This paper attempts to clarify the question of what the optimal semi-active suspension is that minimizes a deterministic quadratic performance index. The optimal control law is a time-varying solution that involves three related Riccati equations. The constant Riccati solution (the so-called “clipped optimal” solution) is not optimal, although its performance is generally quite close to that of the time-varying solution. As the time-varying solution cannot be practically implemented, several constant gain sub-optimal solutions are investigated. A new semi-active algorithm, called the “steepest gradient” algorithm, is developed and its performance is shown to be superior to that of the “clipped optimal” solution.


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    Title :

    Semi-Active Control Laws - Optimal and Sub-Optimal


    Contributors:
    TSENG, H.E. (author) / HEDRICK, J.K. (author)

    Published in:

    Vehicle System Dynamics ; 23 , 1 ; 545-569


    Publication date :

    1994-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown



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