Title: Study of semi-active suspension control strategy based on driving behaviour characteristics

Authors: Wenshuo Wang; Junqiang Xi

Addresses: School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China ' School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China

Abstract: In this paper, a semi-active suspension control system incorporating driving behaviour characteristics is presented by recognising driver behaviours on the basis of a quarter car model with a magneto-rheological (MR) damper. First, a specific driver model for recognising driver behaviours is developed to accurately recognise drivers' intentions based on driving data from vehicle sensors. Then, by changing the controllable MR damping ratio in real-time based on the outputs of the driver model, the individual driver's expectation of overall comfort or road-holding performance can be satisfied. Furthermore, simulations of the semi-active suspension control strategy with the driver model compared with the simulations without the driver model are conducted using Matlab/Simulink. The simulation results indicate that the proposed semi-active suspension control strategy with embedded driving behaviour characteristics is better suited to the driver's intentions than other control strategies.

Keywords: semi-active suspension; driver modelling; control strategy; driving behaviour characteristics; vehicle suspension; quarter car models; vehicle modelling; magnetorheological damping; MR dampers; driver intentions; ride comfort; road holding performance; simulation.

DOI: 10.1504/IJVD.2015.071070

International Journal of Vehicle Design, 2015 Vol.68 No.1/2/3, pp.141 - 161

Received: 03 Jun 2014
Accepted: 18 Oct 2014
Published online: 11 Aug 2015 *

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