CH668620A5 - Verfahren zur ueberpruefung und justierung von katalytischen abgasreinigungsanlagen von verbrennungsmotoren. - Google Patents

Verfahren zur ueberpruefung und justierung von katalytischen abgasreinigungsanlagen von verbrennungsmotoren. Download PDF

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Publication number
CH668620A5
CH668620A5 CH1290/85A CH129085A CH668620A5 CH 668620 A5 CH668620 A5 CH 668620A5 CH 1290/85 A CH1290/85 A CH 1290/85A CH 129085 A CH129085 A CH 129085A CH 668620 A5 CH668620 A5 CH 668620A5
Authority
CH
Switzerland
Prior art keywords
probe
exhaust gas
control
fuel
signal
Prior art date
Application number
CH1290/85A
Other languages
German (de)
English (en)
Inventor
Joerg Dr-Ing Abthoff
Hans-Dieter Dipl-Ing Schuster
Gottfried Dipl-Ing Wollenhaupt
Gunter Loose
Michael-Rainer Busch
Original Assignee
Daimler Benz Ag
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 Daimler Benz Ag filed Critical Daimler Benz Ag
Publication of CH668620A5 publication Critical patent/CH668620A5/de

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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
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1482—Integrator, i.e. variable slope
    • 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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
CH1290/85A 1984-04-12 1985-03-22 Verfahren zur ueberpruefung und justierung von katalytischen abgasreinigungsanlagen von verbrennungsmotoren. CH668620A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3413760 1984-04-12

Publications (1)

Publication Number Publication Date
CH668620A5 true CH668620A5 (de) 1989-01-13

Family

ID=6233352

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1290/85A CH668620A5 (de) 1984-04-12 1985-03-22 Verfahren zur ueberpruefung und justierung von katalytischen abgasreinigungsanlagen von verbrennungsmotoren.

Country Status (4)

Country Link
US (1) US4622809A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS60231155A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) AT399398B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH668620A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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DE4112478C2 (de) * 1991-04-17 2001-03-08 Bosch Gmbh Robert Verfahren und Vorrichtung zum Beurteilen des Alterungszustandes eines Katalysators
DE102004002291B4 (de) * 2004-01-16 2010-01-07 Audi Ag Verfahren zum Betreiben einer Brennkraftmaschine eines Fahrzeuges, insbesondere eines Kraftfahrzeuges

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DE3841685A1 (de) * 1988-12-10 1990-06-13 Daimler Benz Ag Verfahren zur erkennung des zustandes von katalysatoren
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JP2503829B2 (ja) * 1991-04-23 1996-06-05 トヨタ自動車株式会社 内燃機関の空燃比制御装置
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US5268086A (en) * 1991-08-07 1993-12-07 Ford Motor Company Catalyst monitoring using ego sensors
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US5159810A (en) * 1991-08-26 1992-11-03 Ford Motor Company Catalytic converter monitoring using downstream oxygen sensor
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DE4112478C2 (de) * 1991-04-17 2001-03-08 Bosch Gmbh Robert Verfahren und Vorrichtung zum Beurteilen des Alterungszustandes eines Katalysators
JP3247720B2 (ja) 1991-04-17 2002-01-21 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 触媒の老化状態を判定する方法及び装置
DE102004002291B4 (de) * 2004-01-16 2010-01-07 Audi Ag Verfahren zum Betreiben einer Brennkraftmaschine eines Fahrzeuges, insbesondere eines Kraftfahrzeuges

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JPH0525066B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-04-09
ATA107385A (de) 1994-09-15
AT399398B (de) 1995-04-25
US4622809A (en) 1986-11-18

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