FR2675538B1 - METHOD AND DEVICE FOR DETERMINING THE AGING STATE OF A CATALYST. - Google Patents

METHOD AND DEVICE FOR DETERMINING THE AGING STATE OF A CATALYST.

Info

Publication number
FR2675538B1
FR2675538B1 FR929200248A FR9200248A FR2675538B1 FR 2675538 B1 FR2675538 B1 FR 2675538B1 FR 929200248 A FR929200248 A FR 929200248A FR 9200248 A FR9200248 A FR 9200248A FR 2675538 B1 FR2675538 B1 FR 2675538B1
Authority
FR
France
Prior art keywords
catalyst
determining
aging state
aging
state
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
FR929200248A
Other languages
French (fr)
Other versions
FR2675538A1 (en
Inventor
Heppner Bernd
Richter Wolfgang
Stuber Axel
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 FR2675538A1 publication Critical patent/FR2675538A1/en
Application granted granted Critical
Publication of FR2675538B1 publication Critical patent/FR2675538B1/en
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
    • 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
    • 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)
  • Testing Of Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
FR929200248A 1991-04-17 1992-01-13 METHOD AND DEVICE FOR DETERMINING THE AGING STATE OF A CATALYST. Expired - Fee Related FR2675538B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4112480A DE4112480C2 (en) 1991-04-17 1991-04-17 Method and device for determining the aging condition of a catalyst

Publications (2)

Publication Number Publication Date
FR2675538A1 FR2675538A1 (en) 1992-10-23
FR2675538B1 true FR2675538B1 (en) 1993-08-20

Family

ID=6429748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR929200248A Expired - Fee Related FR2675538B1 (en) 1991-04-17 1992-01-13 METHOD AND DEVICE FOR DETERMINING THE AGING STATE OF A CATALYST.

Country Status (3)

Country Link
JP (1) JP3313134B2 (en)
DE (1) DE4112480C2 (en)
FR (1) FR2675538B1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19549649B4 (en) * 1994-05-10 2004-06-17 Mitsubishi Jidosha Kogyo K.K. Control for catalyst in exhaust system of IC engine
DE19545706C2 (en) * 1995-12-07 1999-07-15 Mannesmann Vdo Ag Method for calibrating a lambda probe in an internal combustion engine
JPH09236569A (en) * 1996-03-01 1997-09-09 Hitachi Ltd Function diagnosing device of exhaust gas purifying apparatus of internal combustion engine
DE19705478A1 (en) * 1997-02-13 1998-08-20 Opel Adam Ag Process for protecting a catalyst
DE19752965C2 (en) * 1997-11-28 2002-06-13 Siemens Ag Method for monitoring the exhaust gas purification system of a spark ignition internal combustion engine
JP3625403B2 (en) * 1999-10-26 2005-03-02 三菱電機株式会社 Catalyst deterioration detection device for internal combustion engine
DE19963938A1 (en) * 1999-12-31 2001-07-12 Bosch Gmbh Robert Method for operating a three-way catalytic converter of an internal combustion engine
US6912842B2 (en) * 2001-06-19 2005-07-05 Ford Global Technologies, Inc. Oxygen storage capacity estimation
DE102007007502A1 (en) 2007-02-15 2008-08-21 Robert Bosch Gmbh Single-or multi-stage exhaust gas purification system diagnosing method for motor vehicle, involves comparing exhaust gas dispensing determined from crude waste gas amount and conversion ability, with preset diagnostic threshold
CN101975664B (en) * 2010-09-27 2012-02-29 重庆建设摩托车股份有限公司 Motorcycle idle speed emission equivalent measurement method
CN102692324A (en) * 2012-06-27 2012-09-26 镇江跃进机械厂有限公司 Motorbike idle speed discharging equivalent measurement method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444334A1 (en) * 1974-09-17 1976-03-25 Bosch Gmbh Robert METHOD AND EQUIPMENT FOR MONITORING THE ACTIVITY OF CATALYTIC REACTORS
CH668620A5 (en) * 1984-04-12 1989-01-13 Daimler Benz Ag METHOD FOR CHECKING AND ADJUSTING CATALYTIC EXHAUST GAS PURIFICATION PLANTS OF COMBUSTION ENGINES.
DE3524592C1 (en) * 1985-07-10 1986-09-25 Pierburg Gmbh & Co Kg, 4040 Neuss Process for checking the functionality of catalytic reactors and device for carrying out the process
DE3736259C2 (en) * 1986-11-07 1998-01-29 Volkswagen Ag Device for determining the degree of conversion of a catalytic converter
JP2526640B2 (en) * 1988-07-20 1996-08-21 トヨタ自動車株式会社 Catalyst deterioration determination device for internal combustion engine
DE3830515A1 (en) * 1988-09-08 1990-03-22 Bayerische Motoren Werke Ag Method for checking the functioning of the exhaust catalyser of an internal combustion engine

Also Published As

Publication number Publication date
DE4112480A1 (en) 1992-10-22
JPH05179933A (en) 1993-07-20
JP3313134B2 (en) 2002-08-12
FR2675538A1 (en) 1992-10-23
DE4112480C2 (en) 2001-12-06

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070930