arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2112.08445eess.SYcs.ROcs.SYmath.DS
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动态环境下具有输入时滞的安全临界控制

Safety-Critical Control with Input Delay in Dynamic Environment

California Institute of Technology(加州理工学院);Budapest University of Technology and Economics(布达佩斯技术与经济大学);University of Michigan(密歇根大学)

Tamas G. Molnar, Adam K. Kiss, Aaron D. Ames, Gábor Orosz

摘要:

赋予非线性系统安全行为在现代控制中越来越重要。对于必须在动态变化的环境中安全运行的实际控制系统,该任务尤其具有挑战性。本文通过建立环境控制障碍函数的概念,提出了动态环境下的安全关键控制框架。即使存在输入延迟,该框架也能够通过考虑系统延迟响应期间环境的演变来保证安全。基础控制合成依赖于预测系统和环境在延迟间隔内的未来状态,具有针对预测误差的鲁棒安全保证。通过简单的自适应巡航控制问题和赛格威平台上更复杂的机器人应用证明了所提出方法的有效性。

英文摘要:

Endowing nonlinear systems with safe behavior is increasingly important in modern control. This task is particularly challenging for real-life control systems that must operate safely in dynamically changing environments. This paper develops a framework for safety-critical control in dynamic environments, by establishing the notion of environmental control barrier functions (ECBFs). The framework is able to guarantee safety even in the presence of input delay, by accounting for the evolution of the environment during the delayed response of the system. The underlying control synthesis relies on predicting the future state of the system and the environment over the delay interval, with robust safety guarantees against prediction errors. The efficacy of the proposed method is demonstrated by a simple adaptive cruise control problem and a more complex robotics application on a Segway platform.

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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