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Title:
AIR CONDITIONING SYSTEM FOR AUTOMOBILE
Document Type and Number:
Japanese Patent JP2003104047
Kind Code:
A
Abstract:

To provide an air conditioning system for an automobile capable of continuously and stably performing air conditioning of a cabin, also when using a motor-driven electric compressor.

This system is provided with a refrigerant circuit constituted of the motor-driven compressor 10 driven by feeding from an on-vehicle battery 5, a condenser 13, an expansion valve 18 and an evaporator (cooler) 19, a refrigerant discharge temperature sensor 12 for detecting a refrigerant discharge temperature Td of the motor-driven compressor 10, a cooler temperature sensor 20 for detecting a refrigerant evaporating temperature Te of the evaporator 19, a refrigerant intake temperature sensor 40 for detecting a refrigerant intake temperature Ts of the motor-driven compressor 10, and a control device 28 for air conditioning for controlling the expansion valve 18 based on outputs of each of the temperature sensors 12, 20 and 40. The control device 28 for air conditioning adjusts a refrigerant superheat degree ΔT to be a difference of the refrigerant evaporating temperature Te and the refrigerant intake temperature Ts by the expansion valve 18 based on the refrigerant discharge temperature Td of the motor-driven compressor 10.


Inventors:
SASAKI SHIGEHARU
OTAGAKI KAZUHISA
KUBO MAMORU
Application Number:
JP2001302213A
Publication Date:
April 09, 2003
Filing Date:
September 28, 2001
Export Citation:
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Assignee:
SANYO ELECTRIC CO
International Classes:
B60H1/22; B60H1/32; F25B1/00; (IPC1-7): B60H1/32; B60H1/22; F25B1/00
Domestic Patent References:
JPH09300951A1997-11-25
JPS60194260A1985-10-02
JPH04240355A1992-08-27
Attorney, Agent or Firm:
Amasa Kei