EP1377741A1 - Unite de detection de fuite de reservoir chauffante, notamment pour automobiles - Google Patents

Unite de detection de fuite de reservoir chauffante, notamment pour automobiles

Info

Publication number
EP1377741A1
EP1377741A1 EP02735018A EP02735018A EP1377741A1 EP 1377741 A1 EP1377741 A1 EP 1377741A1 EP 02735018 A EP02735018 A EP 02735018A EP 02735018 A EP02735018 A EP 02735018A EP 1377741 A1 EP1377741 A1 EP 1377741A1
Authority
EP
European Patent Office
Prior art keywords
pressure source
leak
container
determined
valve
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.)
Granted
Application number
EP02735018A
Other languages
German (de)
English (en)
Other versions
EP1377741B1 (fr
Inventor
Wolfgang Schulz
Martin Maier
Manfred Zimmermann
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 EP1377741A1 publication Critical patent/EP1377741A1/fr
Application granted granted Critical
Publication of EP1377741B1 publication Critical patent/EP1377741B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02M25/0818—Judging failure of purge control system having means for pressurising the evaporative emission space
    • 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

Definitions

  • Heated tank leak diagnosis unit in particular for motor vehicles
  • the invention relates to a method and a device for testing the functionality of a container, in particular a tank ventilation system of a motor vehicle, according to the preambles of the respective independent claims.
  • containers In various areas of technology, containers must be checked regularly for leaks. In chemical process engineering, for example, liquid or gas containers or in the automotive technology tank systems tested accordingly.
  • Such a method for leak testing a tank ventilation system of a motor vehicle is known for example from DE 196 36 431.0.
  • the tank ventilation system is pressurized and, if necessary, the presence of a leak is concluded by subsequently evaluating the pressure curve.
  • the invention is based on the finding that moisture or even liquid, for example condensate, can become lodged in the vane pump, particularly in vehicle operation. This results in a considerable falsification of the pump current determined in each case and there is an error detection of the degree of tightness.
  • the object of the present invention is therefore to improve a method or a device mentioned at the outset in such a way that the abovementioned disadvantages of the prior art, ie the misdiagnoses mentioned due to the storage or accumulation of moisture in the pressure source, are avoided.
  • the object is achieved by the features of the independent claims. Advantageous refinements are set out in the dependent claims.
  • the special feature of the invention is that at least the pressure source is heated at least temporarily.
  • the heating of the pressure source or the entire diagnostic device in particular ensures that any moisture that may be present is removed or even prevented that moisture, for example in the form of condensate, can be deposited at all on a cold pressure source.
  • said heating takes place by means of an ohmic resistor, in particular a negative temperature coefficient (NTC) resistor.
  • the resistor preferably has a heating power in the range of 4 watts. This output results in suitable heating times, so that the heating can preferably only be carried out shortly before a diagnostic and / or reference (leak) measurement is carried out, as a result of which considerable energy savings are made.
  • NTC resistor has the additional advantage that it can also be used in an energy-saving manner due to the negative temperature coefficient at an already elevated temperature due to the falling electrical resistance.
  • An alternative embodiment provides that the heating by suitable electrical control of the Switchover valve takes place. It can either be provided that the changeover valve is controlled with a frequency or a pulse duty factor, the control being carried out in such a way that the changeover valve does not yet transition to the operating state.
  • the use of the changeover valve itself for heating has the advantages that, in a cost-saving manner, only components that already exist in a diagnostic unit can be used. Because it is only necessary to adapt the control of the changeover valve, for example a simple program adjustment. Compared to the first alternative, additional costs for an additional component (NTC resistor), for necessary electrical connections and for an additional output stage are saved in one control unit.
  • the heating advantageously takes place during vehicle operation, but outside of any diagnostic or reference (leak) measurement that may have been carried out.
  • the heating begins with a predefinable time difference before the start of a diagnostic or reference measurement.
  • moisture and / or liquid enters the pressure source by means of a check valve arranged at the inlet of the pressure source.
  • the check valve can advantageously be accommodated in the connection part of the pressure source.
  • the invention further relates to a diagnostic unit that can be connected or installed in a motor vehicle or another system that has a container affected here and that preferably has the means mentioned for heating the pressure source or the entire diagnostic unit.
  • the single figure shows a tank ventilation system, in which a method or a device making use of the invention are used.
  • the tank ventilation system shown schematically in the figure comprises a tank 10 which is connected to an activated carbon filter 14 via a tank connection line 12.
  • a suction pipe 16 of an internal combustion engine (not shown) is connected to the tank 10, likewise via the activated carbon filter 14, by means of an intake line 18 and via a tank ventilation valve 20.
  • volatile hydrocarbon vapors are formed in the tank, which pass through the line 12 into the activated carbon filter 14 and are reversibly bound in a known manner.
  • a control unit (not shown) temporarily opening the tank ventilation valve 20 and a correspondingly controlled changeover valve 32, fresh air 22 is now sucked in from the environment through the activated carbon filter 14, with stored fuel being released into the sucked-in air and the activated carbon filter 14 regenerating itself.
  • a passive filter 24 is provided, which connects the system or a line 26, 26 'upstream of the activated carbon filter 14 with ambient air from the surroundings of the vehicle.
  • a leak diagnosis unit 28 connected to the activated carbon filter 14 is provided.
  • the diagnostic unit 28 shown has a vane pump 30 controlled by means of a control unit (not shown). It goes without saying that the vane pump 30 represents only one preferred type of pump and may be interchangeable with another type of pump, such as a diaphragm pump or the like.
  • a switch valve 32 for example a 3/2-way valve, is connected upstream of the pump 30.
  • a reference leak 36 is introduced into a separate line branch 34 arranged parallel to the changeover valve 32.
  • the reference leak 36 is opened or closed by means of a magnetic slide valve 38.
  • the respective dimensioning of the reference leak 36 is chosen such that it corresponds to the size of the leak to be detected. In the case of the US standard mentioned at the outset, the reference leak 36 accordingly has an opening cross section of approximately 0.5 mm.
  • the changeover valve 32 has two switching positions. In the first position, namely when the reference leak 36 is closed, the pump 30 is connected to the tank 10 in a pressure-conducting manner via the activated carbon filter 14 and thus pumps outside air 22 into the tank 10. An overpressure of approximately 30 hPa is thus generated in the tank 10. While the fresh air 22 is being pumped into the tank 10, one of two diagnostic stages, the resulting electrical pump current (diagnostic current) is continuously recorded and temporarily stored for later evaluation. It should be noted that in the first position of the changeover valve 32, instead of a tank diagnosis, the regeneration of the activated carbon filter 14 described above can also be carried out, with the tank ventilation valve open at the same time.
  • the changeover valve 32 is completely closed, so that when the reference leak 36 is opened by means of the magnetic slide valve 38, the resulting pump current (reference flow) is again recorded and also temporarily stored.
  • the diagnostic unit 28 also has a computer module (not shown) for evaluating the time profile of the respectively detected values of the pump current. Since this can be a conventional microcontroller or processor, we will not go into this here. Usually, the value at which the time gradient of the pump current exceeds a predeterminable value is taken as the measured value in the evaluation.
  • the ratio of diagnostic current to reference current can also be used to conclude that there is a leak in the tank 10.
  • An NTC (negative temperature coefficient) resistor 40 with a heating power of approximately 4 watts is arranged in the housing of the diagnostic unit 28 shown.
  • the NTC operated by means of a voltage supply 42 is used in the form of a heating coil or the like as a heater in order to heat the entire diagnostic unit 28 and thus to remove any moisture that may be present or to prevent the separation of moisture in the diagnostic unit 28 and / or the pump 30 in advance.
  • NTC 40 shown for heating the diagnostic unit 28 is only one exemplary embodiment.
  • the pump 30 is locally heated in an energy-saving manner.
  • the heating takes place by means of the changeover valve 32 which is already present, specifically by means of suitable control procedures.
  • the previously described NTC resistor 40 can be omitted.
  • the switching valve 32 is during normal operation of the vehicle, i.e. when the diagnostic unit 28 is not in operation or the diagnostic measurement is not carried out, de-energized "open".
  • the valve 32 is opened accordingly at least in the regeneration operation mentioned and when the reference leak measurement is carried out.
  • the procedure consists in switching the changeover valve 32 with a frequency or a duty cycle to control that a valve plate (not shown) arranged in the changeover valve 32 does not move or moves very little.
  • the changeover valve 32 or a coil (not shown) arranged in the valve is actuated with a voltage which is below the actual operating voltage of the valve 32 in such a way that the valve plate just barely moves.
  • the entry of moisture into the pump 30 is prevented or at least made more difficult by the fact that a check valve (RV) 44 is arranged at the input of the pump 30.
  • RV check valve
  • the pump part 30 of the diagnostic unit 28 is protected against the ingress of moisture by means of the RV 44.
  • the RV 44 is designed so that it opens when the pump 30 is in operation without large pressure losses.

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)
  • Examining Or Testing Airtightness (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de contrôler l'étanchéité d'un récipient (10), notamment d'une installation de ventilation de réservoir d'automobile, ledit récipient (10) étant sollicité par une pression produite au moyen d'une source de pression (30) actionnée par moteur, le courant du moteur étant déterminé par la même occasion. Une fuite de référence (36) pouvant être actionnée au choix par une soupape d'inversion (32) est sollicitée par une pression correspondante et le courant du moteur est également déterminé à cette occasion. La grandeur caractéristique électrique déterminée et la grandeur caractéristique de référence déterminée sont comparées et sur la base des résultats obtenus, la présence d'une fuite est établie. Afin d'éviter toute pénétration d'humidité dans la source de pression (30),il est prévu qu'au moins la source de pression (30) soit chauffée au moins par intermittence. Le chauffage s'effectue de préférence avec un rapport de test approprié. Afin d'éviter toute pénétration d'humidité dans la source de pression (30), il est prévu un clapet antiretour (44) monté intégré dans la partie de connexion de la source de pression (30).
EP02735018A 2001-04-04 2002-03-27 Unite de detection de fuite de reservoir chauffante, notamment pour automobiles Expired - Lifetime EP1377741B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10116693 2001-04-04
DE10116693A DE10116693A1 (de) 2001-04-04 2001-04-04 Beheizbare Tankleckdiagnoseeinheit insbesondere für Kraftfahrzeuge
PCT/DE2002/001108 WO2002081898A1 (fr) 2001-04-04 2002-03-27 Unite de detection de fuite de reservoir chauffante, notamment pour automobiles

Publications (2)

Publication Number Publication Date
EP1377741A1 true EP1377741A1 (fr) 2004-01-07
EP1377741B1 EP1377741B1 (fr) 2007-01-10

Family

ID=7680298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02735018A Expired - Lifetime EP1377741B1 (fr) 2001-04-04 2002-03-27 Unite de detection de fuite de reservoir chauffante, notamment pour automobiles

Country Status (5)

Country Link
US (1) US6959587B2 (fr)
EP (1) EP1377741B1 (fr)
JP (1) JP4342180B2 (fr)
DE (2) DE10116693A1 (fr)
WO (1) WO2002081898A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136183A1 (de) * 2001-07-25 2003-02-20 Bosch Gmbh Robert Verfahren und Steuergerät zur Funktionsdiagnose eines Tankentlüftungsventils einer Brennstofftankanlage insbesondere eines Kraftfahrzeuges
JP4344995B2 (ja) * 2003-08-25 2009-10-14 株式会社デンソー 燃料蒸気漏れ検査モジュール
JP2007218161A (ja) * 2006-02-16 2007-08-30 Denso Corp ベーン式ポンプ装置およびそれを用いたリークチェックシステム
DE102009048134B4 (de) * 2009-10-02 2016-03-24 Audi Ag Filtereinrichtung, Kraftfahrzeug und Verfahren zum Betreiben einer Filtereinrichtung
EP2333291B1 (fr) * 2009-11-30 2014-01-08 Ford Global Technologies, LLC Réservoir de carburant
DE102010064240A1 (de) * 2010-12-28 2012-06-28 Robert Bosch Gmbh Vorrichtung zum wahlweisen Regenerieren oder Durchführen einer Tankleckdiagnose eines Tankentlüftungssystems
US8560167B2 (en) 2011-02-18 2013-10-15 Ford Global Technologies, Llc System and method for performing evaporative leak diagnostics in a vehicle
DE102011014713B4 (de) * 2011-03-23 2016-05-19 Audi Ag Tankentlüftungsvorrichtung für ein Kraftfahrzeug
WO2013143675A1 (fr) 2012-03-24 2013-10-03 Audi Ag Procédé pour faire fonctionner un système de réservoir, et système de réservoir correspondant
DE102012005996A1 (de) * 2012-03-24 2013-10-10 Audi Ag Verfahren zum Betreiben einer Tankeinrichtung sowie entsprechende Tankeinrichtung
JP5582367B2 (ja) * 2012-07-25 2014-09-03 株式会社デンソー 蒸発燃料処理装置
DE102016225001A1 (de) * 2016-12-14 2018-06-14 Volkswagen Aktiengesellschaft Tankentlüftungsanlage für ein Kraftfahrzeug sowie Kraftfahrzeug und Verfahren zum Betreiben einer Tankentlüftungsanlage
DE102018119829A1 (de) * 2018-08-15 2020-02-20 Volkswagen Aktiengesellschaft Tankentlüftungsvorrichtung für einen Kraftstofftank sowie Fahrzeug
DE102022110335B3 (de) 2022-04-28 2023-06-01 Thomas Magnete Gmbh Leckagediagnosesystem und Verfahren für eine Funktionsdiagnose eines Leckagediagnosesystems

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647215A (en) * 1951-08-18 1953-07-28 Westinghouse Electric Corp Space heating means for dynamo-electric machines
US3445743A (en) 1966-08-10 1969-05-20 M & B Electric Co Inc Electric motor heating unit
JPS5697713A (en) * 1980-10-22 1981-08-06 Mitsubishi Electric Corp Vaporizing liquid fuel combustor
US5088466A (en) * 1990-07-06 1992-02-18 Mitsubishi Denki K.K. Evaporated fuel gas purging system
IT1254854B (it) * 1992-03-30 1995-10-11 Whirlpool Italia Metodo e dispositivo per rilevare la formazione di brina su un evaporatore di un refrigeratore, in particolare del tipo a circolazione forzata d'aria
FR2693869B1 (fr) 1992-07-17 1994-09-23 Solex Module thermorésistif, dispositif de chauffage le comportant, et son application au réchauffage de dispositifs de commande de débit pour installations d'alimentation de moteurs à combustion interne.
DE4326264A1 (de) * 1993-08-05 1995-02-09 Leybold Ag Testgasdetektor mit Vakuumpumpe sowie Verfahren zum Betrieb eines Testgasdetektors dieser Art
DE4447145B4 (de) * 1994-12-29 2005-06-02 Hilti Ag Verfahren und Einrichtung zur Temperaturüberwachung bei Universalmotoren
DE19636431B4 (de) * 1996-09-07 2009-05-14 Robert Bosch Gmbh Verfahren und Vorrichtung zur Prüfung der Funktionsfähigkeit einer Tankentlüftungsanlage
GB2339291B (en) * 1997-08-16 2000-05-03 Bosch Gmbh Robert Ventilated liquid storage installation with ventilation integrity checking
DE19735549B4 (de) * 1997-08-16 2008-02-14 Robert Bosch Gmbh Vorrichtung zur Diagnose einer Tankentlüftungsanlage eines Fahrzeugs
US5974861A (en) * 1997-10-31 1999-11-02 Siemens Canada Limited Vapor leak detection module having a shared electromagnet coil for operating both pump and vent valve
DE19836967C2 (de) * 1998-08-14 2000-06-29 Bosch Gmbh Robert Verfahren zur Prüfung der Funktionsfähigkeit eines Behältnisses
DE10006186C1 (de) * 2000-02-11 2001-06-13 Bosch Gmbh Robert Verfahren zur Dichtheitsprüfung eines Tanksystems eines Fahrzeugs
DE10018441B4 (de) * 2000-04-13 2005-12-29 Robert Bosch Gmbh Verfahren und Vorrichtung zur umweltschonenden Dichtheitsprüfung eines Behältnisses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02081898A1 *

Also Published As

Publication number Publication date
US20040129066A1 (en) 2004-07-08
WO2002081898A1 (fr) 2002-10-17
DE50209230D1 (de) 2007-02-22
DE10116693A1 (de) 2002-10-17
JP2004523690A (ja) 2004-08-05
EP1377741B1 (fr) 2007-01-10
US6959587B2 (en) 2005-11-01
JP4342180B2 (ja) 2009-10-14

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