A door opening/closing device includes a motor and a control unit that controls the rotation rate of the motor by pulse-width modulation (PWM) control. The door opening/closing device opens and closes a door of a vehicle with power of the motor. The control unit performs the PWM control on the motor at a PWM frequency set so as to deviate from a resonance point of an installation body on which the motor is installed. The installation body includes a housing unit that houses the motor, a fixing unit that fixes the door opening/closing device to the vehicle, and the vehicle. Thus, it is possible to provide the door opening/closing device that generates a small sound in an opening and closing operation.


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    Title :

    DOOR OPENING/CLOSING DEVICE AND DOOR OPENING/CLOSING METHOD


    Additional title:

    ÖFFNUNGS-/SCHLIESSVORRICHTUNG FÜR EINE TÜR UND TÜRÖFFNUNGS-/SCHLIESSVERFAHREN
    DISPOSITIF ET PROCÉDÉ D'OUVERTURE/FERMETURE DE PORTE


    Contributors:

    Publication date :

    2019-12-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung



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