• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2026, Vol. 62 ›› Issue (14): 325-337.doi: 10.3901/JME.260482

• 运载工程 • 上一篇    下一篇

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考虑终端约束的自动驾驶车辆随机管型MPC路径跟踪控制

雍浩楠, 卢少波, 谢文科, 崔天倍, 杨帆   

  1. 重庆大学机械与运载工程学院 重庆 400044
  • 收稿日期:2025-08-01 修回日期:2026-01-02 发布日期:2026-08-29
  • 作者简介:雍浩楠,男,2000年出生,硕士研究生。主要研究方向为车辆动力学与控制。E-mail:202207021122t@stu.cqu.edu.cn;卢少波(通信作者),男,1980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与控制、智能网联汽车。E-mail:lsb@cqu.edu.cn
  • 基金资助:
    国家自然科学基金(51675066)和重庆市科技创新与应用发展专项(CSTB2023TIAD-STX0039)资助项目。

Stochastic Tube MPC Based Automated Vehicle Path Tacking Control Considering Terminal Constraint

YONG Haonan, LU Shaobo, XIE Wenke, CUI Tianbei, YANG Fan   

  1. College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044
  • Received:2025-08-01 Revised:2026-01-02 Published:2026-08-29

摘要: 可靠的路径跟踪功能是自动驾驶技术落地的关键,然而模型不确定性会不可避免的导致路径跟踪性能下降。管型模型预测控制(Tube-based model predictive control,TMPC)是一种有效的解决方案,但面临基于扰动有界假设的过保守性和难以应对大幅值扰动的局限。为此,提出一种考虑终端约束的预瞄随机TMPC (Preview stochastic TMPC,PSTMPC)方法,以减少其保守性并扩大其适用范围。该方法在不确定扰动有界假设的基础上考虑其概率分布特性,引入概率可达集以收紧名义系统约束。同时,在极限工况下结合无限时域和终端不等式约束,以提升控制器处理大幅值扰动的能力。此外,基于预瞄思想提出一种将模型曲率项视为已知控制序列的策略,以充分利用曲率信息、增强跟踪性能。数值计算结果表明,概率可达集能有效放宽名义系统可行域;仿真结果验证了PSTMPC方法在路径跟踪性能上的显著提升;硬件在环试验结果进一步证明了该方法的有效性。

关键词: 自动驾驶, 路径跟踪控制, 模型不确定性, 模型预测控制, 概率约束

Abstract: Reliable path tracking function is the key to the implementation of autonomous driving technology, but model uncertainty will inevitably cause path tracking performance to degrade. tube-based model predictive control(TMPC) is an effective solution, but it faces the limitations of being overly conservative and having difficulty coping with large-value disturbances due to the bounded disturbance assumption. To this end, a preview stochastic TMPC(PSTMPC) method considering terminal constraints is proposed to reduce its conservatism and expand its scope of application. This method considers the probability distribution characteristics of uncertain disturbances based on the bounded assumption and introduces probabilistic reachable sets to tighten the nominal system constraints. At the same time, infinite time domain and terminal inequality constraints are combined under extreme conditions to improve the controller's ability to handle large disturbances. In addition, basedt on the preview idea, a strategy that regards the model curvature term as a known control sequence is proposed to make full use of the curvature information and enhance the tracking performance. Numerical calculation results show that the probability reachable set can effectively broaden the feasible domain of the nominal system. Simulation results verify that the PSTMPC method significantly improves path tracking performance; hardware-in-the-loop experimental results further prove the effectiveness of the method.

Key words: autonomous vehicle, path tracking control, model uncertainty, model predictive control, chance constraints

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