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arXiv · 2108.02994

Rollout event-triggered control: reconciling event- and time-triggered control

Stefan Wildhagen·Frank Dürr·Frank Allgöwer
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Abstract

Event-triggered control (ETC) and time-triggered control (TTC), the classical concepts to determine the transmission instants for networked control systems, each come with drawbacks: It is difficult to tune ETC such that a certain bandwidth is respected, whereas TTC cannot adapt the sampling interval to the current state of the control system. In this article, we provide an overview over rollout ETC, a method aimed at reconciling the advantages of ETC and TTC. We unite two variants of rollout ETC under a common framework and present conditions for convergence and compliance with a predefined bandwidth limit. Furthermore, we demonstrate that rollout ETC satisfies a performance bound and that it allows for a very flexible transmission scheduling similar to classical ETC. The mentioned beneficial properties are illustrated through extensive numerical simulations.

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Stefan Wildhagen, Frank Dürr, Frank Allgöwer. 2021-08-06. Rollout event-triggered control: reconciling event- and time-triggered control. https://arxiv.org/abs/2108.02994

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