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arXiv 2106.14554cs.ROcs.SYeess.SY
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半自主遥操作机器人主动安全系统

Active Safety System for Semi-Autonomous Teleoperated Vehicles

Technical University of Munich(慕尼黑工业大学);Delft University of Technology(代尔夫特理工大学)

Smit Saparia, Andreas Schimpe, Laura Ferranti

摘要:

自动驾驶汽车可以减少道路交通事故,并提供更安全的交通方式。然而,在将这些车辆部署到市场之前,需要解决关键的技术挑战,例如在复杂的城市环境中的安全导航。远程操作可以帮助从人类操作到完全自动驾驶汽车的平稳过渡,因为它仍然有人类在回路中,为驾驶员提供后备范围。本文提出了一种用于遥控驾驶的主动安全系统(ASS)方法。所提出的方法可以帮助操作员确保车辆在复杂环境中的安全性,即避免与静态或动态障碍物发生碰撞。我们的ASS依赖于一个模型预测控制(MPC)制定控制车辆的横向和纵向动态。通过利用MPC框架处理约束的能力,我们的ASS限制了控制器干预人类操作员命令的横向校正的权限,避免了人类操作员的反直觉驾驶体验。此外,我们设计了一个视觉反馈,以提高操作员的信任的ASS。此外,我们提出了一个MPC的预测时域数据为基础的新的预测显示,以减轻遥操作系统中的大延迟的影响。我们测试了所提出的方法在高保真车辆模拟器的动态障碍物和延迟的存在下的性能。

英文摘要:

Autonomous cars can reduce road traffic accidents and provide a safer mode of transport. However, key technical challenges, such as safe navigation in complex urban environments, need to be addressed before deploying these vehicles on the market. Teleoperation can help smooth the transition from human operated to fully autonomous vehicles since it still has human in the loop providing the scope of fallback on driver. This paper presents an Active Safety System (ASS) approach for teleoperated driving. The proposed approach helps the operator ensure the safety of the vehicle in complex environments, that is, avoid collisions with static or dynamic obstacles. Our ASS relies on a model predictive control (MPC) formulation to control both the lateral and longitudinal dynamics of the vehicle. By exploiting the ability of the MPC framework to deal with constraints, our ASS restricts the controller's authority to intervene for lateral correction of the human operator's commands, avoiding counter-intuitive driving experience for the human operator. Further, we design a visual feedback to enhance the operator's trust over the ASS. In addition, we propose an MPC's prediction horizon data based novel predictive display to mitigate the effects of large latency in the teleoperation system. We tested the performance of the proposed approach on a high-fidelity vehicle simulator in the presence of dynamic obstacles and latency.

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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