EP2199586A3 - Method for testing the function of a tank ventilation valve - Google Patents

Method for testing the function of a tank ventilation valve Download PDF

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Publication number
EP2199586A3
EP2199586A3 EP09014657.2A EP09014657A EP2199586A3 EP 2199586 A3 EP2199586 A3 EP 2199586A3 EP 09014657 A EP09014657 A EP 09014657A EP 2199586 A3 EP2199586 A3 EP 2199586A3
Authority
EP
European Patent Office
Prior art keywords
tank
time
testing
venting valve
function
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.)
Withdrawn
Application number
EP09014657.2A
Other languages
German (de)
French (fr)
Other versions
EP2199586A2 (en
Inventor
Oliver Grunwald
Siegfried Meixner
Peter Enders
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Publication of EP2199586A2 publication Critical patent/EP2199586A2/en
Publication of EP2199586A3 publication Critical patent/EP2199586A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/0809—Judging failure of purge control system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/0809—Judging failure of purge control system
    • F02M25/0827—Judging failure of purge control system by monitoring engine running conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Prüfung der Funktion eines Tankentlüftungsventils (11) zwischen einem Ansaugtrakt (10) einer Brennkraftmaschine (1) und einem Kraftstofftank (2) oder einem Kraftstoffdampfspeicher (5), bei dem das Tankentlüftungsventil (11) im Betrieb der Brennkraftmaschine (1) mehrmals geöffnet und nach einer kurzen Öffnungszeit wieder geschlossen wird und bei dem während des mehrmaligen Öffnens und Schließens ein zeitlicher Verlauf von mindestens einer vom Öffnungszustand des Tankentlüftungsventils (11) abhängigen Größe aufgezeichnet wird. Um selbst im Fall von sehr kleinen und/oder zeitversetzten Amplituden der zu überwachenden Größe eine zuverlässige Funktionsprüfung des Tankentlüftungsventils (11) zu ermöglichen, wird erfindungsgemäß vorgeschlagen, dass die erste Ableitung des zeitlichen Verlaufs der Größe ausgewertet wird.

Figure imgaf001
The invention relates to a method for testing the function of a tank-venting valve (11) between an intake tract (10) of an internal combustion engine (1) and a fuel tank (2) or a fuel vapor accumulator (5), in which the tank-venting valve (11) during operation of the internal combustion engine ( 1) is opened several times and closed again after a short opening time and in which during the repeated opening and closing a time course of at least one of the opening state of the tank venting valve (11) dependent size is recorded. In order to enable a reliable functional test of the tank ventilation valve (11) even in the case of very small and / or time-shifted amplitudes of the monitored quantity, it is proposed according to the invention that the first derivative of the time profile of the variable is evaluated.
Figure imgaf001
EP09014657.2A 2008-12-20 2009-11-25 Method for testing the function of a tank ventilation valve Withdrawn EP2199586A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008064345A DE102008064345A1 (en) 2008-12-20 2008-12-20 Method for testing the function of a tank ventilation valve

Publications (2)

Publication Number Publication Date
EP2199586A2 EP2199586A2 (en) 2010-06-23
EP2199586A3 true EP2199586A3 (en) 2014-04-02

Family

ID=41491514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09014657.2A Withdrawn EP2199586A3 (en) 2008-12-20 2009-11-25 Method for testing the function of a tank ventilation valve

Country Status (4)

Country Link
US (1) US8359911B2 (en)
EP (1) EP2199586A3 (en)
CN (1) CN101746258B (en)
DE (1) DE102008064345A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2957981B1 (en) 2010-03-24 2014-07-04 Continental Automotive France METHOD AND DEVICE FOR DETECTING THE LOCKING OF THE FAN VALVE FUEL VAPOR VALVE
FR2958690B1 (en) * 2010-04-08 2014-01-17 Continental Automotive France METHOD AND DEVICE FOR DETECTING THE LOCKING OF THE FAN VALVE FUEL VAPOR VALVE
DE102011084859B4 (en) 2011-10-20 2024-04-25 Robert Bosch Gmbh Procedure for diagnosing a tank vent valve
CN106540363B (en) * 2016-11-03 2019-06-14 湖南明康中锦医疗科技发展有限公司 The method and ventilator of identification of breathing conversion
CN107191666B (en) * 2017-05-23 2019-09-17 浙江理工大学 Safety cut-off valve performance monitoring method and system towards Natural Gas Station
DE102019103544A1 (en) * 2019-02-13 2020-08-13 Bayerische Motoren Werke Aktiengesellschaft Method for controlling a metering valve, tank ventilation system and motor vehicle
CN110763500B (en) * 2019-11-04 2021-05-04 中国原子能科学研究院 Test bed and test method for air door performance test
US11428184B1 (en) * 2021-04-26 2022-08-30 Ford Global Technologies, Llc Method and system for diagnosing grade vent valves
DE102022124589A1 (en) 2022-09-26 2024-03-28 Bayerische Motoren Werke Aktiengesellschaft Method for diagnosing a tank ventilation valve, control unit and internal combustion engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07119557A (en) * 1993-10-15 1995-05-09 Toyota Motor Corp Abnormality detecting device for evaporative fuel purge system in internal combustion engine
US20030019286A1 (en) * 2001-07-25 2003-01-30 Keiji Wakahara Leak-check apparatus of fuel-vapor-processing system, fuel-temperature estimation apparatus and fuel-temperature-sensor diagnosis apparatus
WO2003012278A1 (en) * 2001-07-25 2003-02-13 Robert Bosch Gmbh Method and control unit for the functional diagnosis of a fuel tank ventilation valve in a fuel tank system, especially in a motor vehicle
DE10220223A1 (en) * 2002-05-06 2003-12-04 Bosch Gmbh Robert Functional diagnosis of internal combustion engine fuel tank system ventilation valve, involves drawing valve functionality conclusion from detected variation in operating parameter under no load
DE10328364A1 (en) * 2002-06-25 2004-02-12 Mitsubishi Jidosha Kogyo K.K. Fault diagnosis device for fuel evaporation/sublimation-prevention system, has first and second diagnostic devices and fault diagnosis region, assesses restored pressure values to detect abnormality
DE10324813A1 (en) * 2003-06-02 2005-01-05 Robert Bosch Gmbh Method for diagnosing a tank venting valve
US6889121B1 (en) * 2004-03-05 2005-05-03 Woodward Governor Company Method to adaptively control and derive the control voltage of solenoid operated valves based on the valve closure point

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4342431A1 (en) * 1993-12-11 1995-06-14 Bosch Gmbh Robert Procedure for determining statements about the condition of a tank ventilation system
DE10008189C2 (en) * 2000-02-23 2002-02-14 Bayerische Motoren Werke Ag Device and method for checking a tank ventilation system
DE10043071A1 (en) * 2000-09-01 2002-03-14 Bosch Gmbh Robert Procedure for diagnosing the tank vent valve
JP2002371924A (en) * 2001-06-15 2002-12-26 Mitsubishi Electric Corp Trouble diagnosis device of evaporative emission purge system
DE10150420A1 (en) * 2001-10-11 2003-04-30 Bosch Gmbh Robert Method for checking the functionality of a tank ventilation valve of a tank ventilation system
JP2004232521A (en) * 2003-01-29 2004-08-19 Denso Corp Leak check device of evaporation fuel treating device
JP2004270534A (en) * 2003-03-07 2004-09-30 Fuji Heavy Ind Ltd Fault diagnosis device of evaporative purge system
JP2004301119A (en) * 2003-03-14 2004-10-28 Honda Motor Co Ltd Failure diagnostic system for vaporized fuel processing device
JP3923473B2 (en) * 2003-05-21 2007-05-30 本田技研工業株式会社 Failure diagnosis device for evaporative fuel treatment equipment
JP4191115B2 (en) * 2004-09-07 2008-12-03 本田技研工業株式会社 Failure diagnosis device for evaporative fuel treatment equipment
DE102005049068A1 (en) 2005-10-13 2007-04-19 Robert Bosch Gmbh Fuel tank venting method for testing the operatability of a fuel tank venting valve operates between an internal combustion engine and a fuel vapor accumulator
JP4640133B2 (en) * 2005-11-22 2011-03-02 日産自動車株式会社 Evaporative fuel treatment device leak diagnosis device
DE102006034807A1 (en) 2006-07-27 2008-01-31 Robert Bosch Gmbh Tank ventilation valve functional diagnosis method for e.g. tank ventilation system, involves determining two error types based on mixture reaction and varying error types between open and closed clamping tank ventilation valves
DE102006045678B4 (en) * 2006-09-27 2012-08-09 Continental Automotive Gmbh Method for checking a tank ventilation device, control device and internal combustion engine
DE102008000759A1 (en) * 2008-03-19 2009-09-24 Robert Bosch Gmbh Method and device for testing the functionality of a tank ventilation valve
DE102008039300A1 (en) * 2008-08-22 2010-03-04 Audi Ag Fuel tank firmness testing method for use in internal combustion engine of motor vehicle, involves testing opening characteristics of pressure switch for diagnosing operability of pressure switch after turning off of combustion engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07119557A (en) * 1993-10-15 1995-05-09 Toyota Motor Corp Abnormality detecting device for evaporative fuel purge system in internal combustion engine
US20030019286A1 (en) * 2001-07-25 2003-01-30 Keiji Wakahara Leak-check apparatus of fuel-vapor-processing system, fuel-temperature estimation apparatus and fuel-temperature-sensor diagnosis apparatus
WO2003012278A1 (en) * 2001-07-25 2003-02-13 Robert Bosch Gmbh Method and control unit for the functional diagnosis of a fuel tank ventilation valve in a fuel tank system, especially in a motor vehicle
DE10220223A1 (en) * 2002-05-06 2003-12-04 Bosch Gmbh Robert Functional diagnosis of internal combustion engine fuel tank system ventilation valve, involves drawing valve functionality conclusion from detected variation in operating parameter under no load
DE10328364A1 (en) * 2002-06-25 2004-02-12 Mitsubishi Jidosha Kogyo K.K. Fault diagnosis device for fuel evaporation/sublimation-prevention system, has first and second diagnostic devices and fault diagnosis region, assesses restored pressure values to detect abnormality
DE10324813A1 (en) * 2003-06-02 2005-01-05 Robert Bosch Gmbh Method for diagnosing a tank venting valve
US6889121B1 (en) * 2004-03-05 2005-05-03 Woodward Governor Company Method to adaptively control and derive the control voltage of solenoid operated valves based on the valve closure point

Also Published As

Publication number Publication date
CN101746258B (en) 2013-03-20
EP2199586A2 (en) 2010-06-23
US8359911B2 (en) 2013-01-29
US20100162804A1 (en) 2010-07-01
DE102008064345A1 (en) 2010-06-24
CN101746258A (en) 2010-06-23

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