Results of an automotive technology assessment study are presented to provide a basis of comparison for vehicles with alternative power systems. Factors considered include fuel economy, exhaust emissions, multifuel capability, advanced materials, and cost/manufacturability for both conventional and advanced alternative power systems. To insure valid comparisons of vehicles with alternative power systems, the concept of an Otto-Engine-Equivalent (OEE) vehicle is utilized. Each engine type is sized to provide equivalent vehicle performance. Fuel economy projections are made for each engine type considering both the legislated emissions standards (0.4 g/mi HC, 3.4 g/mi CO, 1.0 g/mi NOx) and possible future emissions requirements (0.4 g/mi NOz. The sensitivities of the fuel economy projections to factors such as engine torque boundary, rear axle ratio, performance criteria, and engine transient response are discussed. Using the OEE vehicle concept, projected fuel economies of both small and full-sized vehicles with Stirling engines are up to 40 percent better than baseline vehicles with conventional engines. (DePo)


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    Title :

    Automotive technology projections


    Additional title:

    Entwicklungstendenzen auf dem GNbiet der Kraftfahrzeugtechnik


    Contributors:
    Dowdy, M. (author) / Burke, A. (author)

    Published in:

    Publication date :

    1979


    Size :

    18 Seiten, 17 Bilder, 13 Tabellen, 46 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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