Chinese Journal of Mechanical Engineering >

2022 , Vol. 35 >Issue 1: 1 - 1

DOI: https://doi.org/10.1186/s10033-021-00666-0

Advanced Transportation Equipment

Adaptive Coordinated Path Tracking Control Strategy for Autonomous Vehicles with Direct Yaw Moment Control

  • Ying Tian ,
  • Qiangqiang Yao ,
  • Peng Hang ,
  • Shengyuan Wang
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  • 1. Beijing Key Laboratory of Powertrain for New Energy Vehicle, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, 100044, China;
    2. School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore

收稿日期: 2021-04-06

  修回日期: 2021-11-24

  网络出版日期: 2022-06-30

基金资助

Supported by the Foundation of Key Laboratory of Vehicle Advanced Manufacturing, Measuring and Control Technology (Beijing Jiaotong University), Ministry of Education, China (Grant No. 014062522006), National Key Research Development Program of China (Grant No. 2017YFB0103701)

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Adaptive Coordinated Path Tracking Control Strategy for Autonomous Vehicles with Direct Yaw Moment Control

  • Ying Tian ,
  • Qiangqiang Yao ,
  • Peng Hang ,
  • Shengyuan Wang
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  • 1. Beijing Key Laboratory of Powertrain for New Energy Vehicle, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, 100044, China;
    2. School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore

Received date: 2021-04-06

  Revised date: 2021-11-24

  Online published: 2022-06-30

Supported by

Supported by the Foundation of Key Laboratory of Vehicle Advanced Manufacturing, Measuring and Control Technology (Beijing Jiaotong University), Ministry of Education, China (Grant No. 014062522006), National Key Research Development Program of China (Grant No. 2017YFB0103701)

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摘要

It is a striking fact that the path tracking accuracy of autonomous vehicles based on active front wheel steering is poor under high-speed and large-curvature conditions. In this study, an adaptive path tracking control strategy that coordinates active front wheel steering and direct yaw moment is proposed based on model predictive control algorithm. The recursive least square method with a forgetting factor is used to identify the rear tire cornering stiffness and update the path tracking system prediction model. To adaptively adjust the priorities of path tracking accuracy and vehicle stability, an adaptive strategy based on fuzzy rules is applied to change the weight coefficients in the cost function. An adaptive control strategy for coordinating active front steering and direct yaw moment is proposed to improve the path tracking accuracy under high-speed and large-curvature conditions. To ensure vehicle stability, the sideslip angle, yaw rate and zero moment methods are used to construct optimization constraints based on the model predictive control frame. It is verified through simulation experiments that the proposed adaptive coordinated control strategy can improve the path tracking accuracy and ensure vehicle stability under high-speed and large-curvature conditions.

关键词： Autonomous vehicles; Path tracking; Model predictive control; Adaptive coordinated

本文引用格式

Ying Tian , Qiangqiang Yao , Peng Hang , Shengyuan Wang . Adaptive Coordinated Path Tracking Control Strategy for Autonomous Vehicles with Direct Yaw Moment Control[J]. Chinese Journal of Mechanical Engineering, 2022 , 35(1) : 1 -1 . DOI: 10.1186/s10033-021-00666-0

Abstract

It is a striking fact that the path tracking accuracy of autonomous vehicles based on active front wheel steering is poor under high-speed and large-curvature conditions. In this study, an adaptive path tracking control strategy that coordinates active front wheel steering and direct yaw moment is proposed based on model predictive control algorithm. The recursive least square method with a forgetting factor is used to identify the rear tire cornering stiffness and update the path tracking system prediction model. To adaptively adjust the priorities of path tracking accuracy and vehicle stability, an adaptive strategy based on fuzzy rules is applied to change the weight coefficients in the cost function. An adaptive control strategy for coordinating active front steering and direct yaw moment is proposed to improve the path tracking accuracy under high-speed and large-curvature conditions. To ensure vehicle stability, the sideslip angle, yaw rate and zero moment methods are used to construct optimization constraints based on the model predictive control frame. It is verified through simulation experiments that the proposed adaptive coordinated control strategy can improve the path tracking accuracy and ensure vehicle stability under high-speed and large-curvature conditions.

Key words： Autonomous vehicles; Path tracking; Model predictive control; Adaptive coordinated

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