Abstract
In this paper, we deal with solving optimal design problems of a new type active suspension and its control system based on a modified genetic algorithm. The problems aim to pursue the improvement of vibration isolation performance to the limit. We consider simultaneously to optimize a state feedback gain vector of the control system and structural parameters of the suspension, i.e., stiffness of a spring and damping coefficient of a dash pod. As for active suspension of a 1/4 passenger car model, we do to optimize a feedback control gain vector and structural parameters simultaneously. Then, we show to be able to design an active suspension by which a vehicle body hardly receives the influence of road disturbance.
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