GB2177513B - Process for testing the functional effectiveness of a catalytic reactor, and a device for operating the process - Google Patents

Process for testing the functional effectiveness of a catalytic reactor, and a device for operating the process

Info

Publication number
GB2177513B
GB2177513B GB8614359A GB8614359A GB2177513B GB 2177513 B GB2177513 B GB 2177513B GB 8614359 A GB8614359 A GB 8614359A GB 8614359 A GB8614359 A GB 8614359A GB 2177513 B GB2177513 B GB 2177513B
Authority
GB
United Kingdom
Prior art keywords
testing
operating
catalytic reactor
functional effectiveness
effectiveness
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
Application number
GB8614359A
Other versions
GB2177513A (en
GB8614359D0 (en
Inventor
Andreas Roth
Gerhard Lampe
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.)
Pierburg GmbH
Original Assignee
Pierburg 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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of GB8614359D0 publication Critical patent/GB8614359D0/en
Publication of GB2177513A publication Critical patent/GB2177513A/en
Application granted granted Critical
Publication of GB2177513B publication Critical patent/GB2177513B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F01N9/00—Electrical control of exhaust gas treating 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/10—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using catalysis
    • 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
    • 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
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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
GB8614359A 1985-07-10 1986-06-12 Process for testing the functional effectiveness of a catalytic reactor, and a device for operating the process Expired GB2177513B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3524592A DE3524592C1 (en) 1985-07-10 1985-07-10 Process for checking the functionality of catalytic reactors and device for carrying out the process

Publications (3)

Publication Number Publication Date
GB8614359D0 GB8614359D0 (en) 1986-07-16
GB2177513A GB2177513A (en) 1987-01-21
GB2177513B true GB2177513B (en) 1989-08-02

Family

ID=6275391

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8614359A Expired GB2177513B (en) 1985-07-10 1986-06-12 Process for testing the functional effectiveness of a catalytic reactor, and a device for operating the process

Country Status (3)

Country Link
DE (1) DE3524592C1 (en)
FR (1) FR2584818A1 (en)
GB (1) GB2177513B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3736259C2 (en) * 1986-11-07 1998-01-29 Volkswagen Ag Device for determining the degree of conversion of a catalytic converter
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
DE3841685A1 (en) * 1988-12-10 1990-06-13 Daimler Benz Ag METHOD FOR DETECTING THE CONDITION OF CATALYSTS
WO1991014855A1 (en) * 1990-03-19 1991-10-03 Emitec Gesellschaft Für Emissionstechnologie Mbh Process and device for monitoring the performance of a catalyst in an internal combustion engine
DE4009901A1 (en) * 1990-03-28 1991-10-02 Bosch Gmbh Robert METHOD AND DEVICE FOR MONITORING THE CONVERSION LEVEL OF A CATALYST IN THE EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE
JP2600987B2 (en) * 1990-07-09 1997-04-16 日産自動車株式会社 Diagnosis device for air-fuel ratio control device
DE4039429A1 (en) * 1990-12-11 1992-06-17 Abb Patent Gmbh METHOD AND DEVICE FOR CHECKING A CATALYST
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
DE4112480C2 (en) * 1991-04-17 2001-12-06 Bosch Gmbh Robert Method and device for determining the aging condition of a catalyst
FR2682993B1 (en) * 1991-10-28 1994-01-28 Siemens Automotive Sa METHOD FOR MONITORING THE EFFICIENCY OF A CATALYTIC EXHAUST TREATMENT POT OF AN INTERNAL COMBUSTION ENGINE.
JP3303981B2 (en) * 1991-12-20 2002-07-22 株式会社日立製作所 Diagnosis device for engine exhaust gas purification device
US5848528A (en) * 1997-08-13 1998-12-15 Siemens Automotive Corporation Optimization of closed-loop and post O2 fuel control by measuring catalyst oxygen storage capacity
DE19910336A1 (en) * 1999-03-09 2000-09-21 Porsche Ag Process for checking the function of catalysts in internal combustion engines
DE10040517A1 (en) * 2000-08-18 2002-02-28 Bayerische Motoren Werke Ag Method for mixture formation for an internal combustion engine with a catalyst in the exhaust system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2328459A1 (en) * 1973-01-31 1975-01-02 Bosch Gmbh Robert System for checking activity of catalytic reactors - signals bad functioning of such reactors and causes engine to run unstable
DE2444334A1 (en) * 1974-09-17 1976-03-25 Bosch Gmbh Robert METHOD AND EQUIPMENT FOR MONITORING THE ACTIVITY OF CATALYTIC REACTORS
JPS5537562A (en) * 1978-09-08 1980-03-15 Nippon Denso Co Ltd Air-fuel ratio control system

Also Published As

Publication number Publication date
GB2177513A (en) 1987-01-21
DE3524592C1 (en) 1986-09-25
FR2584818A1 (en) 1987-01-16
GB8614359D0 (en) 1986-07-16

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee