
1FTNF20F7YEA2924
1FTSW31F2XEA85 68
1FTSW31FXXEF0317
1GCHK33F6SF00 630
3B7KC2364XG23502
3B7KF2363XG14345
3B7KF23D1VG8367 4
ART-CD
FTP_bnl
FTP_bn2
FTP_bn3
FWY-E
FWY-G
FWY-HI
LA92
NYCC
Estimate
0.0151570610
-.0050928324
-.0121501797
0.0343137822
0.0659831002
0.0075853723
0.0144840411
0.0091939061
0.0072001774
-.0054918812
0.0798518513
-.0035038013
0.0000000000
-.0083878303
0.0384152748
0.0151422833
-.0066411875
-.0122526214
-.0192280813
-.0050711252
-.0142236610
-.0087877715
Standard
Error
0.11400235
0. 02132393
0. 02156461
0. 02841311
0. 03730653
0. 02134936
0. 02284481
0. 02146410
0.01907384
0.02132393
0.02561075
0.02659956
0.07458714
0.07925951
0. 09296990
0. 07595107
0.05967896
0.09288912
0.02326500
0.06953176
0.09906699
t Value
0.13
-0.24
-0.56
1.21
1.77
0.36
0. 63
0. 43
0.38
-0.26
3.12
-0.13
-0.11
0. 48
0.16
-0. 09
-0.21
-0.21
-0.22
-0.20
-0. 09
Pr > |t|
0.8944
0. 8116
0.5742
0.2295
0.0794
0.7230
0.5272
0.6692
0.7065
0.7972
0. 0023
0.8954
0.9106
0.6288
0. 8709
0.9305
0.8377
0.8364
0.8278
0.8383
0.9295
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-13
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 14
16:12 Friday, December 7, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched_id
sched_id
sched_id
sched_id
soakcat
soakcat
soakcat
avgtotpower
altcat
aeon
SC03
SCC12
ST01
USO 6
GE60
LT60
None
L
0
0. 0050103365
0. 0156546973
0. 0494631713
0.0000000000
-.0365056950
0.0000000000
0.0000000000
0.0001674341
0.0000000000
0.0000000000
08104281
11154108
08156979
02344090
00272771
0
0
-1
06
14
61
56
06
9508
8886
5454
1220
9512
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-14
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 15
16:12 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
149
0
10.4503448
2.2062713
3.3857611
15.7083011
hclimit
149
0
0.8760821
0.1862526
0.2708609
1.3174704
disp
149
0
6.6231864
0.6691190
5. 8833169
7.3000000
testwght
149
0
7494.09
1126.44
4500.00
9900.00
road hp
149
0
16.1832215
2.3097152
11.6000000
18.5000000
odometer
149
0
35111.44
41583.24
427.0000000
144673.00
Pi
149
0
0.3147688
0.1053548
0
0. 4282051
p2
149
0
0.0561890
0.0566120
0. 0011521
0.2081967
p3
149
0
0.0062696
0.0116951
0
0. 0415973
p4
149
0
0.0019850
0.0041905
0
0.0149750
avgtotpower
149
0
17.1687414
12.7651738
4.3623343
52.7897796
temp
149
0
77.7785235
4.5364077
70. 0000000
89.0000000
rvp
0
149
mpg
149
0
15.2038255
4.3792835
6.6500000
29.6500000
co2
149
0
733.9485302
252.9116495
343.5680000
1526.44
gco2
149
0
2577.30
1702.42
658.1954667
6861.74
gco2 s
149
0
4.3779733
2.1471661
1.7707536
11. 4326011
ch4
149
0
0.0056980
0.0114099
0.0010000
0.1170000
gch4
149
0
0.0146340
0.0237503
0.0011796
0.2084085
mgch4 s
149
0
0.0280527
0.0562650
0.0019595
0.6171219
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-15
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 16
16:12 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
149
100.00
149
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
103
69.13
103
69.13
Fed LDT4
46
30. 87
149
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
4
2. 68
4
2. 68
1995
13
8.72
17
11. 41
1997
26
17. 45
43
28. 86
1998
6
4. 03
49
32. 89
1999
87
58.39
136
91.28
2000
13
8.72
149
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
145
97.32
145
97.32
PFI
4
2. 68
149
100.00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-16
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 17
16:12 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
110
39
73. 83
26.17
110
149
73. 83
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
64
85
42. 95
57. 05
64
149
42. 95
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
4
145
2. 68
97.32
4
149
2. 68
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
124
25
83.22
16.78
124
149
83.22
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
S
149
100.00
149
100.00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-17
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 18
16:12 Friday, December 7, 2001
The FREQ Procedure
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
149
100.00
149
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0 149 100.00 149 100.00
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
ART-CD
8
5.
, 37
8
5.
, 37
FTP bnl
12
8.
, 05
20
13.
, 42
FTP bn2
12
8.
, 05
32
21.
, 48
FTP bn3
10
6.
, 71
42
28.
, 19
FWY-E
8
5.
, 37
50
33.
,56
FWY-G
11
7.
, 38
61
40.
, 94
FWY-HI
13
8.
, 72
74
49.
, 66
LA92
9
6.
, 04
83
55.
, 70
NYCC
24
16.
, 11
107
71.
, 81
SC03
6
4.
, 03
113
75.
, 84
SCC12
1
0.
, 67
114
76.
, 51
ST01
22
14.
, 77
136
91.
,28
US0 6
13
8.
, 72
149
100.
, 00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-18
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 19
16:12 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
149
100.00
149
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
None
24
16
109
16.11
10.74
73.15
24
40
149
16.11
26. 85
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
149
100.00
149
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
25
35
139
10
93.29
6.71
139
149
93.29
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
L 149 100.00 149 100.00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-19
-------
Diesel CH4 Operating Conditions (without temp or oxyind) 20
16:12 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
149 100.00 149 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 149 100.00 149 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 149 100.00 149 100.00
/camwheels/cam/epaco2ch4/Doplch4.sas
E2-20
-------
Appendix E3
Dependence of gCH4/s for Diesel Vehicles on Special Conditions
-------
Diesel CH4 Soak Time (FTP bnl VS. FTP bn3)
Class
msid_cause
sched_id
aeon
altcat
1
16:15 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Levels Values
11 1B7KF2361YJ14 661 1B7KF2364XJ59546 1B7KM2683MS23882 1FTHW25F6VEC3180
1FTNF20F7YEA2924 1FTSW31F2XEA85 68 1FTSW31FXXEF0317 1GCHK33F6SF00630
3B7KC2364XG23502 3B7KF2363XG14345 3B7KF23D1VG83674
2 FTP_bnl FTP_bn3
1 0
1 L
Number of observations 22
/camwheels/cam/epaco2ch4/Doplch4_SR.sas
E3-1
-------
Diesel CH4 Soak Time (FTP_bnl VS. FTP_bn3) 2
16:15 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Source
DF
Sum of
Squares
Mean Square
F Value
Pr > F
Model
12
0.01768263
0.00147355
4.50
0. 0153
Error
9
0. 00294699
0.00032744
Corrected Total
21
0.02062962
R-Square
Coeff Var Root
MSE mgch4 s
Mean
0.857148
68
13789 0.018095 0.026557
Source
DF
Type I SS
Mean Square
F Value
Pr > F
msid cause
sched id
temp
avgtotpower
aeon
altcat
10
1
1
0
0
0
0.01622564
0.00134277
0.00011422
0.00000000
0.00000000
0.00000000
0.00162256
0.00134277
0.00011422
4. 96
4.10
0.35
0. 0122
0.0735
0.5693
Source
DF
Type II SS
Mean Square
F Value
Pr > F
msid cause
sched id
temp
avgtotpower
9
1
1
0
0.00834944
0.00134277
0.00011422
0.00000000
0. 00092772
0.00134277
0.00011422
2. 83
4.10
0.35
0.0684
0.0735
0.5693
/camwheels/cam/epaco2ch4/Doplch4_SR.sas
E3-2
-------
Diesel CH4 Soak Time (FTP_bnl VS. FTP_bn3) 3
16:15 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Source DF Type II SS Mean Square F Value Pr > F
aeon 0 0.00000000
altcat 0 0.00000000
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
sched_id
sched_id
temp
avgtotpower
aeon
altcat
1B7KF2361YJ14 661
1B7KF2364XJ5954 6
1B7KM2 683MS23882
1FTHW2 5 F 6VEC3180
1FTNF20F7YEA2924
1FTSW31F2XEA85 68
1FTSW31FXXEF0317
1GCHK33F6SF00 630
3B7KC2364XG23502
3B7KF2363XG14345
3B7KF23D1VG8367 4
FTP_bnl
FTP bn3
-.0906408797
-.0249376929
-.0249376929
0.0732862812
-.0152679752
-.0045803926
-.0275332487
-.0081429201
-.0173037053
-.0000508933
-.0234108954
0.0000000000
0.0163876268
0.0000000000
0.0015267975
0.0000000000
0.0000000000
0.0000000000
19434313
02559075
01809540
01827911
02084139
01968720
02267641
01572429
02223750
02382603
01827911
00809251
00258506
-0. 47
-0.91
-1.38
4. 01
-0.73
-0.23
-1.21
-0.52
-0.78
-0. 00
-1.28
2. 03
0.59
6520
3553
2015
0031
4825
8212
2556
6170
4565
9983
2323
0735
5693
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/Doplch4 SR.sas
E3-3
-------
Diesel CH4 Soak Time (FTP_bnl VS. FTP_bn3) 4
16:15 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
22
0
8.4601189
1.5539132
4.1057925
9.7991038
hclimit
22
0
0.7081135
0.1345841
0.3284634
0.8218603
disp
22
0
6.5210021
0.6786131
5.8833169
7.3000000
testwght
22
0
6765.73
874.0647890
4500.00
7812. 00
road hp
22
0
15.7681818
2.3957077
11.6000000
18.5000000
odometer
22
0
38253.18
44647.59
427.0000000
144538.00
Pi
22
0
0.3386139
0
0.3386139
0.3386139
p2
22
0
0.0475248
0
0. 0475248
0. 0475248
p3
22
0
0
0
0
0
p4
22
0
0
0
0
0
avgtotpower
22
0
14.3399643
1.6409118
10.5314393
16.2160616
temp
22
0
74.9090909
3.5309393
70. 0000000
82. 0000000
rvp
0
22
mpg
22
0
17.1436364
2.4228153
12.1400000
21.7700000
co2
22
0
596.6543182
88.4266642
449.1000000
764.6980000
gco2
22
0
2142.60
317.5426073
1612.73
2746.05
gco2 s
22
0
4.2511949
0.6300449
3.1998623
5.4485154
ch4
22
0
0.0037273
0.0043989
0.0010000
0.0200000
gch4
22
0
0.0133847
0.0157967
0.0035910
0. 0718206
mgch4 s
22
0
0.0265570
0.0313427
0.0071251
0.1425011
/camwheels/cam/epaco2ch4/Doplch4_SR.sas
E3-4
-------
Diesel CH4 Soak Time (FTP_bnl VS. FTP_bn3) 5
16:15 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
22
100.00
22
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
17
77.27
17
77.27
Fed LDT4
5
22.73
22
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
2
9.09
2
9.09
1995
2
9.09
4
18.18
1997
4
18.18
8
36.36
1999
12
54.55
20
90. 91
2000
2
9.09
22
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
20
90. 91
20
90. 91
PFI
2
9.09
22
100.00
/camwheels/cam/epaco2ch4/Doplch4_SR.sas
E3-5
-------
Diesel CH4 Soak Time (FTP_bnl VS. FTP_bn3) 6
16:15 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
16
6
72.73
27.27
16
22
72.73
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
11
11
50. 00
50. 00
11
22
50. 00
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
2
20
9.09
90. 91
2
22
9.09
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
17
5
77.27
22.73
17
22
77.27
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
S 22 100.00 22 100.00
/camwheels/cam/epaco2ch4/Doplch4_SR.sas
E3-6
-------
Diesel CH4 Soak Time (FTP bnl VS. FTP bn3)
7
cohigh
0
The FREQ Procedure
Frequency
22
Percent
100.00
22
16:15 Friday, December 7, 2001
Cumulative Cumulative
Frequency Percent
100.00
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
0
22
100.00
22
100.00
sched id Frequency Percent
Cumulative
Frequency
Cumulative
Percent
FTP_bnl
FTP bn3
12
10
54.55
45. 45
12
22
54.55
100.00
start run
Frequency
22
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
22
100.00
soakcat Frequency Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
12
10
54.55
45. 45
12
22
54.55
100.00
/camwheels/cam/epaco2ch4/Doplch4 SR.sas
E3-7
-------
Diesel CH4 Soak Time (FTP bnl VS. FTP bn3)
16:15 Friday, December 7, 2001
The FREQ Procedure
aeon
Frequency
22
Cumulative Cumulative
Percent Frequency Percent
100.00
22
100.00
Cumulative Cumulative
tempcat Frequency Percent Frequency Percent
25
22
100.00
22
100.00
Cumulative Cumulative
altcat Frequency Percent Frequency Percent
L
22
100.00
22
100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
22
100.00
22
100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None
22
100.00
22
100.00
/camwheels/cam/epaco2ch4/Doplch4_SR.sas
E3-8
-------
Diesel CH4 Soak Time (FTP_bnl VS. FTP_bn3) 9
16:15 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 22 100.00 22 100.00
/camwheels/cam/epaco2ch4/Doplch4_SR.sas
E3-9
-------
Appendix F1
Dependence of gCH4/s for Combined Vehicles on Vehicle
Characteristics
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 1
17:32 Saturday, December 8, 2001
Class
cohigh
cat_type
hchigh
sched id
model_yr
tran_type
fueltype
The GLM Procedure
Class Level Information
Levels Values
2 0 1
4 3WAY NONE OX3W OXID
2 0 1
52 4 0_MPH 45_MPH 50_MPH 55_MPH 60_MPH 65_MPH 75_MPH 80_MPH 85_MPH 95_MPH ART-AB
ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5 CACYC6
CACYC7 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G FWY-HI HWFET
LA4 LA92 LOCAL LSP1 LSP2 LSP3 NONFWY NYCC RAMP SC03 SCC12 SCC36 ST01 UNCFTP
UNCFTP_bnl UNCFTP_bn2 UNCFTP_bn3 US0 6
27 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
2 AUTO MANUAL
2 DIES GAS
Number of observations 40280
NOTE: Due to missing values, only 27287 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-1
-------
Only MSOD Data, All Cycles, 25C,
AC off, not High Altitude, Diesel or Non-Oxy Gasoline 2
17:32 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
71
5299
.48336
74.64061
164.93
<.0001
Error
27215
12316
.05897
0.45255
Corrected Total
27286
17615
.54233
R-Square
Coef f
Var
Root
MSE mgch4 s
Mean
0.300841
123.
8254
0.672716 0.543278
Source
DF
Type I SS
Mean Square
F Value
Pr > F
sched id
38
1263.
027292
33.237560
73. 45
<.0001
cohigh
1
2638.
634879
2638.634879
5830.64
<.0001
hchigh
1
463.
206764
463.206764
1023.56
<.0001
cat type
3
627.
635389
209.211796
462.30
<.0001
model yr
26
294.
605980
11.330999
25. 04
<.0001
fueltype
1
12.
262708
12.262708
27.10
<.0001
tran type
1
0.
110343
0.110343
0.24
0.6215
Source
DF
Type
II SS
Mean Square
F Value
Pr > F
sched id
38
1251.
849910
32.943419
72. 80
<.0001
cohigh
1
576.
201802
576.201802
1273.24
<.0001
hchigh
1
321.
614045
321.614045
710.68
<.0001
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-2
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 3
17:32 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Source
DF
Type II SS
Mean Square
F Value
Pr > F
cat_type
model_yr
fueltype
tran_type
3
26
1
1
305.981704
254.960155
12.168381
0.110343
101.993901
9.806160
12.168381
0.110343
225.38
21. 67
26.89
0.24
<.0001
<.0001
<.0001
0.6215
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
2.067118859 B
0.30000956
6.89
<.0001
sched id
40 MPH
-0.617465006 B
0.67527510
1
o
1—1
0.3605
sched id
ART-AB
-0.523281017 B
0. 08922774
CO
LO
1
<.0001
sched id
ART-CD
-0.573508194 B
0.08603885
-6.61
<.0001
sched id
ART-EF
-0.666324658 B
0. 07565598
1
CO
CO
1—1
<.0001
sched id
CAART1
-0.892284249 B
0.10920180
-8.17
<.0001
sched id
CAART2
-0.806910425 B
0.10673889
-7.56
<.0001
sched id
CAART3
-0.951144847 B
0.10512056
1
O
cn
<.0001
sched id
CACYC1
-0.730546072 B
0.11950659
-6.11
<.0001
sched id
CACYC2
-0.706418393 B
0.10667995
-6. 62
<.0001
sched id
CACYC3
-0.714624645 B
0.10920402
LO
1
<.0001
sched id
CACYC4
-0.826506451 B
0.10747562
-7. 69
<.0001
sched id
CACYC5
-0.928094955 B
0.11188341
1
CO
CO
o
<.0001
sched id
CACYC6
-0.895728603 B
0.10586382
CO
1
<.0001
sched id
CACYC7
-0.935829582 B
0.10585918
CO
CO
1
<.0001
sched id
F505
-0.598351216 B
0.06637409
1
O
1—1
<.0001
sched id
FTP bnl
-0.494992923 B
0.05224975
-9. 47
<.0001
sched id
FTP bn2
-0.987463032 B
0.05226287
1
1—1
CO
CO
<.0001
sched id
FTP bn3
-0.857466982 B
0.05225100
-16.41
<.0001
sched id
FWY-AC
-0.204695942 B
0.08298458
-2. 47
0. 0136
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-3
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 4
17:32 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: mgch4_s
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched id
FWY-D
-0.279067250 B
0.08846786
1
CO
1—1
Cn
0. 0016
sched id
FWY-E
-0.510522756 B
0.08663821
-5. 89
<.0001
sched id
FWY-F
-0.615482296 B
0.07565646
-8.14
<.0001
sched id
FWY-G
-0.728716704 B
0.08409230
-8. 67
<.0001
sched id
FWY-HI
-0.180131167 B
0.07390620
-2. 44
0.0148
sched id
HWFET
-0.934838052 B
0. 05295971
-17.65
<.0001
sched id
LA4
-0.560094770 B
0.14652648
-3. 82
0. 0001
sched id
LA92
-0.530296126 B
0. 07407520
-7.16
<.0001
sched id
LOCAL
-0.742733561 B
0. 08853247
-8.39
<.0001
sched id
LSP1
-0.988722259 B
0. 05723294
-17.28
<.0001
sched id
LSP2
-1.031025037 B
0.05720994
-18. 02
<.0001
sched id
LSP3
-0.984168724 B
0. 05723255
-17.20
<.0001
sched id
NYCC
-0.974760123 B
0. 05458012
-17.86
<.0001
sched id
RAMP
-0.181496193 B
0.08712335
-2. 08
0.0372
sched id
SC03
-0.577947410 B
0.31167657
-1. 85
0.0637
sched id
SCC12
-1.048254313 B
0.05543014
-18.91
<.0001
sched id
SCC36
-0.985162657 B
0.05565502
-17.70
<.0001
sched id
ST01
-0.256679509 B
0.06683549
-3.84
0.0001
sched id
UNCFTP
-0.907755854 B
0.08445905
-10.75
<.0001
sched id
USO 6
0.000000000 B
cohigh
0
-0.512701561 B
0.01436842
-35.68
<.0001
cohigh
1
0.000000000 B
hchigh
0
-0.350965593 B
0.01316524
-26.66
<.0001
hchigh
1
0.000000000 B
cat type
3WAY
-0.348860882 B
0.01679111
-20.78
<.0001
cat type
NONE
-0.106450738 B
0.07513664
-1. 42
0.1566
cat type
OX3W
-0.131149114 B
0.01672537
-7. 84
<.0001
cat type
OXID
0.000000000 B
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-4
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 5
17:32 Saturday, December 8, 2001
Dependent Variable: mgch4_s
Parameter
model
yr
1974
model
yr
1975
model
yr
1976
model
yr
1977
model
yr
1978
model
yr
1979
model
yr
1980
model
yr
1981
model
yr
1982
model
yr
1983
model
yr
1984
model
yr
1985
model
yr
1986
model
yr
1987
model
yr
1988
model
yr
1989
model
yr
1990
model
yr
1991
model
yr
1992
model
yr
1993
model
yr
1994
model
yr
1995
model
yr
1996
model
yr
1997
model
yr
1998
model
yr
1999
model
yr
2000
fueltype
DIES
The GLM
Procedure
Standard
Estimate
Error
t Value
Pr > |t|
1.664586686
B 0.48621010
3. 42
0. 0006
1.184294033
B 0.48814258
2. 43
0. 0153
1.655704523
B 0.34291225
4. 83
<.0001
0.387844351
B 0.29787335
1.30
0.1929
0.391632359
B 0.29713663
1.32
0.1875
0.553341860
B 0.29702199
1.86
0.0625
0.127906184
B 0.29601664
0. 43
0.6657
0.340198227
B 0.29516230
1.15
0.2491
0.259627332
B 0.29562325
0. 88
0.3798
0.148918060
B 0.29533263
0.50
0.6141
0.309184145
B 0.29555594
1. 05
0.2955
0.246631732
B 0.29531146
0. 84
0. 4036
0.242881903
B 0.29539362
0. 82
0.4110
0.162787891
B 0.29529586
0.55
0.5815
0.261941822
B 0.29518713
0. 89
0.3749
0.242509594
B 0.29528886
0. 82
0.4115
0.195560393
B 0.29525762
0. 66
0.5078
0.198691076
B 0.29547360
0. 67
0.5013
0.244375612
B 0.29580505
0. 83
0.4087
0.042242383
B 0.29684857
0.14
0.8868
0.123871808
B 0.29663587
0. 42
0.6763
-0.127337546
B 0.29659665
1
o
CO
0.6677
-0.076855756
B 0.29652463
-0.26
0.7955
-0.066510363
B 0.29527201
1
o
K)
CO
0. 8218
-0.017177018
B 0.30373757
O
O
1
0. 9549
0.018340020
B 0.28421385
0.06
0.9485
0.000000000
B
-0.510536032
B 0.09845589
1
cn
l—1
<.0001
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-5
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 6
17:32 Saturday, December 8, 2001
Dependent Variable: mgch4_s
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
fueltype GAS
tran_type AUTO
tran_type MANUAL
0.000000000 B
-0.004714506 B
0.000000000 B
0.00954763
-0. 49
0.6215
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-6
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 7
17:32 Saturday, December 8, 2001
fueltype=DIES
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
139
0
10.3494738
2.2247368
3. 3857611
15.7083011
hclimit
139
0
0. 8675933
0.1878586
0.2708609
1.3174704
disp
139
0
6.6752142
0.6629772
5. 8833169
7.3000000
testwght
139
0
7456.12
1136.83
4500.00
9900.00
road hp
139
0
16.2532374
2.3413827
11.6000000
18.5000000
odometer
139
0
37147.66
42320.95
427. 0000000
144673.00
Pi
139
0
0.3195415
0.1019676
0
0. 4282051
p2
139
0
0. 0532002
0.0541708
0.0011521
0.2081967
p3
139
0
0. 0052871
0.0103720
0
0. 0415973
p4
139
0
0.0016497
0.0037000
0
0.0149750
avgtotpower
139
0
16.4190891
12.0805502
4.3623343
52.7897796
temp
139
0
77.0791367
3.8279384
70.0000000
84. 0000000
rvp
0
139
mpg
139
0
15.1608633
4.2950183
6.6500000
29.6500000
co2
139
0
733.3549712
248. 4853375
343.5680000
1526.44
gco2
139
0
2511.02
1690.33
658.1954667
6861.74
gco2 s
139
0
4.2750310
2.0680068
1.7707536
11.4326011
ch4
139
0
0.0060288
0.0117461
0.0010000
0.1170000
gch4
139
0
0.0152253
0. 0244697
0.0011796
0.2084085
mgch4 s
139
0
0.0293962
0. 0587974
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-7
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 8
17:32 Saturday, December 8, 2001
fueltype=GAS
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
27148
0
5.2352475
3.4435612
3.2000000
39.0000000
hclimit
27148
0
0.5144850
0.2880877
0.2500000
3.4000000
disp
27148
0
2.8505490
1.1193345
0.9996722
7.5385120
testwght
22197
4951
3252.15
625.1932113
2000.00
8800.00
road hp
20668
6480
8.6001887
2.4798879
3.2000000
23.4000000
odometer
27040
108
56745.62
32808.39
343.0000000
581110.00
Pi
27148
0
0.3512363
0.0624786
0
0.4411765
p2
27148
0
0.0290399
0. 0298742
0
0.2081967
p3
27148
0
0.000674179
0.0040271
0
0. 0415973
p4
27148
0
0.000183828
0.0013018
0
0.0149750
avgtotpower
20668
6480
5.9512063
3.3273545
0.2568667
54.2476938
temp
27148
0
75.6708634
1.6075032
68.0000000
85.0000000
rvp
27148
0
8. 9857559
0.0568386
8.7000000
9.2000000
mpg
27148
0
22.5198339
8.2586864
0.8857765
81.5800000
co2
27145
3
453.7043668
263.1679326
19.9000000
3888.40
gco2
27147
1
1588.80
926.1879058
71.4614528
38594.16
gco2 s
27148
0
2.4617807
1.2293848
0.1417886
71.2505440
ch4
27148
0
0.1061255
0.2224997
-1.5300000
8.7500000
gch4
27147
1
0.3362344
0.5081940
-5.9049075
19.1427067
mgch4 s
27148
0
0.5459089
0.8046850
-6.8541176
26.5515278
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-8
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 9
17:32 Saturday, December 8, 2001
fueltype=DIES
The
FREQ Procedure
Cumulative
Cumulative
fueltype
Frequency
Percent
Frequency
Percent
DIES
139
100.00
139
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
93
66. 91
93
66. 91
Fed LDT4
46
33. 09
139
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
4
2. 88
4
2. 88
1995
13
9. 35
17
12.23
1997
26
18.71
43
30. 94
1998
6
4.32
49
35.25
1999
84
60. 43
133
95. 68
2000
6
4.32
139
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
135
97.12
135
97.12
PFI
4
2. 88
139
100.00
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-9
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 10
17:32 Saturday, December 8, 2001
- fueltype=DIES --
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
100
39
71. 94
28. 06
100
139
71. 94
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
54
85
38. 85
61.15
54
139
38. 85
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
4
135
2. 88
97.12
4
139
2. 88
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
121
18
87. 05
12. 95
121
139
87. 05
100.00
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-10
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 11
17:32 Saturday, December 8, 2001
-- fueltype=DIES
The FREQ Procedure
repairs
Frequency
139
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
139
100.00
cohigh
0
Frequency
139
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
139
100.00
hchigh
0
Frequency
139
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
139
100.00
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-11
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 12
17:32 Saturday, December 8, 2001
fueltype=DIES
The
FREQ Procedure
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
ART-CD
8
5.76
8
5.76
FTP bnl
12
8. 63
20
14.39
FTP bn2
12
8. 63
32
23. 02
FTP bn3
10
7.19
42
30.22
FWY-E
8
5.76
50
35. 97
FWY-G
11
7. 91
61
CO
CO
CO
FWY-HI
11
7. 91
72
cn
1—1
CO
o
LA92
9
6. 47
81
58.27
NYCC
21
15.11
102
73. 38
SC03
5
3. 60
107
76. 98
SCC12
1
0.72
108
77.70
ST01
22
15. 83
130
93. 53
US0 6
9
6. 47
139
Cumulative
100.00
Cumulative
start run
Frequency
Percent
Frequency
Percent
139
100.00
139
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
100
24
15
71. 94
17.27
10.79
100
124
139
71. 94
89.21
100.00
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-12
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 13
17:32 Saturday, December 8, 2001
-- fueltype=DIES
The FREQ Procedure
Frequency
139
Percent
100.00
Cumulative
Frequency
139
Cumulative
Percent
100.00
tempcat Frequency
25 139
Cumulative Cumulative
Percent Frequency Percent
100.00
139
100.00
altcat Frequency Percent
L 139 100.00
Cumulative Cumulative
Frequency Percent
139
100.00
rvpind Frequency
139
Cumulative Cumulative
Percent Frequency Percent
100.00
139
100.00
oxygenate Frequency
None 139
Cumulative Cumulative
Percent Frequency Percent
100.00
139
100.00
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-13
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 14
17:32 Saturday, December 8, 2001
fueltype=DIES
The FREQ Procedure
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 139 100.00 139 100.00
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-14
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 15
17:32 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
27148
100.00
27148
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
31
o
1—1
1—1
31
0.11
Fed HDV
94
0.35
125
0.46
Fed LDT1
2487
9.16
2612
9. 62
Fed LDT2
319
1—1
1—1
CO
2931
1—1
o
CO
o
Fed LDT3
477
1.76
3408
12.55
Fed LDT4
23
CO
o
o
3431
12. 64
Fed LDV
23717
87.36
27148
100.00
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-15
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 16
17:32 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
1974
3
o
o
1—1
3
o
o
1—1
1975
3
0. 01
6
0. 02
1976
15
0.06
21
0. 08
1977
200
0.74
221
0. 81
1978
264
0. 97
485
1.79
1979
391
1. 44
876
3.23
1980
1067
3. 93
1943
7.16
1981
4709
17.35
6652
24.50
1982
1261
4. 64
7913
29.15
1983
1970
7.26
9883
36.40
1984
1339
4. 93
11222
41.34
1985
2114
7.79
13336
49.12
1986
1666
6.14
15002
55.26
1987
2081
7. 67
17083
62. 93
1988
2580
9.50
19663
72. 43
1989
1855
6. 83
21518
79.26
1990
1991
7.33
23509
o
CO
1991
994
3. 66
24503
90.26
1992
836
3.08
25339
93. 34
1993
379
1. 40
25718
94.73
1994
423
1.56
26141
96.29
1995
228
0. 84
26369
97.13
1996
418
1.54
26787
98. 67
1997
297
1. 09
27084
99. 76
1998
55
0.20
27139
99. 97
1999
9
0. 03
27148
100.00
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-16
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 17
17:32 Saturday, December 8, 2001
fueltype=GAS
The
FREQ Procedure
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
560
2.06
560
2.06
NOTFI
9932
36.58
10492
38. 65
PFI
10185
37.52
20677
76.16
TBI
6471
23. 84
27148
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
14801
54.52
14801
54.52
NONE
79
0.29
14880
54. 81
OX3W
8340
30.72
23220
85.53
OXID
3928
14. 47
27148
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
3
30
0.11
30
0.11
4
14987
55.20
15017
55.32
5
31
0.11
15048
55. 43
6
8775
32.32
23823
87.75
8
3325
12.25
27148
100.00
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-17
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 18
17:32 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
aspirated Frequency Percent Frequency Percent
CHARGED
NATURAL
13
670
26465
0. 05
2. 47
97. 48
13
683
27148
0. 05
2.52
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
19675
7473
72. 47
27.53
19675
27148
72. 47
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
A
B
3889
23259
14.33
85. 67
3889
27148
14.33
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
22634
4514
83. 37
16. 63
22634
27148
83. 37
100.00
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-18
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 19
17:32 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
0 21186 78.04 21186 78.04
1 5962 21.96 27148 100.00
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-19
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 20
17:32 Saturday, December 8, 2001
fueltype=GAS
The
FREQ Procedure
Cumulative
Cumulati1
sched id
Frequency
Percent
Frequency
Percenl
40 MPH
1
0. 00
1
0. 00
ART-AB
84
0.31
85
0.31
ART-CD
86
0.32
171
0. 63
ART-EF
141
0.52
312
1.15
CAART1
49
0.18
361
1.33
CAART2
52
0.19
413
1.52
CAART3
54
0.20
467
1.72
CACYC1
39
0.14
506
1.86
CACYC2
52
0.19
558
2.06
CACYC3
49
0.18
607
2.24
CACYC4
51
0.19
658
2. 42
CACYC5
46
0.17
704
2.59
CACYC6
53
0.20
757
2.79
CACYC7
53
0.20
810
2. 98
F505
238
0. 88
1048
3.86
FTP bnl
5270
19.41
6318
23.27
FTP bn2
5248
19. 33
11566
42. 60
FTP bn3
5270
19.41
16836
62. 02
FWY-AC
104
0.38
16940
62. 40
FWY-D
86
0.32
17026
62.72
FWY-E
84
0.31
17110
63. 02
FWY-F
141
0.52
17251
63. 54
FWY-G
90
0.33
17341
63. 88
FWY-HI
142
0.52
17483
64. 40
HWFET
3290
12.12
20773
76. 52
LA4
24
0. 09
20797
76. 61
LA92
143
0.53
20940
77.13
LOCAL
86
0.32
21026
77. 45
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-20
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 21
17:32 Saturday, December 8, 2001
fueltype=GAS
The
FREQ Procedure
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
LSP1
724
2. 67
21750
80.12
LSP2
727
2. 68
22477
82.79
LSP3
724
2. 67
23201
85. 46
NYCC
1245
4.59
24446
90. 05
RAMP
90
0.33
24536
90.38
SCC12
1090
4. 02
25626
94.39
SCC36
1036
3. 82
26662
98.21
ST01
210
0.77
26872
98. 98
UNCFTP
102
0.38
26974
99. 36
USO 6
174
0. 64
27148
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
26636
CO
1—1
1—1
26636
CO
1—1
1—1
R
180
0. 66
26816
98.78
S
332
1.22
27148
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
16403
60. 42
16403
60. 42
GE60
5423
19. 98
21826
80. 40
LT60
5322
19. 60
27148
100.00
/camwheels/cam/epaco2ch4/vclch4comb. sas
Fl-21
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 22
17:32 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Frequency
27148
Percent
100.00
Cumulative
Frequency
27148
Cumulative
Percent
100.00
tempcat
25
Frequency
27148
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
27148
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
102
27046
0.38
99. 62
102
27148
0.38
100.00
rvpind
9
Frequency
27148
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
27148
100.00
oxygenate
None
Frequency
27148
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
27148
100.00
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-22
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 23
17:32 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 27148 100.00 27148 100.00
/camwheels/cam/epaco2ch4/vclch4comb.sas
Fl-23
-------
Appendix G1
Dependence of gCH4/gC02 for Gasoline Vehicles on Vehicle
Characteristics
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline
1
Class
fedcat
model_yr
colimit
hclimit
fi_type
cat_type
aspirated
tran_type
repairs
cohigh
hchigh
cylinder
10:45 Saturday, December 8, 2001
The GLM Procedure
Class Level Information
Levels Values
6 Fed_HDV Fed_LDTl Fed_LDT2 Fed_LDT3 Fed_LDT4 Fed_LDV
25 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1990 1991 1992 1993 1994 1995 1996 1997 1998
12 3.2 3.4 4.4 5 6.7 7 10 14.4 15 18 20 39
8 0.25 0.41 0.8 1.18 1.5 1.7 2 3.4
3 NOTFI PFI TBI
4 3WAY NONE OX3W OXID
2 CHARGED NATURAL
2 AUTO MANUAL
2 A B
2 0 1
2 0 1
5 3 4 5 6 8
Number of observations 8747
NOTE: Due to missing values, only 5086 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclratgas. sas
Gl-1
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 2
10:45 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
54
183382715. 8
3395976.2
32.24
<.0001
Error
5031
529854876.6
105318.0
Corrected Total
5085
713237592.4
R-Square
Coef f
Var Root
MSE uch4 co2
Mean
0.257113
130.
9832 324.
5274 247,
.7625
Source
DF
Type I SS
Mean Square
F Value
Pr > F
cohigh
1
123164609.6
123164609.6
1169.45
<.0001
hchigh
1
22345855.6
22345855.6
212.18
<.0001
cat type
3
20215806.8
6738602.3
63. 98
<.0001
model yr
24
4385095.1
182712.3
1.73
0. 0145
avgtotpower
1
1187149.8
1187149.8
11.27
0.0008
tran type
1
3364404.3
3364404.3
31. 95
<.0001
colimit
9
8160399.8
906711.1
8. 61
<.0001
fi type
2
113047. 6
56523.8
0.54
0.5847
zippy
1
134386.6
134386.6
1.28
0.2587
aspirated
1
113880. 8
113880.8
1. 08
0.2985
disp
1
66248.9
66248.9
0. 63
0. 4277
fedcat
5
98039.9
19608.0
0.19
0.9679
repairs
1
28646.1
28646.1
0.27
0.6020
hclimit
2
4937. 6
2468.8
0. 02
0.9768
/camwheels/cam/epaco2ch4/vclratgas.sas
Gl-2
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 3
10:45 Saturday, December 8, 2001
Dependent Variable: uch4_co2
The GLM Procedure
Source
DF
Type I SS
Mean Square
F Value
Pr > F
odometer
1
207.5
207.5
0. 00
0.964 6
Source
DF
Type II SS
Mean Square
F Value
Pr > F
cohigh
1
29854198.54
29854198.54
283.47
<.0001
hchigh
1
15792951.39
15792951.39
149.95
<.0001
cat type
3
7311018.99
2437006.33
23.14
<.0001
model yr
22
3416270.19
155285.01
1. 47
0. 0709
avgtotpower
1
1044828.80
1044828.80
9. 92
0. 0016
tran type
1
673186.02
673186.02
6. 39
0. 0115
colimit
6
217346.50
36224.42
0.34
0.9137
fi type
2
148050.31
74025.16
0.70
0.4952
zippy
1
136634.55
136634.55
1.30
0.2548
aspirated
1
107582.58
107582.58
1. 02
0.3122
disp
1
78308.15
78308.15
0.74
0.3886
fedcat
5
32733.53
6546.71
0.06
0.9974
repairs
1
27668.35
27668.35
0.26
0.6083
hclimit
2
4923.69
2461.84
0. 02
0.9769
odometer
1
207.46
207.46
0. 00
0.964 6
Parameter
Intercept
cohigh
cohigh
hchigh
Estimate
996.2273854 B
-264.8346509 B
0.0000000 B
-180.6243595 B
Standard
Error
194.0070259
15.7298075
14.7501345
/camwheels/cam/epaco2ch4/vclratgas.sas
t Value
5.14
-16.84
-12.25
Pr > |t|
<.0001
<.0001
<.0001
Gl-3
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 4
10:45 Saturday, December 8, 2001
Dependent Variable: uch4_co2
The GLM Procedure
Parameter
hchigh
cat_type
cat_type
cat_type
cat_type
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
model_yr
1
3WAY
NONE
OX3W
OXID
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
Estimate
0.0000000 B
-53.8386815 B
-56.8727663 B
50.6955087 B
0.0000000 B
311.7123584 B
-21.2661522 B
393.1661631 B
120.2702236 B
75.6027964 B
135.5418037 B
99.9814719 B
81.2631778 B
41.0273513 B
10.4463356 B
74.9629314 B
8.8299431 B
17.2277430 B
26.2605235 B
50.8099250 B
81.0601392 B
32.3402339 B
28.3752320 B
32.5628312 B
16.8344270 B
14.3884891 B
-5.5774954 B
6.0168142 B
Standard
Error
22.1104300
81.9107913
21.0682948
381.
339.
210.
161.
159.
147.
92.
87.
89.
86.
87.
86.
86.
86.
86.
86.
86.
88.
91.
96.
96.
112.
105.
7674690
5955743
1262887
1621088
2418256
3854931
8615252
0875910
2277499
2908194
4605701
6011561
6214287
7239065
3515190
7707710
1605203
3495107
4625412
0180349
5826065
1674150
4043055
t Value
-2. 43
-0. 69
2. 41
0. 82
-0.06
1. 87
0.75
0. 47
0. 92
1. 08
0. 93
0.46
0.12
0.86
0.10
0.20
0.30
0.59
0. 93
0.38
0.32
0.36
0.18
0.15
-0. 05
0.06
Pr > |t|
0.0149
0.4875
0.0162
0.4143
0.9501
0.0614
0.4555
0.6350
0.3578
0.2817
0.3508
0.6457
0.9036
0.3914
0. 9188
0. 8424
0.7621
0.5563
0.3503
0.7074
0.7481
0.7218
0.8608
0. 8816
0.9603
0.9545
/camwheels/cam/epaco2ch4/vclratgas. sas
Gl-4
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 5
10:45 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Standard
Parameter
Estimate
Error
t Value
Pr
> 111
model yr
1997
-5.1736775 B
107.5411628
LO
O
o
1
0
9616
model yr
1998
0.0000000 B
avgtotpower
-39.0835701
12. 4086052
1
CO
1—1
cn
0
0016
tran type
AUTO
-29.2014226 B
11.5501540
1
K)
Cn
CO
0
0115
tran type
MANUAL
0.0000000 B
colimit
3.2
-230.3125214 B
289.8643517
-0.79
0
4269
colimit
3.4
-198.9587761 B
159.8581744
-1.24
0
2133
colimit
4.4
-185.3381059 B
150.6026629
1
1—1
K)
CO
0
2185
colimit
5
75.0527079 B
362.0406412
0.21
0
8358
colimit
6.7
-208.2345265 B
253.7256379
-0. 82
0
4119
colimit
7
-178.2621665 B
159.7508985
-1.12
0
2645
colimit
10
-86.3147747 B
38.5133153
-2.24
0
0251
colimit
14. 4
51.9499905 B
372.3035054
0.14
0
8890
colimit
15
-59.3732960 B
196.5964997
1
o
CO
o
0
7627
colimit
18
0.0000000 B
colimit
20
0.0000000 B
colimit
39
0.0000000 B
fi type
NOTFI
13.6897371 B
16.7800314
0. 82
0
4146
fi type
PFI
-7.2861248 B
13.7880153
1
o
cn
CO
0
5972
fi type
TBI
0.0000000 B
zippy
-108.3855820
95.1573982
-1.14
0
2548
aspirated
CHARGED
30.8426011 B
30.5162620
1. 01
0
3122
aspirated
NATURAL
0.0000000 B
disp
21.1017234
24.4717903
0.86
0
3886
fedcat
Fed HDV
-2.5383339 B
364.1467119
1
o
o
1—1
0
9944
fedcat
Fed LDT1
61.3233604 B
156.0871093
0.39
0
6944
fedcat
Fed LDT2
93.1895889 B
216.2141473
0. 43
0
6665
fedcat
Fed LDT3
61.8969178 B
160.5179174
0.39
0
6998
/camwheels/cam/epaco2ch4/vclratgas.sas
Gl-5
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 6
10:45 Saturday, December 8, 2001
Dependent Variable: uch4_co2
The GLM Procedure
Parameter
fedcat
fedcat
repairs
repairs
hclimit
hclimit
hclimit
hclimit
hclimit
hclimit
hclimit
hclimit
odometer
Fed_LDT4
Fed_LDV
A
B
0.25
0. 41
0.8
1.18
1.5
1.7
2
3.4
Estimate
-97.1000480
0.0000000
-6.3013386
0.0000000
-20.7560554
10. 4274599
0.0000000
0.0000000
0.0000000
0.0000000
0.0000000
0.0000000
-0.0000073
503
12
213
217
Standard
Error
4127353
2939796
6394342
4482396
t Value
-0.19
-0
-0
0
0. 0001651
51
10
05
Pr > |t|
0. 8471
-0. 04
6083
9226
9618
0.964 6
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclratgas.sas
Gl-6
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 7
10:45 Saturday, December 8, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
5086
0
5.3486827
3. 5797350
3.2000000
39.0000000
hclimit
5086
0
0.5189501
0.3034812
0.2500000
3.4000000
disp
5086
0
2.7835101
1.1183247
0.9996722
7.5385120
testwght
5086
0
3203.09
598.4195402
2000.00
8800.00
road hp
5086
0
8.6903854
2.4555590
3.2000000
23.4000000
odometer
5086
0
56699.18
31873.52
343.0000000
241829.00
Pi
5086
0
0.3674121
0
0.3674121
0.3674121
p2
5086
0
0.0260916
0
0.0260916
0. 0260916
p3
5086
0
0
0
0
0
p4
5086
0
0
0
0
0
avgtotpower
5086
0
5.6513341
1.1524073
3.1558463
14.7178308
temp
5086
0
75.0622690
0.5506712
75. 0000000
80. 0000000
rvp
5086
0
8.9752064
0.0733836
8.7000000
9.2000000
mpg
5086
0
22.5615740
4.6915214
6.3062467
46.2930740
co2
5086
0
391.2446506
85.6997994
168.0000000
1397.50
gco2
5086
0
4319.92
946.2519541
1854.97
15430.46
gco2 s
5086
0
2.3015008
0.5041300
0.9882618
8.2208084
ch4
5086
0
0.0948122
0.1273688
0.0050000
4.3600000
gch4
5086
0
1.0468666
1.4063393
0.0552074
48.1408189
uch4 co2
5086
0
247.7625227
374.5170846
12.4751744
12729.93
/camwheels/cam/epaco2ch4/vclratgas. sas
Gl-7
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 8
10:45 Saturday, December 8, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
5086
100.00
5086
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
12
0.24
12
0.24
Fed LDT1
473
CO
O
485
9.54
Fed LDT2
23
LO
o
508
9.99
Fed LDT3
77
1.51
585
11.50
Fed LDT4
1
o
o
K)
586
11.52
Fed LDV
4500
CO
CO
CO
5086
100.00
/camwheels/cam/epaco2ch4/vclratgas. sas
Gl-8
-------
osite
l_yr
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 9
10:45 Saturday, December 8, 2001
The FREQ Procedure
Cumulative Cumulative
Frequency Percent Frequency Percent
1
o
o
K)
1
o
o
K)
1
0. 02
2
0. 04
5
0.10
7
0.14
35
0. 69
42
0. 83
43
0. 85
85
1. 67
105
2.06
190
3.74
188
3.70
378
7. 43
1009
19.84
1387
27.27
267
5.25
1654
32.52
420
8.26
2074
40.78
269
5.29
2343
46. 07
425
8.36
2768
54. 42
380
7. 47
3148
61. 90
382
7.51
3530
69. 41
437
8.59
3967
78. 00
308
6.06
4275
84. 05
356
7. 00
4631
91. 05
150
2. 95
4781
O
O
84
1. 65
4865
95. 65
51
1. 00
4916
96. 66
52
1. 02
4968
97. 68
27
0.53
4995
98.21
39
0.77
5034
98. 98
37
0.73
5071
99. 71
15
0.29
5086
100.00
/camwheels/cam/epaco2ch4/vclratgas. sas
Gl-9
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 10
10:45 Saturday, December 8, 2001
The
FREQ Procedure
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
NOTFI
2203
43. 31
2203
43. 31
PFI
1724
33. 90
3927
77.21
TBI
1159
22.79
5086
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
2639
51. 89
2639
51. 89
NONE
20
0.39
2659
52.28
OX3W
1665
32.74
4324
CO
cn
o
K)
OXID
7 62
1—1
CO
5086
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
3
5
0.10
5
0.10
4
2984
58. 67
2989
58.77
5
8
0.16
2997
Cn
CO
CO
6
1509
29. 67
4506
O
CO
CO
8
580
11. 40
5086
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
CHARGED
132
2. 60
132
2. 60
NATURAL
4954
97. 40
5086
100.00
/camwheels/cam/epaco2ch4/vclratgas. sas
Gl-10
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 11
10:45 Saturday, December 8, 2001
The FREQ Procedure
Cumulative Cumulative
tran_type Frequency Percent Frequency Percent
AUTO
MANUAL
3434
1652
67.52
32. 48
3434
5086
67.52
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
A
B
964
4122
18. 95
81. 05
964
5086
18. 95
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
4170
916
81. 99
18. 01
4170
5086
81. 99
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
3887
1199
76. 43
23. 57
3887
5086
76. 43
100.00
sched id
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
FTP 5086 100.00 5086 100.00
/camwheels/cam/epaco2ch4/vclratgas.sas
Gl-11
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 12
10:45 Saturday, December 8, 2001
The FREQ Procedure
start run
Frequency
5086
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
5086
100.00
soakcat Frequency Percent
5086 100.00
Cumulative Cumulative
Frequency Percent
5086
100.00
aeon Frequency
0 5086
Cumulative Cumulative
Percent Frequency Percent
100.00
5086
100.00
tempcat Frequency Percent
25 5086 100.00
Cumulative
Frequency
Cumulative
Percent
5086
100.00
altcat Frequency Percent
Cumulative
Frequency
Cumulative
Percent
5081
5
99.90
0.10
5081
5086
99.90
100.00
/camwheels/cam/epaco2ch4/vclratgas.sas
Gl-12
-------
FTP composite, 25C, AC off, not High Altitude, 9 RVP, Non-Oxy Gasoline 13
10:45 Saturday, December 8, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
9 5086 100.00 5086 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 5086 100.00 5086 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 5086 100.00 5086 100.00
/camwheels/cam/epaco2ch4/vclratgas.sas
Gl-13
-------
Appendix G2
Dependence of gCH4/gC02 for Gasoline Vehicles on Operating
Conditions
-------
Uch4_co2 Versus Operating Conditions
The GLM Procedure
Class Level Information
09:44 Tuesday, December 4, 2001
Class
msid cause
Levels Values
3782 0B65F131376_2508 0B65F131376_2511 0B7 6G106479_2507 0E91A117828_2825 0E91A176374_2241
0E91A176374_2342 0E92A202073_2826 0F02A214965_2845 0F03A240421_2830 0F03A240421_3015
0F03B153582_2829 0F14B604695_2829 0F40A135116_2508 0F40A135116_2511 0H87B156058_2827
0H87D142470 2824 0H87F137227 2507 0H87F141911 3016 0K32B621588 2828 0K36B613242 2823
WAUEA58A4LAI9671 WAUEB0819FA08190 WAUEB0890JA1415 6 WAUEB0898JA240 64 WAUFB0811GA11515
WAUFC0444JN02117 WAUGB0431DN01180 WAUGC0893JA17839 WAVGB0431DN01977 WBAAB6403F121309
WBAAD2319LED258 6 WBAAE6401J882392 WBAAG3302D900310 WBAAG3303B800720 WBAAG3304D900042
WBAAG3305D900311 WBAAG3305D901123 WBACA5327RFG0984 WBADB7403D104592 WBADK7307D795653
WDBDA29DXLF74314 WHLA10103500_224 WHLA10103500_234
WHLB310074005_23 WVW6A0166EW05296 WVWCA0530BK00888
WVWGA0165BW64234 WVWGB0166GW51770 WVWGB0167EW12301
WVWPA01G3KW19696 WVWRB11G8KW11127 YS3AB35J8G300087
YV1AA8842M145493 YV1AA8855M188530 YV1AX474XE203625
YV1AX8855F161975 YV1AX8859F164042 YV1DX8740F212838
YV1JS8835N105424 YV1LS5500R216469 ZFAA500B8B818238
ZL44A9D321918 23 ZL44AAD170176 25
WHLB310048376_28 WHLB310074005_22
WVWEB5159MK01287 WVWFB0329FE31677
WVWGB0167FW79197 WVWGB0167FW81190
Y S 3AK3 6DXL 3 00 611 YS3AT45L0F100163
YV1AX4925B119411 YV1AX8848F111957
YV1DX8741F218149 YV1FX875 6H111331
ZL24AAD232351 25 ZL44A9D321918 22
sched id
35 ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5 CACYC6 CACYC7
F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G FWY-HI HWFET LA92 LSP1
LSP2 LSP3 NYCC RAMP SC03 SCC12 SCC36 ST01 UNCFTP US06
oxyind
altcat
soakcat
2 0 1
2 OR
1 L
3 GE60 LT60 None
G2-1
-------
Number of observations 34468
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-2
-------
Dependent Variable: uch4_co2
Source
Model
Error
Corrected Total
Uch4 co2 Versus Operating Conditions
The GLM Procedure
DF
3822
30645
34467
23
09:44 Tuesday, December 4, 2001
Sum of
Squares
2699309648
1855497245
4554806894
Mean Square F Value Pr > F
706256 11.66 <.0001
60548
R-Square
0.592629
Coeff Var
106.2545
Root MSE
246.0653
uch4_co2 Mean
231.5810
Source
msid_cause
sched_id
rvp
soakcat
avgtotpower
temp
oxyind
aeon
altcat
DF
3781
34
1
2
1
1
1
1
0
Type I SS
2620597661
72176452
5448362
965258
47240
25615
32807
16252
0
Mean Square
693096
2122837
5448362
482629
47240
25615
32807
16252
F Value
11. 45
35. 06
89. 98
7. 97
0.78
0. 42
0.54
0.27
Pr > F
<.0001
<.0001
<.0001
0.0003
0.3771
0.5154
0.4617
0.6044
Source
msid_cause
sched_id
rvp
soakcat
avgtotpower
DF
3781
34
1
2
1
Type II SS
2565515940
20520066
5288137
961507
43608
Mean Square
678528
603531
5288137
480753
43608
F Value
11.21
9. 97
87.34
7. 94
0.72
Pr > F
<.0001
<.0001
<.0001
0.0004
0.3961
G2-3
-------
temp 1 36795 36795 0.61 0.4357
oxyind 1 30791 30791 0.51 0.4758
aeon 1 16252 16252 0.27 0.6044
altcat 0 0 ...
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-4
-------
Uch4 co2 Versus Operating Conditions
24
09:44 Tuesday, December 4, 2001
Dependent Variable: uch4_co2
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid cause
0B65F13137 6_2508
0B65F13137 6_2511
0B7 6G10 6479_2507
0E91A117828_2825
0E91A176374 2241
281.024364 B
-65.042836 B
-146.464788 B
-107.150272 B
-53.511867 B
-5.302871 B
158.0222306 1.78 0.0754
200.9360411 -0.32 0.7462
200.9358440 -0.73 0.4661
200.9526475 -0.53 0.5939
200.9187702 -0.27 0.7900
200.9195944 -0.03 0.9789
msid_cause YV1LS5500R216469 -198.138674 B 187.9832241 -1.05 0.2919
msid_cause ZFAA500B8B818238 588.082367 B 174.0045460 3.38 0.0007
msid~cause ZL24AAD232351_25 120.768874 B 173.9949113 0.69 0.4876
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-5
-------
Uch4_co2 Versus Operating Conditions 129
09:44 Tuesday, December 4, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid cause
ZL44A9D321918
22
582.698705 B
200. 9115745
2. 90
0. 0037
msid cause
ZL44A9D321918"
23
48.369562 B
200.9222416
0.24
0.8098
msid cause
ZL44AAD170176"
25
0.000000 B
sched id
ART-CD
-108.758148 B
47.6236930
1
K)
K)
CO
0. 0224
sched id
ART-EF
-85.219415 B
43.9849496
-1. 94
0.0527
sched id
CAART1
-88.306559 B
47.6531158
1
1—1
CO
cn
0.0639
sched id
CAART2
-66.214930 B
45.1455997
-1. 47
0.1425
sched id
CAART3
-70.702352 B
44.1731786
-1. 60
0.1095
sched id
CACYC1
-95.708879 B
45.2647982
-2.11
0.0345
sched id
CACYC2
-52.371621 B
42.2226696
-1.24
0.2148
sched id
CACYC3
-50.048991 B
44.1508393
-1.13
0.2570
sched id
CACYC4
-60.138645 B
45.4343087
-1.32
0.1856
sched id
CACYC5
-104.731769 B
47.1976228
-2.22
0.0265
sched id
CACYC6
-41.919673 B
47.3306305
1
o
CO
0.3758
sched id
CACYC7
-15.114106 B
48.9167761
1
o
CO
1—1
0.7573
sched id
F505
-87.615491 B
33.2451230
-2. 64
0. 0084
sched id
FTP bnl
-136.860372 B
46.9914818
-2. 91
0. 0036
sched id
FTP bn2
-80.336526 B
30.9715544
1
K)
Cn
0. 0095
sched id
FTP bn3
-106.127827 B
43.3022515
1
K)
Cn
0.0143
sched id
FWY-AC
-30.872858 B
43.2280651
-0.71
0. 4751
sched id
FWY-D
-94.927631 B
33.3108395
-2. 85
0.0044
sched id
FWY-E
-102.281114 B
44.2046503
1
K)
CO
1—1
0. 0207
sched id
FWY-F
-92.412477 B
37.1074742
-2. 49
0. 0128
sched id
FWY-G
-92.044050 B
46.1150178
1
K)
O
O
0. 0459
sched id
FWY-HI
-97.322650 B
30.5573946
1
CO
1—1
CO
0.0014
sched id
HWFET
-122.189449 B
44.1208785
-2.77
0. 0056
sched id
LA92
-91.644706 B
34.0462368
-2. 69
0. 0071
sched id
LSP1
29.955197 B
35.9149100
0. 83
0.4043
sched id
LSP2
35.352230 B
35.5957128
0. 99
0.3206
sched id
LSP3
51.210865 B
35. 4531998
1. 44
0.1486
sched id
NYCC
-58.525538 B
40.0208826
-1.46
0.1436
sched id
RAMP
-48.757297 B
48.4201449
1
1—1
o
1—1
0.3140
G2-6
-------
sched_id SC03 -124.035023 B 82.1162963 -1.51 0.1309
sched_id SCC12 -47.430115 B 32.6428645 -1.45 0.1462
sched_id SCC36 -116.705687 B 27.0624664 -4.31 <.0001
sched_id ST01 -91.291560 B 40.6696196 -2.24 0.0248
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-7
-------
Uch4_co2 Versus Operating Conditions 130
09:44 Tuesday, December 4, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
sched id
UNCFTP
-59.792008 B
38.6004950
-1
55
0.1214
sched id
USO 6
0.000000 B
rvp
15.463171
1.6546173
9
35
<.0001
soakcat
GE60
149.492119 B
38. 0277723
3
93
<.0001
soakcat
LT60
28.468030 B
33.7268511
0
84
0.3986
soakcat
None
0.000000 B
avgtotpower
-0.990417
1.1670336
-0
85
0.3961
temp
-0.486887
0.6245731
-0
78
0. 4357
oxyind
0
-3.137082 B
4.3991218
-0
71
0. 4758
oxyind
R
0.000000 B
aeon
0
-11.855249 B
22. 8827381
-0
52
0.6044
aeon
1
0.000000 B
altcat
L
0.000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the normal
equations. Terms whose estimates are followed by the letter 'B' are not uniquely estimable.
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-8
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 1
15:17 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
33224
1244
4. 9509692
3.2819037
3.2000000
39.0000000
hclimit
33128
1340
0. 4987597
0.2691672
0.2500000
3.4000000
disp
34468
0
2.8944854
1.2163404
0.9996722
8.3906916
testwght
34468
0
3362.57
971.6572286
2000.00
11050.00
road hp
34468
0
9.0110015
3.3811119
3.2000000
32.5000000
odometer
34352
116
56367.13
31892.07
47.0000000
241829.00
Pi
34468
0
0.3503207
0.0482399
0
0. 4411765
p2
34468
0
0.0326552
0.0275743
0
0.2081967
p3
34468
0
0. 000559479
0.0040458
0
0. 0415973
p4
34468
0
0.000169200
0.0013998
0
0.0149750
avgtotpower
34468
0
6.5360800
4.8174900
0.2568667
76.6929135
temp
34468
0
76.3953261
4.2143774
47. 0000000
116.0000000
rvp
34468
0
9. 3942671
1.0946061
6. 3000000
12.2000000
mpg
34468
0
22.1187771
6.4868029
2.2700000
81.5800000
co2
34468
0
433.0928316
206.9444022
16.8000000
3888.40
gco2
34468
0
1498.90
778.4087406
60.3292667
13963.35
gco2 s
34468
0
2.4517975
1.1344904
0.1197009
27.7050643
ch4
34468
0
0.0982724
0.1775045
0. 0010000
8.7500000
gch4
34468
0
0.3300741
0.4646714
0.0013872
19.1427067
mgch4 s
34468
0
0.5564378
0.7580194
0.0032306
26.5515278
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-9
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 2
15:17 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
34468
100.00
34468
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
127
0.37
127
0.37
Fed HDV
1245
3. 61
1372
CO
CO
Fed LDT1
2924
CO
CO
4296
12. 46
Fed LDT2
325
0. 94
4621
1—1
CO
d^
1—1
Fed LDT3
481
1. 40
5102
1—1
d^
CO
O
Fed LDT4
13
o
o
5115
1—1
CO
Fed LDV
29353
85.16
34468
100.00
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-10
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 3
15:17 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
1974
17
LO
O
o
17
LO
O
o
1975
12
0. 03
29
0. 08
1976
30
0. 09
59
0.17
1977
153
0. 44
212
0. 62
1978
197
0.57
409
1.19
1979
333
0. 97
742
2.15
1980
835
2. 42
1577
4.58
1981
4774
13. 85
6351
1—1
CO
CO
1982
1491
4.33
7842
22.75
1983
2841
8.24
10683
CO
o
1984
1924
5.58
12607
36.58
1985
3036
8. 81
15643
45.38
1986
3133
9.09
18776
54. 47
1987
3016
8.75
21792
63.22
1988
3143
9.12
24935
72.34
1989
2318
6. 73
27253
79. 07
1990
2277
6. 61
29530
85. 67
1991
1332
3.86
30862
89.54
1992
840
2. 44
31702
91. 98
1993
678
1. 97
32380
93. 94
1994
385
1.12
32765
95. 06
1995
549
1.59
33314
96. 65
1996
426
1.24
33740
97. 89
1997
558
1. 62
34298
99. 51
1998
170
0. 49
34468
100.00
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-11
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 4
15:17 Friday, December 7, 2001
The
FREQ Procedure
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
419
1.22
419
1.22
NOTFI
11181
32. 44
11600
33. 65
PFI
14207
41.22
25807
74. 87
TBI
8661
25.13
34468
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
14
0. 04
14
0. 04
3WAY
19745
57.29
19759
57.33
NONE
83
0.24
19842
57.57
OX3W
10578
30. 69
30420
88.26
OXID
4048
11.74
34468
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
3
29
0. 08
29
0. 08
4
19201
55.71
19230
55.79
5
54
0.16
19284
55. 95
6
10436
30.28
29720
86.22
8
4660
13. 52
34380
99. 74
10
88
0.26
34468
100.00
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-12
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 5
15:17 Friday, December 7, 2001
The FREQ Procedure
aspirated Frequency Percent
Cumulative Cumulative
Frequency Percent
27
CO
o
o
27
o
o
CO
CHARGED
1102
3.20
1129
3.28
NATURAL
33339
96. 72
34468
100.00
Cumulative
Cumulative
tran type
Frequency
Percent
Frequency
Percent
14
0. 04
14
0. 04
AUTO
24364
70. 69
24378
70.73
MANUAL
10090
29.27
34468
100.00
Cumulative
Cumulative
repairs
Frequency
Percent
Frequency
Percent
A
3249
9. 43
3249
9. 43
B
5902
17.12
9151
26. 55
S
25317
73. 45
34468
100.00
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
1244
27377
5847
3. 61
79. 43
16.96
1244
28621
34468
3. 61
83. 04
100.00
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-13
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 6
15:17 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
1340 3.89 1340 3.89
0 25938 75.25 27278 79.14
1 7190 20.86 34468 100.00
/camwheels/cam/epaco2ch4/oplRatio. sas
G2-14
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 7
15:17 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
ART-CD
45
o
1—1
CO
45
o
1—1
CO
ART-EF
64
0.19
109
0.32
CAART1
47
0.14
156
0. 45
CAART2
50
0.15
206
0. 60
CAART3
50
0.15
256
0.74
CACYC1
39
0.11
295
0.86
CACYC2
49
0.14
344
1. 00
CACYC3
47
0.14
391
1.13
CACYC4
48
0.14
439
1.27
CACYC5
45
0.13
484
1. 40
CACYC6
50
0.15
534
1.55
CACYC7
49
0.14
583
1. 69
F505
239
0. 69
822
2.38
FTP bnl
9560
27.74
10382
CO
o
1—1
K)
FTP bn2
9508
27.59
19890
57.71
FTP bn3
9555
27.72
29445
CO
en
CO
FWY-AC
42
0.12
29487
85.55
FWY-D
76
0.22
29563
85.77
FWY-E
45
0.13
29608
CO
en
o
FWY-F
112
0.32
29720
86.22
FWY-G
75
0.22
29795
86.44
FWY-HI
111
0.32
29906
86.76
HWFET
50
0.15
29956
86. 91
LA92
111
0.32
30067
87.23
LSP1
515
1. 49
30582
88.73
LSP2
517
1.50
31099
90.23
LSP3
517
1.50
31616
91.73
NYCC
164
0. 48
31780
92.20
RAMP
30
0. 09
31810
92.29
SC03
14
0. 04
31824
92.33
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-15
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 8
15:17 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
SCC12
1084
3.14
32908
95. 47
SCC36
1032
2. 99
33940
98. 47
ST01
142
0. 41
34082
98. 88
UNCFTP
102
0.30
34184
99.18
USO 6
284
0. 82
34468
100.00
Cumulative
Cumulative
start run
Frequency
Percent
Frequency
Percent
33830
98.15
33830
98.15
R
142
0. 41
33972
98.56
S
496
1. 44
34468
100.00
Cumulative
Cumulative
soakcat
Frequency
Percent
Frequency
Percent
GE60
9638
27. 96
9638
27. 96
LT60
9655
28. 01
19293
55. 97
None
15175
44. 03
34468
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0
34266
99. 41
34266
99. 41
1
202
0.59
34468
100.00
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-16
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 9
15:17 Friday, December 7, 2001
The FREQ Procedure
Cumulative
Cumulative
tempcat
Frequency
Percent
Frequency
Percent
5
3
o
o
1—1
3
o
o
1—1
15
5
o
o
1—1
8
o
o
K)
25
33559
97.36
33567
97.39
35
575
1. 67
34142
99. 05
45
326
0. 95
34468
100.00
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
L
34468
100.00
34468
100.00
Cumulative
Cumulative
rvpind
Frequency
Percent
Frequency
Percent
6
146
0. 42
146
0. 42
7
510
1. 48
656
1. 90
8
556
1. 61
1212
3. 52
9
26871
77. 96
28083
81. 48
10
23
0. 07
28106
81.54
11
1020
2. 96
29126
84.50
12
5342
15.50
34468
100.00
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-17
-------
Ratio of MicroGrams of CH4 to Grams of C02 Versus Operating Conditions 10
15:17 Friday, December 7, 2001
The FREQ Procedure
oxygenate
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
EtOH
MTBE
MeOH_EtOH
MeOH_TBA
None
2638
3214
68
6
28542
7. 65
9. 32
0.20
0. 02
82. 81
2638
5852
5920
5926
34468
7. 65
16. 98
17.18
17.19
100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
O 5926 17.19 5926 17.19
R 28542 82.81 34468 100.00
/camwheels/cam/epaco2ch4/oplRatio.sas
G2-18
-------
Appendix G3
Dependence of gCH4/gC02 for Gasoline Vehicles on Special
Conditions
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bnl)
The GLM Procedure
Class Level Information
1
15:26 Friday, December 7, 2001
Class Levels Values
msid_cause 57 1B3EJ46X0TN27942
~ 1B7GL23X6VS207 65
1FALP52U5TG19515
1FBJS31H4MHA6371
1FTEF15N3TLA6204
1G1JC124 6TM13549
1G4CU52155H63470
1GCGC24K6PE21849
1GMDX0 6E4VD13010
1GNGK2 6JXVJ3 67 62
1P4GP44R0TB4918 6
2B5WB35Z0RK54427
2GCGC29K2P110 667
3B7KF23W0SM16419
4T1CG12K8TU71331
sched_id 2 F505 FTP_bnl
aeon 2 0 1
oxyind 1 R
altcat 1 L
1B4GP44R7VB402 60
1B7GL23X8TS64978
1FALP53S2VG11918
1FMCU22X2TUC9731
1FTEF15Y7TLB9434
1G2NE52T3VM51809
1G4NJ52MXTC43690
1GCGC3 4 J 6VE13736
1GNDT13W07227189
1MELM50U7TG64 654
1P4GP44R5VB43200
2CNBE18 69T693495
2P4GH2536R238607
3B7KF23Z8VG82444
1B4GP54L1TB47731
1B7HC1643T5 65407
1FALP66L6SK15994
1FMDA11U9VZA2 50 6
1FTHE24H2PHA220 6
1G2WJ52M1TF2048 6
1G82G5281S215558
1GCGK24K6SE11319
1GNDT13W95224989
1MELM53S6VG610 64
2B4GP4431TR82162
2G4WB52L9S145158
2P4GH2537SR19053
3B7KF23ZXVM55883
1B7GL23X6V5207 65
1FALP1391VW1758 6
1FASP15J1SW617 65
1FTEF1547TLB9434
1FTJE34Y8SHB9014
1G4AG55M85 650 694
1G8ZF5284SZ30318
1GK0M19W9VB52228
1GNFK16R9VJ38 687
1N6SD11S2SC45944
2B4GP4534TR51823
2G4WS52M1V141616
2P4GP2437VR34032
4T1BF22K2VU90051
Number of observations 279
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-1
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bnl)
2
Dependent Variable: uch4_co2
Source
Model
Error
Corrected Total
15:26 Friday, December 7, 2001
The GLM Procedure
Sum of
DF Squares
61 2686351.275
217 475572.821
278 3161924.097
Mean Square
44038.545
2191.580
F Value
20. 09
Pr > F
<.0001
R-Square
0. 849594
Coeff Var
35.09963
Root MSE
46.81431
uch4_co2 Mean
133.3755
Source
msid_cause
sched_id
rvp
avgtotpower
temp
aeon
oxyind
altcat
DF Type I SS
56 2261654.603
1 417825.633
1 629.889
1 283.876
1 5877.763
1 79.512
0 0.000
0 0.000
Mean Square
40386.689
417825.633
629.889
283.876
5877.763
79.512
F Value
18. 43
190.65
0.29
0.13
2. 68
0. 04
Pr > F
<.0001
<.0001
0.5924
0.7193
0.1029
0.8491
Source
msid_cause
sched id
DF
56
1
Type II SS
1529862.791
359785.372
Mean Square
27318.978
359785.372
F Value
12. 47
164.17
Pr > F
<.0001
<.0001
/camwheels/cam/epaco2ch4/oplRatio SR.sas
G3-2
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bnl)
3
15:26 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Source
rvp
avgtotpower
temp
aeon
oxyind
altcat
DF Type II SS
1 2588.038
1 357.884
1 318.403
1 79.512
0 0.000
0 0.000
Mean Square
2588.038
357.884
318.403
79.512
F Value
Pr > F
1—1
1—1
CO
0
2784
0.16
0
6865
0.15
0
7035
o
o
0
8491
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid cause
1B3EJ4 6X0TN27942
1B4GP44R7VB402 60
1B4GP54L1TB47731
1B7GL23X6V5207 65
1B7GL23X6VS207 65
1B7GL23X8TS64978
1B7HC1643T5 65407
1FALP1391VW1758 6
1FALP52U5TG19515
1FALP53S2VG11918
1FALP66L6SK15994
1FASP15J1SW617 65
1FBJS31H4MHA6371
1FMCU22X2TUC9731
1FMDA11U9VZA2 50 6
1FTEF1547TLB9434
1FTEF15N3TLA6204
662.6606295
69.1584046
1.7786585
5.3669542
68.7432923
57.8065498
76.5062420
73.9100236
-25.2494052
13.9340224
36.5166080
-7.0114741
37.8030323
120.9654252
-18.0845587
14.5842946
16.3432129
39.2625162
526.9886131
49.3143652
41. 0924845
38.3032968
38.6014422
48. 8484794
39.2620520
42.6306850
48.7199283
48.4365949
38.8675451
48.6651447
41.3018340
48.4164916
48.9743884
41.3005355
49.3420707
42.0388834
1.26
1. 40
0. 04
0.14
1.78
1.18
1. 95
1.73
-0.52
0.29
0. 94
-0.14
0. 92
2.50
-0.37
0.35
0.33
0. 93
0.2099
0.1622
0.9655
0. 8887
0.0763
0.2380
0. 0526
0.0844
0.6048
0.7739
0.3485
0. 8856
0.3611
0. 0132
0.7123
0.7243
0.7408
0.3514
/camwheels/cam/epaco2ch4/oplRatio SR.sas
G3-3
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bnl) 4
15:26 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1FTEF15Y7TLB9434
27.2610893 B
47. 8269768
0.57
0.5693
msid
cause
1FTHE24H2PHA220 6
229.1052008 B
46.0623712
4. 97
<.0001
msid
cause
1FTJE34Y8SHB9014
360.5979522 B
42.2951144
8.53
<.0001
msid
cause
1G1JC124 6TM13549
49.8602819 B
48.7287088
1. 02
0.3073
msid
cause
1G2NE52T3VM51809
-0.6831035 B
48. 4291613
1
o
o
1—1
0.9888
msid
cause
1G2WJ52M1TF2048 6
31.8488202 B
48.3802936
0. 66
0.5110
msid
cause
1G4AG55M85 650 694
2.3985200 B
38.7743326
0.06
0.9507
msid
cause
1G4CU52155H63470
12.7071385 B
48.6438290
0.26
0.7942
msid
cause
1G4NJ52MXTC43690
26.3967085 B
48.6493262
0.54
0.5880
msid
cause
1G82G5281S215558
57.8030691 B
39.9960366
1. 45
0.1498
msid
cause
1G8ZF5284SZ30318
67.2853216 B
37. 9514534
1.77
0. 0776
msid
cause
1GCGC24K6PE21849
70.9215728 B
49.3979988
1. 44
0.1525
msid
cause
1GCGC3 4 J 6VE13736
91.6397053 B
46.5295152
1. 97
0.0502
msid
cause
1GCGK24K6SE11319
184.7030214 B
46.9475548
3. 93
0.0001
msid
cause
1GK0M19W9VB52228
55.4370157 B
50.5700771
1.10
0.2742
msid
cause
1GMDX0 6E4VD13010
-2.1159700 B
38.9218685
LO
o
o
1
0.9567
msid
cause
1GNDT13W07227189
4.9396778 B
40.7689708
0.12
0.9037
msid
cause
1GNDT13W95224989
30.1876495 B
49.3317478
0. 61
0.5412
msid
cause
1GNFK16R9VJ38 687
-8.7903635 B
51.9340468
-0.17
0.8657
msid
cause
1GNGK2 6JXVJ3 67 62
33.1403666 B
48.5279714
CO
O
0.4954
msid
cause
1MELM50U7TG64 654
25.6791869 B
48.3864367
0.53
0.5962
msid
cause
1MELM53S6VG610 64
24.6783526 B
48.7084407
0.51
0.6129
msid
cause
1N6SD11S2SC45944
16.6057502 B
48.3643433
0.34
0.7317
msid
cause
1P4GP44R0TB4918 6
10.9543416 B
48.7385380
0.22
0.8224
msid
cause
1P4GP44R5VB43200
13.5727446 B
48. 4584202
0.28
0.7797
msid
cause
2B4GP4431TR82162
10.2575796 B
38.8407477
0.26
0.7920
msid
cause
2B4GP4534TR51823
15.9254511 B
38.8946290
0. 41
0.6826
msid
cause
2B5WB35Z0RK54427
104.1570959 B
46.3584779
2.25
0. 0257
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-4
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bnl)
Dependent Variable: uch4_co2
15:26 Friday, December 7, 2001
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
sched_id
sched_id
rvp
avgtotpower
temp
aeon
aeon
oxyind
altcat
2CNBE18 69T693495
2G4WB52L9S145158
2G4WS52M1V141616
2GCGC29K2P110 667
2P4GH2536R238607
2P4GH2537SR19053
2P4GP2437VR34032
3B7KF23W0SM16419
3B7KF23Z8VG82444
3B7KF23ZXVM55883
4T1BF22K2VU90051
4T1CG12K8TU71331
F505
FTP bnl
-10.9826528
-2.1547847
3.7230066
93.1646471
6. 3423420
21.2801392
3. 0594205
125.7393690
26.5570546
28.1218746
-33.6639218
0.0000000
-76.4406733
0.0000000
-59.9217061
1.3375069
-0.5728597
5.6266076
0.0000000
0.0000000
0.0000000
48.5647983
38.8096885
48.5914189
46.2722482
48.3728561
48. 4907498
48.6323073
50.8396593
47.1627098
50.9601529
37.5201789
5.9659746
55.1413623
3.3098135
1.5029281
29.5399647
-0.23
-0.06
0. 08
2. 01
0.13
0. 44
0.06
2. 47
0.56
0.55
-0. 90
-12.81
-1. 09
0. 40
-0.38
0.19
0. 8213
0.9558
0.9390
0.0453
0.8958
0.6612
0.9499
0. 0142
0.5740
0.5816
0.3706
<.0001
0.2784
0.6865
0.7035
0.8491
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-5
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bnl) 6
15:26 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
172
107
4. 0226744
1.3792141
3.2000000
10. 0000000
hclimit
165
114
0.6416364
0.1921105
0.4100000
0. 8000000
disp
279
0
4.5031948
1.6684023
1.6715831
8.3906916
testwght
279
0
5087.52
1656.85
2581.00
9400.00
road hp
279
0
14.3379928
5.9840547
6.1000000
24.0000000
odometer
275
4
47556.57
36383.09
4829.00
169335.00
Pi
279
0
0.3382733
0.000335146
0.3379447
0.3386139
p2
279
0
0.0474769
0.000047038
0.0474308
0. 0475248
p3
279
0
0
0
0
0
p4
279
0
0
0
0
0
avgtotpower
279
0
11.7456414
4.1890324
5.7576284
20.0322887
temp
279
0
80.6240143
7.4262874
65.5000000
101.2000000
rvp
279
0
8.9505376
0.0864450
8.8000000
9.0000000
mpg
279
0
17.3669176
5.7691402
8.9300000
36.5300000
co2
279
0
547.8844910
155. 4336757
240.3850000
909.0030000
gco2
279
0
1967.42
558.1635851
863.1878127
3264.26
gco2 s
279
0
3.8998961
1.1072237
1.7092828
6. 4766965
ch4
279
0
0.0808566
0.0770867
0.0010000
0.4640000
gch4
279
0
0.2903537
0.2768182
0.0035909
1.6662369
mgch4 s
279
0
0.5757129
0.5480861
0.0070970
3.2728571
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-6
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bnl) 7
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
279
100.00
279
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
123
O
123
44. 09
Fed LDT1
6
2.15
129
46.24
Fed LDT2
69
24.73
198
70. 97
Fed LDT3
12
4.30
210
75.27
Fed LDT4
2
0.72
212
75. 99
Fed LDV
67
24. 01
279
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
12
4.30
12
4.30
1993
37
13.26
49
17.56
1995
77
27. 60
126
45.16
1996
55
19.71
181
64. 87
1997
83
29. 75
264
94. 62
1998
15
5.38
279
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-7
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bnl) 8
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
PFI
253
90. 68
253
90. 68
TBI
26
9. 32
279
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
231
82. 80
231
82. 80
OX3W
8
2. 87
239
85. 66
OXID
40
14.34
279
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
31
11.11
31
11.11
6
131
46. 95
162
58. 06
8
105
37. 63
267
95.70
10
12
4.30
279
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
2
0.72
2
0.72
CHARGED
7
2.51
9
3.23
NATURAL
270
96. 77
279
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-8
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bnl)
The FREQ Procedure
15:26 Friday, December 7, 2001
tran_type Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
258
21
92. 47
7.53
258
279
92. 47
100.00
repairs Frequency
Cumulative Cumulative
Percent Frequency Percent
s
279
100.00
279
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
107
172
38.35
61. 65
107
279
38.35
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
114
165
40. 86
59.14
114
279
40. 86
100.00
sched id
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
F505
FTP bnl
142
137
50. 90
49.10
142
279
50. 90
100.00
/camwheels/cam/epaco2ch4/oplRatio SR.sas
G3-9
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bnl) 10
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
R 142 50.90 142 50.90
S 137 49.10 279 100.00
Cumulative Cumulative
soakcat Frequency Percent Frequency Percent
GE60 137 49.10 137 49.10
None 142 50.90 279 100.00
Cumulative Cumulative
aeon Frequency Percent Frequency Percent
0 232 83.15 232 83.15
1 47 16.85 279 100.00
Cumulative Cumulative
tempcat Frequency Percent Frequency Percent
15
1
0.36
1
0.36
25
229
CO
K)
O
CO
230
CO
K)
35
49
17.56
279
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-10
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bnl)
11
The FREQ Procedure
altcat
L
Frequency
279
Percent
100.00
279
15:26 Friday, December 7, 2001
Cumulative Cumulative
Frequency Percent
100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
279
100.00
279
100.00
oxygenate Frequency
None 279
Cumulative Cumulative
Percent Frequency Percent
100.00
279
100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R
279
100.00
279
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-11
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bn3)
The GLM Procedure
Class Level Information
12
15:26 Friday, December 7, 2001
Class Levels Values
msid_cause 57 1B3EJ46X0TN27942
~ 1B7GL23X6VS207 65
1FALP52U5TG19515
1FBJS31H4MHA6371
1FTEF15N3TLA6204
1G1JC124 6TM13549
1G4CU52155H63470
1GCGC24K6PE21849
1GMDX0 6E4VD13010
1GNGK2 6JXVJ3 67 62
1P4GP44R0TB4918 6
2B5WB35Z0RK54427
2GCGC29K2P110 667
3B7KF23W0SM16419
4T1CG12K8TU71331
sched_id 2 F505 FTP_bn3
aeon 2 0 1
oxyind 1 R
altcat 1 L
1B4GP44R7VB402 60
1B7GL23X8TS64978
1FALP53S2VG11918
1FMCU22X2TUC9731
1FTEF15Y7TLB9434
1G2NE52T3VM51809
1G4NJ52MXTC43690
1GCGC3 4 J 6VE13736
1GNDT13W07227189
1MELM50U7TG64 654
1P4GP44R5VB43200
2CNBE18 69T693495
2P4GH2536R238607
3B7KF23Z8VG82444
1B4GP54L1TB47731
1B7HC1643T5 65407
1FALP66L6SK15994
1FMDA11U9VZA2 50 6
1FTHE24H2PHA220 6
1G2WJ52M1TF2048 6
1G82G5281S215558
1GCGK24K6SE11319
1GNDT13W95224989
1MELM53S6VG610 64
2B4GP4431TR82162
2G4WB52L9S145158
2P4GH2537SR19053
3B7KF23ZXVM55883
1B7GL23X6V5207 65
1FALP1391VW1758 6
1FASP15J1SW617 65
1FTEF1547TLB9434
1FTJE34Y8SHB9014
1G4AG55M85 650 694
1G8ZF5284SZ30318
1GK0M19W9VB52228
1GNFK16R9VJ38 687
1N6SD11S2SC45944
2B4GP4534TR51823
2G4WS52M1V141616
2P4GP2437VR34032
4T1BF22K2VU90051
Number of observations 279
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-12
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bn3)
13
Dependent Variable: uch4_co2
Source
Model
Error
Corrected Total
15:26 Friday, December 7, 2001
The GLM Procedure
Sum of
DF Squares
61 2081701.217
217 329300.557
278 2411001.774
Mean Square
34126.249
1517.514
F Value
22. 49
Pr > F
<.0001
R-Square
0.863418
Coeff Var
37. 40234
Root MSE
38.95528
uch4_co2 Mean
104.1520
Source
msid_cause
sched_id
rvp
aeon
avgtotpower
temp
oxyind
altcat
DF Type I SS
56 2050094.722
1 23072.385
1 2067.509
1 4771.708
1 1228.064
1 466.828
0 0.000
0 0.000
Mean Square
36608.834
23072.385
2067.509
4771.708
1228.064
466.828
F Value
24.12
15.20
1.36
3.14
0. 81
0.31
Pr > F
<.0001
0.0001
0.2444
0. 0776
0.3693
0.5797
Source
msid_cause
sched id
DF
56
1
Type II SS
1554176.147
23046.884
Mean Square
27753.145
23046.884
F Value
18.29
15.19
Pr > F
<.0001
0.0001
/camwheels/cam/epaco2ch4/oplRatio SR.sas
G3-13
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bn3)
The GLM Procedure
14
15:26 Friday, December 7, 2001
Dependent Variable: uch4_co2
Source
rvp
aeon
avgtotpower
temp
oxyind
altcat
DF Type II SS
1 3950.886
1 2094.076
1 1438.665
1 466.828
0 0.000
0 0.000
Mean Square
3950.886
2094.076
1438.665
466.828
F Value
Pr > F
2. 60
0
1081
1.38
0
2414
0. 95
0
3313
0.31
0
5797
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept 666.4849892
msid_cause 1B3EJ46X0TN27942 43.5776424
msid_cause 1B4GP44R7VB40260 -13.0408227
msid_cause 1B4GP54L1TB47731 -4.1020053
msid_cause 1B7GL23X6V5207 65 58.1873025
msid_cause 1B7GL23X6VS207 65 44.6422725
msid_cause 1B7GL23X8TS64978 63.4046223
msid_cause 1B7HC1643T565407 68.6906785
msid_cause 1FALP1391VW17586 -37.6909593
msid_cause 1FALP52U5TG19515 -4.6353055
msid_cause 1FALP53S2VG11918 6.0717561
msid_cause 1FALP66L6SK15994 -20.9652191
msid_cause 1FASP15J1SW61765 23.9365285
msid~cause 1FBJS31H4MHA6371 140.0229686
msid_cause 1FMCU22X2TUC9731 -12.7704083
msid_cause 1FMDA11U9VZA250 6 10.8286192
msid_cause 1FTEF1547TLB9434 14.4052430
msid cause 1FTEF15N3TLA6204 44.1385604
428.9027659
40.9435382
34.1940848
31.8759840
32.1178550
40.6603756
32.6728609
35.4897411
40.5421137
40.3006073
32.3365982
40.4802343
34.3698334
40.3130185
40.7230137
34.3616742
41. 0580602
34. 9923127
1.55
1.06
-0.38
-0.13
1. 81
1.10
1. 94
1. 94
-0. 93
-0.12
0.19
-0.52
0.70
3. 47
-0.31
0.32
0.35
1.26
0.1217
0.2884
0.7033
0.8977
0. 0714
0.2735
0.0536
0.0542
0.3536
0.9085
0.8512
0.6050
0.4869
0. 0006
0.7541
0.7530
0.7260
0.2085
/camwheels/cam/epaco2ch4/oplRatio SR.sas
G3-14
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bn3) 15
15:26 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1FTEF15Y7TLB9434
22.9432462 B
39.7924726
0.58
0.5648
msid
cause
1FTHE24H2PHA220 6
211.5008665 B
38.3661527
5.51
<.0001
msid
cause
1FTJE34Y8SHB9014
379.6915601 B
35.3265796
10.75
<.0001
msid
cause
1G1JC124 6TM13549
29.1699086 B
40.5254213
0.72
0. 4724
msid
cause
1G2NE52T3VM51809
-18.8661941 B
40.2761123
-0. 47
0.6400
msid
cause
1G2WJ52M1TF2048 6
0.7364068 B
40.2697947
0. 02
0.9854
msid
cause
1G4AG55M85 650 694
-1.1206489 B
32.2649517
1
o
o
CO
0.9723
msid
cause
1G4CU52155H63470
-11.9985434 B
40.4082179
1
o
CO
o
0.7668
msid
cause
1G4NJ52MXTC43690
-19.4285882 B
40.5308664
CO
o
1
0.6322
msid
cause
1G82G5281S215558
38.2545950 B
33.2843924
1.15
0.2517
msid
cause
1G8ZF5284SZ30318
36.9283877 B
31.5809297
1.17
0.2436
msid
cause
1GCGC24K6PE21849
57.4140895 B
41.1064052
1. 40
0.1639
msid
cause
1GCGC3 4 J 6VE13736
86.5646557 B
38.7685174
2.23
0.0266
msid
cause
1GCGK24K6SE11319
180.9500743 B
39.1112347
4. 63
<.0001
msid
cause
1GK0M19W9VB52228
54.4650470 B
42.1275050
1.29
0.1974
msid
cause
1GMDX0 6E4VD13010
-14.7834394 B
32.3880465
o
1
0.6485
msid
cause
1GNDT13W07227189
6.1434651 B
33.9251482
0.18
0.8565
msid
cause
1GNDT13W95224989
27.7436771 B
41.0433198
CO
O
0.4998
msid
cause
1GNFK16R9VJ38 687
-2.0798902 B
43.2251919
LO
O
O
1
0.9617
msid
cause
1GNGK2 6JXVJ3 67 62
36.1992627 B
40.3888437
o
O
0.3711
msid
cause
1MELM50U7TG64 654
1.3870314 B
40.2569361
O
O
CO
0.9725
msid
cause
1MELM53S6VG610 64
-3.7839980 B
40.4834323
1
o
o
0.9256
msid
cause
1N6SD11S2SC45944
6.9326087 B
40.2560759
0.17
0.8634
msid
cause
1P4GP44R0TB4918 6
-2.6288896 B
40.5237265
O
O
1
0.9483
msid
cause
1P4GP44R5VB43200
-0.4486623 B
40.3221406
1
O
o
1—1
0.9911
msid
cause
2B4GP4431TR82162
-6.2799717 B
32.3206955
1
o
1—1
0.8461
msid
cause
2B4GP4534TR51823
-2.3817362 B
32.3521393
-0. 07
0. 9414
msid
cause
2B5WB35Z0RK54427
101.3942846 B
38.5801762
2. 63
0.0092
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-15
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bn3)
Dependent Variable: uch4_co2
The GLM Procedure
16
15:26 Friday, December 7, 2001
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
sched_id
sched_id
rvp
aeon
aeon
avgtotpower
temp
oxyind
altcat
2CNBE18 69T693495
2G4WB52L9S145158
2G4WS52M1V141616
2GCGC29K2P110 667
2P4GH2536R238607
2P4GH2537SR19053
2P4GP2437VR34032
3B7KF23W0SM16419
3B7KF23Z8VG82444
3B7KF23ZXVM55883
4T1BF22K2VU90051
4T1CG12K8TU71331
F505
FTP bn3
-17.0179543
-13.0416997
-9.2236445
104.9072858
-13.0071813
-0.9871779
-13.0111936
114.6117242
38.5020267
28.0862520
-37.2594248
0.0000000
-18.6991781
0.0000000
-73.6944792
26.5251041
0.0000000
-2.6942374
0.6309093
0.0000000
0.0000000
40.3817877
32.2861665
40.4135662
38.5453847
40.2519092
40.3649449
40.4310053
42.4093924
39.2868887
42.4359565
31.2179144
4.7982489
45.6724256
22.5801731
2.7670842
1.1375085
-0. 42
-0. 40
-0.23
2.72
-0.32
-0. 02
-0.32
2.70
0. 98
0. 66
-1.19
-3. 90
-1. 61
1.17
-0. 97
0.55
0.6739
0.6867
0.8197
0. 0070
0.7469
0.9805
0.7479
0.0074
0.3282
0.5088
0.2340
0.0001
0.1081
0.2414
0.3313
0.5797
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-16
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bn3) 17
15:26 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
172
107
4. 0226744
1.3792141
3.2000000
10. 0000000
hclimit
165
114
0.6416364
0.1921105
0.4100000
0. 8000000
disp
279
0
4.5031948
1.6684023
1.6715831
8.3906916
testwght
279
0
5087.52
1656.85
2581.00
9400.00
road hp
279
0
14.3379928
5.9840547
6.1000000
24.0000000
odometer
275
4
47556.57
36383.09
4829.00
169335.00
Pi
279
0
0.3382733
0.000335146
0.3379447
0.3386139
p2
279
0
0.0474769
0.000047038
0.0474308
0. 0475248
p3
279
0
0
0
0
0
p4
279
0
0
0
0
0
avgtotpower
279
0
11.7456414
4.1890324
5.7576284
20.0322887
temp
279
0
80.8157706
7.4140520
62.7000000
101.2000000
rvp
279
0
8.9505376
0.0864450
8.8000000
9.0000000
mpg
279
0
18.5565591
5.9616147
10.6600000
37.6300000
co2
279
0
518.0267706
145.9504413
233.4230000
822.7690000
gco2
279
0
1860.20
524.0995023
838.2284770
2954.44
gco2 s
279
0
3.6871582
1.0388560
1.6631517
5.8503854
ch4
279
0
0.0591864
0.0603724
0.0010000
0.3810000
gch4
279
0
0.2125352
0.2167944
0.0035909
1.3681816
mgch4 s
279
0
0.4212033
0. 4294315
0.0070970
2.6949702
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-17
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bn3) 18
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
279
100.00
279
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
123
O
123
44. 09
Fed LDT1
6
2.15
129
46.24
Fed LDT2
69
24.73
198
70. 97
Fed LDT3
12
4.30
210
75.27
Fed LDT4
2
0.72
212
75. 99
Fed LDV
67
24. 01
279
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
12
4.30
12
4.30
1993
37
13.26
49
17.56
1995
77
27. 60
126
45.16
1996
55
19.71
181
64. 87
1997
83
29. 75
264
94. 62
1998
15
5.38
279
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-18
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bn3) 19
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
PFI
253
90. 68
253
90. 68
TBI
26
9. 32
279
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
231
82. 80
231
82. 80
OX3W
8
2. 87
239
85. 66
OXID
40
14.34
279
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
31
11.11
31
11.11
6
131
46. 95
162
58. 06
8
105
37. 63
267
95.70
10
12
4.30
279
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
2
0.72
2
0.72
CHARGED
7
2.51
9
3.23
NATURAL
270
96. 77
279
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-19
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bn3) 20
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
tran_type Frequency Percent Frequency Percent
AUTO 258 92.47 258 92.47
MANUAL 21 7.53 279 100.00
Cumulative Cumulative
repairs Frequency Percent Frequency Percent
s
279
100.00
279
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
107
172
38.35
61. 65
107
279
38.35
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
114 40.86 114 40.86
0 165 59.14 279 100.00
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
F505 142 50.90 142 50.90
FTP_bn3 137 49.10 279 100.00
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-20
-------
Uch4_co2 Start VS. Run (HR505 VS. FTP_bn3) 21
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
R 142 50.90 142 50.90
S 137 49.10 279 100.00
Cumulative Cumulative
soakcat Frequency Percent Frequency Percent
LT60 137 49.10 137 49.10
None 142 50.90 279 100.00
Cumulative Cumulative
aeon Frequency Percent Frequency Percent
0 232 83.15 232 83.15
1 47 16.85 279 100.00
Cumulative Cumulative
tempcat Frequency Percent Frequency Percent
15
2
0.72
2
0.72
25
228
81.72
230
CO
K)
35
49
17.56
279
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-21
-------
Uch4 co2 Start VS. Run (HR505 VS. FTP bn3)
22
The FREQ Procedure
altcat
L
Frequency
279
Percent
100.00
279
15:26 Friday, December 7, 2001
Cumulative Cumulative
Frequency Percent
100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
279
100.00
279
100.00
oxygenate Frequency
None 279
Cumulative Cumulative
Percent Frequency Percent
100.00
279
100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R
279
100.00
279
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-22
-------
Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3)
The GLM Procedure
Class Level Information
23
15:26 Friday, December 7, 2001
Class Levels Values
msid_cause 57 1B3EJ46X0TN27942
~ 1B7GL23X6VS207 65
1FALP52U5TG19515
1FBJS31H4MHA6371
1FTEF15N3TLA6204
1G1JC124 6TM13549
1G4CU52155H63470
1GCGC24K6PE21849
1GMDX0 6E4VD13010
1GNGK2 6JXVJ3 67 62
1P4GP44R0TB4918 6
2B5WB35Z0RK54427
2GCGC29K2P110 667
3B7KF23W0SM16419
4T1CG12K8TU71331
sched_id 2 FTP_bnl FTP_bn3
aeon 2 0 1
oxyind 1 R
altcat 1 L
1B4GP44R7VB402 60
1B7GL23X8TS64978
1FALP53S2VG11918
1FMCU22X2TUC9731
1FTEF15Y7TLB9434
1G2NE52T3VM51809
1G4NJ52MXTC43690
1GCGC3 4 J 6VE13736
1GNDT13W07227189
1MELM50U7TG64 654
1P4GP44R5VB43200
2CNBE18 69T693495
2P4GH2536R238607
3B7KF23Z8VG82444
1B4GP54L1TB47731
1B7HC1643T5 65407
1FALP66L6SK15994
1FMDA11U9VZA2 50 6
1FTHE24H2PHA220 6
1G2WJ52M1TF2048 6
1G82G5281S215558
1GCGK24K6SE11319
1GNDT13W95224989
1MELM53S6VG610 64
2B4GP4431TR82162
2G4WB52L9S145158
2P4GH2537SR19053
3B7KF23ZXVM55883
1B7GL23X6V5207 65
1FALP1391VW1758 6
1FASP15J1SW617 65
1FTEF1547TLB9434
1FTJE34Y8SHB9014
1G4AG55M85 650 694
1G8ZF5284SZ30318
1GK0M19W9VB52228
1GNFK16R9VJ38 687
1N6SD11S2SC45944
2B4GP4534TR51823
2G4WS52M1V141616
2P4GP2437VR34032
4T1BF22K2VU90051
Number of observations 274
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-23
-------
Uch4 co2 Soak Time (FTP bnl VS. FTP bn3)
Dependent Variable: uch4_co2
Source
Model
Error
Corrected Total
DF
61
212
273
24
15:26 Friday, December 7, 2001
The GLM Procedure
Sum of
Squares
2464477.692
408802.781
2873280.473
Mean Square
40401.274
1928.315
F Value
20. 95
Pr > F
<.0001
R-Square
0. 857723
Coeff Var
30.58872
Root MSE
43.91258
uch4_co2 Mean
143.5581
Source
msid_cause
sched_id
avgtotpower
rvp
aeon
temp
oxyind
altcat
DF Type I SS
56 2206140.570
1 242617.856
1 9457.389
1 253.758
1 5895.589
1 112.530
0 0.000
0 0.000
Mean Square
39395.367
242617.856
9457.389
253.758
5895.589
112.530
F Value
20. 43
125.82
4. 90
0.13
3.06
0.06
Pr > F
<.0001
<.0001
0. 0279
7171
0.0818
0.8093
0
Source
msid_cause
sched id
DF
56
1
Type II SS
1405059.368
240611.101
Mean Square
25090.346
240611.101
F Value
13. 01
124.78
Pr > F
<.0001
<.0001
/camwheels/cam/epaco2ch4/oplRatio SR.sas
G3-24
-------
Uch4 co2 Soak Time (FTP bnl VS. FTP bn3)
25
15:26 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Source
avgtotpower
rvp
aeon
temp
oxyind
altcat
DF
1
1
1
1
0
0
Type II SS
8357.311
1601.223
1227.789
112.530
0. 000
0. 000
Mean Square
8357.311
1601.223
1227.789
112.530
F Value
Pr > F
4.33
0
0386
o
CO
CO
0
3632
0. 64
0
4258
0.06
0
8093
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid cause
1B3EJ4 6X0TN27942
1B4GP44R7VB402 60
1B4GP54L1TB47731
1B7GL23X6V5207 65
1B7GL23X6VS207 65
1B7GL23X8TS64978
1B7HC1643T5 65407
1FALP1391VW1758 6
1FALP52U5TG19515
1FALP53S2VG11918
1FALP66L6SK15994
1FASP15J1SW617 65
1FBJS31H4MHA6371
1FMCU22X2TUC9731
1FMDA11U9VZA2 50 6
1FTEF1547TLB9434
1FTEF15N3TLA6204
390.8927146
53.7702202
-3.3766991
-6.0568512
47.3902190
42.5922759
61.7076474
52. 0722091
-29.8384536
22. 8183763
30.7457669
-0.8139041
38.0557071
60.3500132
-18.0387545
4.4925366
-13.2695170
23.0369231
535.
46.
38.
36.
36.
45.
36.
40.
45.
45.
36.
45.
38.
45.
46.
38.
46.
39.
5800699
5211036
5636401
9858157
8893779
8849996
8294673
0574496
7741616
5259514
4513470
8071761
7530589
3289301
0598901
7475854
3193619
5067314
0.73
1.16
-0. 09
-0.16
1.28
0. 93
1. 68
1.30
-0. 65
0.50
0. 84
-0. 02
0. 98
1.33
-0.39
0.12
-0.29
0.58
0.4663
0.2491
0.9303
0. 8701
0.2003
0.3543
0.0953
0.1950
0.5152
0.6167
0.3999
0.9858
0.3272
0.1845
0.6957
0.9078
0.7748
0.5604
/camwheels/cam/epaco2ch4/oplRatio SR.sas
G3-25
-------
Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 2 6
15:26 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid
cause
1FTEF15Y7TLB9434
7.1244814 B
44.8187707
0.16
0.8739
msid
cause
1FTHE24H2PHA220 6
171.9999286 B
43.3158413
3. 97
<.0001
msid
cause
1FTJE34Y8SHB9014
325.9816810 B
40.3380078
8. 08
<.0001
msid
cause
1G1JC124 6TM13549
52.0399827 B
45.7263246
1.14
0.2564
msid
cause
1G2NE52T3VM51809
-6.7226240 B
45.4686009
1
o
1—1
en
0. 8826
msid
cause
1G2WJ52M1TF2048 6
32.0719851 B
45.4441558
0.71
0.4811
msid
cause
1G4AG55M85 650 694
11.3034913 B
36.3928396
0.31
0.7564
msid
cause
1G4CU52155H63470
-0.4342817 B
45.8922350
1
o
o
1—1
0.9925
msid
cause
1G4NJ52MXTC43690
25.9526254 B
45. 8339071
0.57
0.5718
msid
cause
1G82G5281S215558
57.4176577 B
38.8871144
1. 48
0.1413
msid
cause
1G8ZF5284SZ30318
72.9138705 B
35.6193176
2. 05
0.0419
msid
cause
1GCGC24K6PE21849
43.9683250 B
46.3831598
0. 95
0.3442
msid
cause
1GCGC3 4 J 6VE13736
41.5725311 B
43.7451917
0. 95
0.3430
msid
cause
1GCGK24K6SE11319
145.0890419 B
44.9778193
3.23
0. 0015
msid
cause
1GK0M19W9VB52228
17.1023392 B
47.7949871
0.36
0.7208
msid
cause
1GMDX0 6E4VD13010
-5.4251954 B
36.5214355
1
o
1—1
en
0. 8821
msid
cause
1GNDT13W07227189
-20.7886826 B
39.3003284
1
o
(_n
CO
0.5974
msid
cause
1GNDT13W95224989
15.8205697 B
46.3427532
0.34
0.7332
msid
cause
1GNFK16R9VJ38 687
-42.6774105 B
48.7944905
-0. 87
0.3828
msid
cause
1GNGK2 6JXVJ3 67 62
-13.1649378 B
45. 4165387
-0.29
0.7722
msid
cause
1MELM50U7TG64 654
27.5496036 B
45. 4563853
0. 61
0.5451
msid
cause
1MELM53S6VG610 64
12.1687713 B
45. 8240047
0.27
0.7908
msid
cause
1N6SD11S2SC45944
31.6014168 B
45.5240771
0. 69
0. 4883
msid
cause
1P4GP44R0TB4918 6
0.5400381 B
45.7985590
0. 01
0.990 6
msid
cause
1P4GP44R5VB43200
4.8322245 B
45.5359182
0.11
0. 9156
msid
cause
2B4GP4431TR82162
6.1571017 B
36.4542606
0.17
0.8660
msid
cause
2B4GP4534TR51823
14.0900338 B
36.5309327
0.39
0.7001
msid
cause
2B5WB35Z0RK54427
56.2261445 B
43.3678034
1.30
0.1962
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-26
-------
Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 27
15:26 Friday, December 7, 2001
The GLM Procedure
snt Variable:
: uch4 co2
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid cause
2CNBE18 69T693495
-16.8135971 B
45.6441928
-0.37
0.7130
msid cause
2G4WB52L9S145158
1.6582170 B
36.4283886
LO
O
o
0.9637
msid cause
2G4WS52M1V141616
20.2974464 B
45.7345612
0. 44
0.6576
msid cause
2GCGC29K2P110 667
44.8704194 B
43.3551833
1—1
o
CO
0.3019
msid cause
2P4GH2536R238607
0.5097851 B
45. 4440308
o
o
1—1
0. 9911
msid cause
2P4GH2537SR19053
-6.5554202 B
45.8577712
1
o
1—1
0.8865
msid cause
2P4GP2437VR34032
-1.2335744 B
45.7281914
1
o
o
CO
0.9785
msid cause
3B7KF23W0SM16419
67.1147998 B
47.7059059
1. 41
0.1609
msid cause
3B7KF23Z8VG82444
-25.7287009 B
44.1579673
CO
LO
o
1
0.5607
msid cause
3B7KF23ZXVM55883
-2.8581380 B
47. 9520372
O
O
1
0.9525
msid cause
4T1BF22K2VU90051
-45.3029749 B
35.2162153
-1.29
0.1997
msid cause
4T1CG12K8TU71331
0.0000000 B
sched id
FTP bnl
59.6617740 B
5.3410584
11.17
<.0001
sched id
FTP bn3
0.0000000 B
avgtotpower
6. 4722148
3.1089135
2. 08
0.0386
rvp
-50.3421574
55.2452491
1
o
1—1
0.3632
aeon
0
24.1106705 B
30.2159645
O
CO
O
0. 4258
aeon
1
0.0000000 B
temp
0.3794809
1.5708893
0.24
0. 8093
oxyind
R
0.0000000 B
altcat
L
0.0000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-27
-------
Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 28
15:26 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
168
106
4.0380952
1.3919275
3.2000000
10. 0000000
hclimit
162
112
0.6411111
0.1922214
0.4100000
0. 8000000
disp
274
0
4.5144945
1.6698167
1.6715831
8.3906916
testwght
274
0
5109.22
1677.36
2581.00
9400.00
road hp
274
0
14.3766423
5.9946040
6.1000000
24.0000000
odometer
274
0
47207.50
35713.29
4829.00
169311.00
Pi
274
0
0.3386139
0
0.3386139
0.3386139
p2
274
0
0. 0475248
0
0. 0475248
0. 0475248
p3
274
0
0
0
0
0
p4
274
0
0
0
0
0
avgtotpower
274
0
11. 8055921
4.2149101
5.7759930
20.0322887
temp
274
0
79.9996350
7.2887564
62.7000000
99.2000000
rvp
274
0
8.9503650
0.0865489
8.8000000
9.0000000
mpg
274
0
17.3525182
5.8710895
8.9300000
37.6300000
co2
274
0
548.2534161
157.0087316
233.4230000
909.0030000
gco2
274
0
1968.79
563.8227167
838.2284770
3264.26
gco2 s
274
0
3.9063358
1.1186959
1.6631517
6. 4766965
ch4
274
0
0.0864526
0.0767496
0.0040000
0. 4640000
gch4
274
0
0.3104535
0.2756100
0.0143641
1.6662369
mgch4 s
274
0
0.6158688
0.5455300
0. 0285079
3.2728571
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-28
-------
Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 29
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
274
100.00
274
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
122
44.53
122
44.53
Fed LDT1
6
2.19
128
46. 72
Fed LDT2
66
24. 09
194
70. 80
Fed LDT3
12
4.38
206
75.18
Fed LDT4
2
0.73
208
75. 91
Fed LDV
66
24. 09
274
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
12
4.38
12
4.38
1993
36
1—1
CO
1—1
48
17.52
1995
76
27.74
124
45.26
1996
54
19.71
178
64.96
1997
82
29. 93
260
94. 89
1998
14
5.11
274
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-29
-------
Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 30
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fi_type Frequency Percent Frequency Percent
PFI
248
90.51
248
90.51
TBI
26
9.49
274
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
226
82. 48
226
82. 48
OX3W
8
2. 92
234
85. 40
OXID
40
14. 60
274
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
4
30
10. 95
30
10. 95
6
128
46. 72
158
57. 66
8
104
37. 96
2 62
95. 62
10
12
4.38
274
100.00
Cumulative
Cumulative
aspirated
Frequency
Percent
Frequency
Percent
2
0.73
2
0.73
CHARGED
6
2.19
8
2. 92
NATURAL
266
97. 08
274
100.00
/camwheels/cam/epaco2ch4/oplRatio_SR. sas
G3-30
-------
Uch4 co2 Soak Time (FTP bnl VS. FTP bn3)
31
15:26 Friday, December 7, 2001
The FREQ Procedure
tran_type Frequency
Percent
Cumulative Cumulative
Frequency Percent
AUTO
MANUAL
254
20
92.70
7.30
254
274
92.70
100.00
repairs Frequency
Cumulative Cumulative
Percent Frequency Percent
s
274
100.00
274
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
106
168
38. 69
61.31
106
274
38. 69
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
112
162
40. 88
59.12
112
274
40. 88
100.00
sched id
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
FTP_bnl
FTP bn3
137
137
50. 00
50. 00
137
274
50. 00
100.00
/camwheels/cam/epaco2ch4/oplRatio SR.sas
G3-31
-------
Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 32
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
274
100.00
274
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
137
137
50. 00
50. 00
137
274
50. 00
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
230
44
83. 94
16.06
230
274
83. 94
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
15
25
35
3
227
44
1. 09
82. 85
16.06
3
230
274
1. 09
83. 94
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
L 274 100.00 274 100.00
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-32
-------
Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 33
15:26 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
9 274 100.00 274 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 274 100.00 274 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 274 100.00 274 100.00
/camwheels/cam/epaco2ch4/oplRatio_SR.sas
G3-33
-------
Appendix H1
Dependence of gCH4/gC02 for Diesel Vehicles on Vehicle
Characteristics
-------
1
11:59 Saturday, December 8, 2001
All Cycles, 25C, AC off, not High Altitude, Diesel fuel
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 14 ART-CD FTP FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 NYCC SC03 SCC12
ST01 USO 6
fedcat 2 Fed_HDV Fed_LDT4
model_yr 6 1991 1995 1997 1998 1999 2000
hclimitcat 2 D_0.8 D_1.3
cat_type 2 NONE OXID
aspirated 2 CHARGED TURBO
tran_type 2 AUTO MANUAL
cylinder 2 6 8
Number of observations 157
NOTE: Due to missing values, only 152 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclratdies. sas
Hl-1
-------
All Cycles,
25C, AC off, not High Altitude, Diesel fuel
11:59 Saturday,
2
December 8, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Sum of
Source
DF
Squares
Mean Square
F Value
Pr
> F
Model
27
14933
.90232
553.10749
1—1
CO
1—1
0.
1615
Error
124
52309
. 72644
421.85263
Corrected Total
151
67243
.62876
R-Square
Coef f
Var
Root
MSE uch4 co2
Mean
0.222087
229.
4817
20.53905 8.950192
Source
DF
Type I SS
Mean Square
F Value
Pr
> F
sched id
13
5958.
075659
458.313512
1. 09
0.
3768
model yr
5
3412.
050062
682.410012
1. 62
0.
1602
tran type
1
4727.
336444
4727.336444
11.21
0.
0011
odometer
1
3.
815769
3.815769
o
o
1—1
0.
9244
avgtotpower
1
15.
565994
15.565994
0. 04
0.
8480
cylinder
1
724.
566346
724.566346
1.72
0.
1924
disp
1
9.
997443
9. 997443
o
o
K)
0.
8779
road hp
1
1.
243523
1.243523
O
O
O
0.
9568
fedcat
1
0.
629289
0.629289
O
o
o
0.
9693
testwght
1
80.
498378
80.498378
0.19
0.
6630
zippy
1
0.
123411
0.123411
o
o
o
0.
9864
cat type
0
0.
000000
aspirated
0
0.
000000
hclimitcat
0
0.
000000
/camwheels/cam/epaco2ch4/vclratdies.sas
Hl-2
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 3
11:59 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Source
DF
Type II SS
Mean Square
F Value
Pr > F
sched id
13
3486.321349
268.178565
0. 64
0. 8201
model yr
3
3540.586924
1180.195641
2. 80
0. 0429
tran type
1
585.634547
585.634547
1.39
0.2410
odometer
1
80.356550
80.356550
0.19
0.6633
avgtotpower
1
44.530279
44.530279
0.11
0.7458
cylinder
1
19.589198
19.589198
LO
o
o
0.8297
disp
1
18.964038
18.964038
o
o
0.8324
road hp
1
9.293576
9.293576
o
o
K)
0. 8822
fedcat
1
5.049130
5.049130
o
o
1—1
0.9131
testwght
1
2.897846
2.897846
o
o
1—1
0.9341
zippy
1
0.123411
0.123411
o
o
o
0.9864
cat type
0
0.000000
aspirated
0
0.000000
hclimitcat
0
0.000000
Standard
Parameter
Estimate
Error t
Value
Pr > |t|
Intercept
3303.693348 B
15407.99737
0.21
0.8306
sched id
ART-CD
13.764053 B
40.22371
1
o
CO
0.7328
sched id
FTP
-9.293294 B
42.93064
1
o
K)
K)
0.8290
sched id
FTP bnl
¦10. 012405 B
38.56888
-0.26
0.7956
sched id
FTP bn2
-5.088118 B
48.04964
1
o
1—1
1—1
0.9158
sched id
FTP bn3
¦11.133644 B
38.65805
1
o
K)
0.7738
sched id
FWY-E
¦12.695421 B
32.58886
1
O
CO
0.6975
sched id
FWY-G
¦17.605060 B
50. 06164
1
o
CO
en
0.7257
sched id
FWY-HI
0.745146 B
10.17874
0. 07
0.9418
sched id
LA92
¦12.380334 B
35.23868
1
O
CO
en
0.7259
/camwheels/cam/epaco2ch4/vclratdies. sas
Hl-3
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 4
11:59 Saturday, December 8, 2001
Dependent Variable: uch4_co2
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched id
NYCC
-15.586340 B
53.67518
-0
29
0
sched id
SC03
-7.876114 B
41.34670
-0
19
0
sched id
SCC12
12.235171 B
53.07611
0
23
0
sched id
ST01
-0.122864 B
41.47676
-0
00
0
sched id
USO 6
0.000000 B
model yr
1991
24.467872 B
66.38641
0
37
0
model yr
1995
-329.258255 B
1746.97310
-0
19
0
model yr
1997
41.250998 B
30.89191
1
34
0
model yr
1998
47.619204 B
17.40000
2
74
0
model yr
1999
28.207893 B
11.23212
2
51
0
model yr
2000
0.000000 B
tran type
AUTO
-35.226415 B
29.89754
-1
18
0
tran type
MANUAL
0.000000 B
odometer
-0.000101
0. 00023
-0
44
0
avgtotpower
-0.473387
1.45703
-0
32
0
cylinder
6
-634.171268 B
2942.92107
-0
22
0
cylinder
8
0.000000 B
disp
-446.440129
2105.61126
-0
21
0
road hp
-1.181629
7.96105
-0
15
0
fedcat
Fed HDV
-3.319449 B
30.34158
-0
11
0
fedcat
Fed LDT4
0.000000 B
testwght
0.001175
0.01417
0
08
0
zippy
-2.210834 B
129.25850
-0
02
0
cat type
NONE
0.000000 B
cat type
OXID
0.000000 B
aspirated
CHARGED
0.000000 B
aspirated
TURBO
0.000000 B
hclimitcat
D 0.8
0.000000 B
/camwheels/cam/epaco2ch4/vclratdies.sas
Hl-4
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 5
11:59 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Standard
Parameter Estimate Error t Value Pr > |t|
hclimitcat D_1.3 0.000000 B . .
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclratdies.sas
Hl-5
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 6
11:59 Saturday, December 8, 2001
The GLM Procedure
Class Level Information
Class Levels Values
sched_id 16 ART-CD FTP FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 LSP1 LSP2 NYCC SC03
SCC12 ST01 USO6
model_yr 6 1991 1995 1997 1998 1999 2000
tran_type 2 AUTO MANUAL
Number of observations 157
NOTE: Due to missing values, only 155 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclratdies. sas
Hl-6
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 7
11:59 Saturday, December 8, 2001
Dependent Variable: uch4_co2
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
21 17988.02223
133 53146.16659
154 71134.18882
Mean Square
856.57249
399.59524
F Value
2.14
Pr > F
0.0049
R-Square
0.252874
Coeff Var
209.7469
Root MSE
19.98988
uch4_co2 Mean
9.530478
Source
sched_id
tran_type
model yr
DF
15
1
5
Type I SS
9848.635719
3492.613887
4646.772618
Mean Square
656.575715
3492.613887
929.354524
F Value
1. 64
8.74
2.33
Pr > F
0. 0706
0.0037
0.0462
Source
sched_id
tran_type
model yr
DF
15
1
5
Type II SS
5078.649363
4727.336444
4646.772618
Mean Square
338.576624
4727.336444
929.354524
F Value
0. 85
11. 83
2.33
Pr > F
0.6238
0.0008
0.0462
/camwheels/cam/epaco2ch4/vclratdies.sas
Hl-7
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 8
11:59 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
Intercept
0.78472158 B
10.47085347
0. 07
0.9404
sched id
ART-CD
0.78378858 B
10.10101095
0. 08
0. 9383
sched id
FTP
3.53436650 B
8.89060231
0. 40
0.6916
sched id
FTP bnl
1.31435120 B
9.02159368
0.15
0.8844
sched id
FTP bn2
9.37406632 B
9.02167724
1. 04
0.3007
sched id
FTP bn3
0.09751041 B
9.36651903
0. 01
0.9917
sched id
FWY-E
-0.98001314 B
10.09979681
1
o
1—1
o
0.9228
sched id
FWY-G
-0.17823042 B
9. 43334247
1
o
o
K)
0.9850
sched id
FWY-HI
-1.53452467 B
9.02157094
-0.17
0.8652
sched id
LA92
-2.28724275 B
9.56647396
-0.24
0.8114
sched id
LSP1
-16.50793460 B
23.57848518
-0.70
0.4851
sched id
LSP2
26.72570277 B
23.57848518
1.13
0.2591
sched id
NYCC
2.10507660 B
8.12916514
0.26
0.7961
sched id
SC03
3.24741373 B
11.15321545
0.29
0.7714
sched id
SCC12
26.72570277 B
18. 87186649
1. 42
0.1591
sched id
ST01
12.42586050 B
8. 09577669
1.53
0.1272
sched id
USO 6
0.00000000 B
tran type
AUTO
-24.61832110 B
7.15748304
1
CO
0.0008
tran type
MANUAL
0.00000000 B
model yr
1991
25.83239215 B
12.69357613
2. 04
0.0438
model yr
1995
23.29737453 B
11.77979094
1—1
CO
0.0500
model yr
1997
27.55249033 B
11.15760799
2. 47
0.0148
model yr
1998
41.06977788 B
12.98937332
3.16
0.0019
model yr
1999
27.00156438 B
10.31078531
2. 62
0.0098
model yr
2000
0.00000000 B
/camwheels/cam/epaco2ch4/vclratdies.sas
Hl-8
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 9
11:59 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: uch4_co2
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclratdies.sas
Hl-9
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 10
11:59 Saturday, December 8, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
152
3
10.1491896
2.2613775
3.3857611
15.7083011
hclimit
152
3
0. 8507336
0.1910466
0.2708609
1.3174704
disp
155
0
6.6434328
0.6672787
5. 8833169
7.3000000
testwght
152
3
7398.28
1127.80
4500.00
9900.00
road hp
152
3
16.1934211
2.3629500
11.6000000
18.5000000
odometer
155
0
37807.07
42180.85
427.0000000
144673.00
Pi
155
0
0.3225086
0.0983316
0
0. 4282051
p2
155
0
0.0499147
0. 0522880
0
0.2081967
p3
155
0
0.0047414
0.0099502
0
0. 0415973
p4
155
0
0.0014794
0.0035386
0
0.0149750
avgtotpower
152
3
15.9695869
11.6481741
4.3623343
52.7897796
temp
155
0
76.8709677
3.8065386
70. 0000000
84. 0000000
rvp
0
155
mpg
155
0
15.3255138
4.2008088
6.6500000
29.6500000
co2
155
0
721.9665419
240.3688966
343.5680000
1526.44
gco2
155
0
2820.83
2012.22
397.5230667
7686.65
gco2 s
155
0
4.1516495
2. 0213204
0.5536533
11. 4326011
ch4
155
0
0.0063935
0. 0116805
0.0010000
0.1170000
gch4
155
0
0.0199566
0. 0377976
0.0011796
0.3091612
uch4 co2
155
0
9.5304779
21.4920989
0.6551174
231.7611869
/camwheels/cam/epaco2ch4/vclratdies. sas
Hl-10
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 11
11:59 Saturday, December 8, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
155
100.00
155
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
106
68.39
106
68.39
Fed LDT4
49
31. 61
155
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
8
5.16
8
5.16
1995
14
9. 03
22
14.19
1997
28
18. 06
50
32.26
1998
7
4.52
57
36. 77
1999
91
58.71
148
cn
d^
CO
2000
7
4.52
155
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
147
d^
CO
d^
147
d^
CO
d^
PFI
8
5.16
155
100.00
/camwheels/cam/epaco2ch4/vclratdies. sas
Hl-11
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 12
11:59 Saturday, December 8, 2001
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
113
42
72. 90
27.10
113
155
72. 90
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
64
91
41.29
58.71
64
155
41.29
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
8
147
5.16
94. 84
8
155
5.16
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
131
24
84.52
15. 48
131
155
84.52
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
B
155
100.00
155
100.00
/camwheels/cam/epaco2ch4/vclratdies. sas
Hl-12
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 13
11:59 Saturday, December 8, 2001
The FREQ Procedure
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
3
1. 94
3
1. 94
0
152
98. 06
155
100.00
Cumulative
Cumulative
hchigh
Frequency
Percent
Frequency
Percent
3
1. 94
3
1. 94
0
152
98. 06
155
100.00
/camwheels/cam/epaco2ch4/vclratdies.sas
Hl-13
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 14
11:59 Saturday, December 8, 2001
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
ART-CD
8
5.
,16
8
5.
,16
FTP
13
8.
, 39
21
13.
, 55
FTP bnl
12
7.
, 74
33
21.
,29
FTP bn2
12
7.
, 74
45
29.
, 03
FTP bn3
10
6.
, 45
55
35.
, 48
FWY-E
8
5.
,16
63
40.
, 65
FWY-G
11
7.
, 10
74
47.
, 74
FWY-HI
11
7.
, 10
85
54.
, 84
LA92
9
5.
, 81
94
60.
, 65
LSP1
1
0.
, 65
95
61.
,29
LSP2
1
0.
, 65
96
61.
, 94
NYCC
21
13.
, 55
117
75.
, 48
SC03
5
3.
,23
122
78.
, 71
SCC12
2
1.
,29
124
80.
, 00
ST01
22
14.
, 19
146
94.
, 19
USO 6
9
5.
, 81
155
100.
, 00
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
155 100.00 155 100.00
/camwheels/cam/epaco2ch4/vclratdies.sas
Hl-14
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 15
11:59 Saturday, December 8, 2001
The FREQ Procedure
Cumulative Cumulative
soakcat Frequency Percent Frequency Percent
116
74. 84
116
74. 84
GE60
24
1—1
cn
CO
140
90.32
LT60
15
CO
(J)
155
100.00
Cumulative
Cumulative
aeon
Frequency
Percent
Frequency
Percent
0
155
100.00
155
100.00
Cumulative
Cumulative
tempcat
Frequency
Percent
Frequency
Percent
25
155
100.00
155
100.00
Cumulative
Cumulative
altcat
Frequency
Percent
Frequency
Percent
1
LO
O
1
LO
O
L
154
99. 35
155
100.00
Cumulative
Cumulative
rvpind
Frequency
Percent
Frequency
Percent
155
100.00
155
100.00
/camwheels/cam/epaco2ch4/vclratdies.
sas
Hl-15
-------
All Cycles, 25C, AC off, not High Altitude, Diesel fuel 16
11:59 Saturday, December 8, 2001
The FREQ Procedure
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 155 100.00 155 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 155 100.00 155 100.00
/camwheels/cam/epaco2ch4/vclratdies.sas
Hl-16
-------
Appendix H2
Dependence of gCH4/gC02 for Diesel Vehicles on Operating
Conditions
-------
1
16:18 Friday, December 7, 2001
Class
msid_cause
sched_id
aeon
oxyind
altcat
soakcat
Diesel uCH4_Co2 Operating Conditions
The GLM Procedure
Class Level Information
Levels Values
12 1B7KF2361YJ14 661 1B7KF2364XJ59546 1B7KF2368WJ23770 1B7KM2683MS23882
1FTHW2 5 F 6VEC3180 1FTNF20F7YEA2924 1FTSW31F2XEA85 68 1FTSW31FXXEF0317
1GCHK33F6SF00630 3B7KC2364XG23502 3B7KF2363XG14345 3B7KF23D1VG83674
13 ART-CD FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 NYCC SC03 SCC12 ST01
USO 6
1 0
1 D
1 L
3 GE60 LT60 None
Number of observations
149
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-1
-------
Diesel uCH4_Co2 Operating Conditions 2
16:18 Friday, December 7, 2001
The GLM Procedure
it Variable: uch4 co2
Sum of
Source
DF
Squares
Mean Square
F Value
Pr
> F
Model
26
16642.46117
640.09466
1. 62
0.
0433
Error
122
48285.33495
395.78143
Corrected Total
148
64927.79612
R-Square
Coef f
Var Root
MSE uch4 co2
Mean
0.256323
240.
3379 19.89426 8.277620
Source
DF
Type I SS
Mean Square
F Value
Pr
> F
msid cause
11
10302.68640
936.60785
2.37
0.
0110
sched id
12
4163.68792
346.97399
CO
CO
o
0.
5724
soakcat
1
1654.62319
1654.62319
1—1
CO
0.
0430
temp
1
517.34594
517.34594
1—1
CO
1—1
0.
2551
avgtotpower
1
4.11772
4.11772
o
o
1—1
0.
9189
aeon
0
0.00000
oxyind
0
0.00000
altcat
0
0.00000
Source
DF
Type II SS
Mean Square
F Value
Pr
> F
msid cause
11
8230.332480
748.212044
1. 89
0.
0468
sched id
11
5376.153948
488.741268
1.23
0.
2713
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-2
-------
Diesel
uCH4 Co2 Operating
Conditions
16:18
Friday,
December
The GLM Procedure
Dependent Variable:
uch4 co2
Source
DF
Type II SS
Mean Square F
Value
Pr > F
soakcat
1
1604.856730
1604.856730
4. 05
0.0462
temp
1
511.620513
511.620513
1.29
0.2578
avgtotpower
1
4.117716
4.117716
0. 01
0.9189
aeon
0
0.000000
oxyind
0
0.000000
altcat
0
0.000000
Standard
Parameter
Estimate
Error t
Value
Pr > |t|
Intercept
-73.65908170 B
84.10954899
-0. 88
0.3829
msid cause
1B7KF2361YJ14 661
-11.13283732 B
11.28920386
-0. 99
0.3260
msid cause
1B7KF2364XJ5954 6
-9.52112493 B
9.15230940
-1. 04
0.3003
msid cause
1B7KF2368WJ23770
9.98318813 B
10.46542845
0. 95
0.3420
msid cause
1B7KM2 683MS23882
17.54042369 B
13.80679590
1.27
0.2064
msid cause
1FTHW2 5 F 6VEC3180
4.24200161 B
8.02257591
0.53
0.5979
msid cause
1FTNF20F7YEA2924
1.32734017 B
8. 85679294
0.15
0.8811
msid cause
1FTSW31F2XEA85 68
-1.83110905 B
8.59939613
-0.21
0. 8317
msid cause
1FTSW31FXXEF0317
0.15614448 B
7.24015549
0. 02
0.9828
msid cause
1GCHK33F6SF00 630
-3.23272541 B
7. 80316939
-0. 41
0.6794
msid cause
3B7KC2364XG23502
31.12540960 B
9. 44691443
3.29
0.0013
msid cause
3B7KF2363XG14345
-1.82937389 B
9. 73398457
-0.19
0.8512
msid cause
3B7KF23D1VG8367 4
0.00000000 B
sched id
ART-CD
-0.97167124 B
27.62051419
-0. 04
0.9720
sched id
FTP bnl
24.76200699 B
30.47437328
0. 81
0.4181
sched id
FTP bn2
16.90271008 B
35.79407322
0. 47
0.6376
sched id
FTP bn3
6.86049612 B
29.40397609
0.23
0. 8159
sched id
FWY-E
-1.50092200 B
22.12918162
-0. 07
0.9460
3
2001
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-3
-------
Dependent Variable: uch4_co2
Diesel uCH4 Co2 Operating Conditions
The GLM Procedure
16:18 Friday, December 7, 2001
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched id
FWY-G
-0.56698718 B
34.63941893
-0
02
0
9870
sched id
FWY-HI
-0.81334115 B
8.53656850
-0
10
0
9243
sched id
LA92
0.83717425 B
26.32446908
0
03
0
9747
sched id
NYCC
4.10033183 B
37.02794575
0
11
0
9120
sched id
SC03
6.89745647 B
30.46257668
0
23
0
8213
sched id
SCC12
38.35443398 B
42.53032525
0
90
0
3689
sched id
ST01
28.18007978 B
31.53231097
0
89
0
3732
sched id
USO 6
0.00000000 B
soakcat
GE60
-17.27833714 B
8.58047873
-2
01
0
0462
soakcat
LT60
0.00000000 B
soakcat
None
0.00000000 B
temp
0.94199540
0.82851908
1
14
0
2578
avgtotpower
0.10448897
1. 02440098
0
10
0
9189
aeon
0
0.00000000 B
oxyind
D
0.00000000 B
altcat
L
0.00000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-4
-------
Diesel uCH4_Co2 Operating Conditions 5
16:18 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
149
0
10.4503448
2.2062713
3. 3857611
15.7083011
hclimit
149
0
0.8760821
0.1862526
0.2708609
1.3174704
disp
149
0
6.6231864
0.6691190
5. 8833169
7.3000000
testwght
149
0
7494.09
1126.44
4500.00
9900.00
road hp
149
0
16.1832215
2.3097152
11.6000000
18.5000000
odometer
149
0
35111.44
41583.24
427.0000000
144673.00
Pi
149
0
0.3147688
0.1053548
0
0. 4282051
p2
149
0
0.0561890
0.0566120
0. 0011521
0.2081967
p3
149
0
0.0062696
0.0116951
0
0. 0415973
p4
149
0
0.0019850
0.0041905
0
0.0149750
avgtotpower
149
0
17.1687414
12.7651738
4.3623343
52.7897796
temp
149
0
77.7785235
4.5364077
70. 0000000
89.0000000
rvp
0
149
mpg
149
0
15.2038255
4.3792835
6.6500000
29.6500000
co2
149
0
733.9485302
252.9116495
343.5680000
1526.44
gco2
149
0
2577.30
1702.42
658.1954667
6861.74
gco2 s
149
0
4.3779733
2.1471661
1.7707536
11. 4326011
ch4
149
0
0.0056980
0.0114099
0.0010000
0.1170000
gch4
149
0
0.0146340
0.0237503
0.0011796
0.2084085
mgch4 s
149
0
0.0281371
0.0569922
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-5
-------
Diesel uCH4_Co2 Operating Conditions 6
16:18 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
149
100.00
149
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
103
69.13
103
69.13
Fed LDT4
46
30. 87
149
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
4
2. 68
4
2. 68
1995
13
8.72
17
11. 41
1997
26
17. 45
43
28. 86
1998
6
4. 03
49
32. 89
1999
87
58.39
136
91.28
2000
13
8.72
149
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
145
97.32
145
97.32
PFI
4
2. 68
149
100.00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-6
-------
Diesel uCH4_Co2 Operating Conditions 7
16:18 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
110
39
73. 83
26.17
110
149
73. 83
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
64
85
42. 95
57. 05
64
149
42. 95
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
4
145
2. 68
97.32
4
149
2. 68
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
124
25
83.22
16.78
124
149
83.22
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
S
149
100.00
149
100.00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-7
-------
Diesel uCH4 Co2 Operating Conditions
16:18 Friday, December 7, 2001
The FREQ Procedure
Cumulative
Cumulative
cohigh
Frequency
Percent
Frequency
Percent
0
149
100.00
149
100.00
Cumulative
Cumulative
hchigh
Frequency
Percent
Frequency
Percent
0
149
100.00
149
100.00
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
ART-CD
8
5.37
8
5.37
FTP bnl
12
8. 05
20
13. 42
FTP bn2
12
8. 05
32
21. 48
FTP bn3
10
6.71
42
28.19
FWY-E
8
5.37
50
33. 56
FWY-G
11
7.38
61
40. 94
FWY-HI
13
8.72
74
49. 66
LA92
9
6.04
83
55.70
NYCC
24
16.11
107
71. 81
SC03
6
4. 03
113
75. 84
SCC12
1
0. 67
114
76.51
ST01
22
14.77
136
91.28
USO 6
13
8.72
149
100.00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-8
-------
Diesel uCH4_Co2 Operating Conditions 9
16:18 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
149
100.00
149
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
None
24
16
109
16.11
10.74
73.15
24
40
149
16.11
26. 85
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
149
100.00
149
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
25
35
139
10
93.29
6.71
139
149
93.29
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
L 149 100.00 149 100.00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-9
-------
Diesel uCH4_Co2 Operating Conditions 10
16:18 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
149 100.00 149 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 149 100.00 149 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 149 100.00 149 100.00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-10
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 11
16:18 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Class
msid cause
Levels Values
12 1B7KF2361YJ14 661 1B7KF2364XJ59546 1B7KF2368WJ23770 1B7KM2683MS23882
1FTHW2 5 F 6VEC3180 1FTNF20F7YEA2924 1FTSW31F2XEA85 68 1FTSW31FXXEF0317
1GCHK33F6SF00630 3B7KC2364XG23502 3B7KF2363XG14345 3B7KF23D1VG83674
sched id
13 ART-CD FTP_bnl FTP_bn2 FTP_bn3 FWY-E FWY-G FWY-HI LA92 NYCC SC03 SCC12 ST01
USO 6
aeon
altcat
soakcat
0
L
3 GE60 LT60 None
Number of observations 149
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-11
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 12
16:18 Friday, December 7, 2001
The GLM Procedure
it Variable: uch4 co2
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
25
16130.84066
645.23363
1. 63
0.0434
Error
123
48796.95546
396.72322
Corrected Total
148
64927.79612
R-Square
Coef f
Var Root
MSE uch4 co2
Mean
0.248443
240.
6237 19.91791 8.277620
Source
DF
Type I SS
Mean Square
F Value
Pr > F
msid cause
11
10302.68640
936.60785
2.36
0.0111
sched id
12
4163.68792
346.97399
0. 87
0.5744
soakcat
1
1654.62319
1654.62319
4.17
0.0433
avgtotpower
1
9.84314
9. 84314
0. 02
0. 8751
altcat
0
0.00000
aeon
0
0.00000
Source
DF
Type II SS
Mean Square
F Value
Pr > F
msid cause
11
7928.699181
720.790835
1. 82
0. 0579
sched id
11
5242.888034
476.626185
1.20
0.2931
soakcat
1
1651.104011
1651.104011
4.16
0.0435
avgtotpower
1
9. 843144
9. 843144
0. 02
0. 8751
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-12
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 13
16:18 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Source
altcat
aeon
DF
0
0
Type II SS
0.000000
0.000000
Mean Square
F Value
Pr > F
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
msid_cause
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched_id
sched id
1B7KF2361YJ14 661
1B7KF2364XJ5954 6
1B7KF2368WJ23770
1B7KM2 683MS23882
1FTHW2 5 F 6VEC3180
1FTNF20F7YEA2924
1FTSW31F2XEA85 68
1FTSW31FXXEF0317
1GCHK33F6SF00 630
3B7KC2364XG23502
3B7KF2363XG14345
3B7KF23D1VG8367 4
ART-CD
FTP_bnl
FTP_bn2
FTP_bn3
FWY-E
FWY-G
FWY-HI
LA92
NYCC
9. 37868715
-1. 85723649
-4.25010185
11.33819311
19.88625781
2.16818496
4.65341526
2.14939787
2.34386518
-3.23299401
29.77424736
-1.74592212
0.00000000
-5.78576651
14.12878233
4.25266286
-4. 05284519
-5.56475296
-8.14942355
-0. 09991645
-6.83841355
-4.47270887
41.76704706
7. 81244811
7.90062863
10.40971198
13.66799571
7.82176417
8.36965289
7.86380398
6. 98808341
7. 81244788
9.38301162
9. 74528187
27.32649406
29.03831125
34.06138660
27.82619761
21.86458372
34. 03179070
8.52359871
25.47435513
36.29517704
0.22
-0.24
-0.54
1. 09
1. 45
0.28
0.56
0.27
0.34
-0. 41
3.17
-0.18
-0.21
0. 49
0.12
-0.15
-0.25
-0.24
-0. 01
-0.27
-0.12
0. 8227
0. 8125
0.5916
0.2782
0.1482
0.7821
0.5792
0.7851
0.7379
0.6797
0. 0019
0. 8581
0. 8327
0.6274
0.9008
0.8844
0.7995
0.8111
0.9907
0.7888
0.9021
/camwheels/cam/epaco2ch4/DoplRatio. sas
H2-13
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 14
16:18 Friday, December 7, 2001
Dependent Variable: uch4_co2
The GLM Procedure
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
sched_id
sched_id
sched_id
sched_id
soakcat
soakcat
soakcat
avgtotpower
altcat
aeon
SC03
SCC12
ST01
USO 6
GE60
LT60
None
L
0
-1.01786317
24.76692681
16.62382877
0.00000000
-17.52014043
0.00000000
0.00000000
-0.15741347
0.00000000
0.00000000
29.69165861
40.86531010
29.88472831
8.58804229
0. 99935271
0
0
-2
03
61
56
04
16
9727
5456
5790
0435
8751
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-14
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 15
16:18 Friday, December 7, 2001
The MEANS Procedure
N
Variable N Miss Mean Std Dev Minimum Maximum
colimit
149
0
10.4503448
2.2062713
3.3857611
15.7083011
hclimit
149
0
0.8760821
0.1862526
0.2708609
1.3174704
disp
149
0
6.6231864
0.6691190
5. 8833169
7.3000000
testwght
149
0
7494.09
1126.44
4500.00
9900.00
road hp
149
0
16.1832215
2.3097152
11.6000000
18.5000000
odometer
149
0
35111.44
41583.24
427.0000000
144673.00
Pi
149
0
0.3147688
0.1053548
0
0. 4282051
p2
149
0
0.0561890
0.0566120
0. 0011521
0.2081967
p3
149
0
0.0062696
0.0116951
0
0. 0415973
p4
149
0
0.0019850
0.0041905
0
0.0149750
avgtotpower
149
0
17.1687414
12.7651738
4.3623343
52.7897796
temp
149
0
77.7785235
4.5364077
70. 0000000
89.0000000
rvp
0
149
mpg
149
0
15.2038255
4.3792835
6.6500000
29.6500000
co2
149
0
733.9485302
252.9116495
343.5680000
1526.44
gco2
149
0
2577.30
1702.42
658.1954667
6861.74
gco2 s
149
0
4.3779733
2.1471661
1.7707536
11. 4326011
ch4
149
0
0.0056980
0.0114099
0.0010000
0.1170000
gch4
149
0
0.0146340
0.0237503
0.0011796
0.2084085
mgch4 s
149
0
0.0281371
0.0569922
0.0019435
0.6272624
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-15
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 16
16:18 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
149
100.00
149
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
103
69.13
103
69.13
Fed LDT4
46
30. 87
149
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
4
2. 68
4
2. 68
1995
13
8.72
17
11. 41
1997
26
17. 45
43
28. 86
1998
6
4. 03
49
32. 89
1999
87
58.39
136
91.28
2000
13
8.72
149
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
145
97.32
145
97.32
PFI
4
2. 68
149
100.00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-16
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 17
16:18 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
110
39
73. 83
26.17
110
149
73. 83
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
64
85
42. 95
57. 05
64
149
42. 95
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
4
145
2. 68
97.32
4
149
2. 68
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
124
25
83.22
16.78
124
149
83.22
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
S
149
100.00
149
100.00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-17
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 18
16:18 Friday, December 7, 2001
The FREQ Procedure
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
149
100.00
149
100.00
hchigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0 149 100.00 149 100.00
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
ART-CD
8
5.
, 37
8
5.
, 37
FTP bnl
12
8.
, 05
20
13.
, 42
FTP bn2
12
8.
, 05
32
21.
, 48
FTP bn3
10
6.
, 71
42
28.
, 19
FWY-E
8
5.
, 37
50
33.
,56
FWY-G
11
7.
, 38
61
40.
, 94
FWY-HI
13
8.
, 72
74
49.
, 66
LA92
9
6.
, 04
83
55.
, 70
NYCC
24
16.
, 11
107
71.
, 81
SC03
6
4.
, 03
113
75.
, 84
SCC12
1
0.
, 67
114
76.
, 51
ST01
22
14.
, 77
136
91.
,28
US0 6
13
8.
, 72
149
100.
, 00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-18
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 19
16:18 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
start_run Frequency Percent Frequency Percent
149
100.00
149
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
None
24
16
109
16.11
10.74
73.15
24
40
149
16.11
26. 85
100.00
aeon
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
149
100.00
149
100.00
tempcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
25
35
139
10
93.29
6.71
139
149
93.29
100.00
altcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
L 149 100.00 149 100.00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-19
-------
Uch4_co2 Operating Conditions (without temp or oxyind) 20
16:18 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
149 100.00 149 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 149 100.00 149 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 149 100.00 149 100.00
/camwheels/cam/epaco2ch4/DoplRatio.sas
H2-20
-------
Appendix H3
Dependence of gCH4/gC02 for Diesel Vehicles on Special Conditions
-------
Diesel Uch4 co2 Soak Time (FTP bnl VS. FTP bn3)
1
Class
msid_cause
sched_id
aeon
altcat
16:20 Friday, December 7, 2001
The GLM Procedure
Class Level Information
Levels Values
11 1B7KF2361YJ14 661 1B7KF2364XJ59546 1B7KM2683MS23882 1FTHW25F6VEC3180
1FTNF20F7YEA2924 1FTSW31F2XEA85 68 1FTSW31FXXEF0317 1GCHK33F6SF00630
3B7KC2364XG23502 3B7KF2363XG14345 3B7KF23D1VG83674
2 FTP_bnl FTP_bn3
1 0
1 L
Number of observations 22
/camwheels/cam/epaco2ch4/DoplRatio_SR.sas
H3-1
-------
Diesel Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 2
16:20 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Sum of
Source
DF
Squares
Mean Square
F Value
Pr > F
Model
12
1440.845392
120.070449
5. 91
0.0060
Error
9
182.726089
20.302899
Corrected Total
21
1623.571482
R-Square
Coeff Var Root
MSE uch4 co2
Mean
0. 887454
66
98464 4.505874 6.726727
Source
DF
Type I SS
Mean Square
F Value
Pr > F
msid cause
10
1379.331124
137.933112
6.79
0.0041
sched id
1
55.933676
55. 933676
2.75
0.1313
temp
1
5.580592
5.580592
0.27
0.6128
avgtotpower
0
0.000000
aeon
0
0.000000
altcat
0
0.000000
Source
DF
Type II SS
Mean Square
F Value
Pr > F
msid cause
9
646.1998162
71.7999796
3.54
0.0369
sched id
1
55.9336760
55. 9336760
2.75
0.1313
temp
1
5.5805919
5.5805919
0.27
0.6128
avgtotpower
0
0.0000000
/camwheels/cam/epaco2ch4/DoplRatio_SR.sas
H3-2
-------
Diesel Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 3
16:20 Friday, December 7, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Source
DF
Type II SS
Mean Square
F
Value
Pr
> F
aeon
0
0.0000000
altcat
0
0.0000000
Standard
Parameter
Estimate
Error
t
Value
Pr
> 111
Intercept
-18.51892925 B
48.39273200
1
o
CO
CO
0
. 7108
msid cause
1B7KF2361YJ14 661
-6.50261504 B
6.37226786
1
1—1
o
K)
0
. 3342
msid cause
1B7KF2364XJ5954 6
-6.89613477 B
4.50587381
1
1—1
Cn
CO
0
.1603
msid cause
1B7KM2 683MS23882
21.66299213 B
4.55161990
4.76
0
. 0010
msid cause
1FTHW2 5 F 6VEC3180
-4.66173389 B
5.18964515
1
o
O
0
. 3924
msid cause
1FTNF20F7YEA2924
-1.70714820 B
4.90224466
1
o
CO
cn
0
. 7357
msid cause
1FTSW31F2XEA85 68
-7.75908095 B
5.64657755
-1.37
0
.2027
msid cause
1FTSW31FXXEF0317
-3.55365863 B
3. 91545149
1
o
1—1
0
. 3877
msid cause
1GCHK33F6SF00 630
-5.19282449 B
5.53728459
1
O
0
. 3728
msid cause
3B7KC2364XG23502
0.46605242 B
5. 93284055
CO
O
O
0
. 9391
msid cause
3B7KF2363XG14345
-6.39413794 B
4.55161990
1
1—1
O
0
. 1936
msid cause
3B7KF23D1VG8367 4
0.00000000 B
sched id
FTP bnl
3.34465771 B
2.01508803
1. 66
0
. 1313
sched id
FTP bn3
0.00000000 B
temp
0.33747538 B
0.64369626
0.52
0
. 6128
avgtotpower
0.00000000 B
aeon
0
0.00000000 B
altcat
L
0.00000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/DoplRatio_SR.sas
H3-3
-------
Diesel Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 4
16:20 Friday, December 7, 2001
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
22
0
8.4601189
1.5539132
4.1057925
9.7991038
hclimit
22
0
0.7081135
0.1345841
0.3284634
0. 8218603
disp
22
0
6.5210021
0.6786131
5.8833169
7.3000000
testwght
22
0
6765.73
874.0647890
4500.00
7812.00
road hp
22
0
15.7681818
2.3957077
11.6000000
18.5000000
odometer
22
0
38253.18
44647.59
427.0000000
144538.00
Pi
22
0
0.3386139
0
0.3386139
0.3386139
p2
22
0
0.0475248
0
0. 0475248
0. 0475248
p3
22
0
0
0
0
0
p4
22
0
0
0
0
0
avgtotpower
22
0
14.3399643
1.6409118
10.5314393
16.2160616
temp
22
0
74.9090909
3.5309393
70. 0000000
82. 0000000
rvp
0
22
mpg
22
0
17.1436364
2.4228153
12.1400000
21.7700000
co2
22
0
596.6543182
88.4266642
449.1000000
764.6980000
gco2
22
0
2142.60
317.5426073
1612.73
2746.05
gco2 s
22
0
4.2511949
0.6300449
3.1998623
5.4485154
ch4
22
0
0.0037273
0.0043989
0.0010000
0.0200000
gch4
22
0
0.0133847
0.0157967
0.0035910
0. 0718206
mgch4 s
22
0
0.0265972
0.0312273
0.0071230
0.1417063
/camwheels/cam/epaco2ch4/DoplRatio_SR.sas
H3-4
-------
Diesel Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 5
16:20 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
DIES
22
100.00
22
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
17
77.27
17
77.27
Fed LDT4
5
22.73
22
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
2
9.09
2
9.09
1995
2
9.09
4
18.18
1997
4
18.18
8
36.36
1999
12
54.55
20
90. 91
2000
2
9.09
22
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
20
90. 91
20
90. 91
PFI
2
9.09
22
100.00
/camwheels/cam/epaco2ch4/DoplRatio_SR.sas
H3-5
-------
Diesel Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 6
16:20 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
16
6
72.73
27.27
16
22
72.73
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
11
11
50. 00
50. 00
11
22
50. 00
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
2
20
9.09
90. 91
2
22
9.09
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
17
5
77.27
22.73
17
22
77.27
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
S 22 100.00 22 100.00
/camwheels/cam/epaco2ch4/DoplRatio_SR.sas
H3-6
-------
Diesel Uch4 co2 Soak Time (FTP bnl VS. FTP bn3)
7
The FREQ Procedure
16:20 Friday, December 7, 2001
Cumulative Cumulative
cohigh Frequency Percent Frequency Percent
0
22
100.00
22
100.00
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
0
22
100.00
22
100.00
sched id Frequency Percent
Cumulative
Frequency
Cumulative
Percent
FTP_bnl
FTP bn3
12
10
54.55
45. 45
12
22
54.55
100.00
start run
Frequency
22
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
22
100.00
soakcat Frequency Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
12
10
54.55
45. 45
12
22
54.55
100.00
/camwheels/cam/epaco2ch4/DoplRatio SR.sas
H3-7
-------
Diesel Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 8
16:20 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
aeon Frequency Percent Frequency Percent
0 22 100.00 22 100.00
Cumulative Cumulative
tempcat Frequency Percent Frequency Percent
25 22 100.00 22 100.00
Cumulative Cumulative
altcat Frequency Percent Frequency Percent
L 22 100.00 22 100.00
Cumulative Cumulative
rvpind Frequency Percent Frequency Percent
22 100.00 22 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 22 100.00 22 100.00
/camwheels/cam/epaco2ch4/DoplRatio_SR. sas
H3-8
-------
Diesel Uch4_co2 Soak Time (FTP_bnl VS. FTP_bn3) 9
16:20 Friday, December 7, 2001
The FREQ Procedure
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 22 100.00 22 100.00
/camwheels/cam/epaco2ch4/DoplRatio_SR.sas
H3-9
-------
The SAS System 21:02 Saturday, December 8, 2001 1
The GLM Procedure
Number of observations 154
NOTE: Due to missing values, only 152 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/DoplRatio_t.sas
H3-10
-------
Dependent Variable: mgch4_s
Source
Model
Error
Corrected Total
DF
1
150
151
The SAS System
The GLM Procedure
Sum of
Squares
0.00378719
0.48243353
0.48622072
21:02 Saturday, December 8, 2001 2
Mean Square F Value Pr > F
0.00378719 1.18 0.2796
0.00321622
R-Square Coeff Var Root MSE mgch4_s Mean
0.007789 198.1507 0.056712 0.028621
Source
gco2_s
DF
1
Type I SS
0.00378719
Mean Square
0.00378719
F Value
1.18
Pr > F
0.2796
Source
gco2_s
DF Type II SS
1 0.00378719
Mean Square
0.00378719
F Value
1.18
Pr > F
0.2796
Parameter
Intercept
gco2_s
Estimate
0.0385343356
-.0022992421
Standard
Error
0. 01022868
0. 00211885
t Value
3. 77
-1. 09
Pr > |t|
0. 0002
0.2796
/camwheels/cam/epaco2ch4/DoplRatio t. sas
H3-11
-------
The SAS System 21:02 Saturday, December 8, 2001 3
The GLM Procedure
Number of observations 154
NOTE: Due to missing values, only 152 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/DoplRatio_t.sas
H3-12
-------
Dependent Variable: lmgch4_s
Source
Model
Error
Corrected Total
DF
1
150
151
The SAS System
The GLM Procedure
Sum of
Squares
0.3535893
154.3519500
154.7055393
21:02 Saturday, December 8, 2001 4
Mean Square F Value Pr > F
0.3535893 0.34 0.5586
1.0290130
R-Square Coeff Var Root MSE lmgch4_s Mean
0.002286 -24.52382 1.014403 -4.136397
Source
lgco2_s
DF
1
Type I SS
0.35358934
Mean Square
0.35358934
F Value
0.34
Pr > F
0.5586
Source
lgco2_s
DF Type II SS
1 0.35358934
Mean Square
0.35358934
F Value
0.34
Pr > F
0.5586
Parameter
Intercept
lgco2_s
Estimate
-4.271744603
0.100435420
Standard
Error
0.24511466
0.17133566
t Value
-17.43
0.59
Pr > |t|
<.0001
0.5586
/camwheels/cam/epaco2ch4/DoplRatio t. sas
H3-13
-------
The SAS System 21:02 Saturday, December 8, 2001 5
The GLM Procedure
Class Level Information
Class Levels Values
msid_cause 12 1B7KF2361YJ14661 1B7KF2364XJ59546 1B7KF2368WJ23770 1B7KM2683MS23882
1FTHW2 5 F 6VEC3180 1FTNF20F7YEA2924 1FTSW31F2XEA85 68 1FTSW31FXXEF0317
1GCHK33F6SF00630 3B7KC2364XG23502 3B7KF2363XG14345 3B7KF23D1VG83674
Number of observations 154
NOTE: Due to missing values, only 152 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/DoplRatio_t. sas
H3-14
-------
The SAS System
The GLM Procedure
21:02 Saturday, December 8, 2001
Dependent Variable: lmgch4_s
Source
Model
Error
Corrected Total
Sum of
DF Squares
12 45.2577011
139 109.4478382
151 154.7055393
Mean Square F Value Pr > F
3.7714751 4.79 <.0001
0.7873945
R-Square
0.292541
Coeff Var
-21.45230
Root MSE
0.887353
lmgch4_s Mean
-4.136397
Source
msid_cause
lgco2_s
DF
11
1
Type I SS
35. 95590254
9.30179859
Mean Square
3.26871841
9.30179859
F Value
4.15
11. 81
Pr > F
<.0001
0.0008
Source
msid_cause
lgco2_s
DF
11
1
Type II SS
44.90411179
9.30179859
Mean Square
4. 08219198
9.30179859
F Value
5.18
11. 81
Pr > F
<.0001
0.0008
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
msid cause 1B7KF2361YJ14661
-4.996658786 B
-0.399279035 B
0.33893171
0.34821628
-14.74
-1.15
<.0001
0.2535
/camwheels/cam/epaco2ch4/DoplRatio t.sas
H3-15
-------
The SAS System
21:02 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: lmgch4_s
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
msid cause
1B7KF2364XJ5954 6
-0.853085194 B
0.35014246
-2. 44
0.0161
msid cause
1B7KF2368WJ23770
-0.116235346 B
0.43809711
-0.27
0.7912
msid cause
1B7KM2 683MS23882
1.851500824 B
0.44077662
4.20
<.0001
msid cause
1FTHW2 5 F 6VEC3180
0.286717832 B
0.34945614
0. 82
0.4134
msid cause
1FTNF20F7YEA2924
0.663744158 B
0.34965074
1. 90
0.0597
msid cause
1FTSW31F2XEA85 68
0.231452469 B
0.32694051
0.71
0. 4802
msid cause
1FTSW31FXXEF0317
0.208928066 B
0.29644379
0.70
0. 4821
msid cause
1GCHK33F6SF00 630
-0.632482473 B
0.35108932
1
1—1
CO
o
0. 0738
msid cause
3B7KC2364XG23502
0.424318689 B
0. 40326976
1. 05
0.2945
msid cause
3B7KF2363XG14345
-0.628085379 B
0.41610458
1
1—1
en
i—1
0.1335
msid cause
3B7KF23D1VG8367 4
0.000000000 B
lgco2 s
0.593900564
0.17279313
3.44
0.0008
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/DoplRatio_t.sas
H3-16
-------
Appendix 11
Dependence of gCH4/gC02 for Combined Vehicles on Vehicle
Characteristics
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 1
17:50 Saturday, December 8, 2001
Class
cohigh
cat_type
hchigh
sched id
model_yr
tran_type
fueltype
The GLM Procedure
Class Level Information
Levels Values
2 0 1
4 3WAY NONE OX3W OXID
2 0 1
52 4 0_MPH 45_MPH 50_MPH 55_MPH 60_MPH 65_MPH 75_MPH 80_MPH 85_MPH 95_MPH ART-AB
ART-CD ART-EF CAART1 CAART2 CAART3 CACYC1 CACYC2 CACYC3 CACYC4 CACYC5 CACYC6
CACYC7 F505 FTP_bnl FTP_bn2 FTP_bn3 FWY-AC FWY-D FWY-E FWY-F FWY-G FWY-HI HWFET
LA4 LA92 LOCAL LSP1 LSP2 LSP3 NONFWY NYCC RAMP SC03 SCC12 SCC36 ST01 UNCFTP
UNCFTP_bnl UNCFTP_bn2 UNCFTP_bn3 US0 6
27 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
2 AUTO MANUAL
2 DIES GAS
Number of observations 40277
NOTE: Due to missing values, only 27714 observations can be used in this analysis.
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-1
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 2
17:50 Saturday, December 8, 2001
Dependent Variable: uch4_co2
Source
Model
Error
Corrected Total
The GLM Procedure
Sum of
DF Squares
84 975067183
27629 4090118175
27713 5065185358
Mean Square
11607943
148037
F Value
78. 41
Pr > F
<.0001
R-Square
0.192504
Coeff Var
164.7786
Root MSE
384.7560
uch4_co2 Mean
233.4987
Source
sched_id
cohigh
hchigh
cat_type
model_yr
tran_type
fueltype
DF
51
1
1
3
26
1
1
Type I SS
106933717.2
635397631.7
91213419.7
77559806.8
43825409.7
18637871.3
1499326.8
Mean Square
2096739.6
635397631.7
91213419. 7
25853268.9
1685592.7
18637871.3
1499326. 8
F Value
14.16
4292.15
616.15
174.64
11.39
125.90
10.13
Pr > F
<.0001
<.0001
<.0001
<.0001
<.0001
<.0001
0. 0015
Source
sched_id
cohigh
hchigh
DF
51
1
1
Type II SS
134826150.2
163472301.0
65829143.2
Mean Square
2643650.0
163472301.0
65829143.2
F Value
17. 86
1104.27
444.68
Pr > F
<.0001
<.0001
<.0001
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-2
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 3
17:50 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Source
DF
Type II SS
Mean Square
F Value
Pr > F
cat_type
model_yr
tran_type
fueltype
3
26
1
1
42766137.1
37127754.5
18262540.9
1499326.8
14255379. 0
1427990. 6
18262540.9
1499326.8
96. 30
9. 65
123.36
10.13
<.0001
<.0001
<.0001
0. 0015
Parameter
Estimate
Standard
Error
t Value
Pr > |t|
Intercept
640.7195191 B
171.5794194
3. 73
0. 0002
sched id
40 MPH
-27.2280702 B
386.2083716
-0. 07
0. 9438
sched id
45 MPH
-96.6618873 B
386.3049034
-0.25
0. 8024
sched id
50 MPH
-8.0499529 B
386.2083716
1
o
o
K)
0.9834
sched id
55 MPH
-113.8696366 B
131.7442575
CO
O
1
0.3874
sched id
60 MPH
87.3330524 B
386.2083716
0.23
0. 8211
sched id
65 MPH
-110.4441935 B
131.7442575
CO
o
1
0.4019
sched id
75 MPH
-130.6207964 B
160.0956851
1
o
CO
K)
0.4146
sched id
80 MPH
-22.5403296 B
160.0321730
1
o
1—1
0. 8880
sched id
85 MPH
179.8900777 B
386.2083716
0. 47
0.6414
sched id
95 MPH
488.3075738 B
224.5037530
2.18
0. 0296
sched id
ART-AB
19.1558240 B
51.0300609
0.38
0.7074
sched id
ART-CD
36.0989660 B
49.2060997
0.73
0.4632
sched id
ART-EF
14.5349257 B
43.2691586
0.34
0.7369
sched id
CAART1
-174.3544040 B
62. 4514418
-2.79
0.0052
sched id
CAART2
-154.9940038 B
61. 0426404
1
K)
Cn
0.0111
sched id
CAART3
-161.3769195 B
60.1178632
-2. 68
0.0073
sched id
CACYC1
-187.1585836 B
68.3462756
-2.74
0.0062
sched id
CACYC2
-145.6948278 B
61. 0094284
-2.39
0.0169
sched id
CACYC3
-139.9721579 B
62. 4526952
-2.24
0. 0250
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-3
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 4
17:50 Saturday, December 8, 2001
Dependent Variable: uch4_co2
Parameter
sched
id
CACYC4
sched
id
CACYC5
sched
id
CACYC6
sched
id
CACYC7
sched
id
F505
sched
id
FTP bnl
sched
id
FTP bn2
sched
id
FTP bn3
sched
id
FWY-AC
sched
id
FWY-D
sched
id
FWY-E
sched
id
FWY-F
sched
id
FWY-G
sched
id
FWY-HI
sched
id
HWFET
sched
id
LA4
sched
id
LA92
sched
id
LOCAL
sched
id
LSP1
sched
id
LSP2
sched
id
LSP3
sched
id
NONFWY
sched
id
NYCC
sched
id
RAMP
sched
id
SC03
sched
id
SCC12
sched
id
SCC36
sched
id
ST01
The GLM
Procedure
Standard
Estimate
Error
t Value
Pr > |t|
-149.5510109
B 61.4645898
1
K)
CO
0. 0150
-186.8276188
B 63.9857806
-2. 92
0. 0035
-127.6472340
B 60.5429798
-2.11
0.0350
-101.6478460
B 60.5404348
CO
\—1
1
0.0932
-60.8297415
B 37.9609214
-1. 60
0.1091
-50.7363672
B 29.8783975
-1.70
0.0895
-142.2970387
B 29.8858726
-4.76
<.0001
-152.1252465
B 29.8791135
1
Cn
o
<.0001
-66.3890974
B 47.4597379
1
1—1
O
0.1619
-72.7206369
B 50.5959416
-1. 44
0.1506
-12. 4894923
B 49.5489657
1
o
K)
Cn
0.8010
-14.4744226
B 43.2693796
1
o
CO
CO
0.7380
25.2921376
B 48.0932071
0.53
0.5990
-78.4576122
B 42.2683756
CO
\—1
1
0.0634
-250.6623893
B 30.2835028
1
CO
K)
CO
<.0001
53.2426165
B 83.7991084
0. 64
0.5252
-21.3705219
B 42.3648897
o
LO
o
1
0.6140
24.0863945
B 50.6323091
CO
o
0.6343
-59.9749714
B 32.7272625
1
i—1
CO
CO
0.0 669
-53.1175110
B 32.7141057
-1. 62
0.1045
-34.9651133
B 32.7270391
-1. 07
0.2854
14.3086638
B 50.8476267
0.28
0.7784
-82.9876601
B 31.2111593
-2. 66
0. 0078
10.5734155
B 49.8267804
0.21
0.8319
-29.5694592
B 178.2611769
-0.17
0.8683
-148.3506690
B 31.6965956
CO
1
<.0001
-221.9628039
B 31.8251505
-6. 97
<.0001
87.5883658
B 38.2238540
2.29
0. 0219
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-4
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 5
17:50 Saturday, December 8, 2001
Dependent Variable: uch4_co2
The GLM Procedure
Parameter
Estimate
Error
t Value
sched id
UNCFTP
-188.5169904 B
48.2999538
-3. 90
sched id
UNCFTP
bnl
-129.2171549 B
48.1527302
-2. 68
sched id
UNCFTP"
bn2
-203.5380940 B
48.1527302
-4.23
sched id
UNCFTP"
bn3
-203.5923541 B
48.2999538
-4.22
sched id
US0 6
0.0000000 B
cohigh
0
-270.9314544 B
8.1530984
-33.23
cohigh
1
0.0000000 B
hchigh
0
-157.5240707 B
7.4700442
1
K)
1—1
O
hchigh
1
0.0000000 B
cat type
3WAY
-119.0106726 B
9.5607196
1
1—1
K)
Cn
cat type
NONE
4.8608256 B
42.9707654
0.11
cat type
OX3W
-32.7517116 B
9.5312388
1
CO
cat type
OXID
0.0000000 B
model yr
1974
436.0890299 B
278.0767156
1.57
model yr
1975
322.7283189 B
279.1842747
1.16
model yr
1976
469.4105803 B
196.1174373
2.39
model yr
1977
195.7401102 B
170.3575113
1.15
model yr
1978
203.9019091 B
169.9364788
1.20
model yr
1979
273.2219822 B
169.8714855
1. 61
model yr
1980
150.3821787 B
169.2969113
o
CO
model yr
1981
206.7278640 B
168.8105899
1.22
model yr
1982
176.6782507 B
169.0740898
1. 04
model yr
1983
143.4681537 B
168.9084091
LO
CO
o
model yr
1984
221.0773738 B
169.0358466
1—1
CO
1—1
model yr
1985
180.4250061 B
168.8924586
1. 07
model yr
1986
248.2455102 B
168.9358573
1. 47
model yr
1987
164.3009451 B
168.8800618
0. 97
model yr
1988
212.5240508 B
168.8218064
1.26
Pr > |t|
<.0001
0. 0073
<.0001
<.0001
<.0001
<.0001
<.0001
0.9099
0. 0006
0.1168
0.2477
0.0167
0.2506
0.2302
0.1078
0.3744
0.2207
0.2960
0.3957
0.1909
0.2854
0.1417
0.3306
0.2081
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-5
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 6
17:50 Saturday, December 8, 2001
The GLM Procedure
Dependent Variable: uch4_co2
Standard
Parameter
Estimate
Error
t Value
Pr > |t|
model yr
1989
195.6374613 B
168.8768656
1.16
0.2467
model yr
1990
169.8788864 B
168.8649637
1. 01
0.3144
model yr
1991
154.0183018 B
168.9855618
0. 91
0.3621
model yr
1992
210.7378521 B
169.1724893
1.25
0.2129
model yr
1993
105.7016444 B
169.7484765
0. 62
0.5335
model yr
1994
134.4882874 B
169.6383559
0.79
0.4279
model yr
1995
62.1379791 B
169.5918047
0.37
0.7141
model yr
1996
59.8846793 B
169.5517497
0.35
0.7239
model yr
1997
73.0056427 B
168.8590817
0. 43
0.6655
model yr
1998
108.7513732 B
173.7166347
0. 63
0.5313
model yr
1999
47.1348110 B
162.5531753
0.29
0.7718
model yr
2000
0.0000000 B
tran type
AUTO
-60.1170560 B
5.4125566
-11.11
<.0001
tran type
MANUAL
0.0000000 B
fueltype
DIES
-179.1106754 B
56.2805925
-3.18
0. 0015
fueltype
GAS
0.0000000 B
NOTE: The X'X matrix has been found to be singular, and a generalized inverse was used to solve the
normal equations. Terms whose estimates are followed by the letter 'B' are not uniquely
estimable.
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-6
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 7
17:50 Saturday, December 8, 2001
fueltype=DIES
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
139
0
10.3494738
2.2247368
3.3857611
15.7083011
hclimit
139
0
0. 8675933
0.1878586
0.2708609
1.3174704
disp
139
0
6.6752142
0.6629772
5. 8833169
7.3000000
testwght
139
0
7456.12
1136.83
4500.00
9900.00
road hp
139
0
16.2532374
2.3413827
11.6000000
18.5000000
odometer
139
0
37147.66
42320.95
427. 0000000
144673.00
Pi
139
0
0.3195415
0.1019676
0
0. 4282051
p2
139
0
0. 0532002
0.0541708
0.0011521
0.2081967
p3
139
0
0. 0052871
0.0103720
0
0. 0415973
p4
139
0
0.0016497
0.0037000
0
0.0149750
avgtotpower
139
0
16.4190891
12.0805502
4.3623343
52.7897796
temp
139
0
77.0791367
3.8279384
70.0000000
84. 0000000
rvp
0
139
mpg
139
0
15.1608633
4.2950183
6.6500000
29.6500000
co2
139
0
733.3549712
248. 4853375
343.5680000
1526.44
gco2
139
0
2511.02
1690.33
658.1954667
6861.74
gco2 s
139
0
4.2750310
2.0680068
1.7707536
11.4326011
ch4
139
0
0.0060288
0.0117461
0.0010000
0.1170000
gch4
139
0
0.0152253
0. 0244697
0.0011796
0.2084085
uch4 co2
139
0
8.7492723
21.6127440
0.6551174
231.7611869
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-7
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 8
17:50 Saturday, December 8, 2001
fueltype=GAS
Variable
N
N
Miss
The MEANS
Mean
Procedure
Std Dev
Minimum
Maximum
colimit
27575
0
5.2238296
3.4312477
3.2000000
39.0000000
hclimit
27575
0
0.5139953
0.2865169
0.2500000
3.4000000
disp
27575
0
2.8515524
1.1184283
0.9996722
7.5385120
testwght
22624
4951
3252.99
623.6731964
2000.00
8800.00
road hp
21010
6565
8.6022370
2. 4776443
3.2000000
23.4000000
odometer
27467
108
56780.65
32807.48
343.0000000
581110.00
Pi
27145
430
0.3512354
0.0624812
0
0.4411765
p2
27145
430
0.0290395
0. 0298749
0
0.2081967
p3
27145
430
0.000674253
0.0040274
0
0. 0415973
p4
27145
430
0.000183848
0.0013018
0
0.0149750
avgtotpower
20665
6910
5.9508044
3.3273051
0.2568667
54.2476938
temp
27575
0
75.6704189
1.6061877
68.0000000
85.0000000
rvp
27575
0
8.9859764
0.0564242
8.7000000
9.2000000
mpg
27575
0
22.5409682
8.2393958
2.2700000
88.5200000
co2
27575
0
452.5461069
261.4907974
19.9000000
3888.40
gco2
27144
431
1584.90
848.9143697
71.4614528
13963.35
gco2 s
27145
430
2.4551633
1.0477160
0.1417886
27.7050643
ch4
27575
0
0.1056727
0.2214123
-1.5300000
8.7500000
gch4
27144
431
0.3362603
0.5082157
-5.9049075
19.1427067
uch4 co2
27575
0
234.6316274
428.2942926
-4602.89
14127.03
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-8
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 9
17:50 Saturday, December 8, 2001
fueltype=DIES
The
FREQ Procedure
Cumulative
Cumulative
fueltype
Frequency
Percent
Frequency
Percent
DIES
139
100.00
139
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
Fed HDV
93
66. 91
93
66. 91
Fed LDT4
46
33. 09
139
100.00
Cumulative
Cumulative
model yr
Frequency
Percent
Frequency
Percent
1991
4
2. 88
4
2. 88
1995
13
9. 35
17
12.23
1997
26
18.71
43
30. 94
1998
6
4.32
49
35.25
1999
84
60. 43
133
95. 68
2000
6
4.32
139
100.00
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
DIRECT
135
97.12
135
97.12
PFI
4
2. 88
139
100.00
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-9
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 10
17:50 Saturday, December 8, 2001
- fueltype=DIES --
The FREQ Procedure
Cumulative Cumulative
cat_type Frequency Percent Frequency Percent
NONE
OXID
100
39
71. 94
28. 06
100
139
71. 94
100.00
cylinder
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
6
8
54
85
38. 85
61.15
54
139
38. 85
100.00
aspirated
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
CHARGED
TURBO
4
135
2. 88
97.12
4
139
2. 88
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
121
18
87. 05
12. 95
121
139
87. 05
100.00
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-10
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 11
17:50 Saturday, December 8, 2001
fueltype=DIES
The FREQ Procedure
Cumulative Cumulative
repairs Frequency Percent Frequency Percent
B 139 100.00 139 100.00
Cumulative Cumulative
cohigh Frequency Percent Frequency Percent
0 139 100.00 139 100.00
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
0 139 100.00 139 100.00
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-11
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 12
17:50 Saturday, December 8, 2001
fueltype=DIES
The
FREQ Procedure
Cumulative
Cumulative
sched id
Frequency
Percent
Frequency
Percent
ART-CD
8
5.76
8
5.76
FTP bnl
12
8. 63
20
14.39
FTP bn2
12
8. 63
32
23. 02
FTP bn3
10
7.19
42
30.22
FWY-E
8
5.76
50
35. 97
FWY-G
11
7. 91
61
CO
CO
CO
FWY-HI
11
7. 91
72
cn
1—1
CO
o
LA92
9
6. 47
81
58.27
NYCC
21
15.11
102
73. 38
SC03
5
3. 60
107
76. 98
SCC12
1
0.72
108
77.70
ST01
22
15. 83
130
93. 53
US0 6
9
6. 47
139
Cumulative
100.00
Cumulative
start run
Frequency
Percent
Frequency
Percent
139
100.00
139
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
100
24
15
71. 94
17.27
10.79
100
124
139
71. 94
89.21
100.00
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-12
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 13
17:50 Saturday, December 8, 2001
-- fueltype=DIES
The FREQ Procedure
Frequency
139
Percent
100.00
Cumulative
Frequency
139
Cumulative
Percent
100.00
tempcat Frequency
25 139
Cumulative Cumulative
Percent Frequency Percent
100.00
139
100.00
altcat Frequency Percent
L 139 100.00
Cumulative Cumulative
Frequency Percent
139
100.00
rvpind Frequency
139
Cumulative Cumulative
Percent Frequency Percent
100.00
139
100.00
oxygenate Frequency
None 139
Cumulative Cumulative
Percent Frequency Percent
100.00
139
100.00
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-13
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 14
17:50 Saturday, December 8, 2001
fueltype=DIES
The FREQ Procedure
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
D 139 100.00 139 100.00
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-14
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 15
17:50 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
fueltype Frequency Percent Frequency Percent
GAS
27575
100.00
27575
100.00
Cumulative
Cumulative
fedcat
Frequency
Percent
Frequency
Percent
31
o
1—1
1—1
31
0.11
Fed HDV
94
0.34
125
LO
o
Fed LDT1
2544
9.23
2669
CO
(J)
Fed LDT2
323
1.17
2992
1—1
o
CO
en
Fed LDT3
494
1.79
3486
12. 64
Fed LDT4
26
o
o
3512
12.74
Fed LDV
24063
87.26
27575
100.00
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-15
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 16
17:50 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
model_yr Frequency Percent Frequency Percent
1974
3
o
o
1—1
3
o
o
1—1
1975
3
0. 01
6
0. 02
1976
15
0. 05
21
0. 08
1977
200
0.73
221
0. 80
1978
264
0. 96
485
1.76
1979
391
1. 42
876
3.18
1980
1067
3. 87
1943
7. 05
1981
4709
17. 08
6652
24.12
1982
1261
4.57
7913
28.70
1983
1971
7.15
9884
35. 84
1984
1339
4.86
11223
40.70
1985
2149
7.79
13372
CO
1986
1734
6.29
15106
54.78
1987
2184
7. 92
17290
62.70
1988
2641
9.58
19931
72.28
1989
1925
6. 98
21856
79.26
1990
1999
7.25
23855
86.51
1991
1006
3. 65
24861
90.16
1992
846
3. 07
25707
93.23
1993
389
1. 41
26096
94. 64
1994
430
1.56
26526
96.20
1995
237
0.86
26763
97. 06
1996
435
1.58
27198
98. 63
1997
313
1.14
27511
99. 77
1998
55
0.20
27566
99. 97
1999
9
0. 03
27575
100.00
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-16
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 17
17:50 Saturday, December 8, 2001
fueltype=GAS
The
FREQ Procedure
Cumulative
Cumulative
fi type
Frequency
Percent
Frequency
Percent
560
2. 03
560
2. 03
NOTFI
9963
36.13
10523
38.16
PFI
10481
38. 01
21004
76.17
TBI
6571
23. 83
27575
100.00
Cumulative
Cumulative
cat type
Frequency
Percent
Frequency
Percent
3WAY
15114
54. 81
15114
54. 81
NONE
79
0.29
15193
55.10
OX3W
8439
30. 60
23632
85.70
OXID
3943
14.30
27575
100.00
Cumulative
Cumulative
cylinder
Frequency
Percent
Frequency
Percent
3
31
0.11
31
0.11
4
15183
55. 06
15214
55.17
5
31
0.11
15245
55.29
6
8950
32. 46
24195
87.74
8
3380
12.26
27575
100.00
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-17
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 18
17:50 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
aspirated Frequency Percent Frequency Percent
CHARGED
NATURAL
13
691
26871
0. 05
2.51
97. 45
13
704
27575
0. 05
2.55
100.00
tran type
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
AUTO
MANUAL
19970
7605
72. 42
27.58
19970
27575
72. 42
100.00
repairs
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
A
B
3889
23686
14.10
85. 90
3889
27575
14.10
100.00
cohigh
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
0
1
22991
4584
83. 38
16. 62
22991
27575
83. 38
100.00
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-18
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 19
17:50 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
hchigh Frequency Percent Frequency Percent
0 21517 78.03 21517 78.03
1 6058 21.97 27575 100.00
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-19
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 20
17:50 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
40 MPH
1
0.
. 00
1
0.
, 00
45 MPH
1
0.
. 00
2
0.
, 01
50 MPH
1
0.
. 00
3
0.
, 01
55 MPH
9
0.
. 03
12
0.
, 04
60 MPH
1
0.
. 00
13
0.
, 05
65 MPH
9
0.
. 03
22
0.
, 08
75 MPH
6
0.
. 02
28
0.
, 10
80 MPH
6
0.
. 02
34
0.
, 12
85 MPH
1
0.
. 00
35
0.
, 13
95 MPH
3
0.
. 01
38
0.
, 14
ART-AB
84
0.
. 30
122
0.
, 44
ART-CD
86
0.
. 31
208
0.
, 75
ART-EF
141
0.
. 51
349
1.
,27
CAART1
49
0.
. 18
398
1.
, 44
CAART2
52
0.
. 19
450
1.
, 63
CAART3
54
0.
.20
504
1.
, 83
CACYC1
39
0.
. 14
543
1.
, 97
CACYC2
52
0.
. 19
595
2.
,16
CACYC3
49
0.
. 18
644
2.
, 34
CACYC4
51
0.
. 18
695
2.
, 52
CACYC5
46
0.
. 17
741
2.
, 69
CACYC6
53
0.
. 19
794
2.
, 88
CACYC7
53
0.
. 19
847
3.
, 07
F505
238
0.
.86
1085
3.
, 93
FTP bnl
5269
19.
. 11
6354
23.
, 04
FTP bn2
5247
19.
. 03
11601
42.
, 07
FTP bn3
5269
19.
. 11
16870
61.
, 18
FWY-AC
104
0.
. 38
16974
61.
,56
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-20
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 21
17:50 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
sched_id Frequency Percent Frequency Percent
FWY-D
86
0.31
17060
61. 87
FWY-E
84
0.30
17144
62.17
FWY-F
141
0.51
17285
62. 68
FWY-G
90
0.33
17375
63. 01
FWY-HI
142
0.51
17517
63. 52
HWFET
3290
11. 93
20807
75. 46
LA4
24
0. 09
20831
75.54
LA92
143
0.52
20974
76.06
LOCAL
86
0.31
21060
76. 37
LSP1
724
2. 63
21784
79.00
LSP2
727
2. 64
22511
81. 64
LSP3
724
2. 63
23235
84.26
NONFWY
85
0.31
23320
84.57
NYCC
1245
4.51
24565
89.08
RAMP
90
0.33
24655
89.41
SCC12
1090
3. 95
25745
93. 36
SCC36
1036
3.76
26781
97.12
ST01
210
0.76
26991
97. 88
UNCFTP
102
0.37
27093
98.25
UNCFTP bnl
103
0.37
27196
98. 63
UNCFTP bn2
103
0.37
27299
99. 00
UNCFTP bn3
102
0.37
27401
99. 37
USO 6
174
0. 63
27575
100.00
/camwheels/cam/epaco2ch4/vclratcomb. sas
11-21
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 22
17:50 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
start run
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
R
S
27065
180
330
)8.15
0. 65
1.20
27065
27245
27575
98.15
98. 80
100.00
soakcat
Frequency
Percent
Cumulative
Frequency
Cumulative
Percent
GE60
LT60
16627
5525
5423
60.30
20. 04
19. 67
16627
22152
27575
60.30
80.33
100.00
aeon
Frequency
27575
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
27575
100.00
tempcat
25
Frequency
27575
Percent
100.00
Cumulative
Frequency
Cumulative
Percent
27575
100.00
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-22
-------
Only MSOD Data, All Cycles, 25C, AC off, not High Altitude, Diesel or Non-Oxy Gasoline 23
17:50 Saturday, December 8, 2001
fueltype=GAS
The FREQ Procedure
Cumulative Cumulative
altcat Frequency Percent Frequency Percent
102
0.37
102
0.37
L
27473
99. 63
27575
100.00
Cumulative
Cumulative
rvpind
Frequency
Percent
Frequency
Percent
27575 100.00 27575 100.00
Cumulative Cumulative
oxygenate Frequency Percent Frequency Percent
None 27575 100.00 27575 100.00
Cumulative Cumulative
oxyind Frequency Percent Frequency Percent
R 27575 100.00 27575 100.00
/camwheels/cam/epaco2ch4/vclratcomb.sas
11-23
-------