ES2159785T3 - Procedimiento para establecer un diagnostico del funcionamiento de un detector de la composicion estequiometrica de los gases de escape, situado rio abajo de un convertidor catalitico. - Google Patents

Procedimiento para establecer un diagnostico del funcionamiento de un detector de la composicion estequiometrica de los gases de escape, situado rio abajo de un convertidor catalitico.

Info

Publication number
ES2159785T3
ES2159785T3 ES97104063T ES97104063T ES2159785T3 ES 2159785 T3 ES2159785 T3 ES 2159785T3 ES 97104063 T ES97104063 T ES 97104063T ES 97104063 T ES97104063 T ES 97104063T ES 2159785 T3 ES2159785 T3 ES 2159785T3
Authority
ES
Spain
Prior art keywords
diagnosis
composition
catalytic converter
estequiometric
exhaust gases
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
ES97104063T
Other languages
English (en)
Inventor
Claudio Carnevale
Paola Bianconi
Stefano Sgatti
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 ES2159785T3 publication Critical patent/ES2159785T3/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
    • F02D41/1473—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)
    • F02D41/148—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
    • F02D41/02—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
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/021—Engine temperature
    • 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
    • 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
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

EL METODO DE DIAGNOSIS DETERMINA EL ESTADO DE DETERIORO DE UN SENSOR DE COMPOSICION ESTEQUIOMETRICA DE GASES DE ESCAPE COLOCADO A CONTINUACION DE UN CONVERTIDOR CATALITICO. EL CONVERTIDOR CATALITICO VA MONTADO EN UN COLECTOR DE ESCAPE DE UN MOTOR DE COMBUSTION INTERNA ALIMENTADO CON UNA MEZCLA DE AIRE Y COMBUSTIBLE, MIENTRAS QUE EL SENSOR GENERA UNA SEÑAL DE SALIDA CORRELACIONADA CON LA COMPOSICION ESTEQUIOMETRICA DE LA MEZCLA. EL METODO COMPRENDE LAS FASES DE REGISTRO DE UNA SEÑAL DE TEMPERATURA CORRELACIONADA CON LA TEMPERATURA DEL MOTOR; DETERMINACION DEL REGIMEN DE FUNCIONAMIENTO DEL MOTOR; DETERMINACION DE LA COMPOSICION ESTEQUIOMETRICA DE LA MEZCLA DE AIRE Y COMBUSTIBLE, Y REALIZACION DE UNA DIAGNOSIS EN CALIENTE SI LA SEÑAL DE TEMPERATURA SOBREPASA UN VALOR DE REFERENCIA PREDEFINIDO, EL MOTOR ESTA EN REGIMEN DE RALENTI Y EL SENSOR REGISTRA UNA COMPOSICION ESTEQUIOMETRICA POBRE DE LA MEZCLA. LA DIAGNOSIS EN CALIENTE COMPRENDE LAS FASES DE GENERACION DE SEÑALES DE CONTROL PARA EL MOTORY CALIBRADO DE LA SEÑAL DE SALIDA DEL SENSOR.
ES97104063T 1996-03-12 1997-03-11 Procedimiento para establecer un diagnostico del funcionamiento de un detector de la composicion estequiometrica de los gases de escape, situado rio abajo de un convertidor catalitico. Expired - Lifetime ES2159785T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96TO000181A IT1285311B1 (it) 1996-03-12 1996-03-12 Metodo di diagnosi dell'efficienza di un sensore di composizione stechiometrica dei gas di scarico posto a valle di un convertitore

Publications (1)

Publication Number Publication Date
ES2159785T3 true ES2159785T3 (es) 2001-10-16

Family

ID=11414381

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97104063T Expired - Lifetime ES2159785T3 (es) 1996-03-12 1997-03-11 Procedimiento para establecer un diagnostico del funcionamiento de un detector de la composicion estequiometrica de los gases de escape, situado rio abajo de un convertidor catalitico.

Country Status (6)

Country Link
US (1) US5956943A (es)
EP (1) EP0796988B1 (es)
BR (1) BR9700396A (es)
DE (1) DE69705150T2 (es)
ES (1) ES2159785T3 (es)
IT (1) IT1285311B1 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19722334B4 (de) * 1997-05-28 2011-01-05 Robert Bosch Gmbh Abgassondendiagnoseverfahren und -vorrichtung
US5877413A (en) * 1998-05-28 1999-03-02 Ford Global Technologies, Inc. Sensor calibration for catalyst deterioration detection
US6374818B2 (en) * 2000-01-31 2002-04-23 Honda Giken Kogyo Kabushiki Kaisha Apparatus for determining a failure of an oxygen concentration sensor
KR100435707B1 (ko) * 2002-05-31 2004-06-12 현대자동차주식회사 차량의 리어 산소센서 고장 판정방법
JP2004019542A (ja) * 2002-06-17 2004-01-22 Toyota Motor Corp 酸素センサの異常検出装置
EP1437501B1 (en) * 2003-01-13 2007-03-07 Ford Global Technologies, LLC Lambda sensor diagnosis
JP4320778B2 (ja) * 2004-08-23 2009-08-26 株式会社デンソー 空燃比センサの異常診断装置
US7793489B2 (en) * 2005-06-03 2010-09-14 Gm Global Technology Operations, Inc. Fuel control for robust detection of catalytic converter oxygen storage capacity
DE102006047188B4 (de) * 2006-10-05 2009-09-03 Continental Automotive Gmbh Verfahren und Vorrichtung zum Überwachen einer Abgassonde
DE102007045080A1 (de) * 2007-09-21 2009-04-16 Continental Automotive Gmbh Verfahren und Vorrichtung zum Bestimmen einer dynamischen Eigenschaft eines Abgassensors
FR3003603B1 (fr) * 2013-03-19 2017-04-28 Renault Sas Procede de diagnostic d'un systeme de depollution
US9897028B2 (en) * 2013-06-26 2018-02-20 Toyota Jidosha Kabushiki Kaisha Diagnosis system of internal combustion engine
WO2014207843A1 (ja) * 2013-06-26 2014-12-31 トヨタ自動車株式会社 内燃機関の診断装置
JP6358148B2 (ja) 2015-03-31 2018-07-18 トヨタ自動車株式会社 内燃機関の排気浄化装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3948228A (en) * 1974-11-06 1976-04-06 The Bendix Corporation Exhaust gas sensor operational detection system
JPS5319887A (en) * 1976-08-08 1978-02-23 Nippon Soken Deterioration detecting apparatus for oxygen concentration detector
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
KR970010317B1 (ko) * 1989-06-16 1997-06-25 니뽄 도꾸슈 도교오 가부시끼가이샤 공연비 제어장치
JP2581828B2 (ja) * 1990-06-01 1997-02-12 株式会社日立製作所 内燃機関の空燃比制御方法及びその制御装置
JP2936809B2 (ja) * 1990-07-24 1999-08-23 株式会社デンソー 酸素センサーの劣化検出装置
JPH04116241A (ja) * 1990-09-05 1992-04-16 Honda Motor Co Ltd 内燃エンジンのｈｃセンサの性能監視装置
JPH04109445U (ja) * 1991-03-08 1992-09-22 本田技研工業株式会社 内燃機関の空燃比センサの故障診断装置
JPH05296088A (ja) * 1992-04-16 1993-11-09 Nippondenso Co Ltd 内燃機関の異常検出装置
US5357791A (en) * 1993-03-15 1994-10-25 Ford Motor Company OBD-II exhaust gas oxygen sensor
DE59306790D1 (de) * 1993-03-15 1997-07-24 Siemens Ag Verfahren zur Überprüfung von Lambdasonden
JP2869911B2 (ja) * 1993-04-15 1999-03-10 本田技研工業株式会社 内燃エンジンの酸素センサ劣化検出装置
JP2893308B2 (ja) * 1993-07-26 1999-05-17 株式会社ユニシアジェックス 内燃機関の空燃比制御装置
JP2858288B2 (ja) * 1993-09-02 1999-02-17 株式会社ユニシアジェックス 内燃機関の空燃比制御装置における自己診断装置
IT1261114B (it) * 1993-11-12 1996-05-09 Weber Srl Sistema elettronico di calcolo del titolo miscela.

Also Published As

Publication number Publication date
ITTO960181A0 (es) 1996-03-12
IT1285311B1 (it) 1998-06-03
DE69705150D1 (de) 2001-07-19
EP0796988A2 (en) 1997-09-24
ITTO960181A1 (it) 1997-09-12
BR9700396A (pt) 1999-05-11
EP0796988A3 (en) 1998-01-07
DE69705150T2 (de) 2002-03-07
US5956943A (en) 1999-09-28
EP0796988B1 (en) 2001-06-13

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