基于Isight的电动助力转向系统集成优化  

Integrated Optimization of Electric Power Steering System Based on Isight

作　　者：曹艳玲[1] 李鹏帅 

机构地区：[1]河南科技大学车辆与交通工程学院,河南洛阳471003

出　　处：《机械设计与制造》2016年第5期64-67,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(60904023)

摘　　要：为了兼顾整车的操纵稳定性和电动助力转向系统(EPS)参数优化的便利性,采用Isight优化软件和Simulink仿真平台对EPS进行了优化研究。建立了EPS和七自由度整车的集成动力学模型,引用总方差评价方法建立了EPS的多目标优化模型,并基于Isight和Simulink软件完成了EPS和整车模型的集成优化。结果表明,集成七自由度整车模型的EPS系统优化,使得驾驶员转向更加轻便、整车的操纵稳定性得到进一步提升,同时,基于Isight和Simulink平台的集成优化过程省去了目标函数的繁琐推导过程,也使得EPS系统参数的优化更加方便。In order to take account of the vehicle steering stability and the convenience of optimization on the electric power steering system（EPS） parameters,it makes an optimization research on EPS using the Isight optimization software and Simulink platform. It builds the integrated dynamic model of EPS and the automobile model with 7 DOF,and using the total variance evaluation method to establish the multi-objective optimization model of EPS system; furthermore,completes the integrated optimization of EPS and the vehicle model based on the Isight and Simulnk softwares. The results show that the optimization of EPS system integrated the automobile model with 7 DOF makes drivers more portable and handling stability of the vehicle further promoted,at the same time,the integrated optimization based on the Isight and Simulink platforms saves tedious derivation of the objective function process,and also makes the optimization of EPS system parameters more convenient.

关 键 词：操纵稳定性 优化 电动助力转向系统 ISIGHT SIMULINK 七自由度整车模型 

分 类 号：TH16[机械工程—机械制造及自动化]