Title:
VEHICLE AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/147039
Kind Code:
A1
Abstract:
Provided is a vehicle air-conditioning device capable of providing stable air-conditioning control for the passenger compartment even if the ratio of outside air to inside air flowing into an air circulation path is changed. A control device implements a first operation mode in which the refrigerant discharged from a compressor 1 is caused to flow to an external heat exchanger 7 and release heat through the external heat exchanger, the refrigerant from which heat is released is decompressed, and, thereafter, and a heat absorber 9 is made to absorb heat. The control device estimates a heat absorber suction air temperature Tevain, which is the temperature of air flowing into the heat absorber 9, on the basis of the ratio of outside air to inside air adjusted by a suction switching damper 26, and controls the rotational speed of the compressor 2 on the basis of the estimated heat absorber suction air temperature Tevain.
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Inventors:
MIYAKOSHI RYO (JP)
YAMASHITA KOUHEI (JP)
YAMASHITA KOUHEI (JP)
Application Number:
PCT/JP2018/001480
Publication Date:
August 16, 2018
Filing Date:
January 12, 2018
Export Citation:
Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP (JP)
International Classes:
B60H1/22; B60H1/00; B60H1/32
Foreign References:
| JPH0732871A | 1995-02-03 | |||
| JP2000146329A | 2000-05-26 | |||
| JP2014094676A | 2014-05-22 |
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