FR2983903B1 - METHODS OF DETECTING AND SUPPRESSING A PLUG IN A SELECTIVE CATALYTIC REDUCTION DEVICE, SYSTEM AND MOTOR VEHICLE THEREFOR - Google Patents

METHODS OF DETECTING AND SUPPRESSING A PLUG IN A SELECTIVE CATALYTIC REDUCTION DEVICE, SYSTEM AND MOTOR VEHICLE THEREFOR

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Publication number
FR2983903B1
FR2983903B1 FR1161301A FR1161301A FR2983903B1 FR 2983903 B1 FR2983903 B1 FR 2983903B1 FR 1161301 A FR1161301 A FR 1161301A FR 1161301 A FR1161301 A FR 1161301A FR 2983903 B1 FR2983903 B1 FR 2983903B1
Authority
FR
France
Prior art keywords
plug
detecting
catalytic reduction
selective catalytic
reduction device
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.)
Active
Application number
FR1161301A
Other languages
French (fr)
Other versions
FR2983903A1 (en
Inventor
Dara Suy
Fabien Alquier
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.)
Stellantis Auto Sas Fr
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Priority to FR1161301A priority Critical patent/FR2983903B1/en
Publication of FR2983903A1 publication Critical patent/FR2983903A1/en
Application granted granted Critical
Publication of FR2983903B1 publication Critical patent/FR2983903B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • 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
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using 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
    • Y02T10/12—Improving ICE efficiencies
    • 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)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

L'invention propose un procédé de détection d'un bouchon dans une conduite d'alimentation en urée liquide d'un dispositif de réduction catalytique sélective, la conduite d'alimentation étant munie d'un injecteur et d'un capteur de pression dans la conduite d'alimentation, le procédé comportant les étapes consistant en : - l'ouverture (54) de l'injecteur pendant un temps prédéterminé ; - la détection (50, 52) d'une pression dans la conduite d'alimentation supérieure à une valeur de pression seuil (48) ; - la comparaison (66) de l'intervalle de temps séparant l'ouverture de l'injecteur de la détection de la pression supérieure à la valeur de pression seuil (48) avec une durée seuil (60) ; - la détection (68) d'un bouchon quand l'intervalle de temps est inférieur à la durée seuil (60).The invention provides a method for detecting a plug in a liquid urea feed line of a selective catalytic reduction device, the feed line being provided with an injector and a pressure sensor in the device. supply line, the method comprising the steps of: - opening (54) of the injector for a predetermined time; - the detection (50, 52) of a pressure in the supply pipe greater than a threshold pressure value (48); - the comparison (66) of the time interval separating the opening of the injector from the detection of the pressure above the threshold pressure value (48) with a threshold duration (60); - the detection (68) of a traffic jam when the time interval is less than the threshold duration (60).

FR1161301A 2011-12-08 2011-12-08 METHODS OF DETECTING AND SUPPRESSING A PLUG IN A SELECTIVE CATALYTIC REDUCTION DEVICE, SYSTEM AND MOTOR VEHICLE THEREFOR Active FR2983903B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1161301A FR2983903B1 (en) 2011-12-08 2011-12-08 METHODS OF DETECTING AND SUPPRESSING A PLUG IN A SELECTIVE CATALYTIC REDUCTION DEVICE, SYSTEM AND MOTOR VEHICLE THEREFOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1161301A FR2983903B1 (en) 2011-12-08 2011-12-08 METHODS OF DETECTING AND SUPPRESSING A PLUG IN A SELECTIVE CATALYTIC REDUCTION DEVICE, SYSTEM AND MOTOR VEHICLE THEREFOR

Publications (2)

Publication Number Publication Date
FR2983903A1 FR2983903A1 (en) 2013-06-14
FR2983903B1 true FR2983903B1 (en) 2014-02-07

Family

ID=45809160

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1161301A Active FR2983903B1 (en) 2011-12-08 2011-12-08 METHODS OF DETECTING AND SUPPRESSING A PLUG IN A SELECTIVE CATALYTIC REDUCTION DEVICE, SYSTEM AND MOTOR VEHICLE THEREFOR

Country Status (1)

Country Link
FR (1) FR2983903B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113047931A (en) * 2021-03-04 2021-06-29 广西玉柴机器股份有限公司 Method and device for diagnosing urea solution consumption deviation
CN113250797B (en) * 2021-04-29 2022-07-15 广西玉柴机器股份有限公司 Method and device for diagnosing urea solution consumption deviation process
CN114112849B (en) * 2021-11-30 2024-09-17 潍柴动力股份有限公司 DPF fault diagnosis method, diagnosis device, vehicle and storage medium

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3714559B1 (en) * 2004-11-05 2005-11-09 日産ディーゼル工業株式会社 Exhaust purification device
JP2007138719A (en) * 2005-11-14 2007-06-07 Bosch Corp Nox purification system and method of verifying clogging of nox purification system
JP4804242B2 (en) * 2006-06-26 2011-11-02 Ｕｄトラックス株式会社 Engine exhaust purification system
JP4799289B2 (en) * 2006-06-26 2011-10-26 Ｕｄトラックス株式会社 Engine exhaust purification system
JP5325850B2 (en) * 2009-10-30 2013-10-23 ボッシュ株式会社 Abnormality detection device and abnormality detection method for reducing agent injection valve, and exhaust purification device for internal combustion engine

Also Published As

Publication number Publication date
FR2983903A1 (en) 2013-06-14

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