IT1285311B1 - Metodo di diagnosi dell'efficienza di un sensore di composizione stechiometrica dei gas di scarico posto a valle di un convertitore - Google Patents

Metodo di diagnosi dell'efficienza di un sensore di composizione stechiometrica dei gas di scarico posto a valle di un convertitore

Info

Publication number
IT1285311B1
IT1285311B1 IT96TO000181A ITTO960181A IT1285311B1 IT 1285311 B1 IT1285311 B1 IT 1285311B1 IT 96TO000181 A IT96TO000181 A IT 96TO000181A IT TO960181 A ITTO960181 A IT TO960181A IT 1285311 B1 IT1285311 B1 IT 1285311B1
Authority
IT
Italy
Prior art keywords
stoichiometric composition
engine
exhaust gas
sensor
placed downstream
Prior art date
Application number
IT96TO000181A
Other languages
English (en)
Inventor
Claudio Carnevale
Paola Bianconi
Stefano Sgatti
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 IT96TO000181A priority Critical patent/IT1285311B1/it
Publication of ITTO960181A0 publication Critical patent/ITTO960181A0/it
Priority to ES97104063T priority patent/ES2159785T3/es
Priority to EP97104063A priority patent/EP0796988B1/en
Priority to DE69705150T priority patent/DE69705150T2/de
Priority to US08/816,137 priority patent/US5956943A/en
Priority to BR9700396A priority patent/BR9700396A/pt
Publication of ITTO960181A1 publication Critical patent/ITTO960181A1/it
Application granted granted Critical
Publication of IT1285311B1 publication Critical patent/IT1285311B1/it

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)
IT96TO000181A 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 IT1285311B1 (it)

Priority Applications (6)

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
ES97104063T 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.
EP97104063A EP0796988B1 (en) 1996-03-12 1997-03-11 Method of diagnosing the efficiency of an exhaust gas stoichiometric composition sensor placed downstream of a catalytic converter
DE69705150T DE69705150T2 (de) 1996-03-12 1997-03-11 Verfahren zur Diagnose des Wirkungsgrades eines stromabwärts von einem Katalysator angeordneten Stochiometrischen Abgassensors
US08/816,137 US5956943A (en) 1996-03-12 1997-03-12 Method of diagnosing the efficiency of an exhaust gas stoichiometric composition sensor placed downstream of a catalytic converter
BR9700396A BR9700396A (pt) 1996-03-12 1997-03-12 Método para diagnosticar a eficiência de um sensor de composição estequiométrica de gás de exaustão localizado a jusante de um conversor catalítico

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 (3)

Publication Number Publication Date
ITTO960181A0 ITTO960181A0 (it) 1996-03-12
ITTO960181A1 ITTO960181A1 (it) 1997-09-12
IT1285311B1 true IT1285311B1 (it) 1998-06-03

Family

ID=11414381

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (6)

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

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
RU2634911C2 (ru) * 2013-06-26 2017-11-08 Тойота Дзидося Кабусики Кайся Система диагностики двигателя внутреннего сгорания
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
EP0616119B1 (de) * 1993-03-15 1997-06-18 Siemens Aktiengesellschaft 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
EP0796988A3 (en) 1998-01-07
EP0796988B1 (en) 2001-06-13
ITTO960181A0 (it) 1996-03-12
DE69705150D1 (de) 2001-07-19
ITTO960181A1 (it) 1997-09-12
ES2159785T3 (es) 2001-10-16
US5956943A (en) 1999-09-28
DE69705150T2 (de) 2002-03-07
BR9700396A (pt) 1999-05-11
EP0796988A2 (en) 1997-09-24

Similar Documents

Publication Publication Date Title
CA2060433C (en) Control apparatus for speedily warming up catalyst in internal combustion engine
IT1285311B1 (it) Metodo di diagnosi dell'efficienza di un sensore di composizione stechiometrica dei gas di scarico posto a valle di un convertitore
EP0844379A3 (en) Method of judging deterioration of catalytic converter for purifying exhaust gas
EP1321653A3 (en) Air-fuel ratio control system for internal combustion engines
EP1464816A3 (en) Diagnosis system of exhaust aftertreatment apparatus for internal combustion engine
JPH094502A (ja) 内燃機関の排気系雰囲気温度検出装置
CA2096382A1 (en) Air-Fuel Ratio Control System for Internal Combustion Engines
EP0937879A3 (en) Air-fuel ratio control system for multi-cylinder internal combustion engine
EP0926321A3 (en) Deterioration determination apparatus for exhaust emission control device of internal combustion engine
GB2157857A (en) Air-fuel ratio control system
EP0893593A3 (en) Control apparatus for use in internal combustion engine performing stratified charge combustion
EP0064664B1 (en) Electronic control apparatus for internal combustion engine
JPS5698542A (en) Air-fuel ratio controlling system for engine
EP0690216A3 (en) Air-fuel ratio control system for internal combustion engines
US6295806B1 (en) Catalyst temperature model
JPS5623510A (en) Exhaust gas cleaning method for internal combustion engine
US6102015A (en) Diagnostic device and method for exhaust gas recirculation system
DE60010031D1 (de) Verfahren und vorichtung zur steuerung der betriebsart einer brennkraftmaschine
EP1136670A3 (de) Vorrichtung und Verfahren zur Funktionsüberwachung eines 3-Wege-Katalysators im Abgaskanal einer Verbrennungskraftmaschine
JPS6354888B2 (it)
EP0541922A3 (en) Method and device for catalytic post-combustion of exhaust gas of an internal combustion engine
JPS5664139A (en) Air fuel ratio controller
FR2793027B1 (fr) Procede de commande du chauffage d'un capteur electrochimique pour l'analyse des gaz d'echappement d'un moteur a combustion de vehicule
JPH1018918A (ja) 内燃機関の排気還流制御装置
JPS603534A (ja) 内燃エンジンにおける大気圧測定方法

Legal Events

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

Effective date: 19990330