EP1339963A1 - Be- und entlüftungseinrichtung des kraftstoff-tankes eines verbrennungsmotors - Google Patents
Be- und entlüftungseinrichtung des kraftstoff-tankes eines verbrennungsmotorsInfo
- Publication number
- EP1339963A1 EP1339963A1 EP01995567A EP01995567A EP1339963A1 EP 1339963 A1 EP1339963 A1 EP 1339963A1 EP 01995567 A EP01995567 A EP 01995567A EP 01995567 A EP01995567 A EP 01995567A EP 1339963 A1 EP1339963 A1 EP 1339963A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- adsorption filter
- line
- purge air
- air
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 16
- 239000002828 fuel tank Substances 0.000 title claims abstract description 8
- 238000005273 aeration Methods 0.000 title abstract 2
- 238000001179 sorption measurement Methods 0.000 claims abstract description 31
- 238000011001 backwashing Methods 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract 2
- 238000010926 purge Methods 0.000 claims description 26
- 238000009423 ventilation Methods 0.000 claims description 11
- 239000004215 Carbon black (E152) Substances 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- 230000000977 initiatory effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
-
- 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
- Ventilation device of the fuel tank one
- the invention relates to a ventilation of the fuel tank of an internal combustion engine according to the preamble of claim 1.
- Such a device is known from DE 198 13 321 AI.
- the invention deals with the problem of being able to record the composition of the backwashing air more easily and, in particular, of being able to take account of any changes that occur during the backwashing operation.
- the volume flow and temperature should also be taken into account in the engine control.
- the invention is essentially based on the general idea of temporarily guiding an air flow in a circuit through the filling of the adsorption filter as a function of certain specifications, and in doing so to detect the loading state by means of a sensor fitted in the circuit.
- the regeneration of the adsorption filter by backwashing can take place in this way depending on the previously determined loading condition. If a loading state of the adsorption filter is ascertained in the circuit flow, in which regeneration by backwashing is desired or necessary, the same sensor, which has determined the loading state of the adsorption filter in the circuit flow, continuously detects the composition of the fluid led out of the circulation line , The fluid leaving the circuit line, that is to say the laden purge air, is fed in particular to the air intake area of the engine.
- the volume flow and the temperature of the backwash air can also be recorded. All of these recorded status data can be used for supplying the purge air into the air intake area of the engine for engine control in such a way that there is no influence on the combustion process that disturbs the exhaust gas composition during the time that the purge air is supplied to the combustion engine. process takes place.
- the last-mentioned measures, on the other hand, are not necessary in this form if the purge air is mixed directly with the engine exhaust, for example, as is possible in a manner known per se.
- the sensor with which the material and possibly flow and state properties of the purge air are detected can be integrated in an electronic device in which the acquired data is processed or processed for forwarding to a central engine control.
- This electronic device can be connected to the level as well as the sensors detecting the pressure within the tank, namely a pressure sensor and a level sensor.
- This separate electronic device may be part of the inventory ⁇ adsorption filter, whereby a simple hand ⁇ habbares adsorption filter module is created.
- Fig. 1 is a flow chart of a ventilation device of a fuel tank with a regenerable adsorption filter.
- a fuel tank 1 is connected to the atmosphere via a ventilation line 2 ⁇ , 2 ⁇ with the interposition of a dust filter 3. With the partial area 2 ⁇ , the ventilation line coming from the tank 1 opens into an adsorption filter 4 that can be backwashed for regeneration. The connection between this filter 4 and the atmosphere is formed by the area 2 ⁇ of the ventilation line.
- a purge air line 5 leads to the Ansaug Kunststoff Kunststoff Institute an internal combustion engine 6. From one of the ventilation duct 2 passage openings between the on and off ⁇ ⁇ , 2, ⁇ lie ⁇ constricting flow area branches a bypass line 7 to the purge air line 5, which opens into a 3/2-way valve 8. A sensor 9 and a feed pump 10 are located between the 3/2-way valve 8 and the adsorption filter 4.
- shut-off valves 11 and 12 are provided in each of the areas 2 and 2 of the loading and breather ⁇ tung line ⁇ .
- the sensor 9 can be connected to a fill level sensor 13 which detects the degree of filling of the tank 1 and a pressure sensor 14 which detects the pressure inside the tank.
- shut-off valves 11 and 12 are opened, so that the adsorption filter 4 can be flowed through in both directions for venting and venting.
- the device described makes it possible to make backwashing dependent on the degree of loading of the filter 4 with hydrocarbon.
- a circulating air flow is passed through the filter 4 according to certain specifications, which may be purely time-dependent, for example.
- the flow paths of the air circuit are given by the purge air line 5, the sensor 9, the feed pump 10, the 3/2-way valve 8, the return flow line 7 and a portion of the filling of the adsorption filter 4.
- the feed pump 10 is used to activate the circuit flow closed shut-off valves 11 and 12 turned on.
- the hydrocarbon loading of the filling of the adsorption filter 4 can be determined with the sensor 9.
- the backwashing is initiated in each case when a corresponding loading threshold value has been determined by the sensor 9.
- Backwashing is then initiated by switching the 3/2-way valve and opening the blocking valve 11 after the status data of the purge air measured in the sensor 9 have already been supplied to the central engine control.
- the status data of the scavenging air namely in particular the hydrocarbon fraction, the volume flow and the temperature, are fed by the sensor 9 to the central engine control system during the entire scavenging air operation, so that changes in status can be continuously taken into account in the engine control system. In this way, it is possible to completely prevent the purge air from interfering with the exhaust gas composition by taking into account the status data of the purge air during the purge air operation with the aid of the engine control.
- the backwashing of the adsorption filter 4 can also be made dependent on the degree of tank filling by coupling the fill level data of the tank 1 with the condition data of the purge air detected in the sensor 9 and jointly forwarding this data to the central engine control , It is possible, for example, to fundamentally backwash the filter 4 irrespective of its degree of loading, in each case at a certain degree of emptying of the tank 1. With the device described, it is also possible to carry out a leak test of the tank 1 and its feed and discharge lines, including the adsorption filter 4, by switching the 3/2-way valve to circulation, switching on the feed pump 10, closing the shutoff valve 11, and that Check valve 12 is open.
- the sensor 9 can be part of an electronic device which, in addition to receiving and further processing the status data from the purge air, also serves to record and further process the tank level and pressure data.
- This electronic device can be integrated in the housing of the filter 4 together with the valves 11 and 12 as well as the feed pump 8 and the 3/2-way valve. Extremely short lines 5 and 7 are thus also achieved by appropriate integration into the filter 4.
- the purge gas circulation according to the invention is also suitable for the case in which the loading state of the adsorption filter is to be measured only as a function of certain time and / or state data, in order to be able to determine the prerequisite for a necessary backflushing.
- a condition may exist in the pitch ⁇ in the exceeding of a predetermined load limit, wherein the backwashing is to take place.
- the backwashing air can continue in various ways. be slid, that means, for example, directly into the exhaust gas.
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)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10060350 | 2000-12-04 | ||
| DE10060350A DE10060350A1 (de) | 2000-12-04 | 2000-12-04 | Be- und Entlüftungseinrichtung des Kraftstoff-Tankes eines Verbrennungsmotors |
| PCT/DE2001/004553 WO2002046597A1 (de) | 2000-12-04 | 2001-12-01 | Be- und entlüftungseinrichtung des kraftstoff-tankes eines verbrennungsmotors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1339963A1 true EP1339963A1 (de) | 2003-09-03 |
| EP1339963B1 EP1339963B1 (de) | 2005-04-20 |
Family
ID=7665821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01995567A Expired - Lifetime EP1339963B1 (de) | 2000-12-04 | 2001-12-01 | Be- und entlüftungseinrichtung des kraftstoff-tankes eines verbrennungsmotors |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6729311B2 (de) |
| EP (1) | EP1339963B1 (de) |
| DE (2) | DE10060350A1 (de) |
| WO (1) | WO2002046597A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005012716A1 (en) * | 2003-07-25 | 2005-02-10 | Siemens Vdo Automotive Inc. | Integrated vapor control valve and sensor |
| DE102006002718B4 (de) * | 2006-01-19 | 2008-01-03 | Siemens Ag | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine |
| DE102008033058A1 (de) * | 2008-07-14 | 2010-02-04 | Continental Automotive Gmbh | Brennkraftmaschine und Verfahren zum Betreiben einer solchen Brennkraftmaschine |
| DE102010048313A1 (de) * | 2010-10-14 | 2012-04-19 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Betreiben eines Tankentlüftungssystems |
| JP6128074B2 (ja) * | 2014-07-29 | 2017-05-17 | トヨタ自動車株式会社 | キャニスタ |
| DE102017201530A1 (de) | 2017-01-31 | 2018-08-02 | Volkswagen Aktiengesellschaft | Tankentlüftungssystem für eine Verbrennungskraftmaschine und Verfahren zur Regenerierung eines Sorptionsspeichers |
| DE102017210768B4 (de) * | 2017-06-27 | 2019-11-21 | Continental Automotive Gmbh | Verfahren und Steuerungsvorrichtung zum Betreiben eines Tankentlüftungssystems einer Brennkraftmaschine |
| JP6869150B2 (ja) * | 2017-09-13 | 2021-05-12 | 日立Astemo株式会社 | 過給機付内燃機関の蒸発燃料処理装置 |
| FR3100840A1 (fr) * | 2019-09-12 | 2021-03-19 | Continental Automotive Gmbh | Détermination de la charge en hydrocarbures d’un filtre absorbant en boucle fermée |
| FR3100841A1 (fr) * | 2019-09-12 | 2021-03-19 | Continental Automotive Gmbh | Détermination de la charge en hydrocarbures d’un filtre absorbant en circuit ouvert |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4025544A1 (de) * | 1990-03-30 | 1991-10-02 | Bosch Gmbh Robert | Tankentlueftungsanlage fuer ein kraftfahrzeug und verfahren zum ueberpruefen deren funktionstuechtigkeit |
| JP2533350Y2 (ja) * | 1991-09-05 | 1997-04-23 | 本田技研工業株式会社 | 内燃エンジンの燃料蒸気排出抑止装置 |
| US5373822A (en) * | 1991-09-16 | 1994-12-20 | Ford Motor Company | Hydrocarbon vapor control system for an internal combustion engine |
| CA2077068C (en) | 1991-10-03 | 1997-03-25 | Ken Ogawa | Control system for internal combustion engines |
| FR2700506B1 (fr) | 1993-01-19 | 1995-03-10 | Siemens Automotive Sa | Dispositif de récupération de vapeurs issues d'un réservoir de carburant de véhicule automobile. |
| DE19509310C2 (de) * | 1995-03-15 | 2001-02-08 | Iav Motor Gmbh | Verfahren und Einrichtung zur Entlastung des Absorptionsspeichers einer Tankentlüftung bei Verbrennungsmotoren |
| US5596972A (en) | 1995-10-30 | 1997-01-28 | General Motors Corporation | Integrated fueling control |
| JPH09268952A (ja) | 1996-03-29 | 1997-10-14 | Suzuki Motor Corp | 内燃機関の蒸発燃料制御装置 |
| US5875765A (en) * | 1996-07-01 | 1999-03-02 | Norton; Peter | Fuel vapor source |
| DE19639116B4 (de) | 1996-09-24 | 2009-01-15 | Robert Bosch Gmbh | Tankentlüftungseinrichtung für Kraftfahrzeuge |
| DE19645382C2 (de) * | 1996-11-04 | 1998-10-08 | Daimler Benz Ag | Tankentlüftungsanlage für ein Fahrzeug mit Verbrennungsmotor |
| DE19650517C2 (de) * | 1996-12-05 | 2003-05-08 | Siemens Ag | Verfahren und Vorrichtung zur Tankentlüftung für eine direkteinspritzende Brennkraftmaschine |
| US5957113A (en) * | 1997-03-31 | 1999-09-28 | Nok Corporation | Fuel vapor recovery apparatus |
| DE19726559A1 (de) * | 1997-06-23 | 1998-12-24 | Bosch Gmbh Robert | Diagnosemodul |
| DE19813321B4 (de) | 1998-03-26 | 2011-09-01 | Mahle Filtersysteme Gmbh | Regenerierbares Filtermaterial enthaltende Adsorptionsfiltereinrichtung für die Be- und Entlüftung eines Kraftstofftanks eines Kraftfahrzeuges |
| US6237575B1 (en) * | 1999-04-08 | 2001-05-29 | Engelhard Corporation | Dynamic infrared sensor for automotive pre-vaporized fueling control |
| US6237574B1 (en) | 1999-04-20 | 2001-05-29 | Ford Motor Company | Evaporative emission canister for an automotive vehicle |
| DE19922302A1 (de) * | 1999-05-14 | 2000-11-16 | Fev Motorentech Gmbh | Kolbenbrennkraftmaschine mit Mitteln zur Unterdruckerzeugung, insbesondere zum Entlüften des Kraftstofftanks |
| GB2354800A (en) * | 1999-10-02 | 2001-04-04 | Ford Global Tech Inc | System for purging a vehicle fuel vapour canister |
| JP3659482B2 (ja) * | 2000-06-08 | 2005-06-15 | 日産自動車株式会社 | 燃料蒸気処理装置 |
-
2000
- 2000-12-04 DE DE10060350A patent/DE10060350A1/de not_active Withdrawn
-
2001
- 2001-12-01 US US10/182,809 patent/US6729311B2/en not_active Expired - Lifetime
- 2001-12-01 DE DE50105978T patent/DE50105978D1/de not_active Expired - Lifetime
- 2001-12-01 EP EP01995567A patent/EP1339963B1/de not_active Expired - Lifetime
- 2001-12-01 WO PCT/DE2001/004553 patent/WO2002046597A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0246597A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030000505A1 (en) | 2003-01-02 |
| DE50105978D1 (de) | 2005-05-25 |
| WO2002046597A1 (de) | 2002-06-13 |
| US6729311B2 (en) | 2004-05-04 |
| EP1339963B1 (de) | 2005-04-20 |
| DE10060350A1 (de) | 2002-06-06 |
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