• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2026, Vol. 62 ›› Issue (8): 462-474.doi: 10.3901/JME.260449

• 特邀专辑:汽车线控底盘 • 上一篇    下一篇

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基于动态稳定边界的智能车辆路径跟踪控制方法

张钰1,2, 王成烨1, 杜甫1,2, 董明明1, 秦也辰1, 毛明1,2   

  1. 1. 北京理工大学机械与车辆学院 北京 100081;
    2. 中国北方车辆研究所槐树岭实验室 北京 100072
  • 收稿日期:2025-01-07 修回日期:2025-08-05 出版日期:2026-04-20 发布日期:2026-06-12
  • 作者简介:张钰,男,1994年出生,博士。主要研究方向为智能车辆动力学控制。E-mail:zhyss_bit@bit.edu.cn;秦也辰(通信作者),男,1988年出生,博士,教授,博士研究生导师。主要研究方向为车辆动力学控制。E-mail:qinyechen@bit.edu.cn
  • 基金资助:
    国家自然科学基金(52502495,52272386,52522218);中国博士后科学基金(2024M764122,2024T171128);国家资助博士后研究人员计划(GZC20233402)资助项目。

Dynamic Region of Stability Integrated Path-tracking Control for Intelligent Vehicles

ZHANG Yu1,2, WANG Chengye1, DU Fu1,2, DONG Mingming1, QIN Yechen1, MAO Ming1,2   

  1. 1. School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081;
    2. Chinese Scholartree Ridge Laboratory, China North Vehicle Research Institute, Beijing 100072
  • Received:2025-01-07 Revised:2025-08-05 Online:2026-04-20 Published:2026-06-12

摘要: 智能车辆路径跟踪控制是保障车辆行车安全与行驶稳定性的关键与核心。时变车速、路面条件影响车辆状态,现有路径跟踪控制方法结合较为保守的稳定性条件触发制动,维持路径跟踪过程中的车辆横向稳定性,存在着极限工况下路径跟踪性能恶化的问题。针对以上问题,结合椭圆几何模型表征车辆系统动态稳定域,构建了椭圆参数与行驶条件间的映射模型,实现车辆系统动态稳定域的显式表征,进而利用仿射变换设计优化问题所需的约束条件,提出基于动态稳定边界的智能车辆路径跟踪控制方法。基于硬件在环平台对所提方法进行了验证,结果显示,所提方法在保障行驶稳定性前提下,减少了车辆在高速、低附着条件下由于制动介入引起的车辆状态波动,并提升车辆路径跟踪精度达25.5%以上,同时满足实时性要求。

关键词: 显式稳定域, 稳定性约束, 稳定裕度, 路径跟踪控制, 智能车辆

Abstract: Intelligent vehicle path tracking control is crucial for ensuring driving safety and stability. Variable speed and road conditions affect the vehicle's states, and current path tracking methods, which trigger braking based on conservative stability conditions, aim to maintain lateral stability during path tracking. However, these methods tend to degrade path tracking performance under extreme conditions. To address this issue, an elliptical geometric model was applied to represent the dynamic stability region of the vehicle system, and a mapping model between elliptical parameters and driving conditions was established, which allowed for an explicit representation of the dynamic stability region of the vehicle system. Using affine transformations, the constraints for the optimization problem were designed, resulting in a dynamic region of stability integrated path-tracking control method. Verification on a hardware-in-the-loop platform showed that the proposed method reduces vehicle states' fluctuations caused by braking interventions under high-speed, low-friction conditions, while improving path tracking accuracy by more than 25.5%, and meeting real-time requirements.

Key words: explicit stability region, stability constraints, stability margin, path-tracking control, intelligent vehicle

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