Title:
OPENING/CLOSING BODY CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2022102296
Kind Code:
A
Abstract:
To provide an opening/closing body control device capable of mitigating the influence of a reaction force generated when an opening/closing body is closed.SOLUTION: When a window (opening and closing body) reaches a stop position in a closing direction and reaches a locked state where it does not move, a control command for intermittently braking a motor is given to a motor drive unit. Based on this control command, the motor drive unit switches a power supply voltage +B by generating a PWM signal whose duty gradually changes so that a brake period α of the motor gradually becomes longer a the drive period β gradually shortens. At this time, the power supply voltage +B is applied to one terminal T1 of the motor as it is, and the pulse voltage obtained by switching the power supply voltage +B is applied to the other terminal T2 of the motor. Then, when a certain period of time Ya has elapsed, the motor drive unit sets the applied voltage between both terminals of the motor to zero.SELECTED DRAWING: Figure 7
Inventors:
HARADA MASAFUMI
ADACHI MASATO
OZAWA AKISHI
ADACHI MASATO
OZAWA AKISHI
Application Number:
JP2020216953A
Publication Date:
July 07, 2022
Filing Date:
December 25, 2020
Export Citation:
Assignee:
NIDEC MOBILITY CORPORATION
International Classes:
E05F15/689; E05F11/38
Attorney, Agent or Firm:
Okumura Hideyuki