A door opening/closing device includes: a motor; and a control unit that is configured to control a 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 is configured to perform 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.
Door opening/closing device and door opening/closing method
2018-11-20
Patent
Electronic Resource
English
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / B64C AEROPLANES , Flugzeuge / E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung |
DOOR OPENING/CLOSING DEVICE AND DOOR OPENING/CLOSING METHOD
European Patent Office | 2016
|DOOR OPENING-CLOSING DEVICE AND DOOR OPENING-CLOSING METHOD
European Patent Office | 2016
|DOOR OPENING/CLOSING DEVICE AND DOOR OPENING/CLOSING METHOD
European Patent Office | 2015
|DOOR OPENING/CLOSING DEVICE AND DOOR OPENING/CLOSING METHOD
European Patent Office | 2023
|DOOR OPENING/CLOSING DEVICE AND DOOR OPENING/CLOSING METHOD
European Patent Office | 2023
|