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ES2068751A1 - " procedimiento y dispositivo para reconocer el estado de un catalizador" - Google Patents

" procedimiento y dispositivo para reconocer el estado de un catalizador"

Info

Publication number
ES2068751A1
ES2068751A1 ES09300678A ES9300678A ES2068751A1 ES 2068751 A1 ES2068751 A1 ES 2068751A1 ES 09300678 A ES09300678 A ES 09300678A ES 9300678 A ES9300678 A ES 9300678A ES 2068751 A1 ES2068751 A1 ES 2068751A1
Authority
ES
Spain
Prior art keywords
catalyst
detector
composite section
exhaust
comparing
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.)
Granted
Application number
ES09300678A
Other languages
English (en)
Other versions
ES2068751B1 (es
Inventor
Frank Blischke
Eberhard Schnaibel
Erich Schneider
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of ES2068751A1 publication Critical patent/ES2068751A1/es
Application granted granted Critical
Publication of ES2068751B1 publication Critical patent/ES2068751B1/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0422—Methods of control or diagnosing measuring the elapsed time
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Testing Of Engines (AREA)

Abstract

PROCEDIMIENTO Y DISPOSITIVO PARA RECONOCER EL ESTADO DE UN CATALIZADOR, EN EL QUE SE MODULA OBJETIVAMENTE EL VALOR LAMBDA DE LA MEZCLA, DE MANERA QUE SE AGRANDAN SUCESIVAMENTE LAS CANTIDADES DE EXCESO DE OXIGENO Y DE ESCASEZ DE OXIGENO QUE SE SUCEDEN PERIODICAMENTE. EL INSTANTE EN EL QUE EL EFECTO COMPENSADOR, VINCULADO CON LA CAPACIDAD DE ACUMULACION DE OXIGENO DEL CATALIZADOR, SOBRE LAS FLUCTUACIONES DE CONCENTRACION DE OXIGENO EN EL GAS DE ESCAPE NO ES YA SUFICIENTE PARA LA COMPENSACION DE DICHAS CANTIDADES AGRANDADAS, SE DETECTA MEDIANTE LA REACCION DE SALTO DE UNA SONDA LAMBDA DISPUESTA DETRAS DEL CATALIZADOR. EL INTERVALO DE TIEMPO ENTRE ESTE INSTANTE Y EL ARRANQUE DEL AUMENTO SE UTILIZA COMO MEDIDA PARA LA CAPACIDAD DE CONVERSION DEL CATALIZADOR.
ES09300678A 1992-04-03 1993-04-01 " procedimiento y dispositivo para reconocer el estado de un catalizador" Expired - Lifetime ES2068751B1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4211116A DE4211116A1 (de) 1992-04-03 1992-04-03 Verfahren und Vorrichtung zur Katalysatorzustandserkennung

Publications (2)

Publication Number Publication Date
ES2068751A1 true ES2068751A1 (es) 1995-04-16
ES2068751B1 ES2068751B1 (es) 1995-11-16

Family

ID=6455919

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09300678A Expired - Lifetime ES2068751B1 (es) 1992-04-03 1993-04-01 " procedimiento y dispositivo para reconocer el estado de un catalizador"

Country Status (4)

Country Link
JP (1) JPH0626330A (es)
DE (1) DE4211116A1 (es)
ES (1) ES2068751B1 (es)
IT (1) IT1263842B (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2998575B2 (ja) * 1994-10-20 2000-01-11 日産自動車株式会社 内燃機関の触媒劣化診断装置
DE4441432A1 (de) 1994-11-22 1996-05-23 Roth Technik Gmbh Anordnung zur Überwachung der Funktionsfähigkeit von Katalysatoren und/oder Lambda-Sonden
US5845489A (en) * 1995-11-08 1998-12-08 Denso Corporation Abnormality detector for air-fuel ratio control system
DE19630940C2 (de) * 1996-07-31 1999-03-04 Siemens Ag Verfahren zur Überprüfung des Katalysatorwirkungsgrades
DE19801815A1 (de) * 1998-01-19 1999-07-22 Volkswagen Ag Mager-Regeneration von NOx-Speichern
DE19816175A1 (de) * 1998-04-14 1999-10-21 Degussa Verfahren zur Überprüfung der Funktionstüchtigkeit eines Stickoxid-Speicherkatalysators
US6244047B1 (en) * 1998-10-02 2001-06-12 Ford Global Technologies, Inc. Method of purging lean NOx trap
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
DE19913901C2 (de) * 1999-03-26 2001-10-18 Siemens Ag Verfahren zum Überprüfen der Funktionsfähigkeit eines Katalysators
DE10017931A1 (de) * 2000-04-11 2001-12-06 Siemens Ag Verfahren zur Diagnose einer Abgasreinigungsanlage einer lambdageregelten Brennkraftmaschine
GB2399178B (en) * 2003-03-06 2006-06-07 Ford Global Tech Llc Method of accurately estimating air to fuel ratio
DE102005004670B4 (de) * 2005-02-02 2007-05-24 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Verfahren zur Diagnose des Alterungsgrades eines im Abgaskanal einer Brennkraftmaschine angeordneten Katalysators
DE102005059894B4 (de) 2005-12-15 2019-07-25 Robert Bosch Gmbh Verfahren zur Messung der Sauerstoffspeicherfähigkeit einer Abgasreinigungsanlage
JP4915220B2 (ja) 2006-11-24 2012-04-11 富士通株式会社 携帯端末装置
JP4221025B2 (ja) 2006-12-25 2009-02-12 三菱電機株式会社 内燃機関の空燃比制御装置
JP4221026B2 (ja) 2006-12-25 2009-02-12 三菱電機株式会社 内燃機関の空燃比制御装置
DE102009010021A1 (de) 2009-02-21 2010-09-02 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Simulationsmodell zur On-Bord-Diagnose des Alterungsgrades eines im Abgaskanal einer Brennkraftmaschine angeordneten Katalysators
DE102010031654B4 (de) 2010-07-22 2023-10-05 Robert Bosch Gmbh Verfahren zum Betreiben einer Brennkraftmaschine
JP5951068B1 (ja) * 2015-04-14 2016-07-13 三菱電機株式会社 内燃機関の空燃比制御装置および空燃比制御方法
DE102021102456B3 (de) 2021-02-03 2022-05-19 Audi Aktiengesellschaft Verfahren zum Betreiben einer Antriebseinrichtung sowie entsprechende Antriebseinrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007589A (en) * 1973-01-31 1977-02-15 Robert Bosch G.M.B.H. Internal combustion exhaust catalytic reactor monitoring system
US4622809A (en) * 1984-04-12 1986-11-18 Daimler-Benz Aktiengesellschaft Method and apparatus for monitoring and adjusting λ-probe-controlled catalytic exhaust gas emission control systems of internal combustion engines
EP0444783A1 (en) * 1990-02-13 1991-09-04 Lucas Industries Public Limited Company Exhaust gas catalyst monitoring
US5099646A (en) * 1990-07-16 1992-03-31 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback control system having a single air-fuel ratio sensor downstream of a three-way catalyst converter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007589A (en) * 1973-01-31 1977-02-15 Robert Bosch G.M.B.H. Internal combustion exhaust catalytic reactor monitoring system
US4622809A (en) * 1984-04-12 1986-11-18 Daimler-Benz Aktiengesellschaft Method and apparatus for monitoring and adjusting λ-probe-controlled catalytic exhaust gas emission control systems of internal combustion engines
EP0444783A1 (en) * 1990-02-13 1991-09-04 Lucas Industries Public Limited Company Exhaust gas catalyst monitoring
US5099646A (en) * 1990-07-16 1992-03-31 Toyota Jidosha Kabushiki Kaisha Air-fuel ratio feedback control system having a single air-fuel ratio sensor downstream of a three-way catalyst converter

Also Published As

Publication number Publication date
IT1263842B (it) 1996-09-04
JPH0626330A (ja) 1994-02-01
ITMI930608A0 (it) 1993-03-30
ES2068751B1 (es) 1995-11-16
ITMI930608A1 (it) 1994-09-30
DE4211116A1 (de) 1993-10-07

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Legal Events

Date Code Title Description
FA2A Application withdrawn

Effective date: 19970218