Title: Assessment of open-loop rollover control of articulated vehicles under different manoeuvres

Authors: S. Rakheja, J.A. Romero, A. Lozano, P.J. Liu, A.K.W. Ahmed

Addresses: CONCAVE Research Centre, Concordia University, Montreal, Quebec, Canada. Mexican Transport Institute, Queretaro, Mexico. Mexican Transport Institute, Queretaro, Mexico. CONCAVE Research Centre, Concordia University, Montreal, Quebec, Canada. CONCAVE Research Centre, Concordia University, Montreal, Quebec, Canada.

Abstract: In this paper, a comprehensive three-dimensional heavy vehicle model is developed to investigate the effectiveness of an open-loop roll instability control. The steering system compliance, roll steer, bump steer, Ackerman steer and wrap steer are incorporated in the vehicle model, along with a comprehensive tyre model and ABS algorithm. Time delays due to a driver|s reaction and the transportation lag of the braking system are characterised by a variable called the reaction delay. The rollover indicators in terms of roll safety factor, tractor and trailer lateral accelerations and roll angles, and the rearmost axle roll angle are investigated for their effectiveness for open-loop roll stability control in various cornering and evasive manoeuvres, road conditions, braking efforts, and different reaction delays.

Keywords: anti-lock brake system; driver reaction delays; open-loop rollover control; potential rollover measures; roll dynamics; roll safety factor; transport lag.

DOI: 10.1504/IJHVS.2002.001176

International Journal of Heavy Vehicle Systems, 2002 Vol.9 No.3, pp.204-222

Available online: 01 Jul 2003 *

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