FR2971008B1 - Procede de surveillance d'un systeme de dosage, notamment pour un catalyseur scr - Google Patents
Procede de surveillance d'un systeme de dosage, notamment pour un catalyseur scr Download PDFInfo
- Publication number
- FR2971008B1 FR2971008B1 FR1250942A FR1250942A FR2971008B1 FR 2971008 B1 FR2971008 B1 FR 2971008B1 FR 1250942 A FR1250942 A FR 1250942A FR 1250942 A FR1250942 A FR 1250942A FR 2971008 B1 FR2971008 B1 FR 2971008B1
- Authority
- FR
- France
- Prior art keywords
- monitoring
- scr catalyst
- dosing system
- reference values
- transfer pump
- 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
Links
- 239000003054 catalyst Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000012544 monitoring process Methods 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
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
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or 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
- F01N2550/05—Systems for adding substances into exhaust
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
- F01N2610/146—Control thereof, e.g. control of injectors or injection valves
-
- 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
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
- F01N2900/1806—Properties of reducing agent or dosing system
- F01N2900/1808—Pressure
-
- 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
Abstract
Procédé de surveillance d'un système de dosage, notamment pour un catalyseur SCR (12) comprenant un réservoir (14) contenant un liquide, une pompe de transfert (16) régulée en pression et au moins une soupape de dosage (13). On compare la valeur de commande de la pompe de transfert (16) à des valeurs de référence prédéfinies et en cas de dépassement vers le haut et/ou vers le bas des valeurs de référence, on estime que le système de dosage a un défaut.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011003499A DE102011003499A1 (de) | 2011-02-02 | 2011-02-02 | Verfahren zur Überwachung eines Dosiersystems insbesondere für einen SCR-Katalysator |
DE102011003499.4 | 2011-02-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2971008A1 FR2971008A1 (fr) | 2012-08-03 |
FR2971008B1 true FR2971008B1 (fr) | 2020-06-19 |
Family
ID=46511265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1250942A Expired - Fee Related FR2971008B1 (fr) | 2011-02-02 | 2012-02-01 | Procede de surveillance d'un systeme de dosage, notamment pour un catalyseur scr |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102011003499A1 (fr) |
FR (1) | FR2971008B1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112014001022B4 (de) | 2013-02-27 | 2021-07-29 | Cummins Ip, Inc. | Vorrichtung, Verfahren und System zur Diagnose der Leistung von Reduktionsmittelabgabe |
FR3002782B1 (fr) * | 2013-03-01 | 2015-03-27 | Peugeot Citroen Automobiles Sa | Procede de detection d'un dysfonctionnement d'un systeme de reduction catalytique selective |
DE102014210877A1 (de) * | 2014-06-06 | 2015-12-17 | Continental Automotive Gmbh | Funktionsüberwachung einer Einspritzanlage |
DE102014223069B4 (de) | 2014-11-12 | 2023-06-01 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Erkennung von Gasblasen in einer Fördereinrichtung für Reduktionsmittel |
DE102018200467A1 (de) * | 2018-01-12 | 2019-07-18 | Robert Bosch Gmbh | Verfahren zum Einlernen von mindestens einem Pumpenmerkmal einer Pumpe eines Fördermoduls eines SCR-Katalysatorsystems |
DE102018200471A1 (de) * | 2018-01-12 | 2019-07-18 | Robert Bosch Gmbh | Verfahren zur Detektion einer Funktionsstörung eines eine Förderpumpe aufweisenden Fördermoduls eines SCR-Katalysatorsystems |
DE102018200469A1 (de) * | 2018-01-12 | 2019-07-18 | Robert Bosch Gmbh | Verfahren zur Überwachung einer Veränderung eines Pumpenmerkmals über Lebenszeit eines eine Förderpumpe aufweisenden Fördermoduls eines SCR-Katalysatorsystems |
-
2011
- 2011-02-02 DE DE102011003499A patent/DE102011003499A1/de not_active Ceased
-
2012
- 2012-02-01 FR FR1250942A patent/FR2971008B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE102011003499A1 (de) | 2012-08-02 |
FR2971008A1 (fr) | 2012-08-03 |
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Legal Events
Date | Code | Title | Description |
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PLFP | Fee payment |
Year of fee payment: 5 |
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Year of fee payment: 6 |
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PLFP | Fee payment |
Year of fee payment: 7 |
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PLSC | Publication of the preliminary search report |
Effective date: 20180824 |
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PLFP | Fee payment |
Year of fee payment: 9 |
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PLFP | Fee payment |
Year of fee payment: 10 |
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PLFP | Fee payment |
Year of fee payment: 11 |
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ST | Notification of lapse |
Effective date: 20231005 |