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Title:
AIR CONDITIONING DEVICE FOR VEHICLE, AND AIR CONDITIONING CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2017/163687
Kind Code:
A1
Abstract:
This air conditioning device for a vehicle is provided with: a refrigerant circuit including a compressor that compresses a refrigerant, a condenser that conducts heat exchange between a high-temperature, high-pressure refrigerant and a cooling liquid dispensed from an engine cooling unit, an expansion valve that expands the high-pressure refrigerant to a low temperature and low pressure, and an evaporator that conducts heat exchange between the cooling liquid to be introduced to the engine cooling unit and the low-temperature, low-pressure refrigerant; a heater core that conducts heat exchange between the cooling liquid, which was heated via heat exchange with the high-temperature, high-pressure refrigerant, and air sent into a vehicle interior; a pressure sensor that detects the pressure of the high-pressure refrigerant flowing between the compressor and the expansion valve; a calculation unit that calculates, on the basis of the pressure detected by the pressure sensor, the temperature of the cooling liquid flowing to the heater core; and a control unit that controls the air conditioning of the vehicle interior on the basis of the temperature of the cooling liquid calculated by the calculation unit.

Inventors:
KODERA YUJI
Application Number:
PCT/JP2017/005867
Publication Date:
September 28, 2017
Filing Date:
February 17, 2017
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B60H1/22; B60H1/03
Domestic Patent References:
WO2015011920A12015-01-29
WO2015098049A12015-07-02
WO2015072126A12015-05-21
Foreign References:
JP2015044569A2015-03-12
JPH02157568A1990-06-18
JPH0914779A1997-01-17
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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