Stabilization of nonlinear systems using event-triggered output feedback controllers
It addresses the practical issue of ensuring a minimum inter-event time in event-triggered control for nonlinear systems, but the approach is incremental.
The paper designs output feedback event-triggered controllers for a class of nonlinear systems, ensuring a minimum inter-transmission time by combining event-triggered and time-triggered control, achieving asymptotic stability.
The objective is to design output feedback event-triggered controllers to stabilize a class of nonlinear systems. One of the main difficulties of the problem is to ensure the existence of a minimum amount of time between two consecutive transmissions, which is essential in practice. We solve this issue by combining techniques from event-triggered and time-triggered control. The idea is to turn on the event-triggering mechanism only after a fixed amount of time has elapsed since the last transmission. This time is computed based on results on the stabilization of time-driven sampled-data systems. The overall strategy ensures an asymptotic stability property for the closed-loop system. The results are proved to be applicable to linear time-invariant (LTI) systems as a particular case.