Title: Parameter optimisation of a tyre brush model based on test bench measurements

Authors: Balint Szabo

Addresses: Department of Automobiles, Budapest University of Technology and Economics, 6, Stoczek Street, H-1111 Budapest, Hungary

Abstract: Identification of tyre parameters is essential to create an accurate tyre model. This paper describes a measurement and optimisation work as part of a multibody dynamical tyre model development. The tyre model is a modified brush model, which is simplified for planar motions, and extended by tyre mass point to take into account the continuum property of the tyre. In a brush model the most important parameter is the stiffness of the tyre elements. This stiffness should be identified with static tests using a special test bench. With this test bench it was measured both in longitudinal and lateral direction with different inflation pressures and wheel loads. The measured stiffness cannot be used directly in the tyre model; optimisation should be performed as part of the identification process. Finally, validation was performed to check the results of the identification.

Keywords: tyre models; tyre parameters; tyre stiffness measurement; parameter optimisation; tyre test bench; tyre brush models; dynamic modelling.

DOI: 10.1504/IJVSMT.2013.056035

International Journal of Vehicle Systems Modelling and Testing, 2013 Vol.8 No.3, pp.228 - 240

Received: 25 May 2012
Accepted: 02 Dec 2012
Published online: 19 Jul 2014 *

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