Title:
DEVICE AND METHOD FOR CONTROLLING MOTOR
Document Type and Number:
WIPO Patent Application WO/2017/104952
Kind Code:
A1
Abstract:
Disclosed are a device and a method for controlling a motor. According to a specific embodiment of the present invention, as an input shaft of a motor is provided with a low-resolution absolute position detector and an output shaft of the motor is provided with a low-resolution absolute position detector having a resolution greater than or equal to a reduction gear ratio, an absolute position of the input shaft at the point of time when an absolute position of the output shaft becomes 0 is set as an initial offset when an actuator is produced, an offset is defined as the absolute position of the input shaft at the point of time when the motor is driven and thus the absolute position of the output shaft is changed, and the defined offset is derived from a relational expression, which is defined by the initial offset, the absolute position of the input shaft, and the reduction gear ratio, without driving the motor, and the absolute position of a high-resolution output shaft is derived from a relational expression, which is defined by the absolute position of the input shaft received at a predetermined time interval, the derived offset, the absolute position of the output shaft, and the reduction gear ratio, such that it is possible to easily detect an absolute position of the high-resolution output shaft by using a low-price absolute position detector without the modification or addition of an actuator.
Inventors:
SHIN HOCHEOL (KR)
KIM CHANG-HOI (KR)
SEO YONG-CHIL (KR)
PARK JONGWON (KR)
CHOI BYUNG-SEON (KR)
MOON JEIKWON (KR)
KIM CHANG-HOI (KR)
SEO YONG-CHIL (KR)
PARK JONGWON (KR)
CHOI BYUNG-SEON (KR)
MOON JEIKWON (KR)
Application Number:
PCT/KR2016/011120
Publication Date:
June 22, 2017
Filing Date:
October 05, 2016
Export Citation:
Assignee:
KOREA ATOMIC ENERGY RES (KR)
International Classes:
H02P6/16; B25J9/16; H02K7/116; H02K11/00
Foreign References:
| JP5477292B2 | 2014-04-23 | |||
| KR101461627B1 | 2014-11-20 | |||
| KR20060117542A | 2006-11-17 | |||
| KR20140047437A | 2014-04-22 | |||
| JP2008051668A | 2008-03-06 |
Attorney, Agent or Firm:
LEE, Un Cheol (KR)
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