基于模糊控制的电动助力转向系统控制方法研究

摘要

基于模糊控制的基本原理及模糊控制器的设计方法，对模糊P ID参数整定的方法进行研究。针对电动助力转向系统，设计了一种模糊自整定PID参数控制策略，利用MATLAB软件对控制算法进行仿真。通过仿真实验，证明了所设计的电动助力转向系统控制算法将 PID控制和模糊控制的简便性、灵活性以及鲁棒性相结合，提高了电动助力转向系统的助力控制性能。%Based on the basic theory and design method of fuzzy control ,parameters adjustment of fuzzy PID is studied .A control strategy of fuzzy PID control arithmetic with self-adjusting parameters is designed for electric power steering system ,and control arithmetic is simulated by MATLAB .The result of the simulation proves the designed control arithmetic of electric power steering system combines simple ,flexible and robust capability of fuzzy control with PID control ,and the power control capability of electric power steering system is improved .