Implementation of an Extended Model for Multi-Axle Articulated Vehicle with Nonlinear Tire Model

Paper #:
  • 2017-01-0436

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-0436
Citation:
Zhu, T. and Li, B., "Implementation of an Extended Model for Multi-Axle Articulated Vehicle with Nonlinear Tire Model," SAE Technical Paper 2017-01-0436, 2017, doi:10.4271/2017-01-0436.
Pages:
7
Abstract:
A new extended planar model for multi-axle articulated vehicle with nonlinear tire model is presented. This nonlinear multi-axle articulated vehicle model is specifically intended for improving the model performance in operating regimes where tire lateral force is near the point of saturation, and it has the potential to extend the specific axles model to any representative configuration of articulated vehicle model. At the same time, the extended nonlinear vehicle model can reduce the model's sensitivity to the tire cornering coefficients. Firstly, a nonlinear tire model is used in conjunction with the 6-axle planar articulated vehicle model to extend the ranges of the original linear model into the nonlinear regimes of operation. Secondly, the performance analysis of proposed nonlinear vehicle model is verified through the double lane change maneuver on different road adhesion coefficients using TruckSim software. Simulation results demonstrate that the proposed vehicle model shows high accuracy, which provides accurate simulation of the vehicle states on different road adhesion coefficient.
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