Door opening/closing device and door opening/closing method

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 perf...

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Bibliographic Details
Main Authors Kojima, Ayahito, Watanabe, Yasuyuki
Format Patent
LanguageEnglish
Published 20.11.2018
Subjects
AEROPLANES
AIRCRAFT
AVIATION
CHECKS FOR WINGS
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
COSMONAUTICS
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
ELECTRICITY
FIXED CONSTRUCTIONS
GENERATION
HELICOPTERS
KEYS
LOCKS
PERFORMING OPERATIONS
REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES
SAFES
TRANSPORTING
VEHICLES IN GENERAL
WINDOW OR DOOR FITTINGS
WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES
WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Summary: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.
Bibliography:Application Number: US201414766967