DE2444334A1 - Verfahren und einrichtung zur ueberwachung der aktivitaet von katalytischen reaktoren - Google Patents
Verfahren und einrichtung zur ueberwachung der aktivitaet von katalytischen reaktorenInfo
- Publication number
- DE2444334A1 DE2444334A1 DE19742444334 DE2444334A DE2444334A1 DE 2444334 A1 DE2444334 A1 DE 2444334A1 DE 19742444334 DE19742444334 DE 19742444334 DE 2444334 A DE2444334 A DE 2444334A DE 2444334 A1 DE2444334 A1 DE 2444334A1
- Authority
- DE
- Germany
- Prior art keywords
- internal combustion
- combustion engine
- threshold
- exhaust gas
- switch
- 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.)
- Withdrawn
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
- 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
-
- 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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
- F02B77/086—Sensor arrangements in the exhaust, e.g. for temperature, misfire, air/fuel ratio, oxygen sensors
-
- 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
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
-
- 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
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
- F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Exhaust Gas After Treatment (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742444334 DE2444334A1 (de) | 1974-09-17 | 1974-09-17 | Verfahren und einrichtung zur ueberwachung der aktivitaet von katalytischen reaktoren |
| US05/604,320 US3969932A (en) | 1974-09-17 | 1975-08-13 | Method and apparatus for monitoring the activity of catalytic reactors |
| SE7510333A SE417998B (sv) | 1974-09-17 | 1975-09-16 | Sett att overvaka verkningssettet hos en katalytisk reaktor och anordning for genomforande av settet |
| GB3795775A GB1469390A (en) | 1974-09-17 | 1975-09-16 | Internal combustion engine exhaust systems |
| JP50112044A JPS5155818A (enExample) | 1974-09-17 | 1975-09-16 | |
| FR7528522A FR2285517A1 (fr) | 1974-09-17 | 1975-09-17 | Procede et installation pour controler l'activite de reacteurs catalytiques |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742444334 DE2444334A1 (de) | 1974-09-17 | 1974-09-17 | Verfahren und einrichtung zur ueberwachung der aktivitaet von katalytischen reaktoren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2444334A1 true DE2444334A1 (de) | 1976-03-25 |
Family
ID=5925956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19742444334 Withdrawn DE2444334A1 (de) | 1974-09-17 | 1974-09-17 | Verfahren und einrichtung zur ueberwachung der aktivitaet von katalytischen reaktoren |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3969932A (enExample) |
| JP (1) | JPS5155818A (enExample) |
| DE (1) | DE2444334A1 (enExample) |
| FR (1) | FR2285517A1 (enExample) |
| GB (1) | GB1469390A (enExample) |
| SE (1) | SE417998B (enExample) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3339429A1 (de) * | 1983-10-29 | 1985-05-09 | Volkswagenwerk Ag, 3180 Wolfsburg | Einrichtung zur reduzierung von abgas-schadstoffen |
| DE3619897A1 (de) * | 1986-06-13 | 1987-12-17 | Bayerische Motoren Werke Ag | Schutz-schaltung fuer katalytische abgasnachbehandlungsvorrichtungen |
| DE3627437A1 (de) * | 1986-08-13 | 1988-02-18 | Bayerische Motoren Werke Ag | Schutzvorrichtung fuer einen abgas-katalysator einer brennkraftmaschine mit einer lambda-regeleinrichtung |
| DE3830515A1 (de) * | 1988-09-08 | 1990-03-22 | Bayerische Motoren Werke Ag | Verfahren zur ueberpruefung der funktion des abgaskatalysators einer brennkraftmaschine |
| FR2640383A1 (fr) * | 1988-12-10 | 1990-06-15 | Daimler Benz Ag | Procede et dispositif pour determiner l'etat de catalyseurs dans des moteurs a combustion interne |
| DE4027207A1 (de) * | 1990-08-28 | 1992-03-05 | Emitec Emissionstechnologie | Ueberwachung der katalytischen aktivitaet eines katalysators im abgassystem einer brennkraftmaschine |
| FR2675538A1 (fr) * | 1991-04-17 | 1992-10-23 | Bosch Gmbh Robert | Procede et dispositif pour determiner l'etat de vieillissement d'un catalyseur. |
| DE4320881A1 (de) * | 1993-02-26 | 1994-09-01 | Roth Forschung Gmbh & Co Autom | Kombination von Lambda-Sonden |
| FR2773844A1 (fr) | 1998-01-17 | 1999-07-23 | Bosch Gmbh Robert | Procede et dispositif pour le diagnostic d'un catalyseur de stockage de nox applicable a des moteurs a combustion |
| FR2783872A1 (fr) * | 1998-09-25 | 2000-03-31 | Bosch Gmbh Robert | Diagnostic d'un catalyseur a trois voies ou d'un catalyseur a accumulation de nox |
| DE4128823C2 (de) * | 1991-08-30 | 2000-06-29 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Bestimmen des Speichervermögens eines Katalysators |
| DE4331153C2 (de) * | 1992-09-26 | 2001-02-01 | Volkswagen Ag | Verfahren zur Gewinnung von fehlerspezifischen Beurteilungskriterien eines Abgaskatalysators und einer Regel-Lambdasonde |
| DE4125154C2 (de) * | 1991-07-30 | 2001-02-22 | Bosch Gmbh Robert | Verfahren und Einrichtung zur Lambdasonden-Überwachung bei einer Brennkraftmaschine |
| DE4112477C2 (de) * | 1991-04-17 | 2001-03-08 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Simulieren des zeitlichen Verhaltens des Lambda-Wertes am Auslaß eines Abgaskatalysators und zur Betimmung des Alterungszustandes des Katalysators |
| DE19850338C2 (de) * | 1998-11-02 | 2001-11-22 | Heraeus Electro Nite Int | Verfahren und Einrichtung zur Kontrolle und Beobachtung der Alterung eines Katalysators im Abgas von Verbrennungskraftmaschinen und des Schadstoffausstoßes |
| WO2002008584A1 (de) | 2000-07-26 | 2002-01-31 | Robert Bosch Gmbh | VERFAHREN ZUM BETREIBEN EINES STICKOXID (NOx)-SPEICHERKATALYSATORS |
| WO2002008594A1 (de) | 2000-07-21 | 2002-01-31 | Robert Bosch Gmbh | Verfahren zum betreiben eines katalysators |
| DE4112479C2 (de) * | 1991-04-17 | 2002-06-06 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Bestimmen des Alterungszustandes eines Katalysators |
| US6401453B1 (en) | 1998-03-17 | 2002-06-11 | Siemens Aktiengesellschaft | Method and device for monitoring the functional ability of a catalyst of an internal combustion engine |
| DE102004050629B4 (de) * | 2004-10-18 | 2008-05-15 | Audi Ag | Verfahren zur Bestimmung der Sauerstoffspeicherkapazität eines Oxidationskatalysators |
| DE102011010011A1 (de) | 2011-02-02 | 2012-08-02 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zur Erkennung von Fehlfunktionen des Abgasnachbehandlungssystems einer Verbrennungskraftmaschine |
| DE19801629B4 (de) * | 1998-01-17 | 2012-08-23 | Robert Bosch Gmbh | Katalysatordiagnoseverfahren und Vorrichtung |
| DE10305452B4 (de) * | 2002-12-30 | 2013-04-18 | Volkswagen Ag | Verfahren zur Diagnose eines Katalysators im Abgasstrom einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens |
Families Citing this family (105)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5319887A (en) * | 1976-08-08 | 1978-02-23 | Nippon Soken | Deterioration detecting apparatus for oxygen concentration detector |
| US4031747A (en) * | 1976-08-16 | 1977-06-28 | Beckman Instruments, Inc. | Misfire monitor for engine analysis having automatic rescaling |
| US4030349A (en) * | 1976-08-16 | 1977-06-21 | Beckman Instruments, Inc. | Engine analysis apparatus |
| JPS606735Y2 (ja) * | 1979-03-01 | 1985-03-05 | 三菱自動車工業株式会社 | 機関の吸気装置 |
| US4315243A (en) * | 1980-09-16 | 1982-02-09 | Calvert Sr Willard R | Unused fuel indicator for automotive engines employing catalytic converters |
| DE3500594C2 (de) * | 1985-01-10 | 1995-08-17 | Bosch Gmbh Robert | Zumeßsystem für eine Brennkraftmaschine zur Beeinflussung des Betriebsgemisches |
| DE3503381A1 (de) * | 1985-02-01 | 1986-08-07 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zur steuerung oder regelung von brennkraftmaschinen |
| JPS61196149A (ja) * | 1985-02-27 | 1986-08-30 | Fuji Heavy Ind Ltd | O2センサ劣化警報装置 |
| 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 |
| JP2533885B2 (ja) * | 1986-08-06 | 1996-09-11 | 日立金属株式会社 | 耐熱管状部材の試験装置 |
| JPS6383415U (enExample) * | 1986-11-20 | 1988-06-01 | ||
| USRE34315E (en) * | 1988-06-22 | 1993-07-20 | Remote mixture control tool | |
| US5060473A (en) * | 1988-07-13 | 1991-10-29 | Nissan Motor Company, Limited | System for detecting deterioration of catalyst in catalytic converter |
| EP0387254A1 (en) * | 1988-09-10 | 1990-09-19 | Robert Bosch Gmbh | Engine misfire detection and engine exhaust systems |
| DE8915832U1 (de) * | 1989-07-18 | 1991-09-05 | Gutmann Messtechnik AG, Hergiswil | Vorrichtung zum Messen von Abgaswerten bei Kraftfahrzeugen |
| JP2518696B2 (ja) * | 1989-07-26 | 1996-07-24 | 日産自動車株式会社 | 内燃機関の排気浄化システムの診断装置 |
| US5154055A (en) * | 1990-01-22 | 1992-10-13 | Nippondenso Co., Ltd. | Apparatus for detecting purification factor of catalyst |
| GB9003316D0 (en) * | 1990-02-14 | 1990-04-11 | Lucas Ind Plc | Monitoring of operation of catalytic converter |
| DE4009901A1 (de) * | 1990-03-28 | 1991-10-02 | Bosch Gmbh Robert | Verfahren und vorrichtung zur ueberwachung des konvertierungsgrades eines katalysators im abgassystem einer brennkraftmaschine |
| JP2984312B2 (ja) * | 1990-04-11 | 1999-11-29 | 日本特殊陶業株式会社 | 空燃比センサによる触媒の浄化率測定方法及びその劣化時期検知方法 |
| US5357750A (en) * | 1990-04-12 | 1994-10-25 | Ngk Spark Plug Co., Ltd. | Method for detecting deterioration of catalyst and measuring conversion efficiency thereof with an air/fuel ratio sensor |
| JPH0417141U (enExample) * | 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 |
| 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 |
| 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 |
| JPH0726580B2 (ja) * | 1990-11-20 | 1995-03-29 | トヨタ自動車株式会社 | 内燃機関の触媒劣化判定装置 |
| DE4039762A1 (de) * | 1990-12-13 | 1992-06-17 | Bosch Gmbh Robert | Verfahren und vorrichtung zum ueberpruefen des alterungszustandes eines katalysators |
| US5228335A (en) * | 1991-02-25 | 1993-07-20 | The United States Of America As Represented By The United States Environmental Protection Agency | Method and apparatus for detection of catalyst failure on-board a motor vehicle using a dual oxygen sensor and an algorithm |
| 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 |
| JP2504265Y2 (ja) * | 1991-06-24 | 1996-07-10 | 本田技研工業株式会社 | 排気浄化触媒装置 |
| US5363091A (en) * | 1991-08-07 | 1994-11-08 | Ford Motor Company | Catalyst monitoring using ego sensors |
| US5268086A (en) * | 1991-08-07 | 1993-12-07 | Ford Motor Company | Catalyst monitoring using ego sensors |
| US5159810A (en) * | 1991-08-26 | 1992-11-03 | Ford Motor Company | Catalytic converter monitoring using downstream oxygen sensor |
| DE4128997A1 (de) * | 1991-08-31 | 1993-03-04 | Abb Patent Gmbh | Verfahren und vorrichtung zur regelung und pruefung |
| US5408215A (en) * | 1991-09-04 | 1995-04-18 | Ford Motor Company | Catalyst monitoring using a hydrocarbon sensor |
| US5177464A (en) * | 1991-09-04 | 1993-01-05 | Ford Motor Company | Catalyst monitoring using a hydrocarbon sensor |
| US5325664A (en) * | 1991-10-18 | 1994-07-05 | Honda Giken Kogyo Kabushiki Kaisha | System for determining deterioration of catalysts of internal combustion engines |
| DE4211092A1 (de) * | 1992-04-03 | 1993-10-07 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Beurteilen der Funktionsfähigkeit eines Katalysators |
| US5319921A (en) * | 1992-08-04 | 1994-06-14 | Ford Motor Company | Catalytic converter efficiency monitoring |
| US5265416A (en) * | 1992-08-27 | 1993-11-30 | Ford Motor Company | On-board catalytic converter efficiency monitoring |
| US5289678A (en) * | 1992-11-25 | 1994-03-01 | Ford Motor Company | Apparatus and method of on-board catalytic converter efficiency monitoring |
| US5265417A (en) * | 1993-01-07 | 1993-11-30 | Ford Motor Company | Method and apparatus for determining the hydrocarbon conversion efficiency of a catalytic converter |
| JPH07225203A (ja) * | 1994-02-15 | 1995-08-22 | Mitsubishi Electric Corp | 触媒コンバータの劣化検出装置 |
| US5847271A (en) * | 1996-05-08 | 1998-12-08 | Chrysler Corporation | Catalytic converter efficiency monitor |
| DE19801625A1 (de) * | 1998-01-17 | 1999-07-22 | Bosch Gmbh Robert | Diagnose eines NOx-Speicherkatalysators beim Betrieb von Verbrennungsmotoren |
| US6035632A (en) * | 1998-08-18 | 2000-03-14 | Chrysler Corporation | Step response catalyst monitoring |
| US6481199B1 (en) | 2000-03-17 | 2002-11-19 | Ford Global Technologies, Inc. | Control for improved vehicle performance |
| US6539704B1 (en) | 2000-03-17 | 2003-04-01 | Ford Global Technologies, Inc. | Method for improved vehicle performance |
| US6308697B1 (en) | 2000-03-17 | 2001-10-30 | Ford Global Technologies, Inc. | Method for improved air-fuel ratio control in engines |
| US6308515B1 (en) | 2000-03-17 | 2001-10-30 | Ford Global Technologies, Inc. | Method and apparatus for accessing ability of lean NOx trap to store exhaust gas constituent |
| US6477832B1 (en) | 2000-03-17 | 2002-11-12 | Ford Global Technologies, Inc. | Method for improved performance of a vehicle having an internal combustion engine |
| US6360530B1 (en) | 2000-03-17 | 2002-03-26 | Ford Global Technologies, Inc. | Method and apparatus for measuring lean-burn engine emissions |
| US6810659B1 (en) * | 2000-03-17 | 2004-11-02 | Ford Global Technologies, Llc | Method for determining emission control system operability |
| US6499293B1 (en) | 2000-03-17 | 2002-12-31 | Ford Global Technologies, Inc. | Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine |
| US6434930B1 (en) | 2000-03-17 | 2002-08-20 | Ford Global Technologies, Inc. | Method and apparatus for controlling lean operation of an internal combustion engine |
| US6427437B1 (en) | 2000-03-17 | 2002-08-06 | Ford Global Technologies, Inc. | Method for improved performance of an engine emission control system |
| US6594989B1 (en) | 2000-03-17 | 2003-07-22 | Ford Global Technologies, Llc | Method and apparatus for enhancing fuel economy of a lean burn internal combustion engine |
| US6438944B1 (en) | 2000-03-17 | 2002-08-27 | Ford Global Technologies, Inc. | Method and apparatus for optimizing purge fuel for purging emissions control device |
| US6629453B1 (en) | 2000-03-17 | 2003-10-07 | Ford Global Technologies, Llc | Method and apparatus for measuring the performance of an emissions control device |
| US6708483B1 (en) | 2000-03-17 | 2004-03-23 | Ford Global Technologies, Llc | Method and apparatus for controlling lean-burn engine based upon predicted performance impact |
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| US6843051B1 (en) | 2000-03-17 | 2005-01-18 | Ford Global Technologies, Llc | Method and apparatus for controlling lean-burn engine to purge trap of stored NOx |
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| US6487849B1 (en) | 2000-03-17 | 2002-12-03 | Ford Global Technologies, Inc. | Method and apparatus for controlling lean-burn engine based upon predicted performance impact and trap efficiency |
| US6860100B1 (en) | 2000-03-17 | 2005-03-01 | Ford Global Technologies, Llc | Degradation detection method for an engine having a NOx sensor |
| US6327847B1 (en) | 2000-03-17 | 2001-12-11 | Ford Global Technologies, Inc. | Method for improved performance of a vehicle |
| US6370868B1 (en) | 2000-04-04 | 2002-04-16 | Ford Global Technologies, Inc. | Method and system for purge cycle management of a lean NOx trap |
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| US6502387B1 (en) | 2001-06-19 | 2003-01-07 | Ford Global Technologies, Inc. | Method and system for controlling storage and release of exhaust gas constituents in an emission control device |
| US6490860B1 (en) | 2001-06-19 | 2002-12-10 | Ford Global Technologies, Inc. | Open-loop method and system for controlling the storage and release cycles of an emission control device |
| US6539706B2 (en) | 2001-06-19 | 2003-04-01 | Ford Global Technologies, Inc. | Method and system for preconditioning an emission control device for operation about stoichiometry |
| US6694244B2 (en) | 2001-06-19 | 2004-02-17 | Ford Global Technologies, Llc | Method for quantifying oxygen stored in a vehicle emission control device |
| US6453666B1 (en) | 2001-06-19 | 2002-09-24 | Ford Global Technologies, Inc. | Method and system for reducing vehicle tailpipe emissions when operating lean |
| US6487853B1 (en) | 2001-06-19 | 2002-12-03 | Ford Global Technologies. Inc. | Method and system for reducing lean-burn vehicle emissions using a downstream reductant sensor |
| US6553754B2 (en) | 2001-06-19 | 2003-04-29 | Ford Global Technologies, Inc. | Method and system for controlling an emission control device based on depletion of device storage capacity |
| US6691020B2 (en) | 2001-06-19 | 2004-02-10 | Ford Global Technologies, Llc | Method and system for optimizing purge of exhaust gas constituent stored in an emission control device |
| US6463733B1 (en) | 2001-06-19 | 2002-10-15 | Ford Global Technologies, Inc. | Method and system for optimizing open-loop fill and purge times for an emission control device |
| US6604504B2 (en) | 2001-06-19 | 2003-08-12 | Ford Global Technologies, Llc | Method and system for transitioning between lean and stoichiometric operation of a lean-burn engine |
| US6467259B1 (en) | 2001-06-19 | 2002-10-22 | Ford Global Technologies, Inc. | Method and system for operating dual-exhaust engine |
| US6650991B2 (en) | 2001-06-19 | 2003-11-18 | Ford Global Technologies, Llc | Closed-loop method and system for purging a vehicle emission control |
| US6615577B2 (en) | 2001-06-19 | 2003-09-09 | Ford Global Technologies, Llc | Method and system for controlling a regeneration cycle of an emission control device |
| US6546718B2 (en) | 2001-06-19 | 2003-04-15 | Ford Global Technologies, Inc. | Method and system for reducing vehicle emissions using a sensor downstream of an emission control device |
| US6532734B1 (en) | 2002-02-01 | 2003-03-18 | Ford Global Technologies, Inc. | On-board diagnostic catalyst monitoring system |
| US6758185B2 (en) * | 2002-06-04 | 2004-07-06 | Ford Global Technologies, Llc | Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics |
| US6745747B2 (en) | 2002-06-04 | 2004-06-08 | Ford Global Technologies, Llc | Method for air-fuel ratio control of a lean burn engine |
| US7111450B2 (en) * | 2002-06-04 | 2006-09-26 | Ford Global Technologies, Llc | Method for controlling the temperature of an emission control device |
| US6868827B2 (en) | 2002-06-04 | 2005-03-22 | Ford Global Technologies, Llc | Method for controlling transitions between operating modes of an engine for rapid heating of an emission control device |
| US6568177B1 (en) | 2002-06-04 | 2003-05-27 | Ford Global Technologies, Llc | Method for rapid catalyst heating |
| US6736120B2 (en) * | 2002-06-04 | 2004-05-18 | Ford Global Technologies, Llc | Method and system of adaptive learning for engine exhaust gas sensors |
| US7168239B2 (en) * | 2002-06-04 | 2007-01-30 | Ford Global Technologies, Llc | Method and system for rapid heating of an emission control device |
| US7032572B2 (en) * | 2002-06-04 | 2006-04-25 | Ford Global Technologies, Llc | Method for controlling an engine to obtain rapid catalyst heating |
| US6736121B2 (en) | 2002-06-04 | 2004-05-18 | Ford Global Technologies, Llc | Method for air-fuel ratio sensor diagnosis |
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| US6735938B2 (en) | 2002-06-04 | 2004-05-18 | Ford Global Technologies, Llc | Method to control transitions between modes of operation of an engine |
| US6725830B2 (en) | 2002-06-04 | 2004-04-27 | Ford Global Technologies, Llc | Method for split ignition timing for idle speed control of an engine |
| US6715462B2 (en) | 2002-06-04 | 2004-04-06 | Ford Global Technologies, Llc | Method to control fuel vapor purging |
| US6925982B2 (en) | 2002-06-04 | 2005-08-09 | Ford Global Technologies, Llc | Overall scheduling of a lean burn engine system |
| US6804951B2 (en) | 2002-11-06 | 2004-10-19 | Ford Global Technologies, Llc | On-board diagnostic catalyst monitoring system |
| FR2864145B1 (fr) * | 2003-12-19 | 2007-09-07 | Renault Sas | Procede de detection de la presence d'un systeme de depollution par mesure de temperature |
| US7536851B2 (en) * | 2005-03-10 | 2009-05-26 | Gm Global Technology Operations, Inc. | Catalyst condition monitor based on differential area under the oxygen sensors curve algorithm |
| US9435246B2 (en) | 2013-11-19 | 2016-09-06 | General Electric Company | On-board catalyst health monitoring and control system adaptation in internal combustion engines |
| US9587548B2 (en) * | 2014-09-02 | 2017-03-07 | Arctic Cat, Inc. | Oxygen sensor cooling duct |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3086353A (en) * | 1960-03-03 | 1963-04-23 | Thompson Ramo Wooldridge Inc | Afterburner systems |
| US3211534A (en) * | 1963-12-19 | 1965-10-12 | Trw Inc | Exhaust control apparatus |
| US3441381A (en) * | 1965-06-22 | 1969-04-29 | Engelhard Ind Inc | Apparatus for purifying exhaust gases of an internal combustion engine |
-
1974
- 1974-09-17 DE DE19742444334 patent/DE2444334A1/de not_active Withdrawn
-
1975
- 1975-08-13 US US05/604,320 patent/US3969932A/en not_active Expired - Lifetime
- 1975-09-16 JP JP50112044A patent/JPS5155818A/ja active Pending
- 1975-09-16 SE SE7510333A patent/SE417998B/xx unknown
- 1975-09-16 GB GB3795775A patent/GB1469390A/en not_active Expired
- 1975-09-17 FR FR7528522A patent/FR2285517A1/fr active Granted
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3339429A1 (de) * | 1983-10-29 | 1985-05-09 | Volkswagenwerk Ag, 3180 Wolfsburg | Einrichtung zur reduzierung von abgas-schadstoffen |
| DE3619897A1 (de) * | 1986-06-13 | 1987-12-17 | Bayerische Motoren Werke Ag | Schutz-schaltung fuer katalytische abgasnachbehandlungsvorrichtungen |
| DE3627437A1 (de) * | 1986-08-13 | 1988-02-18 | Bayerische Motoren Werke Ag | Schutzvorrichtung fuer einen abgas-katalysator einer brennkraftmaschine mit einer lambda-regeleinrichtung |
| DE3627437C2 (de) * | 1986-08-13 | 1994-05-26 | Bayerische Motoren Werke Ag | Schutzvorrichtung für einen Abgas-Katalysator einer Brennkraftmaschine mit einer Lambda-Regeleinrichtung |
| DE3830515A1 (de) * | 1988-09-08 | 1990-03-22 | Bayerische Motoren Werke Ag | Verfahren zur ueberpruefung der funktion des abgaskatalysators einer brennkraftmaschine |
| FR2640383A1 (fr) * | 1988-12-10 | 1990-06-15 | Daimler Benz Ag | Procede et dispositif pour determiner l'etat de catalyseurs dans des moteurs a combustion interne |
| US5428956A (en) * | 1990-08-28 | 1995-07-04 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Method for monitoring the catalytic activity of a catalytic converter in the exhaust gas system of an internal combustion engine |
| DE4027207A1 (de) * | 1990-08-28 | 1992-03-05 | Emitec Emissionstechnologie | Ueberwachung der katalytischen aktivitaet eines katalysators im abgassystem einer brennkraftmaschine |
| US5339628A (en) * | 1990-08-28 | 1994-08-23 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Method for monitoring the catalytic activity of a catalytic converter in the exhaust gas system of an internal combustion engine |
| DE4112477C2 (de) * | 1991-04-17 | 2001-03-08 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Simulieren des zeitlichen Verhaltens des Lambda-Wertes am Auslaß eines Abgaskatalysators und zur Betimmung des Alterungszustandes des Katalysators |
| DE4112479C2 (de) * | 1991-04-17 | 2002-06-06 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Bestimmen des Alterungszustandes eines Katalysators |
| DE4112480C2 (de) * | 1991-04-17 | 2001-12-06 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Bestimmen des Alterungszustandes eines Katalysators |
| JP3325915B2 (ja) | 1991-04-17 | 2002-09-17 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 排ガス触媒の出口側におけるラムダ値の時間的特性をシミュレーションする方法及び装置、並びに触媒の老化状態を判定する方法及び装置 |
| FR2675538A1 (fr) * | 1991-04-17 | 1992-10-23 | Bosch Gmbh Robert | Procede et dispositif pour determiner l'etat de vieillissement d'un catalyseur. |
| DE4125154C2 (de) * | 1991-07-30 | 2001-02-22 | Bosch Gmbh Robert | Verfahren und Einrichtung zur Lambdasonden-Überwachung bei einer Brennkraftmaschine |
| DE4128823C2 (de) * | 1991-08-30 | 2000-06-29 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Bestimmen des Speichervermögens eines Katalysators |
| DE4331153C2 (de) * | 1992-09-26 | 2001-02-01 | Volkswagen Ag | Verfahren zur Gewinnung von fehlerspezifischen Beurteilungskriterien eines Abgaskatalysators und einer Regel-Lambdasonde |
| DE4320881A1 (de) * | 1993-02-26 | 1994-09-01 | Roth Forschung Gmbh & Co Autom | Kombination von Lambda-Sonden |
| DE19801629B4 (de) * | 1998-01-17 | 2012-08-23 | Robert Bosch Gmbh | Katalysatordiagnoseverfahren und Vorrichtung |
| FR2773844A1 (fr) | 1998-01-17 | 1999-07-23 | Bosch Gmbh Robert | Procede et dispositif pour le diagnostic d'un catalyseur de stockage de nox applicable a des moteurs a combustion |
| US6401453B1 (en) | 1998-03-17 | 2002-06-11 | Siemens Aktiengesellschaft | Method and device for monitoring the functional ability of a catalyst of an internal combustion engine |
| FR2783872A1 (fr) * | 1998-09-25 | 2000-03-31 | Bosch Gmbh Robert | Diagnostic d'un catalyseur a trois voies ou d'un catalyseur a accumulation de nox |
| DE19850338C2 (de) * | 1998-11-02 | 2001-11-22 | Heraeus Electro Nite Int | Verfahren und Einrichtung zur Kontrolle und Beobachtung der Alterung eines Katalysators im Abgas von Verbrennungskraftmaschinen und des Schadstoffausstoßes |
| US6450018B1 (en) | 1998-11-02 | 2002-09-17 | Herneus Electro-Nite International N.V. | Process and device for monitoring and observation of aging of a catalytic converter in exhaust gas of internal combustion engines and of emission of hazardous materials |
| WO2002008594A1 (de) | 2000-07-21 | 2002-01-31 | Robert Bosch Gmbh | Verfahren zum betreiben eines katalysators |
| US6862880B2 (en) | 2000-07-21 | 2005-03-08 | Robert Bosch Gmbh | Method for operating a catalyst |
| KR100783854B1 (ko) * | 2000-07-21 | 2007-12-10 | 로베르트 보쉬 게엠베하 | 촉매 컨버터의 작동 방법 |
| WO2002008584A1 (de) | 2000-07-26 | 2002-01-31 | Robert Bosch Gmbh | VERFAHREN ZUM BETREIBEN EINES STICKOXID (NOx)-SPEICHERKATALYSATORS |
| DE10305452B4 (de) * | 2002-12-30 | 2013-04-18 | Volkswagen Ag | Verfahren zur Diagnose eines Katalysators im Abgasstrom einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens |
| DE10309421B4 (de) * | 2002-12-30 | 2013-04-18 | Volkswagen Ag | Verfahren zur Diagnose eines Katalysators in Abgasstrom einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens |
| DE102004050629B4 (de) * | 2004-10-18 | 2008-05-15 | Audi Ag | Verfahren zur Bestimmung der Sauerstoffspeicherkapazität eines Oxidationskatalysators |
| DE102011010011A1 (de) | 2011-02-02 | 2012-08-02 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zur Erkennung von Fehlfunktionen des Abgasnachbehandlungssystems einer Verbrennungskraftmaschine |
| DE102011010011B4 (de) * | 2011-02-02 | 2013-02-28 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zur Erkennung von Fehlfunktionen des Abgasnachbehandlungssystems einer Verbrennungskraftmaschine |
Also Published As
| Publication number | Publication date |
|---|---|
| US3969932A (en) | 1976-07-20 |
| JPS5155818A (enExample) | 1976-05-17 |
| SE417998B (sv) | 1981-04-27 |
| SE7510333L (sv) | 1976-03-18 |
| GB1469390A (en) | 1977-04-06 |
| FR2285517B3 (enExample) | 1978-05-05 |
| FR2285517A1 (fr) | 1976-04-16 |
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