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arXiv 2603.27273cs.ROcs.AIcs.SYeess.SY
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通过激光雷达误差下的连续命令融合实现鲁棒的全局-局部行为仲裁

Robust Global-Local Behavior Arbitration via Continuous Command Fusion Under LiDAR Errors

West Virginia University(西弗吉尼亚大学)

Mohamed Elgouhary, Amr S. El-Wakeel

AI总结:

本文提出一种ROS2原生仲裁模块,通过连续融合两个不变且可解释的控制器输出,实现自动驾驶系统在感知不完美和严格实时约束下的全局目标与局部安全反应协调。

摘要:

模块化自动驾驶系统必须在不完美的感知和严格的实时约束下协调全局进步目标与局部安全驱动的反应。本文提出了一种ROS2原生仲裁模块,该模块连续融合两个不变且可解释的控制器输出:基于纯追求的全局参考跟踪控制器和基于反应的激光雷达间隙跟随控制器。在每个控制步骤中,两个控制器提出Ackermann命令,一个通过紧凑特征观测训练的PPO策略预测一个连续的门,产生一个融合的驾驶命令,并附加实际的安全检查。在相同的ROS主题输入和控制速率下,我们实现了一个轻量级的基于采样预测的基准。通过注入激光雷达噪声、延迟和丢包的ROS2损害协议评估鲁棒性,并额外扫描前锥假短程异常值。在可重复的近距离通过场景中,我们报告了安全的成功和失败率以及随感知压力增加的每步端到端控制器运行时间。本研究旨在作为模块化ROS2设置中的命令级鲁棒性评估,而不是作为规划级交互推理的替代。

英文摘要:

Modular autonomous driving systems must coordinate global progress objectives with local safety-driven reactions under imperfect sensing and strict real-time constraints. This paper presents a ROS2-native arbitration module that continuously fuses the outputs of two unchanged and interpretable controllers: a global reference-tracking controller based on Pure Pursuit and a reactive LiDAR-based Gap Follow controller. At each control step, both controllers propose Ackermann commands, and a PPO-trained policy predicts a continuous gate from a compact feature observation to produce a single fused drive command, augmented with practical safety checks. For comparison under identical ROS topic inputs and control rate, we implement a lightweight sampling-based predictive baseline. Robustness is evaluated using a ROS2 impairment protocol that injects LiDAR noise, delay, and dropout, and additionally sweeps forward-cone false short-range outliers. In a repeatable close-proximity passing scenario, we report safe success and failure rates together with per-step end-to-end controller runtime as sensing stress increases. The study is intended as a command-level robustness evaluation in a modular ROS2 setting, not as a replacement for planning-level interaction reasoning.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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