Patent ID: 8626454

Claim:
A method for determining potential friction between a tyre and a rolling surface, a footprint being defined between said tyre and said rolling surface, comprising: rotating the tyre on the rolling surface so as to subject a crown portion of the tyre to an acceleration radial component, according to a radial direction of the tyre; obtaining data representative of the acceleration radial component to which said crown portion is subjected during at least one tyre revolution, said acceleration radial component comprising two regions R drop and a region R in , in which said regions R drop represent two regions in which, due to the entry and exit of said crown portion from the footprint, the acceleration radial component respectively undergoes, in absolute value, an abrupt drop from a maximum value to a value about zero and an abrupt increase from a value about zero to a maximum value, and said region R in represents a region in which, due to the passage of said crown portion within the tyre footprint, the acceleration radial component is about zero; starting from said data, selecting data representative of at least one transition region of said acceleration radial component, said at least one transition region comprising at least one portion of one of said regions R drop , contiguous to said region R in ; processing the selected data so as to obtain information correlated with the steepness of transition of said at least one transition region; and estimating the potential friction on the basis of said information correlated with the steepness of transition.