Title: Non-linear dynamics mechanism of road vehicle at losing stability in critical cornering situations

Authors: Xiujian Yang; Shuqiao Chen

Addresses: Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming City 650500, China ' Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming City 650500, China

Abstract: This paper studies one of the key techniques to estimate a vehicle's stability limit in critical cornering situations when designing vehicle stability control systems. With this in mind, this study aims to investigate the dynamics mechanism of road vehicle at losing cornering stability in critical situations. In this work, the non-linear dynamics mechanisms of destabilisation in two operating cases, steady-state cornering and non-steady-state cornering, are discussed. For the steady-state cornering destabilising case, the non-linear dynamics feature is characterised by two phases qualitatively. For the non-steady-state cornering destabilising case, the dynamics mechanism is elucidated from the viewpoint of system state evolution. The results presented in this paper may be helpful for the analysis and design of vehicle stability control strategies.

Keywords: vehicle dynamics; vehicle safety; nonlinear dynamics; vehicle stability; bifurcation; critical cornering; vehicle cornering; stability control.

DOI: 10.1504/IJVAS.2014.060099

International Journal of Vehicle Autonomous Systems, 2014 Vol.12 No.2, pp.116 - 140

Received: 08 May 2013
Accepted: 25 Aug 2013
Published online: 27 Oct 2014 *

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