Patent ID: 8342016

Claim:
A method for evaluating the transversal grip of a tire of a first type on a snow-covered ground, comprising the steps of: providing tires of the first type to a wheeled vehicle; driving said wheeled vehicle thus equipped at the transversal grip limit on a snow-covered track comprising at least one turn; producing instantaneous measures of a transversal acceleration of the wheeled vehicle during its travel on the track, wherein said track includes at least two discriminating turns selected such that a time period required for the vehicle to cover each one of said discriminating turns is equal to at least one second, said time period being measured between the end of a phase of growth of the vehicle transversal acceleration starting from a given acceleration threshold and the beginning of a return phase of returning towards said vehicle transversal acceleration threshold; a filtering step of producing transversal acceleration filtered measures by low-pass filtering the transversal acceleration instantaneous measures; and a selection step of identifying, from among the filtered measures, a set of at least one transversal acceleration per discriminating turn, the transversal grip of said tire being rated according to a direct function of the transversal acceleration values obtained with said tire.