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1. 发明申请

WO2022144939A1 METHOD FOR MONITORING A STATUS OF A TYRE 审中-公开
公开(公告)号：WO2022144939A1
公开(公告)日：2022-07-07
申请号：PCT/IT2021/050421
申请日：2021-12-22
申请人： PIRELLI TYRE S.P.A.
发明人： OZELO RODRIGUES DE MELLO, Renan , NATTA, Andrea , SALLUSTI, Massimiliano , PALKA, Marian
IPC分类号： B60C11/24 , B60C23/04 , B60C23/06 , G01M17/02
摘要： 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).

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