EP0657637A3 - Electronic system for calculating fuel mixture ratio for an internal combustion engine. - Google Patents

Electronic system for calculating fuel mixture ratio for an internal combustion engine. Download PDF

Info

Publication number
EP0657637A3
EP0657637A3 EP94117678A EP94117678A EP0657637A3 EP 0657637 A3 EP0657637 A3 EP 0657637A3 EP 94117678 A EP94117678 A EP 94117678A EP 94117678 A EP94117678 A EP 94117678A EP 0657637 A3 EP0657637 A3 EP 0657637A3
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
fuel mixture
electronic system
mixture ratio
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
EP94117678A
Other languages
German (de)
French (fr)
Other versions
EP0657637A2 (en
EP0657637B1 (en
Inventor
Luca Biagini
Gabriele Serra
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.)
Marelli Europe SpA
Original Assignee
Magneti Marelli SpA
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 Magneti Marelli SpA filed Critical Magneti Marelli SpA
Priority to EP98105227A priority Critical patent/EP0856653B1/en
Priority to EP98105228A priority patent/EP0855498B1/en
Publication of EP0657637A2 publication Critical patent/EP0657637A2/en
Publication of EP0657637A3 publication Critical patent/EP0657637A3/en
Application granted granted Critical
Publication of EP0657637B1 publication Critical patent/EP0657637B1/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
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1493—Details
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • 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
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1474—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method by detecting the commutation time of the sensor
    • 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)
    • F02D41/1479—Using a comparator with variable reference
    • 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)
    • F02D41/148—Using a plurality of comparators
    • 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
    • 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
    • F02D41/2474—Characteristics of sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
EP94117678A 1993-11-12 1994-11-09 Electronic system for calculating fuel mixture ratio for an internal combustion engine Expired - Lifetime EP0657637B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98105227A EP0856653B1 (en) 1993-11-12 1994-11-09 Electronic system for calculating mixture strength
EP98105228A EP0855498B1 (en) 1993-11-12 1994-11-09 Electronic system for calculating mixture strength

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO930857 1993-11-12
ITTO930857A IT1261114B (en) 1993-11-12 1993-11-12 ELECTRONIC CALCULATION SYSTEM OF THE MIXTURE TITLE.

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP98105228A Division EP0855498B1 (en) 1993-11-12 1994-11-09 Electronic system for calculating mixture strength
EP98105227A Division EP0856653B1 (en) 1993-11-12 1994-11-09 Electronic system for calculating mixture strength

Publications (3)

Publication Number Publication Date
EP0657637A2 EP0657637A2 (en) 1995-06-14
EP0657637A3 true EP0657637A3 (en) 1995-10-11
EP0657637B1 EP0657637B1 (en) 1998-10-07

Family

ID=11411876

Family Applications (3)

Application Number Title Priority Date Filing Date
EP98105228A Expired - Lifetime EP0855498B1 (en) 1993-11-12 1994-11-09 Electronic system for calculating mixture strength
EP94117678A Expired - Lifetime EP0657637B1 (en) 1993-11-12 1994-11-09 Electronic system for calculating fuel mixture ratio for an internal combustion engine
EP98105227A Expired - Lifetime EP0856653B1 (en) 1993-11-12 1994-11-09 Electronic system for calculating mixture strength

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98105228A Expired - Lifetime EP0855498B1 (en) 1993-11-12 1994-11-09 Electronic system for calculating mixture strength

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP98105227A Expired - Lifetime EP0856653B1 (en) 1993-11-12 1994-11-09 Electronic system for calculating mixture strength

Country Status (5)

Country Link
EP (3) EP0855498B1 (en)
BR (1) BR9404572A (en)
DE (3) DE69413784T2 (en)
ES (3) ES2125389T3 (en)
IT (1) IT1261114B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1285311B1 (en) * 1996-03-12 1998-06-03 Magneti Marelli Spa METHOD OF DIAGNOSING THE EFFICIENCY OF AN EXHAUST GAS STOICHIOMETRIC COMPOSITION SENSOR PLACED DOWNSTREAM OF A CONVERTER
US6112731A (en) * 1998-12-21 2000-09-05 Ford Global Technologies, Inc. Engine diagnostic method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047968A1 (en) * 1980-09-12 1982-03-24 Hitachi, Ltd. Control system for internal combustion engine
US4359029A (en) * 1979-05-31 1982-11-16 Nissan Motor Company, Limited Air/fuel ratio control system for an internal combustion engine
GB2103845A (en) * 1981-08-13 1983-02-23 Honda Motor Co Ltd Air/fuel ratio feedback control system for internal combustion engines, having atmospheric pressure - dependent fail safe function for o2 sensor
US4459669A (en) * 1980-06-30 1984-07-10 Toyota Jidosha Kogyo Kabushiki Kaisha Method and apparatus for controlling the air-fuel ratio in an internal combustion engine
US4491921A (en) * 1980-12-23 1985-01-01 Toyota Jidosha Kogyo Kabushiki Kaisha Method and apparatus for controlling the air fuel ratio in an internal combustion engine
US4502443A (en) * 1982-05-28 1985-03-05 Honda Giken Kogyo Kabushiki Kaisha Air/fuel ratio control method having fail-safe function for abnormalities in oxygen concentration detecting means for internal combustion engines
GB2184265A (en) * 1985-12-11 1987-06-17 Fuji Heavy Ind Ltd Air-fuel ratio control system for automotive engines
FR2592685A1 (en) * 1986-01-06 1987-07-10 Renault Method for metering fuel for an internal combustion engine with electronic injection
US4844038A (en) * 1985-12-25 1989-07-04 Honda Giken Kogyo Kabushiki Kaisha Abnormality detecting method for exhaust gas concentration sensor for internal combustion engines
EP0423792A2 (en) * 1989-10-18 1991-04-24 Japan Electronic Control Systems Co., Ltd. Air/fuel ratio feedback control system for internal combustion engine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359029A (en) * 1979-05-31 1982-11-16 Nissan Motor Company, Limited Air/fuel ratio control system for an internal combustion engine
US4459669A (en) * 1980-06-30 1984-07-10 Toyota Jidosha Kogyo Kabushiki Kaisha Method and apparatus for controlling the air-fuel ratio in an internal combustion engine
EP0047968A1 (en) * 1980-09-12 1982-03-24 Hitachi, Ltd. Control system for internal combustion engine
US4491921A (en) * 1980-12-23 1985-01-01 Toyota Jidosha Kogyo Kabushiki Kaisha Method and apparatus for controlling the air fuel ratio in an internal combustion engine
GB2103845A (en) * 1981-08-13 1983-02-23 Honda Motor Co Ltd Air/fuel ratio feedback control system for internal combustion engines, having atmospheric pressure - dependent fail safe function for o2 sensor
US4502443A (en) * 1982-05-28 1985-03-05 Honda Giken Kogyo Kabushiki Kaisha Air/fuel ratio control method having fail-safe function for abnormalities in oxygen concentration detecting means for internal combustion engines
GB2184265A (en) * 1985-12-11 1987-06-17 Fuji Heavy Ind Ltd Air-fuel ratio control system for automotive engines
US4844038A (en) * 1985-12-25 1989-07-04 Honda Giken Kogyo Kabushiki Kaisha Abnormality detecting method for exhaust gas concentration sensor for internal combustion engines
FR2592685A1 (en) * 1986-01-06 1987-07-10 Renault Method for metering fuel for an internal combustion engine with electronic injection
EP0423792A2 (en) * 1989-10-18 1991-04-24 Japan Electronic Control Systems Co., Ltd. Air/fuel ratio feedback control system for internal combustion engine

Also Published As

Publication number Publication date
IT1261114B (en) 1996-05-09
EP0855498B1 (en) 2002-02-27
EP0856653A2 (en) 1998-08-05
EP0856653B1 (en) 2001-05-09
DE69413784D1 (en) 1998-11-12
EP0657637A2 (en) 1995-06-14
EP0855498A3 (en) 1998-08-26
ES2125389T3 (en) 1999-03-01
DE69427199D1 (en) 2001-06-13
DE69430017T2 (en) 2002-08-14
ITTO930857A0 (en) 1993-11-12
EP0855498A2 (en) 1998-07-29
DE69427199T2 (en) 2001-10-18
ES2172836T3 (en) 2002-10-01
DE69430017D1 (en) 2002-04-04
DE69413784T2 (en) 1999-02-25
ES2158630T3 (en) 2001-09-01
EP0856653A3 (en) 1998-08-26
BR9404572A (en) 1995-10-24
EP0657637B1 (en) 1998-10-07
ITTO930857A1 (en) 1995-05-12

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