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公开(公告)号：US12098972B2
公开(公告)日：2024-09-24
申请号：US17954143
申请日：2022-09-27
CPC分类号： G01M17/02 , B60C11/243 , B60C11/246 , G01N27/72
摘要： A tire wear measurement device detects a magnetic field of a magnetic body embedded in a tread portion of a tire and measures the degree of wear of the tire from a change in the magnetic field. The tire wear measurement device includes a first magnetic field detection portion placed at a position at which the magnetic field of the magnetic body can be detected, and a second magnetic field detection portion disposed at a position at which the intensity of the magnetic field of the magnetic body differs from the intensity at the position at which the first magnetic field detection portion is disposed.
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公开(公告)号：US12083832B2
公开(公告)日：2024-09-10
申请号：US17535207
申请日：2021-11-24
发明人： Heishiro Fudo , Eiji Shinohara , Shinya Ichise , Hiroyuki Tobari , Akihito Yamamoto , Yuki Ono
CPC分类号： B60C11/246 , B60C23/064
摘要： A tire deterioration inferring (estimating) method uses a tire deterioration inferring device placed on the inner surface of a tire. The method has: a deformation velocity measurement step of measuring a tire deformation velocity, which is the deformation velocity of the tire while the tire is rotating, and obtaining time-series changes in the tire deformation velocity; a calculation step of calculating peak values of the tire deformation velocity from the time-series changes in the tire deformation velocity; and an inference step of inferring the degree of the deterioration of the tire by using a first peak value, which is a peak value of the tire deformation velocity before and at the stepping of the tire or at and after the kicking of the tire, the first peak value being in the time-series changes in the tire deformation velocity.
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