Application of robust reliable control algorithm in finite frequency domain for active suspension systems

This paper addresses the reliable control problem of actuator faults and the varied damping coefficient in the finite frequency domain for active suspension systems. First, the model of vehicle active suspension is established, and the general model of actuator fault is adopted. Afterward, according to the characteristic of the model, the design method of robust reliable state feedback controller is adopted for linear parameter-varying systems in finite frequency domain. The result of simulation indicate that the active suspension can work stably for both faults free and actuator faults and robust performances is satisfied. In addition, the ride comfort is improved and the effectiveness of algorithm is illustrated.