In motorcycle market, there is demand for technology that makes it possible to drive fast safely. One such technology has already been commercialized; control that prevents front lift while enabling maximum acceleration performance. We have developed a more accurate version of this control.In order to maximize acceleration performance, it is necessary to keep front lift angle as close to zero as possible. Reducing output driving force helps to keep the front lift angle low, but if output driving force is reduced too much, it will degrade acceleration performance. Feedback control that reduces output driving force when front lift is detected is effective for optimizing this trade off, but increasing feedback gain too much to reduce front lift angle will cause output driving force to change suddenly, making for a less comfortable ride. In order to solve this problem, we introduced feedforward control that estimates the equilibrium between power and front lift and restricts output driving force. Estimates should be made by measuring the pitching angular acceleration of the actual body of the vehicle in order to correct for error. However when there is no front lift, pitching angular acceleration is always zero so an estimate cannot be made. Therefore when there is no front lift, the open loop estimated from the geometry of the vehicle shall be used as the estimate, to be switched for the closed loop estimate from the actual pitching angular acceleration when front lift is detected.Using the control method, while keeping the front lift angle close to zero, we were able to perform accurate control to meet the demand for maximum acceleration performance without reducing driving force too much.


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    Titel :

    Development of the Anti-Lift-Control for Motorcycle


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Mase, Taiki (Autor:in) / Suzuki, Takashi (Autor:in)

    Kongress:

    SAE/JSAE Small Engine Technology Conference ; 2018



    Erscheinungsdatum :

    2018-10-30




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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