汽车工程 ›› 2020, Vol. 42 ›› Issue (2): 191-198.doi: 10.19562/j.chinasae.qcgc.2020.02.008

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极限工况下主动前轮转向汽车稳定性控制*

李绍松1,2, 郭孔辉2, 仇韬2, 陈虹3, 王国栋1, 崔高健1   

  1. 1.长春工业大学机电工程学院,长春 130012;
    2.长春孔辉汽车科技股份有限公司,长春 130000;
    3.吉林大学,汽车仿真与控制国家重点实验室,长春 130025
  • 收稿日期:2018-12-27 出版日期:2020-02-25 发布日期:2020-02-25
  • 通讯作者: 郭孔辉,教授,中国工程院院士,E-mail:guokonghui@gmail.com
  • 基金资助:
    *国家重点研发计划(2017YFB0103700)和吉林省重大科技攻关项目(20170201005GX)资助

Stability Control of Vehicle with Active Front Steering Under Extreme Conditions

Li Shaosong1,2, Guo Konghui2, Qiu Tao2, Chen Hong3, Wang Guodong1, Cui Gaojian1   

  1. 1.School of Mechatronic Engineering, Changchun University of Technology, Changchun 130012;
    2. KH Automotive Technologies (Changchun) Co., Ltd., Changchun 130000;
    3.Jilin University, State Key Laboratory of Automotive Simulation and Control, Changchun 130025
  • Received:2018-12-27 Online:2020-02-25 Published:2020-02-25

摘要: 轮胎对汽车稳定性有重要影响,研究和利用轮胎的非线性特性有助于扩展汽车的稳定域。本文基于非线性轮胎模型,提出一种改进型线性时变模型预测控制(LTV-MPC)方法。该方法能扩展主动前轮转向汽车的稳定范围,提高极限工况下主动前轮转向汽车的稳定性。仿真结果表明,该方法比传统的LTV-MPC方法具有更好的稳定性控制效果。

关键词: 车辆动力学, 稳定性控制, 主动前轮转向, 模型预测控制

Abstract: Tire has an important influence on vehicle stability. Studying and utilizing the nonlinear characteristics of tire is conducive to expanding the stability region of vehicle. In this paper, a modified linear time-varying model predictive control (LTV-MPC) method is proposed based on nonlinear tire model. The proposed method can expand the stability region of the vehicle with active front steering and enhance vehicle stability under extreme conditions. Simulation results show that the proposed method has better control effects than the traditional LTV-MPC

Key words: vehicle dynamics, stability control, active front steering, model predictive control