EPA and Chrysler to Jointly
                   Design  and  Evaluate a  Hydraulic
                   Hybrid Minivan
                   EPA and Chrysler have
                   formed a partnership to explore applying
                   EPA's Hydraulic Hybrid Vehicle (HHV) technology to light-duty
                   vehicles. A joint EPA and Chrysler engineering team are designing
                   a series HHV drivetrain, for evaluation and demonstration in a
                   Chrysler minivan.
                   Partnership Details
                   The partnership is a Cooperative Research and Development Agreement (CRADA)
                   in which both organizations will closely collaborate on design and evaluation of the
                   demonstration vehicle. EPA will focus on incorporating its HHV technology into the
                   prototype development vehicle. Chrysler will focus on controls, packaging and driver
                   sensitivities for smooth and quiet hybrid operation.

                   Partnership Goals:
                      •  Assess HHV technology potential in a light-duty passenger vehicle
                        - Reduce Greenhouse Gases by 25% (30-35% overall fuel economy
                          improvement)
                        - Improve city fuel economy by up to 60%
                        - Similar performance from the project's 4cyl HHV as the current V-6
                          production minivan
                      •  Characterize and solve the challenges unique to applying HHV technology
                        to personal vehicles
                        - Fit the hybrid system within the tight confines of a minivan platform
                        - Identify enablers to meet driver expectations for car levels of safety,
                          smoothness and refinement
                      •  Demonstrate greenhouse gas (GHG) emissions reductions
SEPA
United States
Environmental Protection
Agency
Office of Transportation and Air Quality
                 EPA-420-F-11-002
                    January 2011

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          Advantages of Hydraulic Hybrid Vehicles (HHVs):
             •  Hybridization with potential for faster payback due to low cost, and greater
                regenerative efficiency than Hybrid Electric Vehicles (HEVs)
             •  Applicable to many popular vehicles in the marketplace
            Engine Pump/Motor V Drive Pump/Motor
                                     High Pressure Accumulator
                                     Low Pressure Accumulator
             •  Simple & effective American-made technology

           Project Vehicle Development Timeline:
             •  Completion of design and build is scheduled for November 2011
             •  Completion of evaluation and testing is scheduled for July 2012
The technical organizations that contributed to the development of the
                hydraulic hybrid minivan are:
                                                      FE¥
                                        SERA
                                     United States
                                     Environmental Protection
                                     Agency

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