四轮驱动汽车牵引力控制系统控制策略

姜立标; 丘华川; 吴中伟; 刘巍; 程铖

doi:10.13700/j.bh.1001-5965.2015.0689

四轮驱动汽车牵引力控制系统控制策略

doi: 10.13700/j.bh.1001-5965.2015.0689

1.
华南理工大学机械与汽车工程学院, 广州 510640
2. 浙江吉利汽车研究院有限公司, 杭州 311228

基金项目: 国家自然科学基金（50975091）；广东省自然科学基金（9451064101003049）

详细信息

作者简介:
姜立标,男,博士,副教授,硕士生导师。主要研究方向:汽车系统动力学及电子控制。E-mail:jlb620620@163.com;丘华川,男,硕士研究生。主要研究方向:汽车系统动力学及电子控制。E-mail:qhc0327@163.com

通讯作者:
姜立标,E-mail:jlb620620@163.com

中图分类号: U461.1
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- 被引次数: 0
出版历程
- 收稿日期: 2015-10-23
- 修回日期: 2015-12-04
- 网络出版日期: 2016-11-20

Control strategy of traction control system for four-wheel drive vehicle

1.
School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China
2. Zhejiang Geely Automobile Institute Co., Ltd., Hangzhou 311228, China

摘要

摘要: 针对四轮驱动汽车整车动力性和横向稳定性的问题，提出新的目标滑转率计算和修正方法的牵引力控制系统综合控制策略。首先，建立车辆系统各主要部件的数学模型；然后，针对不同工况，利用模糊PID控制技术建立以发动机节气门开度控制、轴间扭矩分配控制和驱动轮制动控制为一体的牵引力控制系统综合控制策略；在车轮目标滑转率的选取方面，提出了最优纵向滑转率查表法，并根据车速以及轮胎侧偏角的大小对目标滑转率进行实时修正；最后，在典型工况下使用MATLAB/Simulink对四轮驱动汽车牵引力控制系统进行离线仿真研究。结果表明：本文所提出的牵引力控制系统控制策略能有效地抑制驱动轮的过度滑转，充分利用路面附着条件，提高汽车纵向驱动稳定性。
- 四轮驱动汽车 /
- 牵引力控制 /
- 目标滑转率 /
- 控制策略 /
- 动力学仿真
Abstract: Aimed at the problem of the vehicle dynamics and lateral stability of four-wheel drive vehicle, the integrated traction control strategy based on a new method of target slip ratio calculation and correction was proposed. First a mathematical model describing the main components of vehicle system was established. In view of different conditions, the traction control system integrated control strategy, which is based on the engine throttle valve control, inter-axis torque distribution control and driving wheel braking-force active control, was built by using fuzzy PID control technology. In the aspect of selection in tire target slip ratio, a lookup method of the optimal longitudinal slip ratio was proposed, and real-time correction of target slip ratio was carried out according to the vehicle velocity and tire slip angle. Finally, research on off-line simulation for four-wheel drive vehicle traction control system in typical conditions was completed by using MATLAB/Simulink software. The results show that the proposed traction control strategy can effectively inhibits the driving wheel from over slipping, fully use the road adhesion conditions and improve the vehicle longitudinal driving stability.
- four-wheel drive vehicle /
- traction control /
- target slip ratio /
- control strategy /
- dynamics simulation

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参考文献(22)

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