This paper presents a braking controller for electric vehicles which aims to optimize the efficiency of regenerative braking while maintaining the vehicle stability. The three-layer controller distributed the wheel slip ratios between the front and rear axles first and then tracked the reference slip using sliding mode control. The front wheel dynamics was modeled as a dual-input nonlinear system for which a sliding mode controller was designed. A fuzzy parameter adapter was developed to change the sliding gains according to the braking requirement and the vehicle status. With the adapter torque chattering at small reference slip was eliminated. Stability of the controller with fuzzy adapter was theoretically checked. Simulations demonstrate the effectiveness of the controller to increase regenerative efficiency and keep the wheel slip ratios in a desirable range


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    Title :

    Brake control of electric vehicles integrating regenerative brake and vehicle stability regulation


    Contributors:
    Zhou, Lei (author) / Luo, Yugong (author) / Li, Keqiang (author) / Lian, Xiaomin (author)


    Publication date :

    2008


    Size :

    10 Seiten, 15 Bilder, 27 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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