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

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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

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