Analysis of limit forces on the vehicle wheels using an algorithm of Dynamic Square Method

Scientific Conference on Automotive Vehicles and Combustion Engines 2016

Brukalski, M.^1

Institute of Vehicles, Warsaw University of Technology, Poland^1

关键词: Dynamic motions;    Four-wheel drive systems;    Friction force;    Lateral acceleration;    Lateral force;    Longitudinal force;    Vehicle model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/148/1/012002/pdf
DOI  :  10.1088/1757-899X/148/1/012002

来源: IOP

【 摘 要 】

This article presents a method named as Dynamic Square Method (DSM) used for dynamic analysis of a vehicle equipped with a four wheel drive system. This method allows determination of maximum (limit) forces acting on the wheels. Here, the maximum longitudinal forces acting on the wheels are assumed and then used to predict whether they can be achieved by a specific dynamic motion or whether the actual friction forces under a given wheel is large enough to transfer lateral forces. For the analysis of DSM a four wheel vehicle model is used. On the basis of this characteristic it is possible to determine the maximum longitudinal force acting on the wheels of the given axle depending on the lateral acceleration of the vehicle. The results of this analysis may be useful in the development of a control algorithm used for example in active differentials.