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A double interaction brush model for snow conditions

Artem Kusachov (Institutionen för tillämpad mekanik, Fordonsteknik och autonoma system) ; Fredrik Bruzelius (Institutionen för tillämpad mekanik, Fordonsteknik och autonoma system) ; Mattias Hjort ; Bengt Jacobson (Institutionen för tillämpad mekanik, Fordonsteknik och autonoma system)
Vehicle System Dynamics (0042-3114). (2016)
[Artikel, refereegranskad vetenskaplig]

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. Introduced parameters and 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.

Nyckelord: tire modeling, driving simulator, tire on snow, tire brush model



Denna post skapades 2016-11-24.
CPL Pubid: 245604

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Fordonsteknik och autonoma system

Ämnesområden

Farkostteknik

Chalmers infrastruktur

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