The theory of a discrete-time parametric linear quadratic (PLQ) control is extended to a class of frequency-shaped performance measures. The incorporation of frequency-dependent weighting matrices allows the emphasis or de-emphasis of the importance of the system variables being penalized over specific bands of frequencies. Results are presented for constant-gain and dynamic output feedback configurations of frequency-shaping optimal control. The resultant control is applied to the design of active seat suspension control. The active suspension maximizes ride comfort by discriminatory minimization of average whole-body absorbed power over a band of frequencies that causes the most discomfort to a human being.


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    Title :

    Discrete-time frequency-shaping parametric LQ control with application to active seat suspension control


    Additional title:

    Zeitdiskrete Frequenzformung mit parametrischer linear-quadratischer Regelung und Anwendung zum aktiven Einsatz in der Suspensionspruefung


    Contributors:
    Cheok, K.C. (author) / Hu, H.X. (author) / Loh, N.K. (author)

    Published in:

    Publication date :

    1989


    Size :

    8 Seiten, 19 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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