Fuzzy-PID control in electro-hydraulic proportional valve system

In order to improve non-linear and time variation of electro-hydraulic proportional valve system, the structure work principle are briefly presented, fuzzy-PID control strategy is put forward by the application of fuzzy theory and fuzzy-PID controller is designed, the open-loop simulation is done, the results show fuzzy-PID control strategy which meet preferably the controlled demands, is good real-time performance, fast response, small overshoot