Nonlinear Ride Height Control of Active Air Suspension System with Output Constraints and Time-Varying Disturbances
1
School of Mechanical and Electrical Engineering, Guizhou Normal University, Guizhou 550001, China
2
Department of Electrical and Computer Engineering, University of Macau, Macau 999078, China
3
Key Laboratory of Advanced Manufacturing Technology of the Ministry of Education, Guizhou University, Guizhou 550025, China
4
Department of Electromechanical Engineering, University of Macau, Macau 999078, China
*
Author to whom correspondence should be addressed.
†
Carlos Silvestre is on leave from the Instituto Superior Técnico of the Universidade de Lisboa, Portugal.
Academic Editors: Juan A. Cabrera and Maria Gabriella Xibilia
Sensors 2021, 21(4), 1539; https://doi.org/10.3390/s21041539
Received: 7 December 2020 / Revised: 10 February 2021 / Accepted: 19 February 2021 / Published: 23 February 2021
(This article belongs to the Special Issue Advances in Intelligent Vehicle Control)
This paper addresses the problem of nonlinear height tracking control of an automobile active air suspension with the output state constraints and time-varying disturbances. The proposed control strategy guarantees that the ride height stays within a predefined range, and converges closely to an arbitrarily small neighborhood of the desired height, ensuring uniform ultimate boundedness. The designed nonlinear observer is able to compensate for the time-varying disturbances caused by external random road excitation and perturbations, achieving robust performance. Simulation results obtained from the co-simulation (AMESim-Matlab/Simulink) are given and analyzed, demonstrating the efficiency of the proposed control methodology.
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Keywords:
nonlinear height control; active air suspension; output constraints; random road excitation; disturbance observer design
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MDPI and ACS Style
Zhao, R.; Xie, W.; Zhao, J.; Wong, P.K.; Silvestre, C. Nonlinear Ride Height Control of Active Air Suspension System with Output Constraints and Time-Varying Disturbances. Sensors 2021, 21, 1539. https://doi.org/10.3390/s21041539
AMA Style
Zhao R, Xie W, Zhao J, Wong PK, Silvestre C. Nonlinear Ride Height Control of Active Air Suspension System with Output Constraints and Time-Varying Disturbances. Sensors. 2021; 21(4):1539. https://doi.org/10.3390/s21041539
Chicago/Turabian StyleZhao, Rongchen; Xie, Wei; Zhao, Jin; Wong, Pak K.; Silvestre, Carlos. 2021. "Nonlinear Ride Height Control of Active Air Suspension System with Output Constraints and Time-Varying Disturbances" Sensors 21, no. 4: 1539. https://doi.org/10.3390/s21041539
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