A number of racing series have seen an influx of motorcycle engines as basic powerplants which incorporate a performance oriented sequential shift transmission. However, due to common placement of the engine behind the driver, shift actuation can often become a difficult design issue. Further, the time of one up-shift can be 500 ms or more when the clutch is used, and manually unloading the transmission to allow shifting does not substantially reduce the time lost.A lightweight, low cost electronic liftless shift system has been designed to overcome the problems of packaging and improve shift speed. The system uses a small 12v DC gearmotor, cam and follower to execute the up-shift and downshift, and a current sensor and programmable IC's are used to automatically unload the drivetrain for liftless up-shifts.


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    Titel :

    A Liftless Electronic 100ms Shift System for Motorcycle-Engined Racecars


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Radford, D. W. (Autor:in) / Scott, E. (Autor:in) / Fitzhorn, P. A. (Autor:in)

    Kongress:

    Motorsports Engineering Conference & Exhibition ; 2002



    Erscheinungsdatum :

    2002-12-02




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    A Liftless Electronic 100ms Shift System for Motorcycle-Engined Racecars

    Radford, D. W. / Scott, E. / Fitzhorn, P. A. et al. | British Library Conference Proceedings | 2002



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