Study of fuzzy PID control based on vehicle seat detection system

The detection of vehicle seat Strength and fatigue is closely related to the quality of the car and the safety of the passengers, which requires high accuracy including short response time, little overshoot, few oscillations and small steady-state error. The conventional PID controller can not satisfy the requirement of high accuracy because of its fixed parameters. In view of the poor performance in setting parameters of conventional PID controller, this paper designed a fuzzy PID controller and established the rules of fuzzy control and membership function. Finally this paper conducted MATLAB simulation and experimental verification, whose results of simulation and experiment show that: The fuzzy PID controller has high control precision, the characteristics of high control speed and strong adaptability. It realizes the on-line adjustment of PID control parameters and makes sure that the controlled object have good dynamic and static characteristics.