JPS55151127A - Air-fuel ratio controlling apparatus - Google Patents

Air-fuel ratio controlling apparatus

Info

Publication number
JPS55151127A
JPS55151127A JP5805179A JP5805179A JPS55151127A JP S55151127 A JPS55151127 A JP S55151127A JP 5805179 A JP5805179 A JP 5805179A JP 5805179 A JP5805179 A JP 5805179A JP S55151127 A JPS55151127 A JP S55151127A
Authority
JP
Japan
Prior art keywords
air
fuel
solenoid
engine
signals
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
JP5805179A
Other languages
Japanese (ja)
Inventor
Osamu Abe
Seiji Suda
Toshio Furuhashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5805179A priority Critical patent/JPS55151127A/en
Publication of JPS55151127A publication Critical patent/JPS55151127A/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
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire 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 provide a simple apparatus capable of controlling the air-fuel ratio to a proper value, by detecting the engine torque indirectly from air-flow rate, and controlling the fuel injection rate in response to the engine torque thus detected together with signals from various sensors for detecting other operational conditions of engine. CONSTITUTION:In throttle chamber 12, there are provided a bypass passage 54 having air-flow sensor 56 and an air passage 16 having air-flow control valve 18 which is driven by solenoid 20. Fuel passage 24 is communicated to main and slow- speed fuel passages 30, 60 via fuel chamber 28. Piston 40 disposed downwardly of solenoid 44 is moved up and down by the solenoid 44 for controlling the amount of fuel to be supplied to fuel chamber 28. Here, since air-flow rate is proportional to the engine torque, output signal from sensor 56 is afforded as torque signal to control circuit 100, which is also afforded with signals from sensor 200 for detecting various operational conditions of engine. With such an arrangement, correction for the quantity of air and fuel is accomplished by means of solenoids 20, 44 which are controlled in response to said signals from sensors 56, 200.
JP5805179A 1979-05-14 1979-05-14 Air-fuel ratio controlling apparatus Pending JPS55151127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5805179A JPS55151127A (en) 1979-05-14 1979-05-14 Air-fuel ratio controlling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5805179A JPS55151127A (en) 1979-05-14 1979-05-14 Air-fuel ratio controlling apparatus

Publications (1)

Publication Number Publication Date
JPS55151127A true JPS55151127A (en) 1980-11-25

Family

ID=13073114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5805179A Pending JPS55151127A (en) 1979-05-14 1979-05-14 Air-fuel ratio controlling apparatus

Country Status (1)

Country Link
JP (1) JPS55151127A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118628A (en) * 1977-03-25 1978-10-17 Nippon Carbureter Carburetor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118628A (en) * 1977-03-25 1978-10-17 Nippon Carbureter Carburetor

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