Method for checking and/or monitoring the use of a tire
AssigneeCompagnie Generale Des Etablissements Michelin
InventorANTOINE PATURLE
Life of this patent
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Abstract
A method for checking and/or monitoring the use of a tire (1) mounted on a vehicle (7), comprises the following steps: acquisition, by a microphone (10) arranged inside the tire, of an acoustic response of said tire (1) obtained under the effect of a pulsed mechanical stress thereon, and processing of said response in the frequency domain, characterized in that said processing identifies, in the response in the frequency domain, two spectrum spikes situated on either side of a reference frequency corresponding to the first cavity mode of the tire and, as a function of the frequency deviation between the two duly identified spikes, determines information relating to at least one parameter of use of the tire.
Claims14
-13. (canceled)
A method for checking and/or monitoring a use of a tire mounted on a vehicle comprising the following steps:
- acquiring, by a microphone arranged inside the tire, an acoustic response of the tire obtained under an effect of a pulsed mechanical stress on the tire when stopped;
- and
- processing the acoustic response in a frequency domain by a computerized data processing unit,
- wherein the processing of the acoustic response identifies, in a spectrum of the acoustic response in the frequency domain, two spectral spikes situated on either side of a reference frequency corresponding to a first cavity mode of the tire and, as a function of a frequency deviation between the two spectral spikes, determines information concerning at least one parameter of use of the tire.
A system for checking and/or monitoring a use of a tire mounted on a vehicle, the system comprising:
- a microphone arranged inside the tire and suitable for acquiring an acoustic response of the tire to pulsed mechanical stress thereon;
- and
- a computerized data processing unit configured to identify, on the acoustic response in the frequency domain, two spectral spikes situated on either side of a reference frequency corresponding to a first cavity mode, and, as a function of a frequency deviation between the two spectral spikes, determine information relating to at least one parameter of use of the tire.
Dependencies are inferred from the claim text.