Sensors, Vol. 21, Pages 1539: Nonlinear Ride Height Control of Active Air Suspension System with Output Constraints and Time-Varying Disturbances

Sensors, Vol. 21, Pages 1539: Nonlinear Ride Height Control of Active Air Suspension System with Output Constraints and Time-Varying Disturbances Sensors doi: 10.3390/s21041539 Authors: Rongchen Zhao Wei Xie Jin Zhao Pak Kin Wong Carlos Silvestre 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.
Source: Sensors - Category: Biotechnology Authors: Tags: Letter Source Type: research
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