A torque detecting device and an electric power steering system, of which the size of the body is reduced, are provided. A torque sensor (7) includes a first rotor (31) that is fixed to an input shaft (21) and that has a predetermined shaft angle multiplier, and a second rotor (32) that is fixed to an output shaft (22) and that has a shaft angle multiplier different from that of the first rotor (31). In first to fourth output coils arranged on a stator (30) that is arranged around outer peripheries of the first and second rotors (31, 32), electric signals having different phases are generated on the basis of a variation of a gap between the stator (30) and the first and second rotors (31, 32) due to rotation of the first and second rotors (31, 32). A twist angle of a torsion bar (23), which is coupled between the input shaft (21) and the output shaft (22), is calculated on the basis of the electric signals, and a torque that acts between the input shaft (21) and the output shaft (22) is calculated on the basis of the twist angle.


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    Titel :

    TORQUE DETECTION DEVICE AND ELECTRIC POWER STEERING DEVICE


    Weitere Titelangaben:

    DREHMOMENTERKENNUNGSVORRICHTUNG UND SERVOLENKVORRICHTUNG
    DISPOSITIF DE DÉTECTION DE COUPLE ET DISPOSITIF DE DIRECTION ASSISTÉE


    Beteiligte:
    URA NORITAKE (Autor:in)

    Erscheinungsdatum :

    23.09.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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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