To accurately acquire whether an air pressure of a tire of a wheel is in an abnormal state.SOLUTION: A wheel condition acquisition system acquires a temperature corrected air pressure which is an air pressure when an internal temperature of a tire is a preset temperature set in advance on the basis of a detected air pressure of a tire and a detection temperature for each of a plurality of wheels. When one wheel A of the plurality of wheels has a larger drop amount (positive value) of the temperature corrected air pressure than a drop amount of the temperature corrected air pressure for each of other wheels, one wheel A is determined to be in an abnormal state of the tire air pressure. In a traveling state of a vehicle, the air pressure of a tire drops due to drop in the internal temperature of the tire, therefore, the wheel condition acquisition system can accurately acquire, on the basis of the drop amount of the temperature corrected air pressure whether the air pressure of a tire of a wheel is to be in an abnormal state or not.SELECTED DRAWING: Figure 5

    【課題】車輪がタイヤの空気圧が異常な状態であるか否かを精度よく取得することである。【解決手段】本車輪状態取得システムにおいては、複数の車輪の各々についてのタイヤの検出空気圧と検出温度とに基づいて、それぞれ、タイヤの内部の温度が予め定められた設定温度である場合の空気圧である温度補正空気圧が取得される。そして、複数の車輪のうちの1つの車輪Aについての温度補正空気圧の低下量(正の値)が、他の車輪の各々についての温度補正空気圧の低下量に対して大きい場合に、1つの車輪Aが、タイヤの空気圧が異常な状態であると取得される。車両の走行状態においては、タイヤの内部の温度の低下に起因して空気圧が低下する場合がある。それに対して、本車輪状態取得システムにおいては、温度補正空気圧の低下量に基づくため、車輪がタイヤの空気圧が異常な状態であるか否かを精度よく取得することができる。【選択図】図5


    Access

    Download


    Export, share and cite



    Title :

    WHEEL CONDITION ACQUISITION SYSTEM


    Additional title:

    車輪状態取得システム


    Contributors:

    Publication date :

    2024-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



    WHEEL CONDITION ACQUISITION SYSTEM AND WHEEL CONDITION ACQUISITION METHOD

    KIMURA YOSUKE / YAMADA YOSHIHISA | European Patent Office | 2024

    Free access

    Wheel state acquisition system and wheel state acquisition method

    KIMURA YOSUKE / YAMADA YOSHIHISA | European Patent Office | 2024

    Free access

    Wheel state acquisition system

    KOBAYASHI HIROAKI | European Patent Office | 2024

    Free access

    Wheel operation data acquisition system and acquisition method

    LI XI / ZHU ZHIHUA / XU SHIWEN et al. | European Patent Office | 2020

    Free access

    TRAFFIC CONDITION ACQUISITION SYSTEM

    TORIGOE MINORU / MIYAMOTO TOSHIYA / FUKUYAMA HIROKAZU et al. | European Patent Office | 2023

    Free access