汽车电动助力转向系统双模糊控制策略研究  

Research on Dual Fuzzy Control Strategy for Electric Power Steering System

作　　者：王陈宁 陈世军 查长礼 郭玉 WANG Chenning;CHEN Shijun;ZHA Changli;GUO Yu(School of Electronic Engineering and Intelligent Manufacturing,Anqing Normal University,Anqing 246133,China)

机构地区：[1]安庆师范大学,电子工程与智能制造学院,安徽安庆246133

出　　处：《安庆师范大学学报（自然科学版）》2022年第4期29-36,共8页Journal of Anqing Normal University(Natural Science Edition)

基　　金：安徽省高校自然科学研究重点项目(KJ2020A0507,KJ2020A0508);江苏省交通运输与安全保障重点实验室开放基金(TTS201807)。

摘　　要：为满足助力转向系统轻便性和稳定性要求,本文对电动助力转向系统助力特性和目标电流跟踪进行了研究,提出了应用于电动助力转向系统的双模糊控制算法,设计了目标电流模糊控制器和用于跟踪目标电流的模糊PID控制器。为了验证所设计的模糊控制器性能,在Matlab/Simulink仿真环境中对EPS动力学模型和设计的控制器进行了仿真。结果表明,所设计的目标电流模糊控制器能实现预定的助力特性,且所设计的模糊PID控制器能在线调整控制参数,适应性强,具有良好的跟踪性能。To meet requirements for portability and stability of electric power steering system,assist characteristic and target current tracking of the electric power steering system are studied.The dual fuzzy control algorithm applied to electric power steering is proposed.Target current fuzzy controller and fuzzy PID controller used for tracking target current are designed.To verify the performance of the proposed fuzzy controller,the EPS model and the designed controller are simulated in the Matlab/Simulink simulation environment.The simulation results show that the designed target current fuzzy controller can achieve the predefined assist characteristics,and the fuzzy PID controller used to track the target current can adjust the control parameters online,which has strong adaptability and good tracking performance.

关 键 词：电动助力转向 双模糊控制 MATLAB PID 

分 类 号：U461.1[机械工程—车辆工程]