arXiv:2506.04684cs.ROcs.SY2025-06被引 5

基于LPV的MPC实现自动驾驶车辆实时轨迹跟踪

Real-Time LPV-Based Non-Linear Model Predictive Control for Robust Trajectory Tracking in Autonomous Vehicles

  • 采用LPV状态空间模型与曲率调参优化权重矩阵
  • 高速急弯下横移误差小,实车实验验证性能稳定
  • 适合需要高动态响应的自动驾驶系统开发

本文提出一种用于自动驾驶车辆在多种驾驶条件下进行轨迹跟踪的模型预测控制(MPC)框架。该方法采用模块化架构,集成状态估计、车辆动力学建模与优化,确保实时性。状态空间方程以线性参数变化(LPV)形式构建,并引入基于曲率的权重矩阵调优方法,适应不同轨迹需求。该MPC框架基于机器人操作系统(ROS)实现,支持状态估计与控制优化并行执行,具备可扩展性和低延迟特性。在多个预设轨迹上开展大量仿真与实时实验,结果表明即使在激进操控和高速工况下,系统仍能保持高精度,横移误差和朝向误差极小。仿真与实车表现高度一致,验证了系统的鲁棒性与适应性。本工作为动态权重调整及协同自主导航系统集成奠定基础,有助于提升自动驾驶的安全性与效率。

原文摘要 · Abstract (English)

This paper presents the development and implementation of a Model Predictive Control (MPC) framework for trajectory tracking in autonomous vehicles under diverse driving conditions. The proposed approach incorporates a modular architecture that integrates state estimation, vehicle dynamics modeling, and optimization to ensure real-time performance. The state-space equations are formulated in a Linear Parameter Varying (LPV) form, and a curvature-based tuning method is introduced to optimize weight matrices for varying trajectories. The MPC framework is implemented using the Robot Operating System (ROS) for parallel execution of state estimation and control optimization, ensuring scalability and minimal latency. Extensive simulations and real-time experiments were conducted on multiple predefined trajectories, demonstrating high accuracy with minimal cross-track and orientation errors, even under aggressive maneuvers and high-speed conditions. The results highlight the robustness and adaptability of the proposed system, achieving seamless alignment between simulated and real-world performance. This work lays the foundation for dynamic weight tuning and integration into cooperative autonomous navigation systems, paving the way for enhanced safety and efficiency in autonomous driving applications.

自动驾驶MPCLPV轨迹跟踪

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