JPS57195884A - Operation control method of variable capacity compressor for car cooler - Google Patents

Operation control method of variable capacity compressor for car cooler

Info

Publication number
JPS57195884A
JPS57195884A JP56079842A JP7984281A JPS57195884A JP S57195884 A JPS57195884 A JP S57195884A JP 56079842 A JP56079842 A JP 56079842A JP 7984281 A JP7984281 A JP 7984281A JP S57195884 A JPS57195884 A JP S57195884A
Authority
JP
Japan
Prior art keywords
revolutions
compressor
capacity
engine
reducing
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.)
Pending
Application number
JP56079842A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Hattori
Hiroya Kono
Hisao Kobayashi
Atsushi Hasegawa
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 JP56079842A priority Critical patent/JPS57195884A/en
Publication of JPS57195884A publication Critical patent/JPS57195884A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • F04B49/246—Bypassing by keeping open the outlet valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE:To reduce engine loads during acceleration or while running on an expressway by detecting the number of engine revolutions, the suction manifold negative pressure, and the torque converter oil pressure and reducting the capacity of a compressor when the engine loads exceed a preset value. CONSTITUTION:A detector 8 detecting the number of revolutions of an engine 1, the negative pressure of a suction manifold 1a, and the oil pressure of a torque converter 1b, etc. and a control unit 10 issuing commands for reducing the capacity to a capacity transfer mechanism 9 of a compressor 4 when the detected number of revolutions exceed a preset number of revolutions are provided. Therefore, when the compressor is 100 percent operating, if the number of revolutions exceed a preset value by stepping on an accelerator, command signals for reducing the capacity are issued from the control unit 10 so as to close a solenoid valve 69 and open a solenoid valve 71, therefore, the suction pressure is applied to the rear side of a spool 59 to open a discharge valve 56 and release a discharge port 52, the rear side is thus stopped operating and the compressor is transferred to a 50 percent operation. Accordingly, during acceleration the acceleration can be easily performed by reducing the engine loads by half, and also the car can travel smoothly at a high speed.
JP56079842A 1981-05-26 1981-05-26 Operation control method of variable capacity compressor for car cooler Pending JPS57195884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56079842A JPS57195884A (en) 1981-05-26 1981-05-26 Operation control method of variable capacity compressor for car cooler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56079842A JPS57195884A (en) 1981-05-26 1981-05-26 Operation control method of variable capacity compressor for car cooler

Publications (1)

Publication Number Publication Date
JPS57195884A true JPS57195884A (en) 1982-12-01

Family

ID=13701451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56079842A Pending JPS57195884A (en) 1981-05-26 1981-05-26 Operation control method of variable capacity compressor for car cooler

Country Status (1)

Country Link
JP (1) JPS57195884A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5918017A (en) * 1982-07-21 1984-01-30 Nippon Denso Co Ltd Controlling method of refrigerating cycle for automobile
US4519750A (en) * 1982-12-20 1985-05-28 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable-delivery refrigerant compressor
JPS6159419U (en) * 1984-09-27 1986-04-22
US4606197A (en) * 1984-03-22 1986-08-19 Diesel Kiki Co., Ltd. Compressor control unit for automobile air conditioner
JPS6363210U (en) * 1986-10-15 1988-04-26
JPS63227413A (en) * 1987-03-14 1988-09-21 Mazda Motor Corp External controller for variable displacement type compressor
JPS63227414A (en) * 1987-03-14 1988-09-21 Mazda Motor Corp External controller for variable displacement type compressor
JPS63232016A (en) * 1987-03-20 1988-09-28 Mazda Motor Corp External control device for variable displacement compressor
JPS63232019A (en) * 1987-03-20 1988-09-28 Mazda Motor Corp External control device for variable displacement compressor
DE3822465A1 (en) * 1987-07-04 1989-01-19 Toyoda Automatic Loom Works METHOD FOR CONTROLLING OR CONTROLS THE COMPRESSOR OF A MOTOR VEHICLE AIR CONDITIONER
JPH01131858A (en) * 1987-11-17 1989-05-24 Nippon Denso Co Ltd Refrigeration cycle controller for car
JPH01182584A (en) * 1988-01-11 1989-07-20 Toyota Autom Loom Works Ltd Capacity control method for variable displacement compressor
JPH03121918A (en) * 1989-10-04 1991-05-23 Matsushita Electric Ind Co Ltd Airconditioning device for automobile
JPH11132153A (en) * 1997-10-27 1999-05-18 Denso Corp Variable dispacement compressor
JP2008030740A (en) * 2006-07-06 2008-02-14 Denso Corp Vehicular refrigerating cycle device

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5918017A (en) * 1982-07-21 1984-01-30 Nippon Denso Co Ltd Controlling method of refrigerating cycle for automobile
US4519750A (en) * 1982-12-20 1985-05-28 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable-delivery refrigerant compressor
US4606197A (en) * 1984-03-22 1986-08-19 Diesel Kiki Co., Ltd. Compressor control unit for automobile air conditioner
JPS6159419U (en) * 1984-09-27 1986-04-22
JPS6363210U (en) * 1986-10-15 1988-04-26
JPS63227413A (en) * 1987-03-14 1988-09-21 Mazda Motor Corp External controller for variable displacement type compressor
JPS63227414A (en) * 1987-03-14 1988-09-21 Mazda Motor Corp External controller for variable displacement type compressor
JPS63232019A (en) * 1987-03-20 1988-09-28 Mazda Motor Corp External control device for variable displacement compressor
JPS63232016A (en) * 1987-03-20 1988-09-28 Mazda Motor Corp External control device for variable displacement compressor
DE3822465A1 (en) * 1987-07-04 1989-01-19 Toyoda Automatic Loom Works METHOD FOR CONTROLLING OR CONTROLS THE COMPRESSOR OF A MOTOR VEHICLE AIR CONDITIONER
DE3822465C2 (en) * 1987-07-04 1991-09-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi, Jp
JPH01131858A (en) * 1987-11-17 1989-05-24 Nippon Denso Co Ltd Refrigeration cycle controller for car
JPH01182584A (en) * 1988-01-11 1989-07-20 Toyota Autom Loom Works Ltd Capacity control method for variable displacement compressor
JPH03121918A (en) * 1989-10-04 1991-05-23 Matsushita Electric Ind Co Ltd Airconditioning device for automobile
JPH11132153A (en) * 1997-10-27 1999-05-18 Denso Corp Variable dispacement compressor
JP2008030740A (en) * 2006-07-06 2008-02-14 Denso Corp Vehicular refrigerating cycle device

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