Observer‐based memory‐event‐triggered controller design for quarter‐vehicle suspension systems subject to deception attacks

• Published in: International journal of robust and nonlinear control Vol. 33; no. 12; pp. 7004 - 7019
• Main Authors: Sun, Xiang, Gu, Zhou, Mu, Xiufeng
• Format: Journal Article
• Language: English
• Published: Bognor Regis Wiley Subscription Services, Inc 01.08.2023
• Subjects: Control systems design; Controllers; deception attacks; Event triggered control; H-infinity control; memory event‐triggered mechanism; observer‐based controller; quarter‐vehicle suspension systems; Road conditions; Sensitivity enhancement; Suspension systems
• ISSN: 1049-8923; 1099-1239
• DOI: 10.1002/rnc.6738

This paper concerns the problem of an observer‐based memory‐event‐triggered controller for quarter‐vehicle suspension systems (SSs) under deception attacks. The observer‐based controller is utilized to solve the difficulty that full state information of quarter‐vehicle SSs cannot be obtained. A memory‐event‐triggered mechanism (METM) considering both network load and observer performance is proposed, where the historical information of the measured output is utilized in the event‐triggered condition and the observer, reducing mal‐triggering events caused by abrupt disturbance and enhancing the sensitivity to deception attacks. Sufficient conditions that guarantees an H∞$$ {H}_{\infty } $$ performance of quarter‐vehicle SSs are presented. Finally, a simulation example under the bump road conditions is provided to validate the effectiveness of the derived controller.