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Continuous and discrete-time stability of a robust set-valued nested controller

Abstract : We propose a set-valued controller with a signum multifunction nested inside another one. We prove that the controller is well posed and achieves robust ultimate boundedness in the presence of mismatched, non-vanishing disturbances. Even more, the selected output can be made arbitrarily small. Also, by applying an implicit/explicit Euler scheme similar to the one introduced by Acary et al. for matched disturbances, we derive a selection strategy for the discrete-time implementation of the set-valued control law. Simulations demonstrate that the discrete scheme diminishes chattering substantially, compared with a fully explicit method.
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Contributor : Bernard Brogliato <>
Submitted on : Wednesday, December 5, 2018 - 8:15:57 AM
Last modification on : Tuesday, May 11, 2021 - 11:37:30 AM
Long-term archiving on: : Wednesday, March 6, 2019 - 1:06:14 PM


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  • HAL Id : hal-01944920, version 1


Felix Miranda-Villatoro, Fernando Castaños, Bernard Brogliato. Continuous and discrete-time stability of a robust set-valued nested controller. 2018. ⟨hal-01944920v1⟩



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