In this paper an optimal suspension system with preview of the road input is synthesized for a quarter car model. The main purpose of control is to combine good vibration isolation characteristics with improved attitude control. The optimal control law is derived using calculus of variation, and consists of three parts. The first part is a full state feedback term that includes integral control acting on the suspension deflection to ensure zero steady-state deflection in response to static body forces and ramp road inputs. The second part is a feedforward part which compensates for the body forces when they can be detected, and the third part depends on previewed road input. The performance of suspension is evaluated in terms of frequency domain characteristics and time response to ramp road input and cornering forces. The effects of each part of the suspension controller on the system behavior are examined.


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    Title :

    Active preview suspension with integral action


    Additional title:

    Integral wirkende, aktiv vorausschauende Radaufhängung


    Contributors:
    Youn, I. (author) / Hac, A. (author)


    Publication date :

    1993


    Size :

    6 Seiten, 5 Bilder, 8 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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