Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (1): 108-112,118.doi: 10.3969/j.issn.1000-565X.2010.01.021

• Automotive Engineering • Previous Articles     Next Articles

Traction Control of Four-Wheel Drive Vehicles Based on Inter-Axle Torque Distribution

Hu Jian-jun  Wang Yin  Qin Da-tong  Ding Hua   

  1. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China
  • Received:2009-01-07 Revised:2009-03-31 Online:2010-01-25 Published:2010-01-25
  • Contact: 胡建军（1973-），男，博士，副教授，主要从事车辆动力传动及其综合控制研究． E-mail:hujianjun@cqu．edu．cn
  • About author:胡建军（1973-），男，博士，副教授，主要从事车辆动力传动及其综合控制研究．
  • Supported by:

    重庆市自然科学基金重点项目(8718)

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Abstract:

In order to improve the traction performance of vehicles, a mathematical model describing the acceleration process of four-wheel drive vehicles is established through the analysis of inter-axle torque distribution, and an integrated control strategy is proposed to control both the engine throttle and the inter-axle torque distribution. Then, an engine throttle control system and a current control system for inter-axle torque distribution are designed based on the PI control. Finally, a simulation is performed to compare the vehicle performances with and without traction control on both low-adhesion and docking roads. The results indicate that the proposed traction control system for four-wheel drive vehicles effectively prevents the driving wheel from excessively spinning and improves the dynamic performance of vehicles.

Key words: four-wheel drive vehicle, traction control, torque distribution, simulation