电动转向系统稳定性能与抗干扰性能的研究  

Study on Stability and Disturbance Resistance of Electric Power Steering Control System

作　　者：吴文江[1] 杜彦良 季学武[2] 陈奎元[2] 

机构地区：[1]石家庄铁道学院机械工程分院 [2]清华大学汽车安全与节能国家重点实验室,北京100084

出　　处：《振动工程学报》2004年第2期196-200,共5页Journal of Vibration Engineering

基　　金：江苏省汽车工程重点实验室开放基金资助项目 (编号 :KJS0 10 86 )

摘　　要：对电动转向系统的稳定性进行了研究 ,分析了路面激励干扰、传感器噪声对系统性能的影响 ,并将传统的PD控制算法和 H∞ 控制理论相结合 ,应用于转向控制系统的研究 ,设计了控制器。计算机仿真结果证明 ,所设计的电动转向系统具有良好的稳定性。Stability and disturbance resistance are important performance indices of electric power steering system. The vibration of steering wheel caused by unstable electric power steering system and extra input disturbance has direct influence on the steerability of an automobile. The electric power steering system stability is studied in this paper, and the influence of road disturbance and sensor noise is analysed. H-infinity control theory with classical PD control method is applied to design the control system, and a controller is designed. The computer simulation results prove that the electric power steering control system designed has a good stability, and can attenuate the influence of high frequency road disturbance and torque sensor noise.

关 键 词：电动转向系统 稳定性能 抗干扰性能 汽车 鲁棒性能 

分 类 号：U463.4[机械工程—车辆工程]