Title:
CONTROL DEVICE AND VEHICLE AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2016/157774
Kind Code:
A1
Abstract:
This control device (4) detects, in a refrigerant cycle device (2, 102) that has a plurality of evaporators (24A, 24B, 24C, 24D), a frost state or a pre-frost state in the evaporators. The control device controls the temperature of a predetermined representative evaporator among the plurality of evaporators such that a frost assessment temperature (FT), which is the temperature of the representative evaporator or a temperature related to the temperature of the representative evaporator, is less than the temperature of the evaporators other than the representative evaporator (step S30). When the frost assessment temperature is equal to or less than a frost threshold temperature while the representative evaporator is controlled so as to have the lowest temperature among the plurality of evaporators, the control device determines that the plurality of evaporators are in a frost state or a pre-frost state (step S40, step S41). This makes it possible to reduce the number of temperature detection devices used to detect frost in the plurality of evaporators.
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Inventors:
TESHIMA KENJI (JP)
Application Number:
PCT/JP2016/001471
Publication Date:
October 06, 2016
Filing Date:
March 15, 2016
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60H1/32; F25B47/02; F25B5/02
Foreign References:
| JP2014102009A | 2014-06-05 | |||
| JPS5965375U | 1984-05-01 | |||
| JP2005156030A | 2005-06-16 | |||
| JP2012242000A | 2012-12-10 | |||
| JP2008094382A | 2008-04-24 | |||
| JPS62268725A | 1987-11-21 | |||
| JP2002321523A | 2002-11-05 | |||
| JPH0626689A | 1994-02-04 | |||
| JPH10288427A | 1998-10-27 | |||
| JPH04344084A | 1992-11-30 |
Other References:
See also references of EP 3279588A4
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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