Vibration control of suspension system based on a hybrid intelligent control algorithm

Vibration control is a pivotal study subject for vehicle suspension system. In this paper, the physical model of semi-active quarter-coach suspension was established by the base of the theories of Buckingham's Pi theorem. According to the characteristics of the semi-active suspension of diesel-truck, a hybrid intelligent control algorithm-Fuzzy cerebellar model articulation control combined the Fuzzy logic control with cerebellar model articulation control techniques was presented and used to perform online control of semi-active suspension for the first time, novel weight-update laws were derived that guarantee the stability of closed-loop system, both information retrieval and learning rules were described by algebraic equations in matrix form. The results of experiment of closed -loop excited by three typical vibration signals showed that the control strategy proposed here can obviously reduce the value of mean square root of vertical acceleration for semi-active suspension system, compared with the traditional control strategy.

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