IT1237222B - FUEL / AIR RATIO OPTIMIZATION PROCEDURE IN INTERNAL COMBUSTION ENGINES. - Google Patents

FUEL / AIR RATIO OPTIMIZATION PROCEDURE IN INTERNAL COMBUSTION ENGINES.

Info

Publication number
IT1237222B
IT1237222B IT04860889A IT4860889A IT1237222B IT 1237222 B IT1237222 B IT 1237222B IT 04860889 A IT04860889 A IT 04860889A IT 4860889 A IT4860889 A IT 4860889A IT 1237222 B IT1237222 B IT 1237222B
Authority
IT
Italy
Prior art keywords
fuel
internal combustion
combustion engines
air ratio
optimization procedure
Prior art date
Application number
IT04860889A
Other languages
Italian (it)
Other versions
IT8948608A0 (en
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 IT8948608A0 publication Critical patent/IT8948608A0/en
Application granted granted Critical
Publication of IT1237222B publication Critical patent/IT1237222B/en

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)
IT04860889A 1988-12-10 1989-11-28 FUEL / AIR RATIO OPTIMIZATION PROCEDURE IN INTERNAL COMBUSTION ENGINES. IT1237222B (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
IT8948608A0 IT8948608A0 (en) 1989-11-28
IT1237222B true IT1237222B (en) 1993-05-27

Family

ID=6368910

Family Applications (1)

Application Number Title Priority Date Filing Date
IT04860889A IT1237222B (en) 1988-12-10 1989-11-28 FUEL / AIR RATIO OPTIMIZATION PROCEDURE 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
DE3841684C1 (en) 1990-04-26
FR2640320B1 (en) 1991-12-06
FR2640320A1 (en) 1990-06-15
IT8948608A0 (en) 1989-11-28

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971127