FIELD: machine building.
SUBSTANCE: present invention relates to a method and system (100) for estimating the potential friction between a vehicle tyre and a rolling surface., according to which: a first and a second engaged-friction/kinematic-quantity reference curve, corresponding to a first and a second reference value μp1, μp2 of potential friction, with μp2 > μp1; a first and a second kinematic quantity threshold value or a first and a second engaged friction threshold value are determined; engaged friction μ between the tyre and the rolling surface is determined ; a current value of a kinematic quantity between the tyre and the rolling surface is determined; current working point is determined, given by the engaged friction μ and the current value of the kinematic quantity; current value of the kinematic value is compared with the first and second kinematic quantity threshold value or, respectively,the engaged friction μ is compared with the first and second engaged friction threshold values.
EFFECT: technical result is an increase in the accuracy of estimating the friction between the tyre and the rolling surface.
23 cl, 11 dwg, 2 tbl
