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    Tire wear state detection device using waveform data
    1.
    发明授权
    Tire wear state detection device using waveform data 有权

    公开(公告)号：US12214626B2

    公开(公告)日：2025-02-04

    申请号：US17759419

    申请日：2021-01-15

    Applicant: The Yokohama Rubber Co., LTD.

    Inventor： Masahiro Naruse ,  Jun Matsuda ,  Heishiro Fudo ,  Eiji Shinohara ,  Shinya Ichise ,  Hiroyuki Tobari ,  Yuki Ono

    IPC: B60C11/24 ,  B60C23/04 ,  B60C19/00

    Abstract: A wear state detection device includes an element configured to generate voltage based on deformation of a tread portion during tire rotation, a voltage detection unit configured to detect the voltage generated by the element, a speed detection unit configured to detect vehicle speed or tire rotation speed, a storage area configured to store waveform data over time of the voltage detected by the voltage detection unit together with the vehicle speed or the tire rotation speed detected by the speed detection unit, a calculation unit configured to calculate frequency of exceedance of a predetermined threshold value based on the waveform data in a predetermined speed range and a predetermined time period stored in the storage area, and a determination unit configured to determine a progress condition of wear of the tread portion based on the frequency of exceedance of the predetermined threshold value calculated by the calculation unit.

    Tire wear detection apparatus
    2.
    发明授权
    Tire wear detection apparatus 有权

    公开(公告)号：US12145407B2

    公开(公告)日：2024-11-19

    申请号：US17343018

    申请日：2021-06-09

    Applicant: DENSO CORPORATION ,  SOKEN, INC.

    Inventor： Yoichiro Suzuki ,  Takatoshi Sekizawa

    IPC: B60C11/24 ,  G01M17/02 ,  G07C5/02 ,  H04Q9/00 ,  G06V20/56

    Abstract: A tire wear detection apparatus includes a tire side device and a vehicle body side system. The tire side device includes a vibration detection unit, a vehicle speed estimation unit, a signal processing unit, and a first data communication unit. The vibration detection unit is configured to output a detection signal. The vehicle speed estimation unit is configured to estimate the vehicle speed. The signal processing unit is configured to generate wear data. The vehicle body side system includes a second data communication unit and a controller. The controller has a wear determination unit configured to determine a tire wear state based on the wear data. The signal processing unit is configured to acquire the detection signal within a detection signal acquiring range, and calculate a level value of a vibration level of the acquired detection signal within a predetermined frequency range based on a natural frequency of the tire.

    Model for predicting wear and the end of life of a tire
    3.
    发明授权
    Model for predicting wear and the end of life of a tire 有权

    公开(公告)号：US12128714B2

    公开(公告)日：2024-10-29

    申请号：US17413143

    申请日：2019-12-16

    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

    Inventor： Anne-Laure Fraenkel ,  Richard Abinal ,  Nicolas Delias ,  Vincent Dubourg

    IPC: B60C11/24 ,  B60W40/10

    CPC classification number: B60C11/246 ,  B60C11/243 ,  B60W40/10 ,  B60W2552/35

    Abstract: A method for estimating the overall wear of a tire having a crown, the crown comprising a tread having a mean thickness E, the tire delimiting an internal cavity, comprises the following steps: acquiring a transfer function F of the tire on a reference ground depending on influencing factors and the thickness E; acquiring a passage function β of the mounted assembly, said passage function being defined for a section of road; and in a measurement cycle, determining a force FX and a rate of slip g % at the wheel center of the tire, when running in a straight line involving variations in acceleration on the dry section of road; determining a load Z1 experienced by the mounted assembly; determining a temperature T1 of the mounted assembly; and determining an inflation pressure P1 of the internal cavity.

    Check Device
    7.
    发明公开
    Check Device 审中-公开

    公开(公告)号：US20240227459A1

    公开(公告)日：2024-07-11

    申请号：US18256053

    申请日：2021-11-24

    Applicant: Autel Intelligent Technology Corp., Ltd.

    Inventor： Peng LIU

    IPC: B60C11/24 ,  B60T17/22 ,  G01M17/02

    CPC classification number: B60C11/246 ,  B60T17/221 ,  G01M17/027

    Abstract: A check device includes a check device body; and a base, comprising a first base body, a second base body, and a locking mechanism. The check device body is mounted to the first base body; part of the second base body can be accommodated in an inner cavity of the first base body; the second base body can move with respect to the first base body; part of the second base body can be accommodated in or extend out of the inner cavity of the first base body; and the locking mechanism is used for locking the second base body with respect to the first base body, such that the part of the second base body is accommodated in the inner cavity of the first base body, and unlocking the second base body with respect to the first base body, such that the part of the second base body extends out of the inner cavity of the first base body. The check device can be used for checking a brake disc of a vehicle and can also check a tread surface of a tire, and is stable and effective.

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