Abstract:Aiming at merits and faults of control system between the classical fuzzy and PID, a kind of FuzzyPID hybrid control system was set up. Linear PID controller and fuzzy controller were combined in parallel. The fuzzy control plays a major role in the region that strays from work point distantly, by contrary PID linear control. And aiming at faults of switch about threshold value and single fuzzy set, the hybrid control system based on fuzzy weights controller is proposed. Simulation results show that the capability of hybrid control system based on fuzzy switch is improved and increased.