JPS5779420A - Pressure detector of engine - Google Patents

Pressure detector of engine

Info

Publication number
JPS5779420A
JPS5779420A JP15563380A JP15563380A JPS5779420A JP S5779420 A JPS5779420 A JP S5779420A JP 15563380 A JP15563380 A JP 15563380A JP 15563380 A JP15563380 A JP 15563380A JP S5779420 A JPS5779420 A JP S5779420A
Authority
JP
Japan
Prior art keywords
sensor
negative pressure
atmospheric pressure
memory
pressure
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
JP15563380A
Other languages
Japanese (ja)
Inventor
Katsuyoshi Iida
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Toyo Kogyo Co 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 Mazda Motor Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP15563380A priority Critical patent/JPS5779420A/en
Publication of JPS5779420A publication Critical patent/JPS5779420A/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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To ensure the accurate control with a simple device, by performing the swtiching with an absolute pressure sensor between the sucked negative pressure and the atmospheric pressure during a steady and unsteady operations and then measuring these pressures to store them into a memory and obtaining the most suitable injection pulse. CONSTITUTION:Both the sucked negative pressure and the atmospheric pressure of a suction path 6 are switched an absolute pressure sensor 2 and a changeover valve 3 and then measured to be supplied and stored into a control part 12. The outputs of a rotational frequency sensor 7 and a steady operation detecting sensor 8 are also supplied to the part 12. Receiving the output of the sensor 8, the part 12 carries out the control so that the sucked negative pressure is measured for a prescribed period of time from the start of both the unsteady and steady operations. Then the part 12 stores the value of detection in the 1st memory and measures the atmospheric pressure in the time except the above-mentioned period of time to store it in the 2nd memory. A fuel jetting nozzle 9 is controlled with the value obtained by correcting the optimum ignition pulse to the sucked negative pressure as well as the rotational frequency which are previously registerd and in accordance with the atmospheric pressure. In such way, the accurate control is possible with a simple device incorporating an absolute pressure sensor.
JP15563380A 1980-11-04 1980-11-04 Pressure detector of engine Pending JPS5779420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15563380A JPS5779420A (en) 1980-11-04 1980-11-04 Pressure detector of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15563380A JPS5779420A (en) 1980-11-04 1980-11-04 Pressure detector of engine

Publications (1)

Publication Number Publication Date
JPS5779420A true JPS5779420A (en) 1982-05-18

Family

ID=15610242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15563380A Pending JPS5779420A (en) 1980-11-04 1980-11-04 Pressure detector of engine

Country Status (1)

Country Link
JP (1) JPS5779420A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104835A (en) * 1980-12-23 1982-06-30 Toyota Motor Corp Detecting method for pressure in internal combustion engine
JPS59134342A (en) * 1983-01-20 1984-08-02 Nippon Denso Co Ltd Internal-combustion engine controller
JPS59138744U (en) * 1983-03-07 1984-09-17 三菱自動車工業株式会社 pressure detection device
FR2553831A1 (en) * 1983-10-20 1985-04-26 Honda Motor Co Ltd METHOD FOR CONTROLLING THE VALUE OF QUANTITIES TO BE GENERATED BY A MEANS FOR CONTROLLING THE OPERATION OF AN INTERNAL COMBUSTION ENGINE
FR2600770A1 (en) * 1986-06-24 1987-12-31 Renault DEVICE AND METHOD FOR MEASURING THE ATMOSPHERIC PRESSURE FOR AN INTERNAL COMBUSTION ENGINE
JPS6355347A (en) * 1986-08-23 1988-03-09 Daihatsu Motor Co Ltd Diagnostic method of pressure detection system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104835A (en) * 1980-12-23 1982-06-30 Toyota Motor Corp Detecting method for pressure in internal combustion engine
JPH023131B2 (en) * 1980-12-23 1990-01-22 Toyota Motor Co Ltd
JPS59134342A (en) * 1983-01-20 1984-08-02 Nippon Denso Co Ltd Internal-combustion engine controller
JPH0468460B2 (en) * 1983-01-20 1992-11-02 Nippon Denso Co
JPS59138744U (en) * 1983-03-07 1984-09-17 三菱自動車工業株式会社 pressure detection device
FR2553831A1 (en) * 1983-10-20 1985-04-26 Honda Motor Co Ltd METHOD FOR CONTROLLING THE VALUE OF QUANTITIES TO BE GENERATED BY A MEANS FOR CONTROLLING THE OPERATION OF AN INTERNAL COMBUSTION ENGINE
FR2600770A1 (en) * 1986-06-24 1987-12-31 Renault DEVICE AND METHOD FOR MEASURING THE ATMOSPHERIC PRESSURE FOR AN INTERNAL COMBUSTION ENGINE
JPS6355347A (en) * 1986-08-23 1988-03-09 Daihatsu Motor Co Ltd Diagnostic method of pressure detection system

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