To determine a tire position without using an acceleration sensor.SOLUTION: A tire position determination system determines a position of a first tire installed to a vehicle. The tire position determination system is equipped with a first detection that is attached to the first tire and can transmit a detection signal, a monitoring unit that is configured to receive the detection signal, and a direction sensor that detects a direction in which the vehicle travels. The first detector includes a first terrestrial magnetism sensor that detects terrestrial magnetism generated in a rotational axis direction of the first tire. The first tire has a first side surface. The monitoring unit estimates which direction a normal direction of the first side surface turns, by using the vehicle traveling direction and positive/negative detection values of the first terrestrial magnetism sensor, and executes determination processing for determining the position of the first tire by using an estimation result.SELECTED DRAWING: Figure 3

    【課題】加速度センサを用いずにタイヤ位置を判定することである。【解決手段】車両に装着される第1タイヤの位置を判定するタイヤ位置判定システムである。第1タイヤに取り付けられ、検出信号を送信可能である第1検出器と、検出信号を受信可能に構成された監視ユニットと、車両が進行する方角を検出する方角センサとを備える。第1検出器は、第1タイヤの回転軸方向に発生する地磁気を検出する第1地磁気センサを含む。第1タイヤは、第1側面を有する。監視ユニットは、車両が進行する方角と、第1地磁気センサの検出値の正負とを用いて、第1側面の法線方向がいずれの方向を向いているかを推定し、推定結果を用いて第1タイヤの位置を判定する判定処理を実行する。【選択図】図3


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    Title :

    TIRE POSITION DETERMINATION SYSTEM AND TIRE ROTATION ANGLE DETERMINATION SYSTEM


    Additional title:

    タイヤ位置判定システム、タイヤ回転角度判定システム


    Contributors:

    Publication date :

    2023-05-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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