IT1237223B - Procedimento per la determinazione dello stato di attivita' di un catalizzatore in sistemi di scarico di motori a combustione interna. - Google Patents

Procedimento per la determinazione dello stato di attivita' di un catalizzatore in sistemi di scarico di motori a combustione interna.

Info

Publication number
IT1237223B
IT1237223B IT04860989A IT4860989A IT1237223B IT 1237223 B IT1237223 B IT 1237223B IT 04860989 A IT04860989 A IT 04860989A IT 4860989 A IT4860989 A IT 4860989A IT 1237223 B IT1237223 B IT 1237223B
Authority
IT
Italy
Prior art keywords
catalyst
activity
procedure
determining
state
Prior art date
Application number
IT04860989A
Other languages
English (en)
Other versions
IT8948609A1 (it
IT8948609A0 (it
Original Assignee
Daimler Benz Ag
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 Daimler Benz Ag filed Critical Daimler Benz Ag
Publication of IT8948609A0 publication Critical patent/IT8948609A0/it
Publication of IT8948609A1 publication Critical patent/IT8948609A1/it
Application granted granted Critical
Publication of IT1237223B publication Critical patent/IT1237223B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus
    • F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/10—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using catalysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/02—Catalytic activity of catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Molecular Biology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
IT04860989A 1988-12-10 1989-11-28 Procedimento per la determinazione dello stato di attivita' di un catalizzatore in sistemi di scarico di motori a combustione interna. IT1237223B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3841685A DE3841685A1 (de) 1988-12-10 1988-12-10 Verfahren zur erkennung des zustandes von katalysatoren

Publications (3)

Publication Number Publication Date
IT8948609A0 IT8948609A0 (it) 1989-11-28
IT8948609A1 IT8948609A1 (it) 1991-05-28
IT1237223B true IT1237223B (it) 1993-05-27

Family

ID=6368911

Family Applications (1)

Application Number Title Priority Date Filing Date
IT04860989A IT1237223B (it) 1988-12-10 1989-11-28 Procedimento per la determinazione dello stato di attivita' di un catalizzatore in sistemi di scarico di motori a combustione interna.

Country Status (6)

Country Link
US (1) US5018348A (it)
JP (1) JPH02190756A (it)
DE (1) DE3841685A1 (it)
FR (1) FR2640383B1 (it)
GB (1) GB2225860B (it)
IT (1) IT1237223B (it)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5154055A (en) * 1990-01-22 1992-10-13 Nippondenso Co., Ltd. Apparatus for detecting purification factor of catalyst
JPH0417141U (it) * 1990-05-30 1992-02-13
JP2600987B2 (ja) * 1990-07-09 1997-04-16 日産自動車株式会社 空燃比制御装置の診断装置
DE4022546A1 (de) * 1990-07-16 1992-01-23 Emitec Emissionstechnologie Messfuehler fuer ein abgassystem und verfahren zu seinem betrieb
DE4024210C2 (de) * 1990-07-31 1999-09-02 Bosch Gmbh Robert Verfahren zur Lambdaregelung einer Brennkraftmaschine mit Katalysator
JP2943433B2 (ja) * 1990-08-24 1999-08-30 株式会社デンソー 触媒の浄化率検出装置
JP2705039B2 (ja) * 1990-08-28 1998-01-26 本田技研工業株式会社 内燃エンジンの三元触媒の劣化検出装置
DE4027207A1 (de) * 1990-08-28 1992-03-05 Emitec Emissionstechnologie Ueberwachung der katalytischen aktivitaet eines katalysators im abgassystem einer brennkraftmaschine
DE4032721A1 (de) * 1990-10-15 1992-04-16 Emitec Emissionstechnologie Ueberwachung der funktion eines von einem katalysierbaren fluid durchstroembaren katalysators
JP2796413B2 (ja) * 1990-08-29 1998-09-10 株式会社日立製作所 内燃機関の空燃比制御方法及び装置
JP3186076B2 (ja) * 1991-03-20 2001-07-11 株式会社日立製作所 内燃機関の排気浄化用触媒転換効率推定法
DE4128718C2 (de) * 1991-08-29 2001-02-01 Bosch Gmbh Robert Verfahren und Vorrichtung zur Kraftstoffmengenregelung für einen Verbrennungsmotor mit Katalysator
JPH0598947A (ja) * 1991-10-11 1993-04-20 Toyota Motor Corp 内燃機関の触媒劣化判別装置
JP2812023B2 (ja) * 1991-11-12 1998-10-15 トヨタ自動車株式会社 触媒劣化度検出装置
DE4139560C2 (de) * 1991-11-30 2001-02-22 Bosch Gmbh Robert Verfahren und Vorrichtung zum Gewinnen eines Beurteilungswertes für den Alterungszustand eines Katalysators
JPH05263686A (ja) * 1992-03-23 1993-10-12 Toyota Motor Corp 内燃機関の触媒劣化判別装置
JPH0650194A (ja) * 1992-07-31 1994-02-22 Honda Motor Co Ltd 内燃エンジンの酸素センサ劣化検出装置
JP3010921B2 (ja) * 1992-08-27 2000-02-21 日産自動車株式会社 内燃機関の触媒劣化診断装置
JP2624107B2 (ja) * 1992-12-09 1997-06-25 トヨタ自動車株式会社 触媒劣化検出装置
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
DE4342136B4 (de) * 1993-12-10 2004-03-11 Audi Ag Verfahren zur Diagnose einer Lambda-Sonde
JP3355807B2 (ja) * 1994-09-19 2002-12-09 日産自動車株式会社 内燃機関の酸素センサ付触媒コンバータ装置
DE19506012C2 (de) * 1995-02-17 1998-12-10 Siemens Ag Vorrichtung zur Anpassung von Verfahren zur Katalysatorwirkungsgradüberprüfung an Katalysatoren für Brennkraftmaschinen mit zwei Lambdasonden
KR100345733B1 (ko) * 1997-12-20 2002-09-18 주식회사 포스코 클라우스플랜트촉매수명분석방법
DE19801626B4 (de) * 1998-01-17 2010-08-12 Robert Bosch Gmbh Diagnose eines NOx-Speicherkatalysators beim Betrieb von Verbrennungsmotoren
US6286305B1 (en) 2000-02-23 2001-09-11 Daimlerchrysler Corporation Model based enrichment for exhaust temperature protection
DE10053629A1 (de) 2000-10-28 2002-05-02 Bayerische Motoren Werke Ag Steuerverfahren für einen Verbrennungsmotor mit einem Abgas-Katalysator
US6804951B2 (en) * 2002-11-06 2004-10-19 Ford Global Technologies, Llc On-board diagnostic catalyst monitoring system
EP1426751A1 (en) * 2002-12-02 2004-06-09 Delphi Technologies, Inc. Exhaust gas sampling device
DE10345896A1 (de) * 2003-09-30 2005-04-21 Emitec Emissionstechnologie Beschichteter Wabenkörper mit Messfühler
DE102004027907A1 (de) * 2004-06-09 2005-12-29 Emitec Gesellschaft Für Emissionstechnologie Mbh Regelsystem für eine mobile Verbrennungskraftmaschine
DE102004055231B3 (de) * 2004-11-16 2006-07-20 Siemens Ag Verfahren und Vorrichtung zur Lambda-Regelung bei einer Brennkraftmaschine
ATE386193T1 (de) * 2005-06-28 2008-03-15 Delphi Tech Inc Verfahren zum feststellen der wirksamkeit einer katalysatorvorrichtung im abgasstrang einer mehrzylindrigen brennkraftmaschine
RU2307074C1 (ru) * 2005-12-15 2007-09-27 Федеральное государственное образовательное учреждение высшего профессионального образования Ставропольский государственный аграрный университет Электроактиватор воды
US8110154B2 (en) * 2006-02-01 2012-02-07 Katcon Global S.A. Exhaust treatment device with sensor and method of making
GB0716833D0 (en) * 2007-08-31 2007-10-10 Nunn Andrew D On board diagnostic system
JP5135302B2 (ja) * 2009-08-25 2013-02-06 関西電力株式会社 酸素を含む流体の反応解析方法及び装置
DE102014208095B4 (de) * 2014-04-29 2016-06-30 Mtu Friedrichshafen Gmbh Verfahren zur Alterungserkennung eines heterogenen Katalysators, Abgasnachbehandlungssystem für eine Brennkraftmaschine und Brennkraftmaschine
DE102016121155B3 (de) * 2016-11-07 2017-07-13 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine mit einer Abgasnachbehandlung
BR202017013993U2 (pt) * 2017-06-28 2019-01-15 William Luiz De Lima dispositivo eletrônico de alerta para veículos
JP6881363B2 (ja) * 2018-03-16 2021-06-02 トヨタ自動車株式会社 異常診断装置
FR3155027A1 (fr) 2023-11-02 2025-05-09 Vitesco Technologies Procede et installation pour controler le fonctionnement d’un pot catalytique dans les gaz d’echappement d’un moteur a combustion interne

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444334A1 (de) * 1974-09-17 1976-03-25 Bosch Gmbh Robert Verfahren und einrichtung zur ueberwachung der aktivitaet von katalytischen reaktoren
DE2758835C2 (de) * 1977-12-30 1985-11-14 Robert Bosch Gmbh, 7000 Stuttgart Meßfühleranordnung
DE3224347A1 (de) * 1982-06-30 1983-08-04 Daimler-Benz Ag, 7000 Stuttgart Einrichtung zum verringern von abgas-schadstoffkomponenten einer brennkraftmaschine
CH668620A5 (de) * 1984-04-12 1989-01-13 Daimler Benz Ag Verfahren zur ueberpruefung und justierung von katalytischen abgasreinigungsanlagen von verbrennungsmotoren.
DE3443649A1 (de) * 1984-11-30 1986-06-05 Daimler-Benz Ag, 7000 Stuttgart Verfahren zur ueberpruefung der katalysatorfunktion bei einem mit (lambda)-sonden-regelung ausgeruesteten kraftfahrzeug-otto-motor
US4739614A (en) * 1985-02-22 1988-04-26 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system in internal combustion engine
JPH066913B2 (ja) * 1985-02-23 1994-01-26 トヨタ自動車株式会社 内燃機関の空燃比制御装置
US4707984A (en) * 1985-04-15 1987-11-24 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system having improved response characteristics
DE3524592C1 (de) * 1985-07-10 1986-09-25 Pierburg Gmbh & Co Kg, 4040 Neuss Verfahren zur UEberpruefung der Funktionstuechtigkeit katalytischer Reaktoren und Einrichtung zur Durchfuehrung des Verfahrens
DE3527175A1 (de) * 1985-07-30 1987-02-12 Daimler Benz Ag Verfahren zur erkennung des alterungszustandes eines abgaskatalysators bei einem mit (lambda)-sonderregelung des kraftstoff-luft-verhaeltnisses ausgeruesteten verbrennungsmotor
JPS6260941A (ja) * 1985-09-10 1987-03-17 Toyota Motor Corp 内燃機関の空燃比制御装置
US4707985A (en) * 1985-09-12 1987-11-24 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system carrying out learning control operation
DE3710268A1 (de) * 1987-03-28 1988-10-06 Phywe Systeme Gmbh Verfahren zur funktionsueberwachung von katalysatoren

Also Published As

Publication number Publication date
GB8927356D0 (en) 1990-01-31
DE3841685C2 (it) 1990-09-20
JPH02190756A (ja) 1990-07-26
DE3841685A1 (de) 1990-06-13
IT8948609A1 (it) 1991-05-28
FR2640383B1 (fr) 1994-06-03
US5018348A (en) 1991-05-28
IT8948609A0 (it) 1989-11-28
GB2225860B (en) 1993-06-23
GB2225860A (en) 1990-06-13
FR2640383A1 (fr) 1990-06-15

Similar Documents

Publication Publication Date Title
IT1237223B (it) Procedimento per la determinazione dello stato di attivita' di un catalizzatore in sistemi di scarico di motori a combustione interna.
KR100196611B1 (en) Monitoring of catalytic activity of a catalyst in the exhaust gas system of an internal combustion engine
IT8648295A0 (it) Procedimento per l'accertamento del lo stato di invecchiamento di catalizzatori per gas di scarico di motori a combustione interna
DE3663562D1 (en) Exhaust silencer for internal combustion engines
IT8219329A0 (it) Carburatore a doppio corpo ed impianto di aspirazione per motori a combustione interna.
IT8349175A0 (it) Impianto di alimentazione a due combustibili per motori a combustione interna
IT1232749B (it) Depuratore di gas di scarico ad attivita`catalitica e silenziatore per motori a combustione interna
IT1179718B (it) Silenziatore depuratore di scarico specialmente per motori a combustione interna
IT8467930A0 (it) Impianto silenziatore per gas di scarico di motori a combustione in terna
IT1237250B (it) Sistema di aspirazione per motori a combustione interna.
IT1148920B (it) Perfezionamento nei sistemi di accensione a stato solido per motori a combustione interna
SU1554486A1 (en) Exhaust silencer for internal combustion engine
FI841562A7 (fi) Turboahdetun polttomoottorin poistojärjestelmä.
CS563788A1 (en) Exhaust silencer for internal combustion engines
IT1202693B (it) Azionamento a valvole per motori diesel a combustione intena
IT9018111A0 (it) Marmitta catalitica per motori a combustione interna.
GB2136502B (en) Internal combustion engine exhaust silencer
IT8124470A0 (it) Struttura di marmitta di scarico per motori a combustione interna.
IT1219042B (it) Silenziatore di scarico per motori a combustione interna
IT1180663B (it) Dispositivo silenziatore di scarico per motori a combustione interna
IT8320128A0 (it) Impianto d'accensione per motori acombustione interna.
IT8966505A0 (it) Marmitta catalitica, per motori a carburazione e motori diesel, capace di fungere anche quale dispositivo silenziatore.
IT8520343A0 (it) Economizzatore di combustibile per motori a scoppio e diesel.
IT8419402A0 (it) Sistena di alimentazione per motori a combustione interna.
IT8320060A0 (it) Impianto di alimentazione dicombustibile gassoso adatto per motori a combustione interna sovralimentati.

Legal Events

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

Effective date: 19971127