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Patent Searching and Data


Title:
MULTI-MOTOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/117222
Kind Code:
A1
Abstract:
The multi-motor system (103) has multiple motor units (106A, 106B). Motor unit (106A) has a motor (116A), a communication circuit (110A) for receiving a command (12A) transmitted from the outside, a control circuit (112A) for generating a control signal for causing the motor to rotate by a control amount specified by the command (12A), and a motor drive circuit (114A) for applying a current to the motor on the basis of the control signal. The command (12A) has control data (C1) indicating the motor control amount in a fixed data length, wherein the control amount is expressed at least by an integer, and position specification data (A1) indicating a decimal point position in the control data. The position specification data (A1) is independently determined for each motor unit.

Inventors:
TABUCHI TETSUYA (JP)
Application Number:
PCT/JP2017/045952
Publication Date:
June 28, 2018
Filing Date:
December 21, 2017
Export Citation:
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Assignee:
NIDEC CORP (JP)
International Classes:
H02P5/46
Domestic Patent References:
WO2016072308A12016-05-12
Foreign References:
JP2005245129A2005-09-08
JP2010266976A2010-11-25
JPH1083215A1998-03-31
US20150012140A12015-01-08
JP2003285954A2003-10-07
Other References:
See also references of EP 3562027A4
Attorney, Agent or Firm:
OKUDA Seiji (JP)
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