Title: Ride comfort performance of a non-linear full-car using active suspension system with active disturbance rejection control and input decoupling transformation

Authors: Faried Hasbullah; Waleed F. Faris; Fadly Jashi Darsivan; Mohammad Abdelrahman

Addresses: Faculty of Engineering, Department of Science in Engineering, International Islamic University, Kuala Lumpur, 50728, Malaysia ' Faculty of Engineering, Department of Mechanical Engineering, International Islamic University, Kuala Lumpur, 50728, Malaysia ' Faculty of Engineering, Department of Mechanical Engineering, International Islamic University, Kuala Lumpur, 50728, Malaysia ' Faculty of Engineering, Department of Mechanical Engineering, International Islamic University, Kuala Lumpur, 50728, Malaysia

Abstract: In this paper, active disturbance rejection control (ADRC) and a control method combining ADRC with input decoupling transformation (ADRC-IDT) are proposed to improve ride comfort of a non-linear full-car with active suspension system. Simulation of the model in frequency domain as well as time domain with three types of road profile - speed hump, double bumps and random excitation, as the disturbance to the system is performed to evaluate the performance of the proposed ADRC-IDT in comparison with ADRC and the passive system. Through experimental simulation studies, the ability of the proposed controllers to cope with varying process is investigated. Results show that ADRC-IDT is able to produce comparable performance to a typical ADRC control structure with fewer control parameters.

Keywords: active suspension; ride comfort; ADRC; active disturbance rejection control; input decoupling transformation; non-linear spring; non-linear damper; full-car; ADRC-IDT; ADRC with input decoupling transformation.

DOI: 10.1504/IJHVS.2019.098279

International Journal of Heavy Vehicle Systems, 2019 Vol.26 No.2, pp.188 - 224

Received: 28 Jan 2016
Accepted: 29 Oct 2016
Published online: 11 Mar 2019 *

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