To provide a rotation detecting device capable of calculating angle information with relatively little delay.SOLUTION: A rotation angle sensor 30 includes at least three detecting elements 31 to 33 for detecting a change in a physical quantity in accordance with the rotational position of a motor. The rotation angle sensor 30 outputs rotation angle information relating to the number of times of rotation TC of the motor corresponding to a detected value of at least one detecting element. The rotation angle sensor 30 outputs the rotation angle information relating to a rotation angle of the motor corresponding to the detected value of each of the detecting elements 31 to 33 as at least one analog signal and at least one digital signal. A control section 60 includes an absolute angle calculating section 65 and an abnormality determining section 68. The absolute angle calculating section 68 outputs, to a control arithmetic section 69, an absolute angle calculated using a value determined as being correct, out of an analog rotation angle θm_a, which is a rotation angle based on the analog signal, and a digital rotation angle θm_d, which is a rotation angle based on the digital signal.SELECTED DRAWING: Figure 2

    【課題】比較的遅延の少ない角度情報を演算可能な回転検出装置を提供する。【解決手段】回転角センサ30は、モータの回転位置に応じた物理量の変化を検出する少なくとも3つの検出素子31~33を有する。回転角センサ30は、少なくとも1つの検出素子の検出値に応じたモータの回転回数TCに係る回転角情報を出力する。回転角センサ30は、それぞれの検出素子31~33の検出値に応じたモータの回転角に係る回転角情報を、少なくとも1つのアナログ信号および少なくとも1つのデジタル信号として出力する。制御部60は、絶対角演算部65および異常判定部68を有する。絶対角演算部68は、アナログ信号に基づく回転角であるアナログ回転角θm_aまたはデジタル信号に基づく回転角であるデジタル回転角θm_dのうち正常であると判定された値を用いて演算された絶対角を制御演算部69に出力する。【選択図】 図2


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    Title :

    ROTATION DETECTING DEVICE


    Additional title:

    回転検出装置


    Contributors:

    Publication date :

    2023-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B62D MOTOR VEHICLES , Motorfahrzeuge / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen



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