DE69621965T2 - Diagnosevorrichtung für ein Abgasreinigungssystem einer Brennkraftmaschine - Google Patents

Diagnosevorrichtung für ein Abgasreinigungssystem einer Brennkraftmaschine

Info

Publication number: DE69621965T2
Authority: DE; Germany
Prior art keywords: exhaust gas; combustion engine; internal combustion; gas purification; purification system
Prior art date: 1995-02-17
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 - Fee Related

Application number

DE69621965T

Other languages

English (en)

Other versions

DE69621965D1 (de

Inventor

Rogelio B Agustin

Akihito Numata

Eisaku Fukuchi

Yutaka Takaku

Toshio Ishii

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.)

Hitachi Ltd

Hitachi Automotive Systems Engineering Co Ltd

Original Assignee

Hitachi Ltd

Hitachi Car Engineering Co Ltd

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.)

1995-02-17

Filing date

1996-02-13

Publication date

2003-02-06

1996-02-13 Application filed by Hitachi Ltd, Hitachi Car Engineering Co Ltd filed Critical Hitachi Ltd

2002-08-01 Application granted granted Critical

2002-08-01 Publication of DE69621965D1 publication Critical patent/DE69621965D1/de

2003-02-06 Publication of DE69621965T2 publication Critical patent/DE69621965T2/de

2016-02-14 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
- 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, e.g. for catalytic activity
- F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration downstream of the 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- 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

DE69621965T 1995-02-17 1996-02-13 Diagnosevorrichtung für ein Abgasreinigungssystem einer Brennkraftmaschine Expired - Fee Related DE69621965T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP02973795A JP3151368B2 (ja)	1995-02-17	1995-02-17	内燃機関用排気ガス浄化装置の診断装置

Publications (2)

Publication Number	Publication Date
DE69621965D1 DE69621965D1 (de)	2002-08-01
DE69621965T2 true DE69621965T2 (de)	2003-02-06

Family

ID=12284431

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69621965T Expired - Fee Related DE69621965T2 (de)	1995-02-17	1996-02-13	Diagnosevorrichtung für ein Abgasreinigungssystem einer Brennkraftmaschine

Country Status (5)

Country	Link
US (1)	US5740676A (de)
EP (1)	EP0727568B1 (de)
JP (1)	JP3151368B2 (de)
KR (1)	KR100405091B1 (de)
DE (1)	DE69621965T2 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR19990063752A (ko) *	1995-09-29	1999-07-26	피터 토마스	촉매 변환기에서 배기 가스중의 유해물질을 변환시키기 위한방법 및 장치
JP3267188B2 (ja) *	1997-05-12	2002-03-18	トヨタ自動車株式会社	内燃機関の触媒劣化判定装置
JP3709655B2 (ja) *	1997-06-09	2005-10-26	日産自動車株式会社	内燃機関の排気浄化装置
US5826426A (en) *	1997-07-30	1998-10-27	Chrysler Corporation	Oxygen sensor linearization system and method
JP3430879B2 (ja) *	1997-09-19	2003-07-28	トヨタ自動車株式会社	内燃機関の排気浄化装置
JP3500941B2 (ja) *	1997-12-26	2004-02-23	日産自動車株式会社	排気浄化装置の診断装置
DE19830709C2 (de) *	1998-07-09	2002-10-31	Daimler Chrysler Ag	Meßwandler zur Detektion von Kohlenwasserstoffen in Gasen
US6336320B1 (en) *	1998-07-10	2002-01-08	Toyota Jidosha Kabushiki Kaisha	Exhaust gas purification device for an internal combustion engine
US6289672B1 (en) *	1998-07-21	2001-09-18	Toyota Jidosha Kabushiki Kaisha	Exhaust gas purification device for an internal combustion engine
DE19852294A1 (de) *	1998-11-12	2000-05-18	Bayerische Motoren Werke Ag	Abgasanlage einer Mehrzylinder-Brennkraftmaschine
JP3592579B2 (ja)	1999-05-17	2004-11-24	本田技研工業株式会社	内燃機関の排気ガス浄化装置
US6253541B1 (en) *	1999-08-10	2001-07-03	Daimlerchrysler Corporation	Triple oxygen sensor arrangement
US6256981B1 (en) *	1999-08-10	2001-07-10	Chrysler Corporation	Fuel control system with multiple oxygen sensors
JP3684934B2 (ja) *	1999-08-30	2005-08-17	三菱自動車工業株式会社	内燃機関の排気浄化装置
EP1143131B1 (de) *	2000-04-07	2007-02-14	Volkswagen Aktiengesellschaft	Mehrflutige Abgasanlage und Verfahren zur Regelung eines Luft-Kraftstoff-Verhältnisses eines Mehrzylinderverbrennungsmotors
JP3759578B2 (ja) *	2000-09-01	2006-03-29	株式会社デンソー	排出ガス浄化用触媒の劣化検出装置
US6539707B2 (en) *	2000-10-03	2003-04-01	Denso Corporation	Exhaust emission control system for internal combustion engine
JP4737482B2 (ja) *	2001-03-28	2011-08-03	本田技研工業株式会社	内燃機関の触媒劣化検出装置
JP3846375B2 (ja) *	2002-07-10	2006-11-15	トヨタ自動車株式会社	触媒劣化判定方法
US7000379B2 (en) *	2003-06-04	2006-02-21	Ford Global Technologies, Llc	Fuel/air ratio feedback control with catalyst gain estimation for an internal combustion engine
US6904751B2 (en) *	2003-06-04	2005-06-14	Ford Global Technologies, Llc	Engine control and catalyst monitoring with downstream exhaust gas sensors
JP4314636B2 (ja) *	2004-09-17	2009-08-19	株式会社デンソー	内燃機関の空燃比制御装置
EP1724458A1 (de) *	2005-05-19	2006-11-22	Delphi Technologies, Inc.	Verfahren und Vorrichtung zur Diagnose eines Messwertes
JP4213148B2 (ja) *	2005-08-09	2009-01-21	三菱電機株式会社	内燃機関の制御装置
JP4453836B2 (ja) *	2005-11-02	2010-04-21	日立オートモティブシステムズ株式会社	エンジンの触媒劣化診断装置及びその方法および排気ガス浄化用の触媒装置
JP4742837B2 (ja) *	2005-12-07	2011-08-10	日産自動車株式会社	内燃機関の触媒劣化診断装置および診断方法
JP4915256B2 (ja) *	2007-03-06	2012-04-11	トヨタ自動車株式会社	触媒の劣化診断装置及び劣化診断方法
JP4867909B2 (ja) *	2007-12-19	2012-02-01	トヨタ自動車株式会社	ＮＯｘ触媒の劣化診断装置
US9068491B2 (en) *	2012-11-27	2015-06-30	Ford Global Technologies, Llc	SCR catalyst diagnostics
US9664094B2 (en) *	2013-09-26	2017-05-30	General Electric Company	Systems and methods for monitoring catalyst deactivation and controlling an air/fuel ratio
CN112879133B (zh) *	2019-11-29	2021-11-19	北京车和家信息技术有限公司	一种催化器诊断方法、装置及车辆

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0726578B2 (ja) *	1986-10-13	1995-03-29	トヨタ自動車株式会社	内燃機関の空燃比制御装置
JP3076417B2 (ja) *	1991-07-23	2000-08-14	マツダ株式会社	エンジンの排気浄化装置
JP2936898B2 (ja) *	1992-06-30	1999-08-23	トヨタ自動車株式会社	内燃機関の空燃比制御装置
JP3485194B2 (ja) *	1992-10-01	2004-01-13	富士重工業株式会社	エンジンの排気処理装置
JPH06159044A (ja) *	1992-11-27	1994-06-07	Hitachi Ltd	内燃機関の排気浄化システム
US5509267A (en) *	1994-11-14	1996-04-23	General Motors Corporation	Automotive vehicle catalyst diagnostic

1995
- 1995-02-17 JP JP02973795A patent/JP3151368B2/ja not_active Expired - Fee Related
1996
- 1996-02-13 DE DE69621965T patent/DE69621965T2/de not_active Expired - Fee Related
- 1996-02-13 EP EP96102087A patent/EP0727568B1/de not_active Expired - Lifetime
- 1996-02-16 KR KR1019960003834A patent/KR100405091B1/ko not_active IP Right Cessation
- 1996-02-20 US US08/603,345 patent/US5740676A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0727568A1 (de)	1996-08-21
JP3151368B2 (ja)	2001-04-03
KR960031773A (ko)	1996-09-17
KR100405091B1 (ko)	2004-03-18
DE69621965D1 (de)	2002-08-01
EP0727568B1 (de)	2002-06-26
US5740676A (en)	1998-04-21
JPH08218854A (ja)	1996-08-27

Legal Events

Date	Code	Title	Description
2003-07-24	8364	No opposition during term of opposition
2010-12-16	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE69621965T2 (de)	2003-02-06	Diagnosevorrichtung für ein Abgasreinigungssystem einer Brennkraftmaschine
DE69628220D1 (de)	2003-06-26	Abgasreinigungsvorrichtung für Brennkraftmaschine
DE69611944T2 (de)	2001-08-02	Abgasreinigungsvorrichtung für Brennkraftmaschine
DE69602222T2 (de)	1999-12-16	Abgasreiningungsvorrichtung für eine Brennkraftmaschine
DE69502663D1 (de)	1998-07-02	Abgasreinigungsvorrichtung für Brennkraftmaschinen
DE69621793D1 (de)	2002-07-18	Abgasrezirkulationssystem für brennkraftmaschine
DE69515803T2 (de)	2000-10-12	Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69515404T2 (de)	2000-11-09	Abgasreinigungseinrichtung für eine Brennkraftmaschine
DE69218777D1 (de)	1997-05-07	Abgasreinigungsanlage für brennkraftmaschinen
DE69713832D1 (de)	2002-08-14	Abgasreinigungsvorrichtung für Brennkraftmaschine
DE69814261D1 (de)	2003-06-12	Abgasreinigungssystem einer Brennkraftmaschine
DE69704468D1 (de)	2001-05-10	Abgasreinigungsvorrichtung einer Brennkraftmaschine
DE69420488T2 (de)	2000-04-13	Abgasreinigungsgerät für eine brennkraftmaschine
DE69804371D1 (de)	2002-05-02	Abgasreinigungseinrichtung für eine Brennkraftmaschine
DE69802766D1 (de)	2002-01-17	Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69707057D1 (de)	2001-11-08	Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69516082T2 (de)	2000-08-24	Abgassystem für Verbrennungsmotor
DE69510144D1 (de)	1999-07-15	Abgasreinigungseinrichtung für eine Brennkraftmaschine
DE59302688D1 (de)	1996-06-27	Abgasanlage für Verbrennungsmotoren
DE59505089D1 (de)	1999-03-25	Abgasleitung für Brennkraftmaschine
DE29512732U1 (de)	1995-11-02	Schalldämpfer für die Abgasanlage eines Verbrennungsmotors
DE9401610U1 (de)	1994-04-07	Abgasanlage für Verbrennungsmotoren
DE59900660D1 (de)	2002-02-21	Anschlussvorrichtung für ein Abgasrohr einer Brennkraftmaschine
DE69623192D1 (de)	2002-10-02	Abgasrückführungssystem für eine Brennkraftmaschine
DE9312405U1 (de)	1993-10-21	Abgasanlage für Verbrennungsmotoren