Abstract
This paper examines the potential benefits of incorporating active controllers in order to remedy the drawbacks associated with conventional passive suspensions. A methodology to define the performance index, together with the weighting matrices being assigned, are presented in order to achieve optimum ride comfort and the road-handling requirements. Nondeterministic inputs are applied to simulate the road surface conditions more realistically. Stochastical comparisons between the two controllers and passive system are carried out to gain insight into the performance of the controllers. The results demonstrate that an optimal state-feedback controller, when it includes passenger acceleration in the performance index, retains excellent ride comfort and road-handling characteristics.
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