JPS57203888A - Operation controlling method for variable displacement compressor used in automotive space-cooling device - Google Patents

Operation controlling method for variable displacement compressor used in automotive space-cooling device

Info

Publication number
JPS57203888A
JPS57203888A JP56087254A JP8725481A JPS57203888A JP S57203888 A JPS57203888 A JP S57203888A JP 56087254 A JP56087254 A JP 56087254A JP 8725481 A JP8725481 A JP 8725481A JP S57203888 A JPS57203888 A JP S57203888A
Authority
JP
Japan
Prior art keywords
compressor
capacity
point
temperature
superheat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56087254A
Other languages
Japanese (ja)
Other versions
JPH0135264B2 (en
Inventor
Mitsuhiro Hattori
Atsushi Hasegawa
Hiroya Kono
Hisao Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Original Assignee
Toyoda Jidoshokki Seisakusho KK
Toyoda Automatic Loom Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyoda Jidoshokki Seisakusho KK, Toyoda Automatic Loom Works Ltd filed Critical Toyoda Jidoshokki Seisakusho KK
Priority to JP56087254A priority Critical patent/JPS57203888A/en
Publication of JPS57203888A publication Critical patent/JPS57203888A/en
Publication of JPH0135264B2 publication Critical patent/JPH0135264B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B60H1/3211—Control means therefor for increasing the efficiency of a vehicle refrigeration cycle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3248—Cooling devices information from a variable is obtained related to pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3269—Cooling devices output of a control signal
    • B60H2001/327—Cooling devices output of a control signal related to a compressing unit

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE:To prevent compression of wet steam, by switching the capacity of a compressor when the state point determined by the detected discharge pressure and temperature gets out of a tolerable region, and controlling the degree of superheat to a proper value to meet with variation of the atmospheric temperature. CONSTITUTION:Under the state that the temperature in the cabin of a vehicle is high, a compressor is operated at a rate of 100%, and the cooling capacity and the cooling load imposed on the compressor are substantially equal to each other, switching of the compressor capacity is not caused since the actual state point A of operation determined by the discharge pressure and temperature is located within a tolerable region E preset in a memory by a control means to have a certain degree of superheat. Subsequently, when the cooling capacity becomes greater than the actual cooling load with lowering of the temperature in the cabin and resultant drop of the cooling load, the degree of superheat is lowered and the point A gets out of a line H1 of the degree of superheat in the region E, whereupon the capacity of compressor is decreased by a signal given from the control means, so that the point A is brought back to a point within the region E. On the other hand, in case that the point A gets out of a line A2 by reason of the fact that the cooling capacity is lower than the cooling load, the capacity of the compressor is increased.
JP56087254A 1981-06-05 1981-06-05 Operation controlling method for variable displacement compressor used in automotive space-cooling device Granted JPS57203888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56087254A JPS57203888A (en) 1981-06-05 1981-06-05 Operation controlling method for variable displacement compressor used in automotive space-cooling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56087254A JPS57203888A (en) 1981-06-05 1981-06-05 Operation controlling method for variable displacement compressor used in automotive space-cooling device

Publications (2)

Publication Number Publication Date
JPS57203888A true JPS57203888A (en) 1982-12-14
JPH0135264B2 JPH0135264B2 (en) 1989-07-24

Family

ID=13909650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56087254A Granted JPS57203888A (en) 1981-06-05 1981-06-05 Operation controlling method for variable displacement compressor used in automotive space-cooling device

Country Status (1)

Country Link
JP (1) JPS57203888A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6222962A (en) * 1985-07-23 1987-01-31 三菱電機株式会社 Refrigerator
JPS63140251A (en) * 1986-12-03 1988-06-11 株式会社日立製作所 Air conditioner
JP2011247547A (en) * 2010-05-28 2011-12-08 Denso Corp Refrigerating cycle device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6222962A (en) * 1985-07-23 1987-01-31 三菱電機株式会社 Refrigerator
JPS63140251A (en) * 1986-12-03 1988-06-11 株式会社日立製作所 Air conditioner
JP2011247547A (en) * 2010-05-28 2011-12-08 Denso Corp Refrigerating cycle device

Also Published As

Publication number Publication date
JPH0135264B2 (en) 1989-07-24

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