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JPS57193731A - Fuel controller of internal combustion engine - Google Patents

Fuel controller of internal combustion engine

Info

Publication number
JPS57193731A
JPS57193731A JP7980481A JP7980481A JPS57193731A JP S57193731 A JPS57193731 A JP S57193731A JP 7980481 A JP7980481 A JP 7980481A JP 7980481 A JP7980481 A JP 7980481A JP S57193731 A JPS57193731 A JP S57193731A
Authority
JP
Japan
Prior art keywords
divider
output pulse
frequency
output
pulse
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
JP7980481A
Other languages
Japanese (ja)
Inventor
Setsuhiro Shimomura
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 JP7980481A priority Critical patent/JPS57193731A/en
Publication of JPS57193731A publication Critical patent/JPS57193731A/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
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/185—Circuit arrangements for generating control signals by measuring intake air flow using a vortex flow sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To operate an engine at a stable speed for its intake air at a low flow quantity, by providing a frequency divider, that divides an output pulse of an air flow sensor, and a frequency discriminator, that controls dividing ratio of the divider. CONSTITUTION:An air flow sensor 2 detects an intake air quantity 1 by a Karman vortex stream to feed an output pulse 3 to a divider 8 and frequency discriminator 9. Dividing ratio of the divider 8 and pulse width of output of a monomultivibrator 4 are controlled by output of the frequency discriminator 9. For the output pulse 3 at a low frequency, an output pulse of the divider 8 is divided to 1/1 and amplified by a driver 6 to drive an injection valve 7. While at a high frequency of the output pulse 3, the divider 8 divides the pulse to 1/4. In this way, for the intake air quantity even if more or less, an engine can be operated at a stable speed.
JP7980481A 1981-05-25 1981-05-25 Fuel controller of internal combustion engine Pending JPS57193731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7980481A JPS57193731A (en) 1981-05-25 1981-05-25 Fuel controller of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7980481A JPS57193731A (en) 1981-05-25 1981-05-25 Fuel controller of internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57193731A true JPS57193731A (en) 1982-11-29

Family

ID=13700398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7980481A Pending JPS57193731A (en) 1981-05-25 1981-05-25 Fuel controller of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57193731A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587413A1 (en) * 1985-07-18 1987-03-20 Mitsubishi Motors Corp FUEL CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE WITH OVERPRESSURE CORRECTION
EP0245117A2 (en) * 1986-05-09 1987-11-11 Mitsubishi Denki Kabushiki Kaisha Fuel control apparatus for a fuel injection system of an internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587413A1 (en) * 1985-07-18 1987-03-20 Mitsubishi Motors Corp FUEL CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE WITH OVERPRESSURE CORRECTION
EP0245117A2 (en) * 1986-05-09 1987-11-11 Mitsubishi Denki Kabushiki Kaisha Fuel control apparatus for a fuel injection system of an internal combustion engine
US4760829A (en) * 1986-05-09 1988-08-02 Mitsubishi Denki Kabushiki Kaisha Fuel control apparatus for a fuel injection system of an internal combustion engine

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