Title: Analysis of dynamic lateral response for a multi-axle-steering tractor and trailer

Authors: Der Ho Wu, Jia Hai

Addresses: National Pintung University of Science and Technology, 1, Hseuh Fu Road, Neipu Hsiang, Pingtung, 91207, Taiwan. ' National Pintung University of Science and Technology, 1, Hseuh Fu Road, Neipu Hsiang, Pingtung, 91207, Taiwan ' '

Abstract: The aim of this study is to present a theoretical analysis of the directional dynamics for an active multi-axle-steering tractor and full-trailer. It can be applied to on-road and off-road vehicles. In this paper, a linear yaw plane model is established to analyse the effect of an additional steering wheel in the front axle of the full-trailer on its performance characteristics, including the directional response simulation during lane change at high speed and a 90-degree turn. The use of additional steering axle on the full-trailer is shown to increase the directional stability, reduce lateral force during steady turning. The control algorithm of multiple steering axles for a tractor and full-trailer front wheels is investigated using the tractor zero sideslip angle criteria. Moreover, the critical speed of the system related to the location of the steer axle for a full-trailer is examined in detail.

Keywords: heavy vehicles; multi-axle steering tractor-trailer combinations; multi-axle steering; multiple-steering axles; tractor-trailer combinations.

DOI: 10.1504/IJHVS.2003.003694

International Journal of Heavy Vehicle Systems, 2003 Vol.10 No.4, pp.281 - 294

Published online: 09 Nov 2003 *

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