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JPS56165756A - Method of detecting recycled flow rate of engine exhaust gas - Google Patents

Method of detecting recycled flow rate of engine exhaust gas

Info

Publication number
JPS56165756A
JPS56165756A JP6748880A JP6748880A JPS56165756A JP S56165756 A JPS56165756 A JP S56165756A JP 6748880 A JP6748880 A JP 6748880A JP 6748880 A JP6748880 A JP 6748880A JP S56165756 A JPS56165756 A JP S56165756A
Authority
JP
Japan
Prior art keywords
exhaust gas
detector
deviation
negative pressure
reference value
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
JP6748880A
Other languages
Japanese (ja)
Inventor
Osamu Matsumoto
Tsuneo Yamane
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6748880A priority Critical patent/JPS56165756A/en
Publication of JPS56165756A publication Critical patent/JPS56165756A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
    • F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
    • F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/49—Detecting, diagnosing or indicating an abnormal function of the EGR system

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE:To enhance the running property of an engine at the recycling of its exhaust gas, by storing one of three parameters of the engine as a reference value and by predetermining the recycled flow rate of the exhaust gas depending on deviations resulting from the comparison of the measured values of two other parameters with the reference value. CONSTITUTION:A negative pressure signal from a negative pressure detector 10 provided in an intake pipe 2 is stored as a reference value in a deviation detector 15. Measured load signals from a throttle opening degree detector 9 and a rotational frequency detector 8 are applied to the deviation detector 15 through level detectors 11, 12 and a gate circuit 14 so that the measured load signals are compared with the stored negative pressure signal. A control valve 6 provided in an exhaust gas recycling passage 5 is regulated on the basis of deviation signals resulting from the comparison, to appropriately recycle exhaust gas. When the deviation has exceeded a prescribed level, an alarm means 17 is energized to warn the driver.
JP6748880A 1980-05-21 1980-05-21 Method of detecting recycled flow rate of engine exhaust gas Pending JPS56165756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6748880A JPS56165756A (en) 1980-05-21 1980-05-21 Method of detecting recycled flow rate of engine exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6748880A JPS56165756A (en) 1980-05-21 1980-05-21 Method of detecting recycled flow rate of engine exhaust gas

Publications (1)

Publication Number Publication Date
JPS56165756A true JPS56165756A (en) 1981-12-19

Family

ID=13346407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6748880A Pending JPS56165756A (en) 1980-05-21 1980-05-21 Method of detecting recycled flow rate of engine exhaust gas

Country Status (1)

Country Link
JP (1) JPS56165756A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6251747A (en) * 1985-08-31 1987-03-06 Nippon Denso Co Ltd Exhaust gas recirculation control device
JPS6251746A (en) * 1985-08-31 1987-03-06 Nippon Denso Co Ltd Exhaust gas recirculation control device
DE4219015A1 (en) * 1991-06-10 1992-12-17 Mitsubishi Electric Corp CONTROL DEVICE WITH EXHAUST GAS RECIRCULATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6251747A (en) * 1985-08-31 1987-03-06 Nippon Denso Co Ltd Exhaust gas recirculation control device
JPS6251746A (en) * 1985-08-31 1987-03-06 Nippon Denso Co Ltd Exhaust gas recirculation control device
DE4219015A1 (en) * 1991-06-10 1992-12-17 Mitsubishi Electric Corp CONTROL DEVICE WITH EXHAUST GAS RECIRCULATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
US5251599A (en) * 1991-06-10 1993-10-12 Mitsubishi Denki K.K. Internal combustion engine control device having exhaust gas recycle system
DE4219015C2 (en) * 1991-06-10 1998-03-26 Mitsubishi Electric Corp Control device with exhaust gas recirculation system for an internal combustion engine

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