Fuzzy Sliding Mode Control Based on Superior Sliding Mode Function for Missile Electro-Hydraulic Servo Mechanism

Aiming at the tracking control problem of missile electro-hydraulic servo mechanism,a design method of fuzzy sliding mode control is presented.The superior sliding mode function is taken as the solitary input of the fuzzy control system,so the structure of the general fuzzy sliding mode control system is simplified. Then a fuzzy sliding mode design method which has a small quantity of rules is obtained.Simulation results indicate that the control approach can decrease the tracking error,enhance the system's robustness and attenuate the high frequency chattering in the control signal.