The paper proposes an active front and rear wheel steering control system that simultaneously achieves both lateral acceleration and yaw rate responses always desirable regardless of changes in vehicle dynamics. First the paper describes a method to accurately estimate physical parameters in the four wheel steering vehicle model, including the dynamics of a steering actuator, by applying the maximum likelihood estimation method. Next, the structure of proposed front and rear steering control system is described. This control system has for its purpose to coincide both the lateral acceleration and yaw rate responses of the respective desirable reference models, as well as to make it a robust system against changes in vehicle dynamics and external disturbances. To achieve both objectives, a two-degree-of freedom control system theory is employed. Than the paper shows the viability of the proposed steering control system through computer simulations. Finally, the results of proving ground tests carried out with a test vehicle equipped with a front and rear wheel steering mechanism driven by the digital computer and electric powered actuator are shown. From these results, it was confirmed that the proposed active front and rear wheel steering control system would contribute greatly to the improvement of vehicle handling qualities and preventive safety.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Two degree of freedom/Hinfinity controller synthesis for active four wheel steering vehicles


    Additional title:

    Synthese der Regler mit zwei Freiheitsgraden und mit H<sub>unendlich</sub> für Fahrzeuge mit aktiver Vierradlenkung


    Contributors:
    Horiuchi, S. (author) / Yuhara, N. (author) / Takei, A. (author)


    Publication date :

    1996


    Size :

    18 Seiten, 12 Bilder, 1 Tabelle, 9 Quellen





    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Two Degree of Freedom/H^Controller Synthesis for Active Four Wheel Steering Vehicles

    Horiuchi, S. / Yuhara, N. / Takei, A. et al. | British Library Conference Proceedings | 1996


    Two Degree of Freedom/H Controller Synthesis for Active Four Wheel Steering Vehicles

    HORIUCHI, SHINICHIRO / YUHARA, NAOHIRO / TAKEI, AKIHIKO | Taylor & Francis Verlag | 1996


    Two degree of freedom/H-infinite controller synthesis for active four wheel steering vehicles

    Horiuchi,S. / Yuhara,N. / Takei,A. et al. | Automotive engineering | 1995



    Four-wheel-foot robot without active steering freedom degree and steering control method and system

    CHAI HUI / ZHANG GUOXUAN / ZHU CHUANLE et al. | European Patent Office | 2024

    Free access