Title:
CONTROL DEVICE FOR ELECTRIC MACHINE, AND ELECTRIC VEHICLE USING SAME
Document Type and Number:
WIPO Patent Application WO/2017/090350
Kind Code:
A1
Abstract:
The objective of the present invention is to reduce zero-phase current detection errors. This control device is for an electric machine wherein windings are independently connected for each phase, and is equipped with a control unit that controls voltage applied to the electric machine on the basis of a torque instruction value. The control unit is provided with a first period, wherein a zero-phase voltage pulse is output for the purpose of outputting a zero-phase voltage that reduces a zero-phase current determined on the basis of the AC current of each phase, and a second period, wherein the current of each phase flowing in the electric machine is detected. The first period and the second period do not overlap each other.
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Inventors:
ARAKI TAKAHIRO (JP)
MIYAZAKI HIDEKI (JP)
MITSUI TOSHISADA (JP)
MIYAZAKI HIDEKI (JP)
MITSUI TOSHISADA (JP)
Application Number:
PCT/JP2016/081191
Publication Date:
June 01, 2017
Filing Date:
October 21, 2016
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02P27/06; H02P21/22
Foreign References:
| JP2008005688A | 2008-01-10 | |||
| JP2009100599A | 2009-05-07 | |||
| JP2004248377A | 2004-09-02 | |||
| JPH11150986A | 1999-06-02 | |||
| JP2004080975A | 2004-03-11 |
Other References:
See also references of EP 3382889A4
Attorney, Agent or Firm:
TODA Yuji (JP)
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