Title:
POWER CONTROL DEVICE FOR LINEAR ACTUATOR IN DOCKING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/138053
Kind Code:
A1
Abstract:
This power control device is for a linear actuator 10 in a docking device 1 having a six-axis parallel link mechanism 5. A motor driver 11 for controlling the rotational speed of a motor M of the linear actuator 10 on the basis of a load generated in a link 4 comprises: a speed control unit 31 that outputs a current command; a current control unit 32 that converts the current command into a voltage command; and a current command limiter 33 that limits the current command of the speed control unit 31 so that power consumption per one linear actuator 10 becomes not more than 1/6 of a power supply capacity for powering the motor. The docking device 1 can be mounted even on a spacecraft having a small power supply capacity without improving the power supply capacity.
Inventors:
USUKU KOSHIRO (JP)
ISAYAMA MICHIO (JP)
MOCHIGI AKIRA (JP)
NAGAHAMA KENTA (JP)
MASUOKA TADASHI (JP)
KAWATSU KANAME (JP)
ISAYAMA MICHIO (JP)
MOCHIGI AKIRA (JP)
NAGAHAMA KENTA (JP)
MASUOKA TADASHI (JP)
KAWATSU KANAME (JP)
Application Number:
PCT/JP2021/044330
Publication Date:
June 30, 2022
Filing Date:
December 02, 2021
Export Citation:
Assignee:
IHI AEROSPACE CO LTD (JP)
JAPAN AEROSPACE EXPLORATION (JP)
JAPAN AEROSPACE EXPLORATION (JP)
International Classes:
B64G1/64; H02K7/06; H02P5/46
Domestic Patent References:
| WO2020048579A1 | 2020-03-12 | |||
| WO2018180086A1 | 2018-10-04 |
Foreign References:
| US6354540B1 | 2002-03-12 | |||
| JP2015008590A | 2015-01-15 | |||
| JP2016062779A | 2016-04-25 | |||
| JP2018172025A | 2018-11-08 | |||
| CN111547280A | 2020-08-18 |
Attorney, Agent or Firm:
MATOBA, Motonori (JP)
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