A double interaction brush model for snow conditions
Journal article, 2019

Commonly used tire models for vehicle handling simulations are derived on the assumption of a flat and solid surface. Snow surfaces are non-solid and may move under the tire. This results in inaccurate tire models and simulation results that are too far from the true phenomena.

This paper describes a physically motivated tire model that takes the effect of snow shearing into account. The brush tire model approach is used to describe an additional interaction between the packed snow in tire tread pattern voids with the snow road surface. Fewer parameters and low complexity make it suitable for real-time applications.

The presented model is compared with test track tire measurements from a large set of different tires. Results suggest higher accuracy compared with conventional tire models. Moreover, the model is also proven to be capable of correctly predicting the self-aligning torque given the force characteristics.

tire modeling

tire brush model

tire on snow

driving simulator

Author

Artem Kusachov

Chalmers, Mechanics and Maritime Sciences, Vehicle Engineering and Autonomous Systems

Fredrik Bruzelius

Vehicle Dynamics

Chalmers, Mechanics and Maritime Sciences, Vehicle Engineering and Autonomous Systems

Mattias Hjort

The Swedish National Road and Transport Research Institute (VTI)

Bengt J H Jacobson

Vehicle Dynamics

Chalmers, Mechanics and Maritime Sciences, Vehicle Engineering and Autonomous Systems

Tire Science and Technology

0090-8657 (ISSN)

Vol. 47 2 118-140

Areas of Advance

Transport

Infrastructure

ReVeRe (Research Vehicle Resource)

Subject Categories

Vehicle Engineering

DOI

10.2346/tire.18.460404

More information

Latest update

9/26/2019