华南理工大学学报(自然科学版) ›› 2010, Vol. 38 ›› Issue (1): 108-112,118.doi: 10.3969/j.issn.1000-565X.2010.01.021

• 汽车工程 • 上一篇    下一篇

基于轴间转矩分配的四轮驱动汽车牵引力控制

胡建军 王银 秦大同 丁华   

  1. 重庆大学 机械传动国家重点实验室, 重庆 400044
  • 收稿日期:2009-01-07 修回日期:2009-03-31 出版日期:2010-01-25 发布日期:2010-01-25
  • 通信作者: 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
  • 作者简介: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.
  • 基金资助:

    重庆市自然科学基金重点项目(8718)

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)

摘要: 为提高汽车的牵引性能,通过对轴间转矩分配的分析,建立了四轮驱动汽车加速过程的数学模型;提出了发动机节气门控制和轴间转矩分配控制的综合控制策略;采用PI控制方法设计了发动机节气门控制系统和轴间转矩分配电流控制系统;在低附着路面和对接路面上进行了无牵引力控制和有牵引力控制的对比仿真.结果表明:四轮驱动汽车牵引力控制系统可有效抑制驱动轮过度滑转,提高汽车动力性.

关键词: 四轮驱动汽车, 牵引力控制系统, 转矩分配, 仿真

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