WO2011124358A1 - Procede et dispositif de detection de blocage de vanne de purge de filtre a vapeurs d'essence - Google Patents
Procede et dispositif de detection de blocage de vanne de purge de filtre a vapeurs d'essence Download PDFInfo
- Publication number
- WO2011124358A1 WO2011124358A1 PCT/EP2011/001679 EP2011001679W WO2011124358A1 WO 2011124358 A1 WO2011124358 A1 WO 2011124358A1 EP 2011001679 W EP2011001679 W EP 2011001679W WO 2011124358 A1 WO2011124358 A1 WO 2011124358A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- internal combustion
- purge valve
- combustion engine
- engine
- indicator
- 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.)
- Ceased
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
-
- 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
-
- 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
Definitions
- the invention relates to the field of vehicle engines. It relates more specifically to the detection of failure of the gasoline vapor filter circuit ("canister" in English language) that equips vehicles with a gasoline internal combustion engine.
- the fuel tanks of these vehicles are equipped with a vapor recovery device.
- gasoline which reinjects them into the engine.
- This device usually called canister by the skilled person, is arranged near the fuel tank. It includes a carbon filter that fixes the gasoline vapors, especially when the engine is stopped.
- the injection of the vapors into the engine via the intake pipe is controlled by the engine control electronics ("ECU") allowing the opening and closing of a purge valve.
- ECU engine control electronics
- the present invention therefore aims to provide a device responding to the problem described above.
- a second object of the invention is to be simple and inexpensive to put implemented.
- the invention is directed to a method for detecting the blockage of a gasoline vapor filter purge valve for a vehicle internal combustion engine, the method comprises at least one sequence of the following steps:
- the step of calculating an indicator is a step of calculating correlation, over a predetermined duration, between the measured parameter and the state of the purge, and determination valve. if the calculated correlation is greater than a predetermined threshold.
- the step of calculating an indicator comprises a step of measuring the noise level observed on at least one operating parameter of the engine linked to the mixture admitted into said engine, before and after a change of state of the purge valve.
- the method comprises a filtering of the noise level on a studied parameter, then an integration of this noise level, over a determined duration after a change of state of the purge valve, then a comparison of this value embedded in a predetermined threshold.
- the method comprises a repetition of the steps as described above, so as to obtain a statistically significant measurement.
- the operating parameter measurement of the internal combustion engine is performed at an engine intake manifold
- the invention also relates to a device for detecting a gas vapor filter purge valve blocking device for a vehicle internal combustion engine, said device comprising:
- Means for measuring at least one operating parameter of the internal combustion engine linked to the mixture admitted into said engine
- the means for measuring at least one operating parameter of the internal combustion engine comprise at least one sensor disposed at an engine intake manifold.
- the invention finds its place in a land vehicle such as an automobile.
- the vehicle not shown in FIG. 1, comprises an internal combustion engine 1 powered by fuel contained in a fuel tank 2.
- the internal combustion engine 1 comprises an air intake manifold 5 and a fuel pipe. fuel supply 12, connected to the fuel tank 2.
- purge valve 4 is adapted to put into communication on command the vapor filter 3 and the air intake manifold 5 of the internal combustion engine 1, so as to partially recycle at least the fuel vapors contained in the filter with vapor 3.
- the vapor filter 3 is also in communication with an air intake 6 via a vent and a vent valve 7 (known under the term NVLD of the English "Natural Vacuum Leak Detector") capable of placing the vapor filter 3 in communication with the air intake 6.
- the vent valve 7 opens when the pressure in the vapor filter 3 exceeds a certain threshold or falls below a certain threshold. This is the case, for example, when the purge valve 4 is open and the internal combustion engine 1 is operating.
- the vacuum then created in the air intake manifold 5 sucks the fuel vapors contained in the vapor filter 3 and causes the opening of the vent valve 7. Air then passes through the filter at vapors 3 and is charged with fuel vapor before entering the air intake manifold 5.
- the vent valve 7 further comprises a pressure switch 8 adapted to switch a signal according to the level of depression in the vapor filter 3.
- the pressure switch 8 delivers its signal via a line 9 to a control electronics 10 which can be dedicated to system or shared with other vehicle components such as the internal combustion engine 1.
- the control electronics 10 is able to control the opening and closing of the purge valve 4 by a control line 11.
- the purge valve blocking detection method is implemented at part load of the engine, ie neither at idle nor at maximum power.
- the bleed valve 4 opens automatically. It closes when the pressure drops below a predetermined threshold.
- the process for detecting a purge valve blocking valve 4 of petrol vapor filter 3 comprises several steps:
- the method uses here a comparison between a signal observed before opening of the purge valve 4, and this same signal after opening of said purge valve 4. This comparison is done by correlating the measured parameter and the state of the purge valve 4.
- the purge valve 4 is blocked (in open or closed position). In this case, there is no correlation (or less than a predetermined threshold) between the state of the purge valve 4 and the signals observed.
- the control electronics 10 then records parameters whose correlation with the state change phases of the purge valve is below a predetermined threshold, which therefore characterizes a malfunction of the purge valve 4.
- Either the purge valve 4 is functioning properly. In this case, a correlation between the changes of state of the purge valve 4 and certain operating parameters of the internal combustion engine 1 is observed.
- the control electronics 10 calculates a correlation greater than a predetermined threshold, and thus characterizes an operational valve.
- the correlation measurement between the variations of a measured parameter and the state of the purge valve 4 provides a much more sensitive detection than the simple observation of a parameter, because of the high level of noise observed on the operating parameters. of the internal combustion engine 1 when it is not idling.
- the method makes it possible to detect a failure of the purge valve 4 without requiring a long period of engine idling, unlike the methods of the prior art.
- the method is applicable to any internal combustion engine 1, including in the case of hybrid motorization of vehicles, at any operating regime
- This method can be used in addition to other methods of detecting purge valve blocking 4.
- control electronics 10 controls one or more cycles of opening and closing of the purge valve 4, and records the measured parameters.
- control electronics 10 measure the noise level observed on at least one operating parameter of the internal combustion engine 1 linked to the mixture admitted into said engine, before and after a change of state of the engine. the purge valve 4.
- the noise level increases significantly when it is open, because of the admission into the internal combustion engine 1 of an additional volume of mixture.
- the factor of modification of the level of noise can indeed reach five or six during an opening of the valve bleed 4.
- the method then uses for example a filtering of the noise level on a parameter studied, then carries out an integration of this noise level, possibly averaged, over a determined duration after a change of state of the purge valve 4, then compares this value embedded in a predetermined threshold.
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)
- Combined Controls Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Testing Of Engines (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2012147445/06A RU2559211C2 (ru) | 2010-04-08 | 2011-04-05 | Способ и устройство обнаружения блокировки спускного клапана фильтра паров бензина |
| CN201180016918.XA CN102834602B (zh) | 2010-04-08 | 2011-04-05 | 汽油蒸汽过滤器的泄放阀门的堵塞检测方法和设备 |
| BR112012025538-0A BR112012025538B1 (pt) | 2010-04-08 | 2011-04-05 | Processo de detecção de bloqueio de válvula de purificação de filtro de vapores de gasolina para motor à combustão interna de veículo |
| US13/583,668 US8943878B2 (en) | 2010-04-08 | 2011-04-05 | Method and device for detecting the blockage of a gasoline vapor filter purge valve |
| KR1020127029375A KR101856018B1 (ko) | 2010-04-08 | 2011-04-05 | 가솔린 증기 필터 퍼지 밸브의 막힘을 검출하는 방법 및 장치 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1001458 | 2010-04-08 | ||
| FR1001458A FR2958690B1 (fr) | 2010-04-08 | 2010-04-08 | Procede et dispositif de detection de blocage de vanne de purge de filtre a vapeurs d'essence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011124358A1 true WO2011124358A1 (fr) | 2011-10-13 |
Family
ID=43037033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2011/001679 Ceased WO2011124358A1 (fr) | 2010-04-08 | 2011-04-05 | Procede et dispositif de detection de blocage de vanne de purge de filtre a vapeurs d'essence |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8943878B2 (fr) |
| KR (1) | KR101856018B1 (fr) |
| CN (1) | CN102834602B (fr) |
| BR (1) | BR112012025538B1 (fr) |
| FR (1) | FR2958690B1 (fr) |
| RU (1) | RU2559211C2 (fr) |
| WO (1) | WO2011124358A1 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2957858B1 (fr) * | 2010-03-24 | 2012-04-27 | Continental Automotive France | Procede et dispositif de detection de pincement de tuyau de liaison entre un reservoir et un filtre a vapeurs d'essence |
| FR3017946B1 (fr) * | 2014-02-27 | 2017-07-14 | Continental Automotive France | Procede de determination d'un debit traversant une vanne |
| FR3022606B1 (fr) * | 2014-06-19 | 2016-06-24 | Continental Automotive France | Procede de determination du point d'ouverture d'une vanne |
| JP6376518B2 (ja) * | 2016-03-23 | 2018-08-22 | マツダ株式会社 | 蒸発燃料処理装置の異常判定装置 |
| JP6809329B2 (ja) * | 2017-03-27 | 2021-01-06 | 株式会社デンソー | 蒸発燃料処理装置 |
| CN109300564B (zh) * | 2018-09-20 | 2022-11-18 | 中国辐射防护研究院 | 一种模拟蒸汽堵塞和腐蚀过滤器的装置和方法 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3624441A1 (de) * | 1986-07-19 | 1988-01-28 | Bosch Gmbh Robert | Diagnoseverfahren zur quantitativen ueberpruefung von stellgliedern bei brennkraftmaschinen |
| DE10003223A1 (de) * | 1999-02-25 | 2001-10-11 | Volkswagen Ag | Verfahren zum Prüfen eines Tankentlüftungssystems |
| WO2002018165A1 (fr) * | 2000-09-01 | 2002-03-07 | Robert Bosch Gmbh | Procede de diagnostic de la soupape de ventilation du reservoir a carburant |
| WO2003033901A1 (fr) * | 2001-10-11 | 2003-04-24 | Robert Bosch Gmbh | Procede de surveillance du bon fonctionnement d'une soupape d'evacuation d'air d'un systeme d'evacuation d'air de reservoir |
| DE10324813A1 (de) * | 2003-06-02 | 2005-01-05 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Tankentlüftungsventils |
| DE102005045434A1 (de) * | 2005-09-23 | 2007-03-29 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Tankentlüftungsventils |
| DE102005049068A1 (de) * | 2005-10-13 | 2007-04-19 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Tankentlüftungsventils |
| FR2900981A1 (fr) | 2006-05-12 | 2007-11-16 | Siemens Vdo Automotive Sas | Procede de diagnostic de fonctionnement d'un dispositif de purge d'un moteur |
| EP2199586A2 (fr) * | 2008-12-20 | 2010-06-23 | Audi AG | Méthode pour tester la fonction d'une soupape de ventilation de réservoir de carburant |
| DE102008063758A1 (de) * | 2008-12-19 | 2010-07-01 | Volkswagen Ag | Verfahren zum Prüfen eines Tankentlüftungssystems |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19523936A1 (de) * | 1995-06-30 | 1997-01-02 | Bosch Gmbh Robert | Pumpvorrichtung für ein Brennstoffverdunstungs-Rückhhaltesystem und Brennstoffverdunstungs-Rückhaltesystem |
| WO1999039094A2 (fr) * | 1998-01-28 | 1999-08-05 | Siemens Canada Limited | Circuit de commande pour systeme de detection de fuites de vapeur de carburant |
| JP3501020B2 (ja) | 1999-04-01 | 2004-02-23 | トヨタ自動車株式会社 | 蒸発燃料パージシステムの故障診断装置 |
| RU2166114C1 (ru) * | 1999-08-04 | 2001-04-27 | Открытое акционерное общество "АВТОВАЗ" | Клапан дозирования топливных паров для двигателя внутреннего сгорания транспортного средства |
| DE19942270A1 (de) * | 1999-09-04 | 2001-03-15 | Bosch Gmbh Robert | Verfahren zum Betreiben einer Brennkraftmaschine |
| US6363921B1 (en) * | 1999-09-09 | 2002-04-02 | Siemens Canada Limited | Vacuum leak verification system and method |
| DE10218830C1 (de) | 2002-04-26 | 2003-12-18 | Siemens Ag | Diagnosesystem und -verfahren für ein Ventil |
| JP2004301119A (ja) * | 2003-03-14 | 2004-10-28 | Honda Motor Co Ltd | 蒸発燃料処理装置の故障診断装置 |
| JP3923473B2 (ja) * | 2003-05-21 | 2007-05-30 | 本田技研工業株式会社 | 蒸発燃料処理装置の故障診断装置 |
| JP4134922B2 (ja) | 2004-03-08 | 2008-08-20 | トヨタ自動車株式会社 | 流路遮断装置およびそれを用いた燃料貯留装置 |
| FR2957981B1 (fr) * | 2010-03-24 | 2014-07-04 | Continental Automotive France | Procede et dispositif de detection de blocage de vanne de purge de filtre a vapeurs d'essence |
| FR2958691B1 (fr) * | 2010-04-13 | 2012-05-04 | Continental Automotive France | Procede et dispositif de diagnostic de vanne de purge pour vehicule a motorisation hybride. |
-
2010
- 2010-04-08 FR FR1001458A patent/FR2958690B1/fr active Active
-
2011
- 2011-04-05 KR KR1020127029375A patent/KR101856018B1/ko active Active
- 2011-04-05 BR BR112012025538-0A patent/BR112012025538B1/pt active IP Right Grant
- 2011-04-05 WO PCT/EP2011/001679 patent/WO2011124358A1/fr not_active Ceased
- 2011-04-05 RU RU2012147445/06A patent/RU2559211C2/ru active
- 2011-04-05 US US13/583,668 patent/US8943878B2/en active Active
- 2011-04-05 CN CN201180016918.XA patent/CN102834602B/zh active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3624441A1 (de) * | 1986-07-19 | 1988-01-28 | Bosch Gmbh Robert | Diagnoseverfahren zur quantitativen ueberpruefung von stellgliedern bei brennkraftmaschinen |
| DE10003223A1 (de) * | 1999-02-25 | 2001-10-11 | Volkswagen Ag | Verfahren zum Prüfen eines Tankentlüftungssystems |
| WO2002018165A1 (fr) * | 2000-09-01 | 2002-03-07 | Robert Bosch Gmbh | Procede de diagnostic de la soupape de ventilation du reservoir a carburant |
| WO2003033901A1 (fr) * | 2001-10-11 | 2003-04-24 | Robert Bosch Gmbh | Procede de surveillance du bon fonctionnement d'une soupape d'evacuation d'air d'un systeme d'evacuation d'air de reservoir |
| DE10324813A1 (de) * | 2003-06-02 | 2005-01-05 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Tankentlüftungsventils |
| DE102005045434A1 (de) * | 2005-09-23 | 2007-03-29 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Tankentlüftungsventils |
| DE102005049068A1 (de) * | 2005-10-13 | 2007-04-19 | Robert Bosch Gmbh | Verfahren zur Diagnose eines Tankentlüftungsventils |
| FR2900981A1 (fr) | 2006-05-12 | 2007-11-16 | Siemens Vdo Automotive Sas | Procede de diagnostic de fonctionnement d'un dispositif de purge d'un moteur |
| DE102008063758A1 (de) * | 2008-12-19 | 2010-07-01 | Volkswagen Ag | Verfahren zum Prüfen eines Tankentlüftungssystems |
| EP2199586A2 (fr) * | 2008-12-20 | 2010-06-23 | Audi AG | Méthode pour tester la fonction d'une soupape de ventilation de réservoir de carburant |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112012025538B1 (pt) | 2020-09-29 |
| CN102834602B (zh) | 2014-11-19 |
| RU2559211C2 (ru) | 2015-08-10 |
| KR20130038858A (ko) | 2013-04-18 |
| RU2012147445A (ru) | 2014-05-20 |
| KR101856018B1 (ko) | 2018-05-09 |
| US8943878B2 (en) | 2015-02-03 |
| FR2958690A1 (fr) | 2011-10-14 |
| FR2958690B1 (fr) | 2014-01-17 |
| BR112012025538A2 (pt) | 2016-06-21 |
| CN102834602A (zh) | 2012-12-19 |
| US20130000395A1 (en) | 2013-01-03 |
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