[go: up one dir, main page]

DE69621965D1 - Diagnosevorrichtung für ein Abgasreinigungssystem einer Brennkraftmaschine - Google Patents

Diagnosevorrichtung für ein Abgasreinigungssystem einer Brennkraftmaschine

Info

Publication number
DE69621965D1
DE69621965D1 DE69621965T DE69621965T DE69621965D1 DE 69621965 D1 DE69621965 D1 DE 69621965D1 DE 69621965 T DE69621965 T DE 69621965T DE 69621965 T DE69621965 T DE 69621965T DE 69621965 D1 DE69621965 D1 DE 69621965D1
Authority
DE
Germany
Prior art keywords
exhaust gas
combustion engine
internal combustion
gas purification
purification system
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 - Fee Related
Application number
DE69621965T
Other languages
English (en)
Other versions
DE69621965T2 (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 Astemo 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.)
Filing date
Publication date
Application filed by Hitachi Ltd, Hitachi Car Engineering Co Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE69621965D1 publication Critical patent/DE69621965D1/de
Publication of DE69621965T2 publication Critical patent/DE69621965T2/de
Anticipated expiration legal-status Critical
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
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 true DE69621965D1 (de) 2002-08-01
DE69621965T2 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
RU2138654C1 (ru) * 1995-09-29 1999-09-27 Сименс Акциенгезелльшафт Способ и устройство для превращения вредного вещества в отработавшем газе на катализаторе
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

Also Published As

Publication number Publication date
KR100405091B1 (ko) 2004-03-18
DE69621965T2 (de) 2003-02-06
JP3151368B2 (ja) 2001-04-03
EP0727568B1 (de) 2002-06-26
US5740676A (en) 1998-04-21
KR960031773A (ko) 1996-09-17
EP0727568A1 (de) 1996-08-21
JPH08218854A (ja) 1996-08-27

Similar Documents

Publication Publication Date Title
DE69621965D1 (de) Diagnosevorrichtung für ein Abgasreinigungssystem einer Brennkraftmaschine
DE69628220D1 (de) Abgasreinigungsvorrichtung für Brennkraftmaschine
DE69611944D1 (de) Abgasreinigungsvorrichtung für Brennkraftmaschine
DE69602222D1 (de) Abgasreiningungsvorrichtung für eine Brennkraftmaschine
DE69502663D1 (de) Abgasreinigungsvorrichtung für Brennkraftmaschinen
DE69621793D1 (de) Abgasrezirkulationssystem für brennkraftmaschine
DE69515803D1 (de) Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69515404D1 (de) Abgasreinigungseinrichtung für eine Brennkraftmaschine
DE69218777D1 (de) Abgasreinigungsanlage für brennkraftmaschinen
DE69713832D1 (de) Abgasreinigungsvorrichtung für Brennkraftmaschine
DE69814261D1 (de) Abgasreinigungssystem einer Brennkraftmaschine
DE69704468D1 (de) Abgasreinigungsvorrichtung einer Brennkraftmaschine
DE69420488D1 (de) Abgasreinigungsgerät für eine brennkraftmaschine
DE69807370D1 (de) Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69804371D1 (de) Abgasreinigungseinrichtung für eine Brennkraftmaschine
DE69802766D1 (de) Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69836186D1 (de) Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69815611D1 (de) Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69817649D1 (de) Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69816438D1 (de) Abgasreinigungsvorrichtung für eine verbrennungskraftmaschine
DE69625823D1 (de) Abgaskontrollvorrichtung für brennkraftmaschine
DE69300512D1 (de) Abgasreinigungsapparat für Brennkraftmaschinen.
DE69707057D1 (de) Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE69808544D1 (de) Vorrichtung zur Abgasreinigung für eine Brennkraftmaschine
DE69520567D1 (de) Abgasreinigungsverfahren für eine brennkraftmaschine

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee