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Title:
MOTOR CONTROLLER
Document Type and Number:
Japanese Patent JP2015056919
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To correct a detection value of a current sensor.SOLUTION: A motor controller (15) for controlling a motor system comprising a power converter (13), a smoothing capacitor (14), a three-phase AC motor (14), and a current sensors (14v, 14w) comprises: identification means (156) for identifying a target phase, which is a phase of a second phase voltage command signal, on the basis of three phase voltage command signals (Vu, Vv, Vw) generated from detection values (Iv*, Iw*) of the current sensors, where difference between a signal level of the second phase voltage command signal and that of a first phase voltage command signal having a signal level being not largest and not smallest is largest; and correction means (157v, 157w, 158v, 158w) for correcting a detection value of a current sensor for detecting phase current of the target phase so that inter-terminal voltage (VH) of the smoothing capacitor agrees with a desired voltage value.

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Inventors:
YAMAKAWA JUNJI
OKAMURA SAKAKI
TAKAMATSU NAOYOSHI
Application Number:
JP2013187346A
Publication Date:
March 23, 2015
Filing Date:
September 10, 2013
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
H02P27/04; H02M1/00; H02P6/06; H02P6/08; H02P6/16; H02P6/28; H02P21/00; H02P21/14; H02P21/22; H02P27/08
Domestic Patent References:
JP2010068672A2010-03-25
JP2000217365A2000-08-04
JP2008099542A2008-04-24
JP2006020381A2006-01-19
Attorney, Agent or Firm:
Tatsuo Egami
Koji Yamamoto
Akinobu Nakamura



 
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