In a torque sensor of an electric power steering device, a natural and comfortable feeling to a driver (driver) is achieved by increasing the physical quantity of the torque sensor around the center of the steering wheel (neutral position). A torsion bar (3) for use in the torque sensor includes a core torsion bar (3A) and a tubular torsion bar (3B). The tubular torsion bar (3B) includes a pair of torsion tubular bar parts (3Ba, 3Bb), accommodates the core torsion bar (3A) in its inside, secures both ends of the core torsion bar (3A) in its inside, and the pair of tubular torsion parts (3Ba, 3Bb) mesh and couple each other by meshing teeth, when the core torsion bar (3A) twists a predefined rotational angle, so that a single torsion bar is configured. The elasticity of the tubular torsion bar (3B) is larger than that of the core torsion bar (3A).


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    Titel :

    Torque sensor and electric power steering device


    Beteiligte:
    TSUNODA MIKIHIKO (Autor:in) / OUMI TAMOTSU (Autor:in)

    Erscheinungsdatum :

    2017-01-31


    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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