Patent ID: 6561018
Filing Date: 2003-05-13
Classification: B60T

Abstract:
A method for monitoring instantaneous behaviour of a tyre during running of a motor vehicle, comprising the steps of:associating three spatial directions with the tyre; acquiring and storing, at least temporarily, at least one basic reference curve representing variation of a displacement of at least one specified point of the tyre in at least one of the three spatial directions as a function of a spatial position of the at least one specified point during at least one portion of a revolution of the tyre; continuously acquiring first signals representing the spatial position of the at least one specified point during the at least one portion of the revolution of the tyre; deriving from the spatial position signals of the at least one specified point at least one cyclic curve of current operating displacement in the at least one of the three spatial directions as a function of the spatial position of the at least one specified point during the at least one portion of the revolution of the tyre; continuously comparing the at least one cyclic curve of current operating displacement with the at least one basic reference curve; and emitting a second signal depending on results of the comparison; wherein the tyre comprises at least one tread and one casing, wherein the three spatial directions are longitudinal, transverse, and vertical, and wherein the second signal indicates an instantaneous behaviour of the tyre.