EP4166776A1 - Verfahren zur diagnose der plausibilität eines luftdurchflussmessersensors in einer brennkraftmaschine - Google Patents

Verfahren zur diagnose der plausibilität eines luftdurchflussmessersensors in einer brennkraftmaschine Download PDF

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Publication number
EP4166776A1
EP4166776A1 EP22200736.1A EP22200736A EP4166776A1 EP 4166776 A1 EP4166776 A1 EP 4166776A1 EP 22200736 A EP22200736 A EP 22200736A EP 4166776 A1 EP4166776 A1 EP 4166776A1
Authority
EP
European Patent Office
Prior art keywords
egr
upstream
pressure
intake
downstream
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.)
Pending
Application number
EP22200736.1A
Other languages
English (en)
French (fr)
Inventor
Hugo DAMANCE
Cedric LEFEVRE
Luc Pereira
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.)
New H Powertrain Holding SLU
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Publication of EP4166776A1 publication Critical patent/EP4166776A1/de
Pending legal-status Critical Current

Links

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
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
    • F02D41/0055—Special engine operating conditions, e.g. for regeneration of exhaust gas treatment 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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F02D41/0065—Specific aspects of external EGR control
    • F02D41/0072—Estimating, calculating or determining the EGR rate, amount or flow
    • 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
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0402—Engine intake system parameters the parameter being determined by using a model of the engine intake or its components
    • 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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/003—Adding fuel vapours, e.g. drawn from engine fuel reservoir

Definitions

  • the object of the invention is to overcome at least some of the aforementioned drawbacks and to propose a diagnostic method capable of combining the advantages of precision, stability and reliability for its implementation.
  • the first set is made up of all of the gas flows, with the exception of the air flow, which enter the cylinders of the engine.
  • these are the low and high pressure recirculated exhaust gas flows and the fuel vapor purge flows returned downstream of the flow meter and downstream of the intake flap .
  • the list is not exhaustive.
  • the first threshold value is for example between fifteen and twenty-five hundredths.
  • each of the first, second, third and fourth flow rate values is taken into account is conditioned to calculate the median at a stability of said flow rate values, so as to take into account that the flow rates are not temporally synchronized and to rule out transient effects on the flow rates likely to move them away from their stable operating points.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Testing Of Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP22200736.1A 2021-10-14 2022-10-11 Verfahren zur diagnose der plausibilität eines luftdurchflussmessersensors in einer brennkraftmaschine Pending EP4166776A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2110899A FR3128251B1 (fr) 2021-10-14 2021-10-14 Procédé de diagnostic de la plausibilité de dérive d’un capteur débitmètre d’air dans un moteur thermique

Publications (1)

Publication Number Publication Date
EP4166776A1 true EP4166776A1 (de) 2023-04-19

Family

ID=79018668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22200736.1A Pending EP4166776A1 (de) 2021-10-14 2022-10-11 Verfahren zur diagnose der plausibilität eines luftdurchflussmessersensors in einer brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP4166776A1 (de)
FR (1) FR3128251B1 (de)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2010965A1 (de) 1968-06-15 1970-02-20 Basf Ag
US5384707A (en) * 1990-12-07 1995-01-24 Ford Motor Company Diagnostic airflow measurement
DE10341010A1 (de) * 2002-09-06 2004-05-27 Mitsubishi Fuso Truck And Bus Corp. Fehlererfassungsvorrichtung für eine Brennkraftmaschine
JP2006329138A (ja) 2005-05-30 2006-12-07 Nissan Diesel Motor Co Ltd エアフローセンサの故障診断装置
US20080270011A1 (en) 2007-04-27 2008-10-30 Hideyuki Takahashi Apparatus for failure diagnosis of an intake air flow sensor
WO2011067097A1 (de) * 2009-12-02 2011-06-09 Robert Bosch Gmbh Verfahren zum betreiben einer brennkraftmaschine
EP2543857A1 (de) * 2011-07-06 2013-01-09 Kabushiki Kaisha Toyota Jidoshokki Systeme zur Bewertung einer möglichen Abnormalität in einem Motor
DE102014105838A1 (de) 2013-12-17 2015-06-18 Hyundai Motor Company Verfahren und System zur Diagnose und Korrektur eines Ladedrucksensors und eines Luftdurchflusssensors durch ein Verbrennungsdrucksignal
FR3053117A1 (fr) 2016-06-23 2017-12-29 Renault Sas Procede de detection d'une fuite d'air en aval d'un compresseur d'un turbocompresseur
DE102016220029A1 (de) * 2016-10-14 2018-04-19 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung eines Luftmassensensors einer Brennkraftmaschine mit Abgasrückführung

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2010965A1 (de) 1968-06-15 1970-02-20 Basf Ag
US5384707A (en) * 1990-12-07 1995-01-24 Ford Motor Company Diagnostic airflow measurement
DE10341010A1 (de) * 2002-09-06 2004-05-27 Mitsubishi Fuso Truck And Bus Corp. Fehlererfassungsvorrichtung für eine Brennkraftmaschine
JP2006329138A (ja) 2005-05-30 2006-12-07 Nissan Diesel Motor Co Ltd エアフローセンサの故障診断装置
US20080270011A1 (en) 2007-04-27 2008-10-30 Hideyuki Takahashi Apparatus for failure diagnosis of an intake air flow sensor
WO2011067097A1 (de) * 2009-12-02 2011-06-09 Robert Bosch Gmbh Verfahren zum betreiben einer brennkraftmaschine
EP2543857A1 (de) * 2011-07-06 2013-01-09 Kabushiki Kaisha Toyota Jidoshokki Systeme zur Bewertung einer möglichen Abnormalität in einem Motor
DE102014105838A1 (de) 2013-12-17 2015-06-18 Hyundai Motor Company Verfahren und System zur Diagnose und Korrektur eines Ladedrucksensors und eines Luftdurchflusssensors durch ein Verbrennungsdrucksignal
FR3053117A1 (fr) 2016-06-23 2017-12-29 Renault Sas Procede de detection d'une fuite d'air en aval d'un compresseur d'un turbocompresseur
DE102016220029A1 (de) * 2016-10-14 2018-04-19 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung eines Luftmassensensors einer Brennkraftmaschine mit Abgasrückführung

Also Published As

Publication number Publication date
FR3128251B1 (fr) 2023-09-01
FR3128251A1 (fr) 2023-04-21

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