arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.12569cs.ROcs.SYeess.SY

Learning Certified Control using Contraction Metric

SRI International(SRI国际);University of Illinois at Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校);Massachusetts Institute of Technology(麻省理工学院)

Dawei Sun, Susmit Jha, Chuchu Fan

英文摘要:

In this paper, we solve the problem of finding a certified control policy that drives a robot from any given initial state and under any bounded disturbance to the desired reference trajectory, with guarantees on the convergence or bounds on the tracking error. Such a controller is crucial in safe motion planning. We leverage the advanced theory in Control Contraction Metric and design a learning framework based on neural networks to co-synthesize the contraction metric and the controller for control-affine systems. We further provide methods to validate the convergence and bounded error guarantees. We demonstrate the performance of our method using a suite of challenging robotic models, including models with learned dynamics as neural networks. We compare our approach with leading methods using sum-of-squares programming, reinforcement learning, and model predictive control. Results show that our methods indeed can handle a broader class of systems with less tracking error and faster execution speed. Code is available at https://github.com/sundw2014/C3M.

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。

↑