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    • 6. 发明公开
    • METHOD FOR MONITORING A STATUS OF A TYRE
    • US20240017573A1
    • 2024-01-18
    • US18256885
    • 2021-12-22
    • Pirelli Tyre S.p.A.
    • Renan OZELO RODRIGUES DE MELLOAndrea NATTAMassimiliano SALLUSTIMarian PALKA
    • B60C11/24G01M17/02B60C23/06
    • B60C11/246G01M17/02B60C23/061B60C23/065
    • Method (200), and related system (100), for monitoring a status of a tyre (99) fitted on a vehicle, the method (200) comprising: —in a first operative phase with the tyre (99) in a reference status: —during an advancement of the vehicle, acquiring (3) at least one first signal representative of a motion of a crown portion (31) of the tyre (99); —obtaining (4) a first frequency spectrum of the at least one first signal, the first frequency spectrum comprising a first plurality of peaks; —identifying (5) a first determined peak in the first plurality of peaks and determining a first frequency of the first determined peak; —in a second operative phase subsequent to the first operative phase: —during an advancement of said vehicle, acquiring (6) a second signal representative of the motion of the crown portion (31); —obtaining (7) a second frequency spectrum of the second signal, the second frequency spectrum comprising a second plurality of peaks; —identifying (8) a second determined peak in the second plurality of peaks corresponding to the first determined peak in the first plurality of peaks, and determining (9) a second frequency of the second determined peak; —determining (10) a reference frequency as a function of the first frequency of the first determined peak; —determining (11) a current frequency as a function of the second frequency of the second determined peak; —monitoring (12) the status of the tyre (99) based on a comparison between the current frequency and the reference frequency, or between two values of a same physical quantity, the two values being correlated to the current frequency and to the reference frequency respectively, wherein the physical quantity is a mass or a moment of inertia or a stiffness of the tyre (99).