Provided is a relative position detection device that is able to easily and accurately detect the amount of relative displacement between a permanent magnet part and a magnetic sensor over a wide range, and also able to increase the resolution in the amount of relative displacement, with suppression of a size increase of the permanent magnet part. The relative position detection device includes a permanent magnet part and a magnetic sensor that are arranged so as to be displaceable relative to each other. The magnetic sensor has an upper limit value and a lower limit value of a detectable magnetic flux density. The permanent magnet part includes at least two magnetic pole parts. Each of the two magnetic pole parts is magnetized in a facing direction in which the permanent magnet part and the magnetic sensor face each other. The permanent magnet part has a middle portion including a boundary between the two magnetic pole parts and two non-middle portions adjacent to the respective sides of the middle portion in a relative displacement direction. The permanent magnet part is configured such that the middle portion and, of the two non-middle portions, at least the non-middle portion capable of facing the magnetic sensor satisfy at least one of a requirement concerning a cross-sectional area and a requirement concerning a distance to the magnetic sensor.


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    Title :

    RELATIVE POSITION DETECTION DEVICE, ACCELERATOR POSITION SENSOR AND VEHICLE


    Additional title:

    VORRICHTUNG ZUR BESTIMMUNG DER RELATIVEN POSITION, GASPEDALPOSITIONSSENSOR UND FAHRZEUG
    DISPOSITIF DE DÉTECTION DE POSITION RELATIVE, CAPTEUR DE POSITION D'ACCÉLÉRATEUR ET VÉHICULE


    Contributors:

    Publication date :

    2020-01-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B62K Fahrräder , CYCLES / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen



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