UniTire: Unified Tire Model

doi:10.3901/JME.2016.12.090

Abstract

Abstract: UniTire is a non-linear and non-steady tire model for vehicle dynamic simulation and control, which can describe tire properties accurately under complex conditions. Based on analytical tire model and by adopting the non-dimensional expression, the UniTire model has some unified characteristics Unified definition of slip ratios; unified expression of non-dimensional contact pressure distribution; unified non-dimensional modeling of combined tire forces; unified expression of anisotropic tire friction; unified satisfactory of non-dimensional boundary conditions; unified expression of tire model under different travelling speeds; unified expression of tire steady and non-steady properties; unified expression of camber, turn slip and side slip. UniTire model not only can describe tire properties with high precision under variety of conditions, but also has the capacity of effective extrapolation and prediction. It is able to predict tire properties satisfactorily for combined slip condition, different roads and speeds. According to the modeling ideas of UniTire, the theoretical basis, steady and non-steady model of UniTire model will be introduced, and the capacity of expression and prediction will be validated by some test data.

Key words: non-linear and non-steady, prediction, tire model, UniTire

CLC Number:

TG156

GUO Konghui. UniTire: Unified Tire Model[J]. Journal of Mechanical Engineering, 2016, 52(12): 90-99.

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