基于MATLAB的底盘测功机控制系统仿真

底盘测功机是一个复杂的时变非线性、大惯性系统。传统的PID控制对于非线性、时变性的系统难以达到控制精度的要求，而模糊PID控制具有在线自动调整的功能，该文分析了参数对系统性能的影响，并利用MATLAB软件中的SIMU-LINK工具箱进行了仿真，结果显示，模糊PID控制方式具有超调量小、控制精度高、调节速度快等优点，可以实现对PID参数的最佳调整。

Simulation of Chassis Dynamometer Control System Based on MATLAB

The chassis dynamometer is a complex nonlinear and time-varying inertial system.It is dificult for traditional PID con-trol to meet the requirements of precision and it is not fit for nonlinear time-varying system and fuzzy PID control has the func-tion of on-line automatic adjustment.The paper analysis parameters on system performance ,and take advantage of the SIMU-LINK toolbox in MATLAB software for simulation. Results show that the fuzzy PID controller has smaller overshoot control , higher precision speed adjustment,These performances can achieve the best adjustment of the PID parameters.