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Event-based control aims at reducing the communication effort within a control loop by closing the feedback only after events have indicated a substantial control error. This paper presents a method to approximate a continuous state-feedback controller by an event-based controller with reduced communication effort such that the closed-loop system has a comparable performance. The relation between the event detector and the closed-loop behaviour shows that the approximation of the closed-loop performance can be made tight by appropriately choosing the threshold parameters used for the event generation. The main focus of this paper lies in the evaluation of the event-based method illustrated by its simulative and experimental application to a thermofluid process.
Lehmann et al. (Sat,) studied this question.