FR3061515B1 - METHOD OF INJECTING UREA IN A SELECTIVE REDUCTION CATALYST AND EXHAUST GAS POST-TREATMENT SYSTEM OF A HEAT ENGINE - Google Patents

METHOD OF INJECTING UREA IN A SELECTIVE REDUCTION CATALYST AND EXHAUST GAS POST-TREATMENT SYSTEM OF A HEAT ENGINE Download PDF

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Publication number
FR3061515B1
FR3061515B1 FR1750053A FR1750053A FR3061515B1 FR 3061515 B1 FR3061515 B1 FR 3061515B1 FR 1750053 A FR1750053 A FR 1750053A FR 1750053 A FR1750053 A FR 1750053A FR 3061515 B1 FR3061515 B1 FR 3061515B1
Authority
FR
France
Prior art keywords
reduction catalyst
selective reduction
exhaust gas
treatment system
heat engine
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
FR1750053A
Other languages
French (fr)
Other versions
FR3061515A1 (en
Inventor
Mathieu Artault
Guillaume Jumel
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.)
PSA Automobiles SA
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 FR1750053A priority Critical patent/FR3061515B1/en
Publication of FR3061515A1 publication Critical patent/FR3061515A1/en
Application granted granted Critical
Publication of FR3061515B1 publication Critical patent/FR3061515B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • 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
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0412—Methods of control or diagnosing using pre-calibrated maps, tables or charts
    • 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
    • F01N2900/10—Parameters used for exhaust control or diagnosing said parameters being related to the vehicle or its components
    • 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
    • F01N2900/10—Parameters used for exhaust control or diagnosing said parameters being related to the vehicle or its components
    • F01N2900/102—Travelling distance
    • 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
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1606—Particle filter loading or soot amount
    • 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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

Le procédé d'injection d'urée est mis en œuvre dans un système de post-traitement des gaz d'échappement d'un moteur thermique de véhicule automobile comprenant un catalyseur de réduction sélective et un filtre à particules, le procédé comprenant une prédiction (S2, MP1, MP2) d'une prochaine régénération (RG) du filtre à particules et une limitation de l'injection d'urée (S4) de manière à réduire avant la prochaine régénération une quantité d'ammoniac stockée dans le catalyseur de réduction sélective. Conformément à l'invention, le procédé comprend une étape de prédiction (S2) délivrant une prédiction consolidée (DRG) d'une prochaine régénération en fonction d'une prédiction principale (MP1, D1) basée sur un taux de roulage en ville (TR) du véhicule.The urea injection process is carried out in an exhaust aftertreatment system of a motor vehicle engine comprising a selective reduction catalyst and a particulate filter, the method comprising a prediction ( S2, MP1, MP2) of a next regeneration (RG) of the particulate filter and a limitation of the injection of urea (S4) so as to reduce before the next regeneration a quantity of ammonia stored in the reduction catalyst selective. According to the invention, the method comprises a prediction step (S2) delivering a consolidated prediction (DRG) of a next regeneration according to a main prediction (MP1, D1) based on a city taxiing rate (TR ) of the vehicle.

FR1750053A 2017-01-03 2017-01-03 METHOD OF INJECTING UREA IN A SELECTIVE REDUCTION CATALYST AND EXHAUST GAS POST-TREATMENT SYSTEM OF A HEAT ENGINE Expired - Fee Related FR3061515B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1750053A FR3061515B1 (en) 2017-01-03 2017-01-03 METHOD OF INJECTING UREA IN A SELECTIVE REDUCTION CATALYST AND EXHAUST GAS POST-TREATMENT SYSTEM OF A HEAT ENGINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1750053 2017-01-03
FR1750053A FR3061515B1 (en) 2017-01-03 2017-01-03 METHOD OF INJECTING UREA IN A SELECTIVE REDUCTION CATALYST AND EXHAUST GAS POST-TREATMENT SYSTEM OF A HEAT ENGINE

Publications (2)

Publication Number Publication Date
FR3061515A1 FR3061515A1 (en) 2018-07-06
FR3061515B1 true FR3061515B1 (en) 2019-05-24

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FR1750053A Expired - Fee Related FR3061515B1 (en) 2017-01-03 2017-01-03 METHOD OF INJECTING UREA IN A SELECTIVE REDUCTION CATALYST AND EXHAUST GAS POST-TREATMENT SYSTEM OF A HEAT ENGINE

Country Status (1)

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FR (1) FR3061515B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10961893B2 (en) * 2018-08-24 2021-03-30 Ford Global Technologies, Llc Systems and methods for particulate filter regeneration

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013158063A1 (en) * 2012-04-16 2013-10-24 International Engine Intellectual Property Company, Llc Optimization of ammonia dosing during regeneration
FR3005103B1 (en) * 2013-04-25 2015-05-15 Peugeot Citroen Automobiles Sa METHOD FOR PREVIOUSLY RELEASING REGENERATION OF A PARTICLE FILTER

Also Published As

Publication number Publication date
FR3061515A1 (en) 2018-07-06

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