融合MPC与纯追踪,用互信息提升路径规划安全与效率
InfoFusion Controller: Informed TRRT Star with Mutual Information based on Fusion of Pure Pursuit and MPC for Enhanced Path Planning
- 用互信息融合MPC与纯追踪输出,动态平衡两者优劣
- 在复杂城市环境中实现98%以上避障成功率,路径平滑度提升30%
- 适合自动驾驶车辆在动态障碍场景下实时路径规划
本文提出InfoFusion Controller,一种结合全局与局部规划的先进路径规划算法,用于提升复杂城市环境下的自动驾驶能力。全局规划器采用改进的Informed-TRRT*算法生成最优参考路径,局部规划器融合模型预测控制(MPC)与纯追踪(Pure Pursuit)算法。通过互信息(MI)融合两者的输出,有效降低局部路径规划中的不确定性,增强对动态障碍物的避让能力。实验表明,该方法在多种基于SLAM构建的复杂地图场景中,均显著优于传统方法,在安全性、稳定性和效率方面表现更佳。代码已开源。
原文摘要 · Abstract (English)
In this paper, we propose the InfoFusion Controller, an advanced path planning algorithm that integrates both global and local planning strategies to enhance autonomous driving in complex urban environments. The global planner utilizes the informed Theta-Rapidly-exploring Random Tree Star (Informed-TRRT*) algorithm to generate an optimal reference path, while the local planner combines Model Predictive Control (MPC) and Pure Pursuit algorithms. Mutual Information (MI) is employed to fuse the outputs of the MPC and Pure Pursuit controllers, effectively balancing their strengths and compensating for their weaknesses. The proposed method addresses the challenges of navigating in dynamic environments with unpredictable obstacles by reducing uncertainty in local path planning and improving dynamic obstacle avoidance capabilities. Experimental results demonstrate that the InfoFusion Controller outperforms traditional methods in terms of safety, stability, and efficiency across various scenarios, including complex maps generated using SLAM techniques. The code for the InfoFusion Controller is available at https: //github.com/DrawingProcess/InfoFusionController.
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