FR2640320B1 - METHOD FOR OPTIMIZING THE REGULATION OF THE FUEL / AIR RATIO IN INTERNAL COMBUSTION ENGINES - Google Patents

METHOD FOR OPTIMIZING THE REGULATION OF THE FUEL / AIR RATIO IN INTERNAL COMBUSTION ENGINES

Info

Publication number
FR2640320B1
FR2640320B1 FR898916287A FR8916287A FR2640320B1 FR 2640320 B1 FR2640320 B1 FR 2640320B1 FR 898916287 A FR898916287 A FR 898916287A FR 8916287 A FR8916287 A FR 8916287A FR 2640320 B1 FR2640320 B1 FR 2640320B1
Authority
FR
France
Prior art keywords
optimizing
regulation
fuel
internal combustion
combustion engines
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 - Fee Related
Application number
FR898916287A
Other languages
French (fr)
Other versions
FR2640320A1 (en
Inventor
Ferry Duerschmidt
Hartmut Kolb
Wolfgang Strauss
Hartmut Weckenmann
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of FR2640320A1 publication Critical patent/FR2640320A1/en
Application granted granted Critical
Publication of FR2640320B1 publication Critical patent/FR2640320B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

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)
FR898916287A 1988-12-10 1989-12-08 METHOD FOR OPTIMIZING THE REGULATION OF THE FUEL / AIR RATIO IN INTERNAL COMBUSTION ENGINES Expired - Fee Related FR2640320B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3841684A DE3841684C1 (en) 1988-12-10 1988-12-10 Method for optimising the control of the fuel-air ratio in an internal combustion engine

Publications (2)

Publication Number Publication Date
FR2640320A1 FR2640320A1 (en) 1990-06-15
FR2640320B1 true FR2640320B1 (en) 1991-12-06

Family

ID=6368910

Family Applications (1)

Application Number Title Priority Date Filing Date
FR898916287A Expired - Fee Related FR2640320B1 (en) 1988-12-10 1989-12-08 METHOD FOR OPTIMIZING THE REGULATION OF THE FUEL / AIR RATIO IN INTERNAL COMBUSTION ENGINES

Country Status (3)

Country Link
DE (1) DE3841684C1 (en)
FR (1) FR2640320B1 (en)
IT (1) IT1237222B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10038339A1 (en) * 2000-08-05 2002-02-14 Bosch Gmbh Robert Method and device for monitoring a sensor
DE102004001723A1 (en) * 2004-01-13 2005-08-18 Volkswagen Ag Control system for IC engine with continuous lambda control has programmed additional fuel added to injection pulses as actual engine speed exceeds threshold value to prevent undue swing about nominal idling value

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5281438A (en) * 1975-12-27 1977-07-07 Nissan Motor Co Ltd Air fuel ratio controller
JPS5623533A (en) * 1979-08-02 1981-03-05 Fuji Heavy Ind Ltd Air-fuel ratio controller
DE3336894A1 (en) * 1983-10-11 1985-04-25 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR LAMBDA CONTROL IN AN INTERNAL COMBUSTION ENGINE
JPS6260941A (en) * 1985-09-10 1987-03-17 Toyota Motor Corp Air-fuel ratio controller for internal combustion engine
US4867125A (en) * 1988-09-20 1989-09-19 Ford Motor Company Air/fuel ratio control system

Also Published As

Publication number Publication date
IT1237222B (en) 1993-05-27
FR2640320A1 (en) 1990-06-15
IT8948608A0 (en) 1989-11-28
DE3841684C1 (en) 1990-04-26

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20060831