Design and Implementation of H∞ Miscellaneous Information Feedback Control for Vehicle Suspension System. (20th May 2019)

• Record Type: Journal Article
• Authors: Wang, Gang; Zhou, Zhijin
• Other Names: Castejón Cristina Academic Editor.
• Is Part Of: Shock and vibration. Volume 2019(2019)
• Publication Date: 2019-05-20
• Subjects: Shock (Mechanics) -- Periodicals; Vibration -- Periodicals; 534.5
• DOI: 10.1155/2019/3736402
• Languages: English
• ISSNs: 1070-9622

Abstract

Abstract : In this paper, we investigate an H ∞ miscellaneous information feedback controller (HMIFC) for active suspension system stabilization. An auxiliary feedback signal is introduced in the control channel via a wireless communication network. Under this scheme, the onboard measured signal and network transmission signal are simultaneously used to improve the control performance. To handle the impact of network-induced delays, a delay-dependent stability criterion for the closed-loop system is derived based on Lyapunov theory and the linear matrix inequality (LMI) method. By considering an augmented Lyapunov–Krasovskii functional (LKF) and a relaxed integral inequality, a new existence condition of the miscellaneous feedback controller can be obtained. Compared with the traditional H ∞ controller, the designed controller can acquire better ride comfort subject to the same constraints. Finally, comparative simulation and experimental results prove the effectiveness of the presented H ∞ miscellaneous information feedback controller.