Event-Based Secure Control of T-S Fuzzy-Based 5-DOF Active Semivehicle Suspension Systems Subject to DoS Attacks

• Published in: IEEE transactions on fuzzy systems Vol. 30; no. 6; pp. 2032 - 2043
• Main Authors: Gu, Zhou, Sun, Xiang, Lam, Hak-Keung, Yue, Dong, Xie, Xiangpeng
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.06.2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Active control; Active semivehicle suspension systems; Cloud computing; Control design; Control systems; Denial of service attacks; event-triggered mechanism (ETM); Fuzzy control; Liapunov functions; Mathematical model; Performance evaluation; Roads; Suspension systems; Suspensions (mechanical systems); Takagi–Sugeno (T–S) fuzzy model; Time delay systems; Tires; valid DoS attack period
• ISSN: 1063-6706; 1941-0034
• DOI: 10.1109/TFUZZ.2021.3073264

This article investigates the problem of resilient secure control of cloud-aided 5-DOF active semivehicle suspension systems (SVSSs). A novel joint model considering both the event-triggered mechanism (ETM) and Denial of Service (DoS) attacks is established. Under such a model, during the active period of DoS attacks, periodic transmission attempt is made to ensure the control system can receive the control information at the earliest time; the ETM turns to be a conventional one when the DoS attack is in sleeping period. Meanwhile, the valid attack period is proposed to address the problem of the DoS attack ending within a sampling period, which is a challenging problem in modeling DoS attacks. Takagi-Sugeno (T-S) fuzzy model is used to characterize the uncertainties of sprung and unsprung mass of SVSSs. By converting the cloud-aided active SVSS into a fuzzy-based switched time-delay system, and using the method of piecewise Lyapunov function, sufficient conditions are derived to ensure the performances of active SVSSs subject to DoS attacks. Finally, the effectiveness of the proposed method is validated by a numerical example of active SVSSs subject to DoS attacks.