FR2739142B1 - METHOD FOR CONTROLLING THE RICHNESS OF AN AIR / FUEL MIXTURE SUPPLYING AN INTERNAL COMBUSTION ENGINE AND CORRESPONDING DEVICE - Google Patents

METHOD FOR CONTROLLING THE RICHNESS OF AN AIR / FUEL MIXTURE SUPPLYING AN INTERNAL COMBUSTION ENGINE AND CORRESPONDING DEVICE

Info

Publication number
FR2739142B1
FR2739142B1 FR9511429A FR9511429A FR2739142B1 FR 2739142 B1 FR2739142 B1 FR 2739142B1 FR 9511429 A FR9511429 A FR 9511429A FR 9511429 A FR9511429 A FR 9511429A FR 2739142 B1 FR2739142 B1 FR 2739142B1
Authority
FR
France
Prior art keywords
richness
controlling
air
combustion engine
internal combustion
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.)
Expired - Lifetime
Application number
FR9511429A
Other languages
French (fr)
Other versions
FR2739142A1 (en
Inventor
Alain Aubourg
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.)
Continental Automotive France SAS
Original Assignee
Siemens Automotive SA
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 Siemens Automotive SA filed Critical Siemens Automotive SA
Priority to FR9511429A priority Critical patent/FR2739142B1/en
Publication of FR2739142A1 publication Critical patent/FR2739142A1/en
Application granted granted Critical
Publication of FR2739142B1 publication Critical patent/FR2739142B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D41/1408—Dithering techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/0015—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for using exhaust gas sensors
    • F02D35/0046—Controlling fuel supply
    • F02D35/0053—Controlling fuel supply by means of a carburettor
    • 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
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2454—Learning of the air-fuel ratio control
    • F02D41/2458—Learning of the air-fuel ratio control with an additional dither signal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions

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)
FR9511429A 1995-09-27 1995-09-27 METHOD FOR CONTROLLING THE RICHNESS OF AN AIR / FUEL MIXTURE SUPPLYING AN INTERNAL COMBUSTION ENGINE AND CORRESPONDING DEVICE Expired - Lifetime FR2739142B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9511429A FR2739142B1 (en) 1995-09-27 1995-09-27 METHOD FOR CONTROLLING THE RICHNESS OF AN AIR / FUEL MIXTURE SUPPLYING AN INTERNAL COMBUSTION ENGINE AND CORRESPONDING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9511429A FR2739142B1 (en) 1995-09-27 1995-09-27 METHOD FOR CONTROLLING THE RICHNESS OF AN AIR / FUEL MIXTURE SUPPLYING AN INTERNAL COMBUSTION ENGINE AND CORRESPONDING DEVICE

Publications (2)

Publication Number Publication Date
FR2739142A1 FR2739142A1 (en) 1997-03-28
FR2739142B1 true FR2739142B1 (en) 1997-12-05

Family

ID=9483034

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9511429A Expired - Lifetime FR2739142B1 (en) 1995-09-27 1995-09-27 METHOD FOR CONTROLLING THE RICHNESS OF AN AIR / FUEL MIXTURE SUPPLYING AN INTERNAL COMBUSTION ENGINE AND CORRESPONDING DEVICE

Country Status (1)

Country Link
FR (1) FR2739142B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008028769A1 (en) 2008-06-17 2009-12-24 Volkswagen Ag Method for determining the fuel-air ratio of an internal combustion engine
WO2012115548A1 (en) * 2011-02-23 2012-08-30 Husqvarna Ab Control of a/f ratio at cut-out speed

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007719A (en) * 1973-06-29 1977-02-15 Robert Bosch G.M.B.H. Apparatus for the detoxification of exhaust gases
FR2286285A1 (en) * 1974-09-26 1976-04-23 Peugeot & Renault ELECTROPNEUMATIC DEVICE FOR REGULATING AN AUXILIARY AIR INJECTION TO THE INTAKE OF INTERNAL COMBUSTION ENGINES
SE9200523L (en) * 1992-02-20 1993-04-26 Electrolux Ab FOERGASARSTYRNING
SE9302769D0 (en) * 1993-08-27 1993-08-27 Electrolux Ab Engine management

Also Published As

Publication number Publication date
FR2739142A1 (en) 1997-03-28

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