Vehicle suspension is a MIMO coupling nonlinear system; its vibration couples that of the tires. When magneto-rheological dampers are adopted to attenuate vibration of the sprung mass, the damping forces of the dampers need to be distributed. For the suspension without decoupling, the vibration attenuation is difficult to be controlled precisely. In order to attenuate the vibration of the vehicle effectively, a nonlinear full vehicle semi-active suspension model is proposed. Considering the realization of the control of magneto-rheological dampers, a hysteretic polynomial damper model is adopted. A differential geometry approach is used to decouple the nonlinear suspension system, so that the wheels and sprung mass become independent linear subsystems and independent to each other. A control rule of vibration attenuation is designed, by which the control current applied to the magneto-rheological damper is calculated, and used for the decoupled suspension system. The simulations show that the acceleration of the sprung mass is attenuated greatly, which indicates that the control algorithm is effective and the hysteretic polynomial damper model is practicable.


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    Title :

    Research on the Decoupling Control Algorithm of Full Vehicle Semi-Active Suspension



    Published in:

    Advanced Materials Research ; 479-481 ; 1355-1360


    Publication date :

    2012-02-27


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Research on the Decoupling Control Algorithm of Full Vehicle Semi-Active Suspension

    Chen, Jian-guo / Cheng, Jun-Sheng / Nie, Yong-Hong | Tema Archive | 2012



    Semi-active suspension control for a full vehicle model

    Crolla,D.A. / Abdel-Hady,M.B. / Univ.of Leeds,GB et al. | Automotive engineering | 1991


    Semi-Active Suspension Control for a Full Vehicle Model

    Crolla, D.A. / Abdel-Hady, M.B.A. | SAE Technical Papers | 1991


    Semi-active suspension control for a full vehicle model

    Crolla, D.A. / Abdel-Hady, M.B.A. | Tema Archive | 1991