Event-triggered H_∞ control for active seat suspension systems with state delay

Abstract

In this paper, the event-triggered control issue for active seat suspension systems is investigated, which considers the problem of the signal collection and control input in discrete time. An active seat suspension system, a discrete-time event-triggered scheme, and an [Formula: see text] controller are designed at first. Some Lyapunov functions are chosen so that the stability criteria of the considered system are established and the event-triggered scheme and [Formula: see text] controller are obtained. The event-triggered scheme can reduce the workload of data transmission. Both simulation and experimental tests illustrate the effectiveness and advantages of the proposed control approach to improve driving comfort and reduce data transmission compared with the uncontrolled seat suspension system.

Event-triggered state and fault simultaneous estimation for nonlinear systems with time delays

“…Note that the fault estimation problem in the above works is considered with the assumption that the information of the output vectors is required for each sampling instant, which may not be effective in saving communication resources. As reported by Huong et al (2020, 2022), Huong and Trinh (2022), Liu et al (2021), Wang et al (2022), Zhao et al (2022), Li et al (2021), Liu and Huang (2018, 2020) and Zuo et al (2019), event-triggered observer and event-triggered control are useful in eliminating unnecessary sampling and transmission. As a result, fault estimators based on event-triggered observers may be useful in saving communication resources.…”