电动助力转向系统稳定性分析  

Stability analysis for electric power steering system

作　　者：何仁[1] 徐建平[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《江苏大学学报（自然科学版）》2004年第4期294-297,共4页Journal of Jiangsu University：Natural Science Edition

基　　金：江苏省六大人才高峰计划资助项目(E-2002-012)

摘　　要：在建立电动助力转向系统数学模型的基础上,对电动助力转向系统的稳定性进行了分析,应用控制理论推导了电动助力转向系统的稳定性判断条件,分析讨论了影响系统稳定性的结构参数等因素,指出了各影响因素的相应解决办法,为电动助力转向系统及控制器的设计与改进提供了有价值的理论依据 研究表明,对于一个设计定型的电动助力转向系统,各机构部件的许多参数很难改变,可以采用改变电子控制单元中助力增益的方法来使系统稳定工作,即在控制器设计中采用较小的助力增益。Based on the mathematical model of electric power steering system(EPS), the stability of (electric) power steering system is analyzed. The conditions for system stability of EPS are deduced from the control theory. The factors that affect the system stability of EPS are discussed, and the corresponding solutions of the factors are suggested. The result shows that for a given type of EPS, in order to make the (electric) power steering system operate stably, the gain of assist in the electronic control unit (ECU) of EPS should be amended, and from the experimental test, low gain of assist is suggested.

关 键 词：电动助力转向 传递函数 稳定性 试验 

分 类 号：U461.4[机械工程—车辆工程]