Review of the Research Program of the Partnership for a New Generation of Vehicles Seventh Report (2001) / Chapter Skim
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3. Vehicle Engineering Developments
3. Vehicle Engineering Developments
Pages 71-77
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From page 71... ...
In its last report, the committee recommended greater emphasis on validating PSAT component and overall vehicle predictions, developing emissions modeling capabilities, developing a generic system and subsystem cost model, and increasing fuel cell component and system modeling (NRC, 2000~. During 200071
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From page 72... ...
The committee urges that a framework be developed for using the systems model to assist in cost estimation studies for the internal combustion engine (ICE) and fuel cell HEV systems, and the effort on detailed modeling required to implement effective cost models should be intensified.
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From page 73... ...
In the simplest terms, an HEV power train can be defined as a power propulsion system in which both an engine and an electric motor work together to propel the vehicle. Hybndization allows three distinct design principles to be incorporated into the vehicle: engine downsizing (by using electric power assist)
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From page 74... ...
The FTP fuel economy results are impressive; however, it is also insightful to observe the differences in fuel economy of the two vehicles for the different types of driving, for example, highway driving versus city driving. The Honda Insight is described by its manufacturer as having an integrated motor assist (IMA)
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From page 75... ...
In pursuit of maximum fuel economy, the concept cars incorporated all the design principles allowed by hybridization, namely, engine downsizing, battery-only electric driving at low loads, and regenerative braking. However, the extent to which the individual vehicles are hybridized and the control logic being pursued for each PNGV concept car are quite different.
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From page 76... ...
CONCEPT CARS AND PRODUCTION PROTOTYPES The concept cars introduced in 2000 marked the completion of a major milestone for the PNGV program. Each company designed a car meeting its own vision of how to best approach the challenge of Goal 3 using both proprietary technology and technology developed in the cooperative program.
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From page 77... ...
Each of the companies is considering how to deal with this issue. The logical business decision is to apply derivative forms of the technology developed in the PNGV program to types of vehicles in which the increased costs may be better supported by market forces.
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