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Patent Searching and Data


Title:
MOTOR CONTROL DEVICE AND MOTOR CONTROL DEVICE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2018/056397
Kind Code:
A1
Abstract:
Provided is a motor control device comprising a control unit. The control unit comprises: a gate control voltage output unit that outputs a drive signal on the basis of corrected Hall edges that constitute each of six Hall stages; a counter value acquisition unit that acquires, from the position detection signals, a counter value, which is a time of the Hall stage represented by a time between two Hall edges; and a switching control unit that causes the gate control voltage output unit to output the drive signal on the basis of each of Hall edges obtained by using a second delay time which is for advancing the Hall edges corresponding to a prescribed sensor from among the plurality of sensors, such output for correcting each of Hall edges that have been corrected using a first delay time that is obtained for each of the current Hall edges by multiplying a counter value of each of the previous Hall stages by a predetermined correction coefficient.

Inventors:
IKEDA TAKESHI (JP)
Application Number:
PCT/JP2017/034292
Publication Date:
March 29, 2018
Filing Date:
September 22, 2017
Export Citation:
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Assignee:
MITSUBA CORP (JP)
International Classes:
H02P6/16; H02M7/48
Foreign References:
JP2007259558A2007-10-04
JP2000134979A2000-05-12
JP2015126548A2015-07-06
JP2016185004A2016-09-23
JP2010119220A2010-05-27
JP4724024B22011-07-13
Other References:
See also references of EP 3518415A4
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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