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Title:
ELECTRIC COMPRESSOR CONTROL DEVICE AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/022626
Kind Code:
A1
Abstract:
A control device for a vehicle-mounted electric compressor (11) forming a two-stage compression refrigeration cycle device, said control device being equipped with: a speed reduction control unit (S23) that controls the AC current output to an electric motor to reduce the rotational speed of the electric motor, when the electric compressor is driven in a two-stage compression mode wherein an intermediate pressure refrigerant is introduced into an intermediate pressure port, and there is a request to stop the driving of the electric compressor; a drive-stopping unit (S25) that stops the driving of the electric motor after the rotational speed of the electric motor has been reduced by the speed reduction control unit; and a restart unit (S27) that restarts the compressor the driving of which has been stopped by the drive-stopping unit, when the request to stop the driving has been cancelled.

Inventors:
NAKAMOTO SHINJI (JP)
SAKAI KOJI (JP)
IMURA AKIHIRO (JP)
YAMANAKA AKITOMO (JP)
Application Number:
JP2016/072182
Publication Date:
February 09, 2017
Filing Date:
July 28, 2016
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
F25B1/10; F04B49/02; F25B1/00; F25B1/04
Domestic Patent References:
WO2004083744A12004-09-30
Foreign References:
JP2012181005A2012-09-20
JP2005297706A2005-10-27
JP2008524497A2008-07-10
JP2010196975A2010-09-09
JP2006205959A2006-08-10
JP2003080935A2003-03-19
JP2004042707A2004-02-12
JP2009299945A2009-12-24
Attorney, Agent or Firm:
YOU-I Patent Firm (JP)
Patent business corporation ゆうあい patent firm (JP)
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