Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (12): 99-104.

• Automotive Engineering • Previous Articles     Next Articles

Acceleration Slip Regulation Control of 4WID Electric Vehicles Based on Fuzzy Road Identification

Li Gang  Zong Chang-fu  Zhang Qiang  Hong Wei   

  1. State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130025,Jilin,China
  • Received:2012-06-11 Revised:2012-09-01 Online:2012-12-25 Published:2012-11-02
  • Contact: 宗长富(1962-)，男，教授，博士生导师，主要从事汽车动态仿真及控制研究． E-mail: cfzong@yahoo．com．cn E-mail:lnitligang @126.com
  • About author:李刚(1979-) ，男，博士生，讲师，主要从事新能源汽车仿真与控制研究．
  • Supported by:

    国家"863”计划项目( 2012AA110904) ; 国家自然科学基金资助项目( 50775096) ; 吉林大学汽车仿真与控制国家重点实验室开放基金资助项目( 20111104) ; 辽宁工业大学校内基金资助项目( 201108)

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Abstract:

Proposed in this paper is an ASR ( Acceleration Slip Regulation) control method based on the fuzzy road identification for 4WID ( Four-Wheel Independent Drive) electric vehicles. In this method,low road adhesion coefficient and slip rate are both estimated higher with fuzzy rules to quickly and accurately identify the road with low adhesion coefficient,and,according to the independent controllability of the drive torque as well as the accessibility of the rotational speed and torque of each wheel,both the road adhesion coefficient and the optimal slip rate are estimated in real time. Thus,the drive torque of each wheel is effectively controlled and the ASR is successfully implemented. Simulation results indicate that the proposed ASR control method helps to quickly and accurately identify the road with low adhesion coefficient,avoid the slip of the driving wheel,and improve the driving stability and power performance of vehicles.

Key words: vehicle engineering, fuzzy theory, four-wheel independent drive, road identification, acceleration slip regulation