It is well known that the fuel consumption of a motor vehicle depends on many factors, including vehicle weight, air resistance, rolling resistance, the type of transmission; the engine size and the engine efficiency. Approaches made in the past to reduce fuel consumption were frequently aimed at improving engine efficiency with show revving, medium displacement engines with a low specific power output. This study is concerned with a different approach, based on relatively small engines with a high specific power output. The study investigates the extent to which modern design features such as multi-valve cylinder heads, variable valve timing, or variable intake systems could be used in engine/gearbox/vehicle combinations to significantly improve fuel economy. The effect of using continuously variable transmissions in conjunction with advanced engine designs is also investigated.


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    Title :

    Engine and transmission concepts for future fuel economy requirements


    Additional title:

    Konzepte für Motor- und Kraftübertragung aus der Sicht der Optimierung des künftigen Kraftstoffverbrauchs


    Contributors:
    Gruber, G. (author) / Jordan, W. (author)


    Publication date :

    1990


    Size :

    6 Seiten, 11 Bilder, 2 Tabellen, 5 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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