JPS57171044A - Air to fuel ratio control system for internal-combustion engine - Google Patents

Air to fuel ratio control system for internal-combustion engine

Info

Publication number
JPS57171044A
JPS57171044A JP5667581A JP5667581A JPS57171044A JP S57171044 A JPS57171044 A JP S57171044A JP 5667581 A JP5667581 A JP 5667581A JP 5667581 A JP5667581 A JP 5667581A JP S57171044 A JPS57171044 A JP S57171044A
Authority
JP
Japan
Prior art keywords
signal
air
fuel ratio
ram16
constant
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
JP5667581A
Other languages
Japanese (ja)
Inventor
Morinaga Okada
Kazuhiro Kato
Hideo Wakata
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP5667581A priority Critical patent/JPS57171044A/en
Publication of JPS57171044A publication Critical patent/JPS57171044A/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

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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To enable to control correctly without any time delay by a method wherein a proportioal constant and an integral constant are read in accordance with the parameter of operation and are operated by a rich signal and a lean signal in the air to fuel ratio control system controlling air bleed or the like. CONSTITUTION:A central processor 14 figures out the parameter of operation from a function memorized in an ROM15 by the signal of a number of revolution and the signal of a vacuum, both memorized in the RAM16, and reads out the proportional constant P and the integral constant I in accordance with read operation divisions to memorize them into the RAM16. Next, a compensating value for the opening and closing rate of a solenoid valve 9 is operated from the P, I values of the RAM16 and a rich or lean decision signal lambda by the predetermined function of the ROM15. Accordingly, the air to fuel ratio may be controlled correctly and accurately without causing any hunting or time delay for respective operating conditions by a method wherein the P, I values as well as the divisions of the operating conditions which are to be set with the central processor 14 are selected properly.
JP5667581A 1981-04-15 1981-04-15 Air to fuel ratio control system for internal-combustion engine Pending JPS57171044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5667581A JPS57171044A (en) 1981-04-15 1981-04-15 Air to fuel ratio control system for internal-combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5667581A JPS57171044A (en) 1981-04-15 1981-04-15 Air to fuel ratio control system for internal-combustion engine

Publications (1)

Publication Number Publication Date
JPS57171044A true JPS57171044A (en) 1982-10-21

Family

ID=13033990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5667581A Pending JPS57171044A (en) 1981-04-15 1981-04-15 Air to fuel ratio control system for internal-combustion engine

Country Status (1)

Country Link
JP (1) JPS57171044A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113142A (en) * 1986-10-30 1988-05-18 Honda Motor Co Ltd Air-fuel ratio controlling method for internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113142A (en) * 1986-10-30 1988-05-18 Honda Motor Co Ltd Air-fuel ratio controlling method for internal combustion engine

Similar Documents

Publication Publication Date Title
JPS56126633A (en) Automatic speed governor for engine
JPS5749052A (en) Purifying device of exhaust gas in fuel injection type engine
JPS57212336A (en) Electronic controlled fuel injection system
JPS56118536A (en) Air fuel ratio controller for engine
JPS57171044A (en) Air to fuel ratio control system for internal-combustion engine
JPS5685540A (en) Air-fuel ratio controlling device
JPS5623551A (en) Air-fuel ratio controller
JPS56115854A (en) Ignition timing controller for engine
JPS5623535A (en) Air-fuel ratio controller
JPS5735139A (en) Air/fuel ratio feedback control unit for internal combustion engine
JPS57174627A (en) Automatic temperature control combustor
JPS5652557A (en) Air fuel ratio controller for carburetor
JPS54123742A (en) Automatic fuel/air ratio controller
JPS57143140A (en) Speed controller for internal combustion engine
JPS55155213A (en) Processing method for output signal of engine controlling sensor
JPS52151429A (en) Air/fuel-ratio control system of carburetor
JPS5776235A (en) Electronic controlling type fuel injection method
JPS5634940A (en) Air-fuel ratio control apparatus
JPS5632064A (en) Mixture controlling system for variable venturi type carburetor
JPS5325934A (en) Combustion controller and control method
JPS5759041A (en) Air-to-fuel ratio controller in engine
JPS55139955A (en) Mixed air controller for carburetor
JPS55148931A (en) Control method of air fuel ratio
JPS57343A (en) Speed controller for internal combustion engine
SU1331192A1 (en) The method of controlling the operation of the control system of the valves of the air bypass gas turbine engine