Event-triggered control for active vehicle suspension systems with network-induced delays

• Published in: Journal of the Franklin Institute Vol. 356; no. 1; pp. 147 - 172
• Main Authors: Wang, Gang, Chadli, Mohammed, Chen, Haihong, Zhou, Zhijin
• Format: Journal Article
• Language: English
• Published: Elmsford Elsevier Ltd 01.01.2019; Elsevier Science Ltd
• Subjects: Active control; Algorithms; Attenuation; Communications systems; Computer simulation; Control systems; Controllers; Event triggered control; Feedback control; Feedback control systems; Linear matrix inequalities; Mathematical analysis; Matrix methods; Output feedback; Simulation; Suspension systems; Vehicles
• ISSN: 0016-0032; 1879-2693; 0016-0032
• DOI: 10.1016/j.jfranklin.2018.10.012

•A network-based active suspension model with event-triggering mechanism is established.•A new sufficient condition is developed to design the desired event-triggered controller.•A single-step method is employed such that the problem can be solved by the LMI algorithm. This paper presents a novel event-triggered H∞ static output-feedback control for active vehicle suspension systems with network-induced delays. The proposed control schema introduces an event-triggering mechanism in the suspension system such that the communication resources can be significantly saved. By applying some improved slack inequalities and an augmented Lyapunov–Krasovskii functional (LKF), a new design condition expressed in the form of linear matrix inequalities (LMIs) is developed to derive the desired event-triggered controller. The obtained algorithm is then employed to solve the static output-feedback control gain. Compared with the traditional sampled-data H∞ control scheme, the proposed controller is able to provide an enhanced disturbance attenuation level while saving the control cost. Finally, comparative simulation results are provided to show the performance of the proposed event-triggered controller.