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Title:
DRIVE DEVICE FOR DYNAMO-ELECTRIC MACHINE, AND METHOD FOR DRIVING
Document Type and Number:
WIPO Patent Application WO/2020/137219
Kind Code:
A1
Abstract:
When driving and controlling a plurality of dynamo-electric machines, in order to improve the efficiency of a system that obtains drive force from the plurality of dynamo-electric machines by varying the torque operation amount of each machine in consideration of the temperature dependency of the loss of each dynamo-electric machine, the present invention comprises a plurality of voltage output devices that output a desired voltage to the plurality of dynamo-electric machines, and a control device that adjusts the output voltage of the voltage output devices, the control device acquiring temperature information for each of the plurality of dynamo-electric machines, selecting a dynamo-electric machine having relatively high efficiency from among the plurality of dynamo-electric machines on the basis of the respective temperature information, and relatively increasing a torque command value for the selected dynamo-electric machine in relation to others of the plurality of dynamo-electric machines.

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Inventors:
KUNIHIRO NAOKI (JP)
SHINOMIYA TAKESHI (JP)
ITO MAKOTO (JP)
Application Number:
PCT/JP2019/044581
Publication Date:
July 02, 2020
Filing Date:
November 13, 2019
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
H02P5/46; B60L3/00; B60L9/18
Domestic Patent References:
WO2014057575A12014-04-17
Foreign References:
JPH0739018A1995-02-07
JP2013165641A2013-08-22
JP2015035874A2015-02-19
JP2018137932A2018-08-30
JP2004201425A2004-07-15
JP2010130726A2010-06-10
JP2013198340A2013-09-30
JPH0538182A1993-02-12
JP2017011872A2017-01-12
JPH07131994A1995-05-19
JPH1169871A1999-03-09
JP2018057185A2018-04-05
JP5060266B22012-10-31
Other References:
See also references of EP 3905511A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY DAI-ICHI KOKUSAI TOKKYO JIMUSHO (JP)
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