The relevance of friction in vehicle dynamics and therefore for driving safety can be deduced from the fact, that all forces acting on a moving vehicle have to be transferred through its tyres. Using the example of friction this paper reviews targets, methods and results of research work of the tyre to road interface. Some influences on friction, such as road surface characteristics, tyre parameters and a possible lubricant between tyre and road are described. New research methods like an on-board friction detection system and a sensor inside the tyre are shown. In conclusion, the complex interactions of road, tyre and vehicle require an overall conception of research work at the tyre to road interface instead of separate treatment of each component.
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