ES2125389T3 - ELECTRONIC SYSTEM TO CALCULATE THE FUEL MIXING RATIO FOR AN INTERNAL COMBUSTION ENGINE. - Google Patents

ELECTRONIC SYSTEM TO CALCULATE THE FUEL MIXING RATIO FOR AN INTERNAL COMBUSTION ENGINE.

Info

Publication number
ES2125389T3
ES2125389T3 ES94117678T ES94117678T ES2125389T3 ES 2125389 T3 ES2125389 T3 ES 2125389T3 ES 94117678 T ES94117678 T ES 94117678T ES 94117678 T ES94117678 T ES 94117678T ES 2125389 T3 ES2125389 T3 ES 2125389T3
Authority
ES
Spain
Prior art keywords
calculate
combustion engine
internal combustion
mixing ratio
electronic system
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
ES94117678T
Other languages
Spanish (es)
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
Application granted granted Critical
Publication of ES2125389T3 publication Critical patent/ES2125389T3/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)

Abstract

SE PRESENTA UN SISTEMA PARA CALCULO DE LA RIQUEZA DE LA MEZCLA EN EL QUE UN PANEL (7) ELECTRONICO PUEDE COMPARAR EL VOLTAJE GENERADO POR LOS SENSORES DE GAS DE ESCAPE, EN PARTICULAR DE UNA SONDA LAMBDA (19) LOCALIZADA EN EL TUBO DE UNION MULTIPLE DE ESCAPE (21) DE UN MOTOR DE GASOLINA (4), CON UN VALOR DE UMBRAL (STR) DE FORMA QUE DISTINGA ENTRE UN PRIMER Y UN SEGUNDO ESTADO (ESTADO RICO/ESTADO POBRE), CORRESPONDIENTE A UNA MEZCLA DE AIRE/GASOLINA AL MOTOR QUE CONTIENE MAS O MENOS GASOLINA, RESPECTIVAMENTE, QUE LA EXIGIDA POR LA RELACION ESTEQUIOMETRICA. EL SISTEMA PERMITE ACTUALIZAR PERIODICAMENTE ESTE UMBRAL.A SYSTEM FOR THE CALCULATION OF THE MIXTURE WEALTH IS PRESENTED IN WHICH AN ELECTRONIC PANEL (7) CAN COMPARE THE VOLTAGE GENERATED BY THE EXHAUST GAS SENSORS, IN PARTICULAR OF A LAMBDA PROBE (19) LOCATED IN THE MULTIPLE UNION TUBE EXHAUST (21) FROM A PETROL ENGINE (4), WITH A THRESHOLD VALUE (STR) IN A DIFFERENT BETWEEN A FIRST AND A SECOND STATE (RICH STATE / POOR STATE), CORRESPONDING TO AN AIR / GASOLINE MIXTURE ENGINE THAT CONTAINS MORE OR LESS GASOLINE, RESPECTIVELY, THAN THAT REQUIRED BY THE ESTEKIOMETRIC RELATION. THE SYSTEM ALLOWS TO UPDATE PERIODICALLY THIS THRESHOLD.

ES94117678T 1993-11-12 1994-11-09 ELECTRONIC SYSTEM TO CALCULATE THE FUEL MIXING RATIO FOR AN INTERNAL COMBUSTION ENGINE. Expired - Lifetime ES2125389T3 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES2125389T3 true ES2125389T3 (en) 1999-03-01

Family

ID=11411876

Family Applications (3)

Application Number Title Priority Date Filing Date
ES98105228T Expired - Lifetime ES2172836T3 (en) 1993-11-12 1994-11-09 ELECTRONIC SYSTEM TO CALCULATE MIXING WEALTH.
ES98105227T Expired - Lifetime ES2158630T3 (en) 1993-11-12 1994-11-09 ELECTRONIC SYSTEM TO CALCULATE THE MIXING WEALTH.
ES94117678T Expired - Lifetime ES2125389T3 (en) 1993-11-12 1994-11-09 ELECTRONIC SYSTEM TO CALCULATE THE FUEL MIXING RATIO FOR AN INTERNAL COMBUSTION ENGINE.

Family Applications Before (2)

Application Number Title Priority Date Filing Date
ES98105228T Expired - Lifetime ES2172836T3 (en) 1993-11-12 1994-11-09 ELECTRONIC SYSTEM TO CALCULATE MIXING WEALTH.
ES98105227T Expired - Lifetime ES2158630T3 (en) 1993-11-12 1994-11-09 ELECTRONIC SYSTEM TO CALCULATE THE MIXING WEALTH.

Country Status (5)

Country Link
EP (3) EP0657637B1 (en)
BR (1) BR9404572A (en)
DE (3) DE69427199T2 (en)
ES (3) ES2172836T3 (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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608328B2 (en) * 1979-05-31 1985-03-02 日産自動車株式会社 Air-fuel ratio feedback control device
JPS5713245A (en) * 1980-06-30 1982-01-23 Toyota Motor Corp Method of controlling air fuel ratio of internal combustion engine
JPS5751936A (en) * 1980-09-12 1982-03-27 Hitachi Ltd Controlling and trouble discrimination initializing timing setting system for engine controller
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
JPS5830446A (en) * 1981-08-13 1983-02-22 Honda Motor Co Ltd Trouble detection device of air-fuel ratio feed-back control unit for internal combustion engine
JPS58222939A (en) * 1982-05-28 1983-12-24 Honda Motor Co Ltd Method of controlling air fuel ratio of internal combustion engine in trouble of oxygen concentration detecting system
JPH0733790B2 (en) * 1985-12-11 1995-04-12 富士重工業株式会社 Air-fuel ratio controller for automobile engine
JP2564510B2 (en) * 1985-12-25 1996-12-18 本田技研工業株式会社 Abnormality detection method for exhaust gas concentration sensor of internal combustion engine
FR2592685B1 (en) * 1986-01-06 1989-12-29 Renault FUEL DOSING METHOD FOR ELECTRONIC INJECTION INTERNAL COMBUSTION ENGINE.
JPH03134240A (en) * 1989-10-18 1991-06-07 Japan Electron Control Syst Co Ltd Air-fuel ratio feedback controller of internal combustion engine

Also Published As

Publication number Publication date
EP0856653A2 (en) 1998-08-05
EP0855498A3 (en) 1998-08-26
DE69430017T2 (en) 2002-08-14
IT1261114B (en) 1996-05-09
BR9404572A (en) 1995-10-24
ITTO930857A1 (en) 1995-05-12
EP0856653B1 (en) 2001-05-09
EP0657637A2 (en) 1995-06-14
ITTO930857A0 (en) 1993-11-12
DE69413784D1 (en) 1998-11-12
EP0855498A2 (en) 1998-07-29
ES2158630T3 (en) 2001-09-01
EP0657637B1 (en) 1998-10-07
DE69427199D1 (en) 2001-06-13
EP0856653A3 (en) 1998-08-26
ES2172836T3 (en) 2002-10-01
DE69427199T2 (en) 2001-10-18
EP0855498B1 (en) 2002-02-27
DE69413784T2 (en) 1999-02-25
DE69430017D1 (en) 2002-04-04
EP0657637A3 (en) 1995-10-11

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