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FR3021355B1 - Procede et unite de diagnostic d'un capteur de pression differentielle - Google Patents

Procede et unite de diagnostic d'un capteur de pression differentielle Download PDF

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Publication number
FR3021355B1
FR3021355B1 FR1554313A FR1554313A FR3021355B1 FR 3021355 B1 FR3021355 B1 FR 3021355B1 FR 1554313 A FR1554313 A FR 1554313A FR 1554313 A FR1554313 A FR 1554313A FR 3021355 B1 FR3021355 B1 FR 3021355B1
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FR
France
Prior art keywords
differential pressure
gradient
diagnosing
pressure sensor
unit
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
FR1554313A
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English (en)
Other versions
FR3021355A1 (fr
Inventor
Thomas Zein
Yunjie Lian
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR3021355A1 publication Critical patent/FR3021355A1/fr
Application granted granted Critical
Publication of FR3021355B1 publication Critical patent/FR3021355B1/fr
Expired - Fee Related 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/24—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid specially adapted for measuring pressure in inlet or exhaust ducts of internal-combustion engines
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0422—Methods of control or diagnosing measuring the elapsed time
    • 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
    • F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
    • F01N2900/1406—Exhaust gas 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

Procédé de diagnostic d'un capteur de pression différentielle (15) qui détermine une pression différentielle (16) d'une unité de post-traitement des gaz d'échappement (11). Ce capteur est relié par un branchement amont (15.1) à la conduite (11) et en aval (15.2). Le diagnostic se fait sur la base de la comparaison d'un gradient en fonction du temps de la pression différentielle mesurée (16) et d'un gradient (32) prévisionnel. On détermine la corrélation entre la courbe du gradient mesuré (33) et la courbe du gradient prévisionnel (32). Pour une corrélation élevée ni le capteur (15) ni ses branchements (15.1, 15.2) sont défectueux.
FR1554313A 2014-05-22 2015-05-13 Procede et unite de diagnostic d'un capteur de pression differentielle Expired - Fee Related FR3021355B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014209718.5A DE102014209718A1 (de) 2014-05-22 2014-05-22 Verfahren und Diagnoseeinheit zur Diagnose eines Differenzdrucksensors
DE102014209718.5 2014-05-22

Publications (2)

Publication Number Publication Date
FR3021355A1 FR3021355A1 (fr) 2015-11-27
FR3021355B1 true FR3021355B1 (fr) 2020-02-28

Family

ID=54431738

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1554313A Expired - Fee Related FR3021355B1 (fr) 2014-05-22 2015-05-13 Procede et unite de diagnostic d'un capteur de pression differentielle

Country Status (3)

Country Link
CN (1) CN105089758B (fr)
DE (1) DE102014209718A1 (fr)
FR (1) FR3021355B1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016218820B4 (de) * 2016-09-29 2019-01-10 Audi Ag Verfahren zum Diagnostizieren einer Messung einer Druckdifferenz
US10385754B2 (en) * 2016-12-20 2019-08-20 GM Global Technology Operations LLC Method and apparatus for monitoring flow resistance in an exhaust aftertreatment system
DE102017205361A1 (de) * 2017-03-29 2018-10-04 Robert Bosch Gmbh Verfahren und Computerprogrammprodukt zur Diagnose eines Partikelfilters
DE102017006400A1 (de) 2017-07-06 2019-01-10 Daimler Ag Verfahren zum Beurteilen eines Zustands eines Partikelfilters und Abgasanlage für einen Kraftwagen
DE102017211575B4 (de) 2017-07-06 2019-07-04 Robert Bosch Gmbh Verfahren und Vorrichtung zur Diagnose eines Differenzdrucksensors eines Partikelfilters
DE102017220130B4 (de) * 2017-11-13 2023-10-26 Robert Bosch Gmbh Verfahren und Vorrichtung zur Diagnose eines Differenzdrucksensors eines Partikelfilters
DE102017222313A1 (de) * 2017-12-08 2019-06-13 Robert Bosch Gmbh Verfahren und Vorrichtung zur Diagnose eines Differenzdrucksensors eines Partikelfilters
DE102017223194B4 (de) * 2017-12-19 2023-04-20 Robert Bosch Gmbh Verfahren und Vorrichtung zur Diagnose eines Partikelfilters
FR3077133B1 (fr) * 2018-01-19 2020-07-17 Psa Automobiles Sa Procede de controle de conformite au montage d'un capteur de pression d'un filtre a particules de moteur thermique
DE102018215195A1 (de) * 2018-09-07 2020-03-26 Volkswagen Aktiengesellschaft Verfahren zur Plausibilisierung eines Drucksensors
DE102018218209A1 (de) * 2018-10-24 2020-04-30 Robert Bosch Gmbh Verfahren zur Überwachung eines Abgasnachbehandlungssystems einer Brennkraftmaschine
FR3094752B1 (fr) * 2019-04-03 2021-03-12 Psa Automobiles Sa Procede de diagnostic de presence de gel dans un piquage d'un capteur de pression differentielle
FR3096736A1 (fr) 2019-05-28 2020-12-04 Psa Automobiles Sa Procede de diagnostic d'un etat de connexion d'un capteur de pression differentielle
DE102020214627A1 (de) 2020-11-20 2022-05-25 Volkswagen Aktiengesellschaft Verfahren zur Erkennung einer Fehlfunktion eines Differenzdrucksensors oder eines Drucksensorpaares
CN114673585B (zh) * 2022-04-19 2023-06-23 潍柴动力股份有限公司 压差传感器的故障诊断方法及其装置、处理器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005034270A1 (de) 2005-07-22 2007-01-25 Robert Bosch Gmbh Verfahren zur Diagnose eines im Abgasbereich einer Brennkraftmaschine angeordneten Differenzdrucksensors und Vorrichtung zur Durchführung des Verfahrens
JP4872615B2 (ja) 2006-11-14 2012-02-08 株式会社デンソー 内燃機関の診断装置
DE102006055237A1 (de) * 2006-11-23 2008-05-29 Robert Bosch Gmbh Verfahren zur Prüfung der Vollständigkeit einer Regeneration eines Partikelfilters im Abgas eines Verbrennungsmotors
JP2010222993A (ja) * 2009-03-19 2010-10-07 Yanmar Co Ltd 内燃機関の排気浄化装置
DE102011003748A1 (de) 2011-02-08 2012-08-09 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung der Funktion eines Differenzdrucksensors
US8398742B2 (en) * 2011-05-19 2013-03-19 GM Global Technology Operations LLC Pressure sensor disconnection detection systems and methods
GB2496876B (en) * 2011-11-24 2017-12-06 Ford Global Tech Llc Detection of soot burn in a vehicle
US8966882B2 (en) * 2012-09-12 2015-03-03 GM Global Technology Operations LLC Differential pressure-based enablement of a particulate filter diagnostic

Also Published As

Publication number Publication date
FR3021355A1 (fr) 2015-11-27
CN105089758A (zh) 2015-11-25
CN105089758B (zh) 2019-02-26
DE102014209718A1 (de) 2015-11-26

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