Starting from a classification of car transmissions and from the manufacturers requirements, especially for fuel savings, the potential advantages of continuously variables transmissions permitting to associate low engine RPM with high vehicle speed, are shown. The control of the engine, transmission and clutch to reach a given optimum, is explained. Here are given results of simulation or testing of vehicles equipped with a Renault hydrostatic prototype transmission, a 2-mode hydromechanical transmission and a Van Doorne prototype Transmatic. Highway fuel economy trends are quantified in case of substituion of the conventional S.I. engine for Diesel and/or turbocharged engines. (DePo)


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    Title :

    Continuously variable transmissions for cars with high ratio coverage


    Additional title:

    Stufenlos schaltbares Getriebe fuer Personenkraftwagen mit hohem Uebersetzungsverhaeltnis


    Contributors:
    Baudoin, P. (author)

    Published in:

    Publication date :

    1979


    Size :

    12 Seiten, 16 Bilder


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






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