Study of a steering model for 4-axle 8×8 off road vehicles
by Yun-Jui Chung; Chung-Hsien Chuang; Yung-Chi Chang; Tyng Liu
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 27, No. 5, 2020

Abstract: The purpose of this study is to establish a steering model for a 4-axle 8×8 vehicle, which provides the design of the assisted steering system. To obtain the best steering performance, this system aims to minimise the turning radius. In this study, the steady-state mathematical steering model of this vehicle is established and the actual physical parameters are added to this model. By actually driving the vehicle, the model is verified and the results show that the model can accurately predict the steering behaviour of the vehicle. After correction, the model is added to assist the steering of the fourth axle and find the optimal steering mode. To evaluate the design, this model inputs the functions of time and steering wheel angle and outputs the tracks of driving this vehicle. We verify the steering assistance design of this vehicle by comparing the driving tracks with and without it.

Online publication date:: Tue, 17-Nov-2020

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