Traffic & Transportation Engineering

Path Tracking Control Strategy of Intelligent Vehicles Based on Force Drive

  • YAO Qiang-Qiang ,
  • TIAN Ying ,
  • WANG Sheng-Yuan ,
  • LIU Jia-Qi ,
  • WANG Cheng-Qiang
Expand
  • Beijing Key Laboratory of Powertrain for New Energy Vehicle,Beijing Jiaotong University,Beijing 100044,China
姚强强(1992-),男,博士生,主要从事车辆动力学及控制、智能驾驶研究

Received date: 2021-01-29

  Revised date: 2021-05-26

  Online published: 2021-09-13

Supported by

Supported by the National Key Research and Development Plan(2017YFB0103701)


Abstract

In order to improve the path tracking control accuracy of intelligent vehicles and ensure vehicle yaw stability and roll stability, a MPC path tracking control strategy based on force drive coordinating optimal front tires lateral force and external yaw moment is proposed under high-speed and large curvature extreme conditions. Aiming at taking full advantage of the non-linear dynamics of tires and improving the response characteristics of the controller, a vehicle state prediction equation based on a time-varying linear tire model is established to predict vehicle states at the MPC control frame. The zero-point moment method is used to ensure the vehicle roller stability at the limit of handling, and the anti-roll MPC path tracking controller is designed based on time-varying state space equation of path tracking control system. In order to verify the effectiveness of the proposed control strategy, experiments were carried out through the CarSim and Matlab/Simulink joint platform. The results show that the controller can ensure the yaw stability and roll stability of the vehicle and reduce the maximum lateral position deviation and heading angle deviation by 14.08% and 4.80%, respectively.

Cite this article

YAO Qiang-Qiang , TIAN Ying , WANG Sheng-Yuan , LIU Jia-Qi , WANG Cheng-Qiang . Path Tracking Control Strategy of Intelligent Vehicles Based on Force Drive[J]. Journal of South China University of Technology(Natural Science), 2022 , 50(2) : 33 -41,57 . DOI: 10.12141/j.issn.1000-565X.210054

Outlines

/