Investigation of vehicle stability when changing lanes by complex dynamics model

Abstract

   This article investigates the stability of automobiles when changing lanes based on a complex dynamics model. This model is a combination of spatial dynamics model, nonlinear double-track dynamics model and nonlinear tire model. The input parameters of the simulation problem include velocity and steering angle. The output results obtained are the roll angle, yaw angle, and trajectory of the vehicle, ... The simulation process is performed by MATLAB-Simulink software with two specific cases. The results of the study show that when the vehicle is moving at high speed or steering with a larger steering angle, the change of output values is also larger. This can cause instability of the vehicle when moving in some
special situations. Therefore, it is necessary to determine the travel conditions at each time in order to be able to choose the appropriate steering angle to change lanes.