FR2263384A1 - Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content - Google Patents

Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content

Info

Publication number
FR2263384A1
FR2263384A1 FR7407606A FR7407606A FR2263384A1 FR 2263384 A1 FR2263384 A1 FR 2263384A1 FR 7407606 A FR7407606 A FR 7407606A FR 7407606 A FR7407606 A FR 7407606A FR 2263384 A1 FR2263384 A1 FR 2263384A1
Authority
FR
France
Prior art keywords
oxygen content
time according
correction
exhaust oxygen
cct
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.)
Granted
Application number
FR7407606A
Other languages
French (fr)
Other versions
FR2263384B1 (en
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.)
Societe des Procedes Modernes dInjection SOPROMI
Original Assignee
Societe des Procedes Modernes dInjection SOPROMI
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 Societe des Procedes Modernes dInjection SOPROMI filed Critical Societe des Procedes Modernes dInjection SOPROMI
Priority to FR7407606A priority Critical patent/FR2263384A1/en
Publication of FR2263384A1 publication Critical patent/FR2263384A1/en
Application granted granted Critical
Publication of FR2263384B1 publication Critical patent/FR2263384B1/fr
Granted 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)
    • F02D41/1482—Integrator, i.e. variable slope
    • 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
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2432—Methods of calibration

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

A basic fuel injection control circuit consists of three electronic counters which count N1, N2 and N3 pulses respectively. The binary word M is applied to the first computer (1). The pulses indicated by H are counted successively on the counters (1) and (2). When the counters (1) and (2) have completed counting, a pulse (5) is supplied to the counter (3) which consists of two elements (6) and (7) and the signal to terminate the injection period is delivered through the gate (4). This signal can be modified by installing a correction circuit between the terminals (K and K'). This correction circuit can modify the injection time according to any additional variable such as exhaust oxygen content.
FR7407606A 1974-03-06 1974-03-06 Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content Granted FR2263384A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7407606A FR2263384A1 (en) 1974-03-06 1974-03-06 Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7407606A FR2263384A1 (en) 1974-03-06 1974-03-06 Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content

Publications (2)

Publication Number Publication Date
FR2263384A1 true FR2263384A1 (en) 1975-10-03
FR2263384B1 FR2263384B1 (en) 1977-10-07

Family

ID=9135922

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407606A Granted FR2263384A1 (en) 1974-03-06 1974-03-06 Correction cct. for engine fuel injection system - varies duration of injection time according to exhaust oxygen content

Country Status (1)

Country Link
FR (1) FR2263384A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467985A1 (en) * 1979-10-19 1981-04-30 Psa Gie Rech Dev ELECTRONIC CONTROLLER FOR CONTROLLING THE AIR / FUEL RATIO OF THE MIXTURE SUPPLIED TO AN INTERNAL COMBUSTION ENGINE
EP0418713A2 (en) * 1989-09-20 1991-03-27 HJS FAHRZEUGTEILE-FABRIK GmbH & CO. Conversion kit for a controlled catalyst
EP0427087A2 (en) * 1989-11-04 1991-05-15 Gutmann Messtechnik Ag Conversion kit for Otto engines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467985A1 (en) * 1979-10-19 1981-04-30 Psa Gie Rech Dev ELECTRONIC CONTROLLER FOR CONTROLLING THE AIR / FUEL RATIO OF THE MIXTURE SUPPLIED TO AN INTERNAL COMBUSTION ENGINE
EP0028174A1 (en) * 1979-10-19 1981-05-06 Psa Etudes Et Recherches Electronic control unit to regulate the air-fuel ratio of the mixture fed to an internal-combustion engine
EP0418713A2 (en) * 1989-09-20 1991-03-27 HJS FAHRZEUGTEILE-FABRIK GmbH & CO. Conversion kit for a controlled catalyst
EP0418713A3 (en) * 1989-09-20 1991-11-06 Hjs Fahrzeugteile-Fabrik Gmbh & Co. Conversion kit for a controlled catalyst
EP0427087A2 (en) * 1989-11-04 1991-05-15 Gutmann Messtechnik Ag Conversion kit for Otto engines
EP0427087A3 (en) * 1989-11-04 1991-11-06 Gutmann Messtechnik Ag Conversion kit for otto engines

Also Published As

Publication number Publication date
FR2263384B1 (en) 1977-10-07

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Legal Events

Date Code Title Description
ST Notification of lapse