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Tire Model And Vehicle Handling
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Sector:
Event:
22nd FISITA Congress
Language:
English
Abstract
The mathematical simulation of road vehicle dynamics under extreme or coupled conditions depends on an accurate tire modelling.
The goal of this study was to develop a simple model taking into account the non linearities and the interactions between longitudinal, transverse and vertical forces in all conditions of road surface and velocity.
The basic concepts are Coulomb's friction law, and the shear stresses between the road and the tire tread rubber, the tread being reduced to its equatorial line linked to the wheel rim by an elastic carcass. The behavior of the friction and elasticity coefficients is derived from experimental and simplified local models.
A vehicle handling simulation program based on this tire model was developed by RENAULT.
Some examples of calculations show the importance of the model for a realistic theoretical study of road vehicle handling.
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Authors
Citation
Ratti, P., "Tire Model And Vehicle Handling," SAE Technical Paper 885009, 1988, https://doi.org/10.4271/885009.Also In
References
- Bernard J.E. Segel L. Wild R.E. “Tire Shear Force Generation during Combined Steering and Braking Maneuvers” SAE 770852
- Pacejka H.B. “Tire Mechanics and its impact on Vehicle Dynamics” International Association for Vehicle Design 1983
- Sakaï H. “Theoretical and Experimental Studies on the Dynamic Properties of Tyres” International Journal of Vehicle Design 1, 2 and 3 1981 3 1982
- Seitz N. Hussmann A.W. “Forces and Displacements in Contact Area of Free-Rolling Tires” SAE 710626
- Lippmann S.A. Oblizajek K.L. “The Distribution of Stress between the Tread and the Road for Freely Rolling Tires” SAE 740072
- Clark S.K. “Mechanics of Pneumatic Tires” U.S. Department of Transportation 1981
- Boulic C. Vasselon P. “Modèle mathématique de véhicule 4×4 pour l'étude du comportement trajectoriel” (Mathematical Model of Four-Wheel Drive Vehicle for the Study of Handling Behavior) ENSAE 1985
- Ratti P. “Modélisation du pneumatique pour l'étude du comportement routier des véhicules automobiles” (Tire Model for the Study of Handling Behavior of Automobile Cars) EWSAM Paris 1986