Preliminary design studies were performed on four continuously variable transmission (CVT) concepts for use in advanced electric vehicles. A 1700 kg (3750 lb) vehicle with an energy storage flywheel was specified. Requirements of the CVTs were a maximum torque of 450 N-m (330 lb-ft), a maximum output power of 75 kW (100 hp), and a flywheel speed range of 28 000 to 14 000 rpm. The design of each concept was carried through the design layout stage. Power losses were determined over the ranges of operating conditions, and transmission efficiencies were calculated. The design studies were performed under contracts to NASA for DOE by Garrett/AiResearch (toroidal traction CVT), Battelle Columbus Labs (steel V-belt CVT), Kumm Industries (flat belt variable diameter pulley CVT), and Bales-McCoin Tractionmatic (cone-roller traction CVT).


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    Title :

    Design Studies of Continuously Variable Transmissions for Electric Vehicles


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1981



    Publication date :

    1981-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Design Studies of Continuously Variable Transmissions for Electric Vehicles

    R. J. Parker / S. H. Loewenthal / G. K. Fischer | NTIS | 1981


    Design Studies of Continuously Variable Transmissions for Electric Vehicles

    R. J. Parker / S. H. Loewenthal / G. K. Fischer | NTIS | 1981


    Design studies of continuously variable transmissions for electric vehicles

    Parker, R. J. / Loewenthal, S. H. / Fischer, G. K. | NTRS | 1981