JPS57148041A - Controller of air-fuel ratio in carburetor - Google Patents

Controller of air-fuel ratio in carburetor

Info

Publication number
JPS57148041A
JPS57148041A JP3355381A JP3355381A JPS57148041A JP S57148041 A JPS57148041 A JP S57148041A JP 3355381 A JP3355381 A JP 3355381A JP 3355381 A JP3355381 A JP 3355381A JP S57148041 A JPS57148041 A JP S57148041A
Authority
JP
Japan
Prior art keywords
air
circuit
fuel ratio
carburetor
detector switch
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
JP3355381A
Other languages
Japanese (ja)
Inventor
Yasuyuki Sugiura
Katsutoshi Ueda
Shunichi Hayashi
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.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor 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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP3355381A priority Critical patent/JPS57148041A/en
Publication of JPS57148041A publication Critical patent/JPS57148041A/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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1483—Proportional component

Landscapes

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

Abstract

PURPOSE:To improve fuel consumption in a carburetor utilizing an oxygen sensor, by controlling the carburetor to air-fuel ratio in accordance with a vehicle running condition from a load detecdor device, detecting high and low loads, and a control circuit, having two air-fuel ratio control target values. CONSTITUTION:An oxygen sensor 1 is provided with a gentle output characteristic for air-fuel ratiom and a load detector element 2 comprises a high load detector switch 3, light load detector switch 4, edle detector switch 5 and EGR detector switch 6. A control circuit 8 is connected with a buffer amplifier 9, connected with the oxygen sensor 1 to its input side, comparator 10, proportional output circuit 11, the first gate circuit 14, connected with reference voltage sources 12, 13 to its input side, the secont gate circuit 16, connected with output sides of the circuit 11 and OR circuit 15 to its two input sides, and amplifier circuit 17. Further an actuator 18 is connected to the output side of said amplifier circuit 17, and air-fuel ratio is adjusted by jetting and stopping air to a carburetor. This device controls the air-fuel ratio in accordance with a vehicle running state of power operation, moderate acceleration, and constant speed running.
JP3355381A 1981-03-09 1981-03-09 Controller of air-fuel ratio in carburetor Pending JPS57148041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3355381A JPS57148041A (en) 1981-03-09 1981-03-09 Controller of air-fuel ratio in carburetor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3355381A JPS57148041A (en) 1981-03-09 1981-03-09 Controller of air-fuel ratio in carburetor

Publications (1)

Publication Number Publication Date
JPS57148041A true JPS57148041A (en) 1982-09-13

Family

ID=12389739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3355381A Pending JPS57148041A (en) 1981-03-09 1981-03-09 Controller of air-fuel ratio in carburetor

Country Status (1)

Country Link
JP (1) JPS57148041A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5872648A (en) * 1981-10-23 1983-04-30 Mazda Motor Corp Air-fuel ratio controller for engine
JPS603446A (en) * 1983-06-21 1985-01-09 Mitsubishi Electric Corp Air-fuel ratio controller of engine
JPS603440A (en) * 1983-06-21 1985-01-09 Nippon Denso Co Ltd Method of controlling air fuel ratio of engine
JPS6035144A (en) * 1983-08-05 1985-02-22 Nippon Denso Co Ltd Air-fuel ratio control device
JPS60219428A (en) * 1984-04-16 1985-11-02 Nissan Motor Co Ltd Acceleration fuel controlling device for internal-combustion engine
JPS60233342A (en) * 1984-05-07 1985-11-20 Toyota Motor Corp Method of controlling current supply to oxygen sensor used for controlling air-fuel ratio of internal-combustion engine
JPS60252134A (en) * 1984-05-28 1985-12-12 Hitachi Ltd Air-fuel ratio controlling method
JPS6134331A (en) * 1984-07-27 1986-02-18 Nissan Motor Co Ltd Air-fuel ratio controller for internal-combustion engine
JPS61255238A (en) * 1985-05-07 1986-11-12 Mitsubishi Electric Corp Fuel controller for engine
JPS6434445U (en) * 1987-08-27 1989-03-02

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50217A (en) * 1973-05-11 1975-01-06
JPS50142930A (en) * 1974-05-07 1975-11-18
JPS51127927A (en) * 1975-04-30 1976-11-08 Nissan Motor Co Ltd Air and fuel mixture ratio control device
JPS54108125A (en) * 1978-02-15 1979-08-24 Toyota Motor Corp Air fuel ratio controller for internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50217A (en) * 1973-05-11 1975-01-06
JPS50142930A (en) * 1974-05-07 1975-11-18
JPS51127927A (en) * 1975-04-30 1976-11-08 Nissan Motor Co Ltd Air and fuel mixture ratio control device
JPS54108125A (en) * 1978-02-15 1979-08-24 Toyota Motor Corp Air fuel ratio controller for internal combustion engine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5872648A (en) * 1981-10-23 1983-04-30 Mazda Motor Corp Air-fuel ratio controller for engine
JPH039294B2 (en) * 1981-10-23 1991-02-08 Mazda Motor
JPS603446A (en) * 1983-06-21 1985-01-09 Mitsubishi Electric Corp Air-fuel ratio controller of engine
JPS603440A (en) * 1983-06-21 1985-01-09 Nippon Denso Co Ltd Method of controlling air fuel ratio of engine
JPS6035144A (en) * 1983-08-05 1985-02-22 Nippon Denso Co Ltd Air-fuel ratio control device
JPS60219428A (en) * 1984-04-16 1985-11-02 Nissan Motor Co Ltd Acceleration fuel controlling device for internal-combustion engine
JPS60233342A (en) * 1984-05-07 1985-11-20 Toyota Motor Corp Method of controlling current supply to oxygen sensor used for controlling air-fuel ratio of internal-combustion engine
JPS60252134A (en) * 1984-05-28 1985-12-12 Hitachi Ltd Air-fuel ratio controlling method
JPS6134331A (en) * 1984-07-27 1986-02-18 Nissan Motor Co Ltd Air-fuel ratio controller for internal-combustion engine
JPH0425426B2 (en) * 1984-07-27 1992-04-30 Nissan Motor
JPS61255238A (en) * 1985-05-07 1986-11-12 Mitsubishi Electric Corp Fuel controller for engine
JPS6434445U (en) * 1987-08-27 1989-03-02

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