For vehicles equipped with co-existing active systems of steering, driving and braking, in order to avoid subsystem interferences and further exploit performance improvement potential, a top-down integrated controller with main/servoloop structure is designed. Firstly, a sliding mode controller in the main-loop calculates the generalized stabilizing forces. Then in the servo-loop, a control allocation approach based on constrained quadratic programming is adopted to reasonably and optimally distribute these generalized stabilizing forces to tire force vector, which will be further converted to wheel control torques and active steering angles using inverse tire model and slip controller. Co-simulation of Matlab/Simulink and MSC CarSim clarifies that by directly considering actuator limits, the proposed controller can significantly improve vehicle handling performances.


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    Title :

    A top-down integration approach to vehicle stability control


    Contributors:
    Daofei Li, (author) / Bin Li, (author) / Fan Yu, (author) / Shangqian Du, (author) / Yongchao Zhang, (author)


    Publication date :

    2007-12-01


    Size :

    409402 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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