Event-triggered H∞ control for active semi-vehicle suspension system with communication constraints

Abstract

This paper addresses the event-triggered H∞ control problem for an active semi-vehicle suspension (SVS) system with communication constraints. Firstly, the active SVS system is modeled as a networked T-S fuzzy system with limited communication bandwidth, and an event-triggered communication scheme (ETCS) is proposed after the sensor to lower the size of transmitted sampled-data. Since the fully different premises are used in the fuzzy controller and the T-S fuzzy plant, the requirement of the synchronous premises between them in the traditional parallel distribution compensation (PDC) method is no longer needed again. Moreover, by use of the Lyapunov theory and imperfect premise matching method, an event-triggered stability criterion and an event-triggered stabilization condition are derived which ensure the asymptotical stability of the studied system with an H∞ performance. Thanks to the consideration of imperfect premise matching when deducing the criteria above, less conservative results can be derived while enhancing the design flexibility.