吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (4): 1043-1048.doi: 10.13229/j.cnki.jdxbgxb201504003

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基于灵敏度分析的EPS转向性能试验客观评价指标

张泽星, 陈国迎, 宗长富   

  1. 吉林大学 汽车仿真与控制国家重点实验,长春 130022
  • 收稿日期:2013-12-16 出版日期:2015-07-01 发布日期:2015-07-01
  • 通讯作者: 宗长富(1962-),男,教授,博士生导师.研究方向:汽车仿真与控制.E-mail:378811297@qq.com
  • 作者简介:张泽星(1986-),男,博士研究生.研究方向:汽车仿真与控制.E-mail:zhangzexing.2008@163.com
  • 基金资助:
    “863”国家高技术研究发展计划项目(2012AA110904); 国家自然科学基金项目(51305190)

Objective evaluation indices of steering performance for EPS based on sensitivity analysis

ZHANG Ze-xing, CHEN Guo-ying, ZONG Chang-fu   

  1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
  • Received:2013-12-16 Online:2015-07-01 Published:2015-07-01

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摘要： 基于CarSim和Simulink软件搭建EPS系统与车辆模型联合仿真平台。根据EPS调试经验及实车测量给出 EPS系统参数实际取值范围,并定义灵敏度分析的EPS系统参数的3个变化水平值。通过正交设计极差分析法,采用Isight软件对两个转向性能评价指标与EPS系统参数进行灵敏度分析。同时结合动力学分析,深入剖析EPS系统参数与两个指标之间的影响关系,并通过EPS试验车平台进行了EPS系统参数3个水平值下的实车试验。结果表明灵敏度分析结论符合实车的响应特性,能够有效指导EPS系统参数的调试和标定。

关键词: 车辆工程, EPS, 转向性能, 正交试验, 灵敏度分析, Isight软件, 实车试验

Abstract: A co-simulation platform of Electric Power Steering (EPS) system and vehicle model is built using CarSim and Simulink. Three levels of EPS parameters for sensitivity analysis are defined and their actual ranges are given according to vehicle measurement and debugging experience. The sensitivity analysis of the EPS parameters and two evaluation indices for steering performance is conducted on Isight software by employing orthogonal test and extreme difference analysis method. Meanwhile, using dynamic analysis the interaction relationship among these parameters and indices investigated. Then, the vehicle tests are conducted on the test platform of EPS vehicle under three levels of EPS parameters. Results indicate that the conclusions of sensitivity analysis conform to the response characteristics of the EPS vehicle. The results may provide guidance to debug and calibrate the parameters of EPS.

Key words: vehicle engineering, EPS, steering performance, orthogonal test, sensitivity analysis, Isight software, vehicle test

中图分类号: 

  • U467.1
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