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• W4313490218 abstract "Abstract Usually, it is difficult to build accurate dynamic models for real robots, which makes safety‐critical control a challenge. In this regard, this article proposes a double‐level framework to design safety‐critical controller for robotic systems with uncertain dynamics. The high level planner plans a safe trajectory for low level tracker based on the control barrier function (CBF). First, the high level planning is done independently of the dynamic model by quadratic programs subject to CBF constraint. Afterward, a novel method is proposed to learn the uncertainty of drift term and input gain in nonlinear affine‐control system by a data‐driven Gaussian process (GP) approach, in which the learning result of uncertainty in input gain is associated with CBF. Then, a Gaussian processes‐based control barrier function (GP‐CBF) is designed to guarantee the tracking safety with a lower bound on the probability for the low level tracker. Finally, the effectiveness of the proposed framework is verified by the numerical simulation of UR3 robot." @default.
• W4313490218 created "2023-01-06" @default.
• W4313490218 creator A5027307597 @default.
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• W4313490218 date "2023-01-04" @default.
• W4313490218 modified "2023-10-15" @default.
• W4313490218 title "Safety‐critical control for robotic systems with uncertain model via control barrier function" @default.
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• W4313490218 doi "https://doi.org/10.1002/rnc.6585" @default.
• W4313490218 hasPublicationYear "2023" @default.
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