ES2172836T3 - Sistema electronico para calcular la riqueza de mezcla. - Google Patents

Sistema electronico para calcular la riqueza de mezcla.

Info

Publication number
ES2172836T3
ES2172836T3 ES98105228T ES98105228T ES2172836T3 ES 2172836 T3 ES2172836 T3 ES 2172836T3 ES 98105228 T ES98105228 T ES 98105228T ES 98105228 T ES98105228 T ES 98105228T ES 2172836 T3 ES2172836 T3 ES 2172836T3
Authority
ES
Spain
Prior art keywords
engine
wealth
gasoline
state
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
ES98105228T
Other languages
English (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 Powertrain 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 Powertrain SpA filed Critical Magneti Marelli Powertrain SpA
Application granted granted Critical
Publication of ES2172836T3 publication Critical patent/ES2172836T3/es
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

SISTEMA PARA CALCULAR LA CONCENTRACION DE UNA MEZCLA EN EL CUAL UN PANEL ELECTRONICO (7) ES CAPAZ DE COMPARAR LA TENSION GENERADA POR LOS SENSORES DE LOS GASES DE ESCAPE, Y ESPECIALMENTE DE UNA SONDA LAMBDA (19) SITUADA EN EL COLECTOR DE ESCAPE (21) DE UN MOTOR DE GASOLINA (4), CON UN VALOR UMBRAL (STR) QUE PERMITE DISTINGUIR UN PRIMER Y UN SEGUNDO ESTADO (ESTADO RICO/ESTADO POBRE) CORRESPONDIENTE A UNA MEZCLA DE AIRE/GASOLINA ALIMENTADA AL MOTOR, QUE CONTIENE MAS O MENOS GASOLINA RESPECTIVAMENTE QUE LA CANTIDAD REQUERIDA POR LA RELACION ESTEQUIOMETRICA. EL SISTEMA PERMITE ACTUALIZAR ESTE UMBRAL PERIODICAMENTE.
ES98105228T 1993-11-12 1994-11-09 Sistema electronico para calcular la riqueza de mezcla. Expired - Lifetime ES2172836T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930857A IT1261114B (it) 1993-11-12 1993-11-12 Sistema elettronico di calcolo del titolo miscela.

Publications (1)

Publication Number Publication Date
ES2172836T3 true ES2172836T3 (es) 2002-10-01

Family

ID=11411876

Family Applications (3)

Application Number Title Priority Date Filing Date
ES98105227T Expired - Lifetime ES2158630T3 (es) 1993-11-12 1994-11-09 Sistema electronico para calcular la riqueza de mezcla.
ES94117678T Expired - Lifetime ES2125389T3 (es) 1993-11-12 1994-11-09 Sistema electronico para calcular la relacion de mezcla de combustible para un motor de combustion interna.
ES98105228T Expired - Lifetime ES2172836T3 (es) 1993-11-12 1994-11-09 Sistema electronico para calcular la riqueza de mezcla.

Family Applications Before (2)

Application Number Title Priority Date Filing Date
ES98105227T Expired - Lifetime ES2158630T3 (es) 1993-11-12 1994-11-09 Sistema electronico para calcular la riqueza de mezcla.
ES94117678T Expired - Lifetime ES2125389T3 (es) 1993-11-12 1994-11-09 Sistema electronico para calcular la relacion de mezcla de combustible para un motor de combustion interna.

Country Status (5)

Country Link
EP (3) EP0855498B1 (es)
BR (1) BR9404572A (es)
DE (3) DE69430017T2 (es)
ES (3) ES2158630T3 (es)
IT (1) IT1261114B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1285311B1 (it) * 1996-03-12 1998-06-03 Magneti Marelli Spa Metodo di diagnosi dell'efficienza di un sensore di composizione stechiometrica dei gas di scarico posto a valle di un convertitore
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 (ja) * 1979-05-31 1985-03-02 日産自動車株式会社 空燃比帰還制御装置
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 (ja) * 1981-08-13 1983-02-22 Honda Motor Co Ltd 内燃エンジン用空燃比帰還制御装置の故障検出装置
JPS58222939A (ja) * 1982-05-28 1983-12-24 Honda Motor Co Ltd 内燃エンジンの酸素濃度検出系故障時の空燃比制御方法
JPH0733790B2 (ja) * 1985-12-11 1995-04-12 富士重工業株式会社 自動車用エンジンの空燃比制御装置
JP2564510B2 (ja) * 1985-12-25 1996-12-18 本田技研工業株式会社 内燃エンジンの排気ガス濃度センサの異常検出方法
FR2592685B1 (fr) * 1986-01-06 1989-12-29 Renault Procede de dosage de carburant pour moteur a combustion interne a injection electronique.
JPH03134240A (ja) * 1989-10-18 1991-06-07 Japan Electron Control Syst Co Ltd 内燃機関の空燃比フィードバック制御装置

Also Published As

Publication number Publication date
ES2158630T3 (es) 2001-09-01
IT1261114B (it) 1996-05-09
EP0657637A3 (en) 1995-10-11
DE69413784D1 (de) 1998-11-12
EP0856653A3 (en) 1998-08-26
EP0855498A2 (en) 1998-07-29
BR9404572A (pt) 1995-10-24
ITTO930857A0 (it) 1993-11-12
DE69430017D1 (de) 2002-04-04
DE69427199T2 (de) 2001-10-18
EP0657637B1 (en) 1998-10-07
DE69430017T2 (de) 2002-08-14
EP0856653A2 (en) 1998-08-05
ITTO930857A1 (it) 1995-05-12
EP0855498B1 (en) 2002-02-27
DE69413784T2 (de) 1999-02-25
EP0855498A3 (en) 1998-08-26
EP0657637A2 (en) 1995-06-14
DE69427199D1 (de) 2001-06-13
EP0856653B1 (en) 2001-05-09
ES2125389T3 (es) 1999-03-01

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