Alarm method for indicating the wear of a tyre with a groove
AssigneesMichelin Recherche et Technique S.A., Societe De Technologie Michelin
InventorAntoine Paturle
Life of this patent
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Abstract
In a method for alerting to the wear of a tyre that includes a tread strip equipped with at least one circumferential groove, the running noise made by the tyre running along a ground is measured, from the measured running noise, a noise emitted in a predetermined range of frequencies close to a predetermined resonant frequency of a portion of the circumferential groove during running is isolated, the amplitude of the isolated noise is measured, and the measured amplitude is compared against a predetermined alert threshold.
Claims9
1-8. (canceled)
A method for alerting to wear of a tyre that includes a tread strip equipped with at least one circumferential groove, the method comprising steps of:
- measuring a running noise made by the tyre running along a ground;
- from the measured running noise, isolating a noise emitted in a predetermined range of frequencies close to a predetermined resonant frequency of a portion of the circumferential groove during running;
- measuring an amplitude of the isolated noise;
- and
- comparing the measured amplitude against a predetermined alert threshold.
Dependencies are inferred from the claim text.