To accurately correct a linearity error in a detection value from a magnet type torque sensor.SOLUTION: A torque sensor 1 comprises a storage unit 47c that stores a correction map indicating the relationship between a correction value and a detection value output from a magnetic detection element 47a. When the variation width between a first detection value Tdmax when the relative rotational amount in a first direction between an input shaft 82a and an output shaft 82b reaches the maximum permissible amount, and a second detection value Tdmin when the relative rotational amount in a second direction reaches the maximum permissible amount, is equally divided into four areas, which are defined as a first area R1 to a fourth area R4 in the ascending order from the smallest area, more correction points are set in the first area R1 and the fourth area R4 than the second area R2 and the third area R3.SELECTED DRAWING: Figure 13

    【課題】磁石式トルクセンサの検出値の直線性誤差を精度良く補正する。【解決手段】トルクセンサ1は、磁気検出素子47aが出力する検出値と補正値との間の関係を示す補正マップを記憶した記憶部47cを備える。入力軸82aと出力軸82bとの間の第1方向の相対回転量が最大許容量に達したときの第1検出値Tdmaxと、第2方向の相対回転量が最大許容量に達したときの第2検出値Tdminと、の間の変化幅を4つの領域に等分し、検出値の大小順に小さい順に第1領域R1~第4領域R4と定義した場合に、第2領域R2及び第3領域R3よりも第1領域R1及び第4領域R4に多くの補正点が設定されている。【選択図】図13


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    Title :

    TORQUE SENSOR, AND VEHICLE STEERING DEVICE


    Additional title:

    トルクセンサ及び車両操向装置


    Contributors:
    OTA AKIRA (author) / FUJII HIROTSUYO (author)

    Publication date :

    2024-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / B62D MOTOR VEHICLES , Motorfahrzeuge



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