Extended brush tyre model to study rolling loss in vehicle dynamics simulations
by Mohammad Mehdi Davari; Jenny Jerrelind; Annika Stensson Trigell; Lars Drugge
International Journal of Vehicle Design (IJVD), Vol. 73, No. 4, 2017

Abstract: This paper describes a semi-physical tyre model that enables studies of rolling loss in combination with vehicle dynamic simulations. The proposed model, named extended brush tyre model (EBM), takes the effects of driving conditions, wheel alignment, and tyre materials into account. Compared to the basic brush tyre model, EBM includes multiple numbers of lines and bristles as well as integrated rubber elements into the bristles. The force and moment characteristics of the model are shown to have a good correlation with the Magic Formula tyre model and experimental data. The numerically estimated rolling resistance coefficients under different conditions are compared to findings in the literature, FE-simulations and experiments. The model can capture some aspects that are not covered by the available literature and experimental observations such as camber effect on rolling loss. EBM can be used as a platform for future studies of rolling loss optimisation using active chassis control.

Online publication date: Wed, 29-Mar-2017

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