To determine a revolution direction of a tire, using acceleration in a tire radial direction.SOLUTION: A tire revolution direction determination system, in a vehicle arranged with two tires in a mutually back-to-back state, comprises a first detector and a monitoring unit. A first acceleration sensor, when a revolution speed of the first tire is less than a first speed, detects acceleration in a first direction, and when the speed is above a second speed, detects acceleration in a second direction inclining at a predetermined angle with respect to the first direction. The monitoring unit generates a reference correspondence relation indicating a correspondence relation between change over time and reception strength, determines revolution directions of the tires at the time when a vehicle travels forward, using a result of a comparison between reference acceleration and acceleration included in detected information to make determination with respect to the tire on which the first detector is mounted.SELECTED DRAWING: Figure 4

    【課題】タイヤ径方向の加速度を用いて、タイヤの回転方向を判定する。【解決手段】2つのタイヤが互いに反転された状態で配置された車両のタイヤ回転方向判定システムにおいて、第1検出器と、監視ユニットとを備え、第1加速度センサは、第1タイヤの回転速度が第1速度未満である場合、第1方向の加速度を検出し、第2速度以上である場合、第1方向に対して所定角度傾斜する第2方向の加速度を検出する。監視ユニットは、時間変化と受信強度との対応関係を示す基準対応関係を生成し、基準加速度と、検出情報に含まれる加速度との比較結果を用いて、車両が前進したときのタイヤ回転方向を判定し、第1検出器が取り付けられているタイヤを判定する。【選択図】図4


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    Title :

    TIRE REVOLUTION DIRECTION DETERMINATION SYSTEM


    Additional title:

    タイヤ回転方向判定システム


    Contributors:

    Publication date :

    2023-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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