ℛℒ_1-𝒢𝒫: Safe Simultaneous Learning and Control

09/08/2020 ∙ by Aditya Gahlawat, et al. ∙ 0

We present ℛℒ_1-𝒢𝒫, a control framework that enables safe simultaneous learning and control for systems subject to uncertainties. The two main constituents are Riemannian energy ℒ_1 (ℛℒ_1) control and Bayesian learning in the form of Gaussian process (GP) regression. The ℛℒ_1 controller ensures that control objectives are met while providing safety certificates. Furthermore, ℛℒ_1-𝒢𝒫 incorporates any available data into a GP model of uncertainties, which improves performance and enables the motion planner to achieve optimality safely. This way, the safe operation of the system is always guaranteed, even during the learning transients. We provide a few illustrative examples for the safe learning and control of planar quadrotor systems in a variety of environments.

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