Title: Unique approaches to integrating semi-active suspension and active anti-roll bar control systems

Authors: Sergio Guillen; Francis Assadian

Addresses: Department of Mechanical and Aerospace Engineering, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA ' Department of Mechanical and Aerospace Engineering, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA

Abstract: Automated control systems are commonly applied to road vehicles to improve certain dynamic behaviour. Active roll control systems are known to significantly improve roll dynamics (Zhu and Ayalew, 2014). Additionally, there are a multitude of actuation mechanisms which can accomplish this, and each with unique benefits (Buma et al 2010; Mohan et al., 2012). Recent developments in the literature show successful control integration strategies, where one or more actuators are coordinated to achieve the same control objective(s). Improvements on dynamics behaviour and safety (distribution of actuator demands) are some of the benefits of integrating standalone control actuators (Assadian and Aneke, 2006; Her et al., 2013). In this paper, the frequency domain, model-based control design method known as Youla parameterisation is applied to road vehicle models equipped with an active anti-roll bar and continuously controlled suspension dampers (CDC). Using this methodology, this paper demonstrates two novel strategies for integrating CDC with active anti-roll bar (AARB) which accomplish steady-state roll angle reference tracking while improving transient roll motion.

Keywords: Youla parameterisation; continuous damping control; active roll control.

DOI: 10.1504/IJVD.2022.129167

International Journal of Vehicle Design, 2022 Vol.90 No.1/2/3/4, pp.98 - 115

Received: 06 Feb 2021
Accepted: 02 Apr 2022
Published online: 27 Feb 2023 *

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