EP3049664B1 - Tank ventilation device, motor vehicle, method for controlling the fuel mixture composition and control system therefor - Google Patents
Tank ventilation device, motor vehicle, method for controlling the fuel mixture composition and control system therefor Download PDFInfo
- Publication number
- EP3049664B1 EP3049664B1 EP14753088.5A EP14753088A EP3049664B1 EP 3049664 B1 EP3049664 B1 EP 3049664B1 EP 14753088 A EP14753088 A EP 14753088A EP 3049664 B1 EP3049664 B1 EP 3049664B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- tank
- line
- internal combustion
- combustion engine
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims description 140
- 239000000203 mixture Substances 0.000 title claims description 38
- 238000000034 method Methods 0.000 title claims description 31
- 238000009423 ventilation Methods 0.000 title claims description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 60
- 238000002485 combustion reaction Methods 0.000 claims description 33
- 239000002828 fuel tank Substances 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 29
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims 6
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000013022 venting Methods 0.000 description 30
- 238000010926 purge Methods 0.000 description 24
- 230000008569 process Effects 0.000 description 17
- 238000001179 sorption measurement Methods 0.000 description 13
- 238000011068 loading method Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 230000008929 regeneration Effects 0.000 description 6
- 238000011069 regeneration method Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 239000003463 adsorbent Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
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
- F02M25/0854—Details of the absorption canister
-
- 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
- F02M2025/0881—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 with means to heat or cool the canister
Definitions
- the present invention relates to a method for controlling a fuel mixture composition for an internal combustion engine.
- Tank ventilation devices are known in different embodiments from the prior art.
- tank venting devices are disposed between an internal combustion engine and a fuel tank and include a fuel reservoir containing an activated carbon bed.
- the activated carbon bed is provided to receive from the fuel tank, in particular by temperature and / or pressure, in the fuel storage overflowing fuel and store.
- Corresponding sensors provided in the activated carbon bed indicate when the activated carbon bed is saturated with fuel. If this is the case, a venting is initiated and the fuel storage with flushing gas, in particular fresh air from the environment, rinsed. The thereby expelled from the activated carbon bed fuel is supplied in the form of a fuel-air mixture of the internal combustion engine for fuel combustion.
- a disadvantage of conventional tank ventilation devices is that any disturbances during the venting process, such as an additional violation of fuel from the fuel tank, in the mixture control for the fuel combustion can not be considered. Rather, a readjustment of the mixture composition of fuel and fresh air can only be done after passing the exhaust gas of the internal combustion engine to a lambda probe in the exhaust path, by means of which the current quality of the fuel mixture is determined. This leads to engine speed fluctuations, a loss of purge gas for the Activated carbon bed regeneration and thus to an erratic performance of the internal combustion engine.
- US 2013/133629 A1 describes a method for cooling an adsorber material in a housing of an adsorber vessel in a vehicle.
- the method here comprises a step of determining whether a fuel supply is open or closed and a step of cooling the adsorber material if the fuel supply is open.
- US 2013/055899 A1 describes a fuel vapor processing apparatus that includes a latent heat storage material that releases latent heat during desorption of fuel vapor from an adsorbent material.
- US 2012/260893 A1 describes a fuel vapor processing apparatus having a housing that includes an adsorption chamber, wherein an adsorption material is disposed in the adsorption chamber.
- the fuel vapor processing apparatus further includes a heater capable of heating the adsorbent material and a passage member communicating with the adsorption chamber and the atmosphere.
- the passage member defines a flow space that faces an outer peripheral surface of the housing so that heat can be transferred between the adsorption chamber and the flow space.
- US 2004/094132 A1 discloses an evaporative fuel processing apparatus capable of increasing a scavenging efficiency by heating a part of activated carbon which can be heated more effectively and also hinders an increase in the temperature of the activated carbon to prevent a deterioration of the adsorption performance and the power consumption Increase the temperature to reduce.
- heating devices are arranged almost at the midpoints of Adsorptionsmaterial Anlagenen in a canister to heat an adsorbent for a predetermined time before the start of rinsing. The heating is stopped during rinsing, so that a temperature increase of the Adsorption material can be prevented, whereby a deterioration of the adsorption performance at the time of adsorption of evaporative fuel is prevented.
- US 2002/162457 A1 describes a fuel vapor handling apparatus that directs purge air to a canister using a purge pump and flushes from a canister of desorbed fuel into an intake manifold.
- a controller intermittently activates the purge so that the internal temperature of the canister recovers from a reduced level caused by the latent heat of vaporization of fuel during an operating time of the purge pump. Therefore, the desorption of fuel from the canister during an operating time is facilitated. Since the actual operation time of the purge pump is reduced, the life of a motor, which is a drive unit of the purge pump, is prolonged.
- DE 41 26 880 A1 discloses a tank ventilation system with an adsorption filter, with a connecting line from the suction side of the filter to the intake manifold of an internal combustion engine, with a connecting line to the tank and with a ventilation opening; a tank vent valve connected in the communication line, a temperature sensor in the adsorbent material for measuring temperature changes thereof due to adsorption and desorption, and control means for controlling the tank vent valve and judging the operability of the tank vent system by evaluating signals of the temperature sensor.
- vent line comprises a vent valve, by means of which a quantity of purge gas for purging the fuel accumulator during the venting process is selectively controllable.
- the vent line comprises a tank vent valve.
- thermocouple is arranged in the activated carbon bed of the fuel storage, so that a possible increase in temperature by an approaching load front can be detected safer and more accurate.
- the tank ventilation device further comprises at least one further thermocouple or at least one temperature sensor, which is arranged outside the direct flow path of the fuel between the fuel line and the vent line.
- motor vehicle comprising a tank venting device as set forth above.
- the motor vehicle is characterized by the piloted Fuel mixture formation through stable engine speeds and thus due to a high level of ride comfort and good driving dynamics. An odor risk due to escaping fuel is minimized. Legally prescribed limits for fuel emission are reliably met.
- the temperature T 1 (or temperatures T n ) certainly.
- the advantageous development of the method provides that, depending on a level of the temperature T 1 at time 1 more purge gas is passed through the fuel tank or an opening degree of the vent valve is reduced.
- a temperature increase reflects the size of the fuel loading front from the fuel tank, even more efficient fuel mixture formation can be achieved.
- control device in particular in a motor vehicle, which is suitable for carrying out a method as set out above.
- a method as set out above As a result, an optimized fuel mixture control can be carried out in a simple manner during a venting process of the fuel accumulator.
- FIG. 1 1 shows a tank ventilation device 10.
- the tank ventilation device 10 is hereby introduced between a fuel tank 1 and an internal combustion engine 3 and comprises a fuel reservoir 2 with an activated carbon bed for storing fuel, which is connected to the fuel tank 1 through a fuel line 4.
- Fuel tank 2 is connected on the opposite side of the fuel tank 1 with an internal combustion engine 3 through a vent line 5.
- the vent line 5 also includes a tank vent valve 7, by means of which an influx of fuel from the fuel tank 1 and / or the fuel reservoir 2 can be controlled.
- To the fuel tank 2 further includes a vent line 9, by means of the purge gas, ie in particular air from the environment of the tank venting device 10, can be introduced into the fuel tank 2.
- the introduction of purge gas and preferably also the amount of purge gas introduced can be regulated via the existing in the vent line 9 vent valve.
- thermocouple 8 is introduced, which is preferably arranged in the activated carbon bed of the fuel reservoir 2.
- vent valve 6 and the tank vent valve 7 are opened, so that the vent line 5 between the fuel reservoir 2 and the internal combustion engine 3 is opened.
- purge gas absorbs the fuel present in the fuel accumulator and supplies it to the combustion in the internal combustion engine 3, which leads to a regeneration of the activated carbon bed.
- thermocouple 8 is provided, which is arranged in the direct flow path 11 between the fuel line 4 and the vent line 5, a region in which the loading front passes directly upon entry into the fuel storage. While gaseous fuel entering in vapor form, for example outside the venting process, is evenly distributed throughout the fuel reservoir 2 by absorption and diffusion processes, a loading front only passes into the direct flow path 11 during the venting process, from which it is also removed by the sweeping flushing gas becomes. First, however, the presence of this loading front by a temperature increase in the direct flow path 11 is measurable. By comparison with reference data, for example, an accurate amount of fuel in the loading front can be determined.
- thermocouple 8 if a higher temperature is measured by the thermocouple 8 in comparison to before the beginning of the venting process, by supplying more purge gas through the vent line 9 and / or by throttling the tank vent valve 7, a fuel mixture composition adapted to the needs of the internal combustion engine can be set. This usually leads to an increased flow of purge gas, which prevents odor nuisance after fuel and legally prescribed limits for fuel emission can be more easily met. An engine speed of the internal combustion engine 3 is thus stable.
- FIG. 2 shows one to the tank ventilation device 10 from FIG. 1 alternative embodiment.
- the vent line 5 and the fuel line 4 are provided on adjacent sides of the fuel reservoir 2 and are thus arranged orthogonally. This results in a changed direct flow path 11 between the fuel line 4 and the vent line fifth
- thermocouple 8 is arranged in the direct flow path 11, in turn, a thermocouple 8 is arranged.
- a temperature sensor 12 is provided in the activated carbon bed outside the direct flow path 11, by means of which a loading state of the activated carbon bed in the fuel storage 2 can be determined before the initiation of the venting process.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Steuerung einer Kraftstoffgemischzusammensetzung für eine Verbrennungskraftmaschine.The present invention relates to a method for controlling a fuel mixture composition for an internal combustion engine.
Tankentlüftungsvorrichtungen sind in unterschiedlicher Ausführung aus dem Stand der Technik bekannt. Üblicherweise sind Tankentlüftungsvorrichtungen zwischen einer Verbrennungskraftmaschine und einem Kraftstofftank angeordnet und umfassen einen Kraftstoffspeicher, der ein Aktivkohlebett enthält. Das Aktivkohlebett ist vorgesehen, aus dem Kraftstofftank, insbesondere durch Temperatur- und/oder Druckeinwirkung, in den Kraftstoffspeicher übertretenden Kraftstoff aufzunehmen und zu speichern. Entsprechende im Aktivkohlebett vorgesehene Sensoren zeigen an, wann das Aktivkohlebett mit Kraftstoff gesättigt ist. Ist dies der Fall, wird eine Entlüftung eingeleitet und der Kraftstoffspeicher mit Spülgas, insbesondere Frischluft aus der Umgebung, gespült. Der dabei aus dem Aktivkohlebett ausgetriebene Kraftstoff wird in Form eines Kraftstoff-Luft-Gemisches der Verbrennungskraftmaschine zur Kraftstoffverbrennung zugeführt.Tank ventilation devices are known in different embodiments from the prior art. Typically, tank venting devices are disposed between an internal combustion engine and a fuel tank and include a fuel reservoir containing an activated carbon bed. The activated carbon bed is provided to receive from the fuel tank, in particular by temperature and / or pressure, in the fuel storage overflowing fuel and store. Corresponding sensors provided in the activated carbon bed indicate when the activated carbon bed is saturated with fuel. If this is the case, a venting is initiated and the fuel storage with flushing gas, in particular fresh air from the environment, rinsed. The thereby expelled from the activated carbon bed fuel is supplied in the form of a fuel-air mixture of the internal combustion engine for fuel combustion.
Nachteilig an herkömmlichen Tankentlüftungsvorrichtungen ist, dass etwaige Störgrößen während des Entlüftungsvorganges, beispielsweise ein zusätzliches Übertreten von Kraftstoff aus dem Kraftstofftank, bei der Gemischsteuerung für die Kraftstoffverbrennung nicht berücksichtigt werden können. Vielmehr kann eine Nachregelung der Gemischzusammensetzung aus Kraftstoff und Frischluft erst nach Passieren des Abgases der Verbrennungskraftmaschine an einer Lambdasonde im Abgaspfad erfolgen, mittels der die aktuelle Qualität des Kraftstoffgemisches ermittelt wird. Dies führt zu Motordrehzahlschwankungen, einem Verlust von Spülgas für die Aktivkohlebettregenerierung und damit zu einer unsteten Leistung der Verbrennungskraftmaschine.A disadvantage of conventional tank ventilation devices is that any disturbances during the venting process, such as an additional violation of fuel from the fuel tank, in the mixture control for the fuel combustion can not be considered. Rather, a readjustment of the mixture composition of fuel and fresh air can only be done after passing the exhaust gas of the internal combustion engine to a lambda probe in the exhaust path, by means of which the current quality of the fuel mixture is determined. This leads to engine speed fluctuations, a loss of purge gas for the Activated carbon bed regeneration and thus to an erratic performance of the internal combustion engine.
Ausgehend von diesem Stand der Technik ist es daher Aufgabe der vorliegenden Erfindung ein Verfahren zur Steuerung einer Kraftstoffgemischzusammensetzung für eine Verbrennungskraftmaschine anzugeben, mittels dessen Motordrehzahlschwankungen im Entlüftungsbetrieb eines Kraftstoffspeichers verhindert sowie eine Kraftstoffgemischbildung optimiert werden können.Based on this prior art, it is therefore an object of the present invention to provide a method for controlling a fuel mixture composition for an internal combustion engine, by means of which engine speed fluctuations in the bleeding mode of a fuel storage can be prevented and a fuel mixture formation can be optimized.
Ferner beschrieben, aber nicht Teil der vorliegenden Erfindung ist eine Tankentlüftungsvorrichtung zum Einbringen zwischen einen Kraftstofftank und eine Verbrennungskraftmaschine, wobei die Tankentlüftungsvorrichtung
- einen Kraftstoffspeicher mit einem Aktivkohlebett zum Speichern von Kraftstoff,
- eine Belüftungsleitung zum Zuführen von Spülgas in den Kraftstoffspeicher,
- eine Kraftstoffleitung zum Transport von Kraftstoff aus einem an die Tankentlüftungsvorrichtung angeschlossenen Kraftstofftank in den Kraftstoffspeicher und
- eine Entlüftungsleitung zum Transport von Gasen aus dem Kraftstoffspeicher zu einer Verbrennungskraftmaschine,
- a fuel reservoir with an activated carbon bed for storing fuel,
- a vent line for supplying purge gas into the fuel reservoir,
- a fuel line for transporting fuel from a fuel tank connected to the tank venting device into the fuel reservoir and;
- a vent line for transporting gases from the fuel storage to an internal combustion engine,
Ferner beschrieben, aber nicht Teil der vorliegenden Erfindung ist eine Ausgestaltung, in der die Belüftungsleitung ein Belüftungsventil umfasst, mittels dessen eine Menge an Spülgas zum Spülen des Kraftstoffspeichers während des Entlüftungsvorganges gezielt steuerbar ist.Further described, but not part of the present invention is an embodiment in which the vent line comprises a vent valve, by means of which a quantity of purge gas for purging the fuel accumulator during the venting process is selectively controllable.
Zur einfacheren Steuerung des der Verbrennungskraftmaschine zuzuführenden Kraftstoffgemisches aus dem Kraftstoffspeicher, umfasst die Entlüftungsleitung ein Tankentlüftungsventil.For easier control of the internal combustion engine to be supplied fuel mixture from the fuel tank, the vent line comprises a tank vent valve.
Weiter vorteilhaft ist das Thermoelement im Aktivkohlebett des Kraftstoffspeichers angeordnet, so dass eine etwaige Temperaturerhöhung durch eine nahende Beladungsfront sicherer und genauer detektiert werden kann.Further advantageously, the thermocouple is arranged in the activated carbon bed of the fuel storage, so that a possible increase in temperature by an approaching load front can be detected safer and more accurate.
Zur Bestimmung des Beladungszustandes des Kraftstoffspeichers, also den Gehalt an Kraftstoff im Aktivkohlebett vor dem Entlüftungsvorgang, umfasst die Tankentlüftungsvorrichtung ferner mindestens ein weiteres Thermoelement oder mindestens einen Temperatursensor, der außerhalb des direkten Strömungswegs des Kraftstoffes zwischen der Kraftstoffleitung und der Entlüftungsleitung angeordnet ist.To determine the loading state of the fuel storage, ie the content of fuel in the activated carbon bed before the venting process, the tank ventilation device further comprises at least one further thermocouple or at least one temperature sensor, which is arranged outside the direct flow path of the fuel between the fuel line and the vent line.
Ferner beschrieben aber nicht Teil der vorliegenden Erfindung ist auch ein Kraftfahrzeug, das eine wie vorstehend dargelegte Tankentlüftungsvorrichtung umfasst. Das Kraftfahrzeug zeichnet sich aufgrund der vorgesteuerten Kraftstoffgemischbildung durch stabile Motordrehzahlen und dadurch bedingt durch einen hohen Fahrkomfort und eine gute Fahrdynamik aus. Ein Geruchsrisiko aufgrund austretenden Kraftstoffes wird minimiert. Gesetzlich vorgegebene Grenzwerte für eine Kraftstoffemission werden zuverlässig eingehalten.Further described but not part of the present invention is also a motor vehicle comprising a tank venting device as set forth above. The motor vehicle is characterized by the piloted Fuel mixture formation through stable engine speeds and thus due to a high level of ride comfort and good driving dynamics. An odor risk due to escaping fuel is minimized. Legally prescribed limits for fuel emission are reliably met.
Die für die Tankentlüftungsvorrichtung beschriebenen vorteilhaften Effekte, Vorteile und Ausgestaltungen finden auch Anwendung auf das Kraftfahrzeug.The advantageous effects, advantages and embodiments described for the tank ventilation device are also applied to the motor vehicle.
Erfindungsgemäß wird ein Verfahren zur Steuerung einer Kraftstoffgemischzusammensetzung für eine Verbrennungskraftmaschine mit einer Tankentlüftungsvorrichtung beim Belüften bzw. Entlüften eines Kraftstoffspeichers beschrieben. Die Tankentlüftungsvorrichtung ist zwischen einen Kraftstofftank und eine Verbrennungskraftmaschine eingebracht und umfasst
- einen Kraftstoffspeicher mit einem Aktivkohlebett zum Speichern von Kraftstoff,
- eine Belüftungsleitung zum Zuführen von Spülgas in den Kraftstoffspeicher, wobei die Belüftungsleitung ein Belüftungsventil umfasst,
- eine Kraftstoffleitung zum Transport von Kraftstoff aus einem an die Tankentlüftungsvorrichtung angeschlossenen Kraftstofftank in den Kraftstoffspeicher,
- eine Entlüftungsleitung zum Transport von Gasen aus dem Kraftstoffspeicher zu einer Verbrennungskraftmaschine, wobei in der Entlüftungsleitung ein Tankentlüftungsventil vorgesehen ist, und
- mindestens ein Thermoelement, das im Kraftstoffspeicher, in einem direkten Strömungsweg eines Kraftstoffes zwischen der Kraftstoffleitung und der Entlüftungsleitung, angeordnet ist.
- a fuel reservoir with an activated carbon bed for storing fuel,
- a vent line for supplying purge gas into the fuel reservoir, the vent line comprising a vent valve,
- a fuel line for transporting fuel from a fuel tank connected to the tank ventilation device into the fuel reservoir,
- a vent line for transporting gases from the fuel storage to an internal combustion engine, wherein in the vent line, a tank vent valve is provided, and
- at least one thermocouple disposed in the fuel reservoir, in a direct flow path of a fuel between the fuel line and the vent line.
Das erfindungsgemäße Verfahren ist durch die Schritte:
- Bestimmen der Temperatur T0 des Aktivkohlebetts im direkten Strömungsweg des Kraftstoffes zum Zeitpunkt 0 vor der Belüftung mittels des Thermoelements,
- ggf. Öffnen des Belüftungsventils,
- ggf. Öffnen des Entlüftungsventils,
- Bestimmen der Temperatur T1 im direkten Strömungsweg zum Zeitpunkt 1 während der Belüftung mittels des Thermoelements und
- wenn T1 > T0 entweder ein Schließen der Entlüftungsventils oder ein Erhöhen des Spülgases
- Determining the temperature T 0 of the activated carbon bed in the direct flow path of the fuel at time 0 before venting by means of the thermocouple,
- if necessary opening the ventilation valve,
- if necessary opening the venting valve,
- Determining the temperature T 1 in the direct flow path at time 1 during the ventilation by means of the thermocouple and
- if T 1 > T 0 either a closing of the vent valve or an increase of the purge gas
Anschließend wird durch Öffnen des Belüftungsventils und Öffnen des Entlüftungsventils der Entlüftungsvorgang des Kraftstoffspeichers und somit dessen Regenerierung, eingeleitet. Spülgas, also insbesondere Luft, wird durch den Kraftstoffspeicher gezogen und treibt im Aktivkohlebett gespeicherten Kraftstoff aus. Der ausgetriebene Kraftstoff wird zusammen mit dem Spülgas der Verbrennungskraftmaschine zugeleitet.Subsequently, by opening the venting valve and opening the venting valve, the venting process of the fuel reservoir and thus its regeneration, initiated. Purge gas, ie in particular air, is drawn through the fuel storage and drives stored in the activated carbon bed fuel. The expelled fuel is fed together with the purge gas of the internal combustion engine.
Zum Zeitpunkt 1 während der Entlüftung bzw. Regenerierung, bzw. in weiteren vorgegebenen regelmäßigen oder unregelmäßigen Zeitintervallen zu Zeitpunkten Tn, wird zum Zeitpunkt 1 bzw. zu Zeitpunkten n, während des Entlüftungsvorganges mittels des Thermoelements die Temperatur T1 (bzw. Temperaturen Tn) bestimmt.At time 1 during the venting or regeneration, or in further predetermined periodic or irregular time intervals at times T n , at time 1 or at times n, during the venting process by means of the thermocouple, the temperature T 1 (or temperatures T n ) certainly.
Im Störfall, also wenn während des Entlüftungsvorganges eine zusätzliche Menge an Kraftstoff (Beladungsfront) aus dem Kraftstofftank in den Kraftstoffspeicher übertritt, beispielsweise durch Erschütterung des Kraftstofftanks, wird mittels des Thermoelements im direkten Strömungsweg eine Temperaturerhöhung detektiert. Wenn also T1 bzw. Tn größer ist als T0, so zeigt dies eine zur Beladung des Kraftstoffspeichers aus dem Kraftstofftank zusätzlich während des Entlüftungsvorganges übergetretene Menge an Kraftstoff an. Um eine optimale Kraftstoffgemischzusammensetzung zu erhalten wird sodann entweder das Entlüftungsventil geschlossen oder die Menge an Spülgas erhöht. Diese Gemischsteuerung ist unabhängig von einer Nachsteuerung durch die aus einer Lambdasonde im Abgas erhaltenen Werte und wird bereits vor Eintritt des Kraftstoffgemischs in die Verbrennungskraftmaschine vorgenommen. Damit wird eine gezielt auf den Motorbedarf abgestimmte Gemischzusammensetzung bereitgestellt.In case of failure, so if during the venting process an additional amount of fuel (loading front) from the fuel tank into the fuel reservoir, for example, by vibration of the fuel tank, a temperature increase is detected by the thermocouple in the direct flow path. Thus, if T 1 or T n is greater than T 0 , this indicates an additional amount of fuel transferred to the loading of the fuel reservoir from the fuel tank during the venting process. In order to obtain an optimum fuel mixture composition, either the vent valve is then closed or the amount of purge gas is increased. This mixture control is independent of a subsequent control by the values obtained from a lambda probe in the exhaust gas and is already made before the fuel mixture enters the internal combustion engine. This provides a mixture composition tailored to the engine requirements.
Der Vollständigkeit halber wird angemerkt, dass sich das hier skizzierte erfindungsgemäße Verfahren zum Betrieb einer wie vorstehend beschriebenen Tankentlüftungsvorrichtung eignet.For the sake of completeness, it is noted that the method according to the invention outlined here is suitable for operating a tank ventilation device as described above.
Der Unteranspruch hat vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung zum Inhalt.The subclaim has advantageous embodiments and modifications of the invention to the content.
Die vorteilhafte Weiterbildung des Verfahrens sieht vor, dass in Abhängigkeit einer Höhe der Temperatur T1 zum Zeitpunkt 1 mehr Spülgas durch den Kraftstoffspeicher geleitet wird oder ein Öffnungsgrad des Entlüftungsventils reduziert wird. Da eine Temperaturerhöhung die Größe der Kraftstoffbeladungsfront aus dem Kraftstofftank widerspiegelt, kann somit eine noch effizientere Kraftstoffgemischbildung erzielt werden.The advantageous development of the method provides that, depending on a level of the temperature T 1 at time 1 more purge gas is passed through the fuel tank or an opening degree of the vent valve is reduced. Thus, since a temperature increase reflects the size of the fuel loading front from the fuel tank, even more efficient fuel mixture formation can be achieved.
Ferner beschrieben aber nicht Teil der Erfindung ist eine Steuervorrichtung, insbesondere in einem Kraftfahrzeug, die sich zur Durchführung eines wie vorstehend dargelegten Verfahrens eignet. Hierdurch kann auf einfache Art und Weise während eines Entlüftungsvorganges des Kraftstoffspeichers eine optimierte Kraftstoffgemischsteuerung vorgenommen werden.Further described but not part of the invention is a control device, in particular in a motor vehicle, which is suitable for carrying out a method as set out above. As a result, an optimized fuel mixture control can be carried out in a simple manner during a venting process of the fuel accumulator.
Infolge der erfindungsgemäßen Ausgestaltungen des erfindungsgemäßen Verfahrens zur Steuerung einer Kraftstoffgemischzusammensetzung für eine Verbrennungskraftmaschine, ergeben sich insbesondere folgende Vorteile:
- Eine Kraftstoffgemischzusammensetzung erfolgt während des Entlüftungsvorganges eines Kraftstoffspeichers und unabhängig von im Nachhinein durch eine Lambdasonde ermittelten Werte.
- Die Kraftstoffgemischzusammensetzung wird auf den jeweils aktuellen Motorbedarf eingestellt.
- Motordrehzahlschwankungen können verhindert werden.
- Eine Geruchsbelästigung durch ausströmenden Kraftstoff kann reduziert werden.
- Vorgegebene Kraftstoffemissionswerte können einfacher eingehalten werden.
- A fuel mixture composition takes place during the venting process of a fuel accumulator and independently of values determined in retrospect by a lambda probe.
- The fuel mixture composition is adjusted to the current engine requirements.
- Engine speed fluctuations can be prevented.
- Odor nuisance due to escaping fuel can be reduced.
- Predefined fuel emission values can be complied with more easily.
Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung und den Figuren. Es zeigen:
- Figur 1
- eine schematische Ansicht einer ersten Tankentlüftungsvorrichtung und
Figur 2- eine schematische Ansicht einer zweiten Tankentlüftungsvorrichtung.
- FIG. 1
- a schematic view of a first tank ventilation device and
- FIG. 2
- a schematic view of a second tank ventilation device.
In den Figuren sind nur die hier interessierenden Aspekte im Lichte der vorliegenden Erfindung dargestellt, alle übrigen Aspekte sind der Übersichtlichkeit halber weggelassen. Ferner beziehen sich gleiche Bezugszeichen auf gleiche Bauteile.In the figures, only the aspects of interest here are shown in the light of the present invention, all other aspects are omitted for clarity. Furthermore, like reference numerals refer to like components.
An den Kraftstoffspeicher 2 schließt ferner eine Belüftungsleitung 9 an, mittels der Spülgas, also insbesondere Luft aus der Umgebung der Tankentlüftungsvorrichtung 10, in den Kraftstoffspeicher 2 eingeleitet werden kann. Das Einleiten von Spülgas und vorzugsweise auch die Menge an eingeleitetem Spülgas kann über das in der Belüftungsleitung 9 vorhandene Belüftungsventil geregelt werden.To the
In der hier gezeigten Tankentlüftungsvorrichtung 10 liegen sind die Kraftstoffleitung 4 und die Entlüftungsleitung 5 an gegenüberliegenden Seiten des Kraftstoffspeichers 2 angeordnet, so dass sich zwischen der Kraftstoffleitung 4 und der Entlüftungsleitung 5 ein direkter Strömungsweg 11 ergibt. In den direkten Strömungsweg 11 ist ein Thermoelement 8 eingebracht, das vorzugsweise im Aktivkohlebett des Kraftstoffspeichers 2 angeordnet ist.In the
Zum Entlüften des Kraftstoffspeichers 2, also zur Regenerierung des Kraftstoffspeichers 2 durch Austreiben des absorbierten bzw. adsorbierten Kraftstoffes, werden das Belüftungsventil 6 und das Tankentlüftungsventil 7 geöffnet, so dass die Entlüftungsleitung 5 zwischen dem Kraftstoffspeicher 2 und der Verbrennungskraftmaschine 3 geöffnet wird. Durch den in der Entlüftungsleitung 5 herrschenden Unterdruck wird Spülgas über die Belüftungsleitung 9 durch den Kraftstoffspeicher 2 gesaugt. Das Spülgas nimmt den im Kraftstoffspeicher vorhandenen Kraftstoff auf und führt ihn der Verbrennung in der Verbrennungskraftmaschine 3 zu, was zu einer Regeneration des Aktivkohlebetts führt.To vent the
Tritt nun im Entlüftungsfall ein Störfall auf, beispielsweise durch Eintritt von weiterem Kraftstoff aus dem Kraftstofftank 1 in den Kraftstoffspeicher 2, z.B. durch mechanische Einwirkung auf den Kraftstofftank 1, so ist die sich ausbildende Beladungsfront an Kraftstoff über eine Temperaturerhöhung im Kraftstoffspeicher 2 messbar. Hierzu ist das Thermoelement 8 vorgesehen, das im direkten Strömungsweg 11 zwischen der Kraftstoffleitung 4 und der Entlüftungsleitung 5 angeordnet ist, einem Bereich, in den die Beladungsfront beim Eintritt in den Kraftstoffspeicher direkt gelangt. Während dampfförmig, beispielsweise außerhalb des Entlüftungsprozesses eintretender gasförmiger Kraftstoff, durch Absorptions- und Diffusionsvorgänge im gesamten Kraftstoffspeicher 2 gleichmäßig verteilt wird, gelangt eine Beladungsfront während des Entlüftungsprozesses lediglich in den direkten Strömungsweg 11, aus dem sie ebenfalls durch das durchtretende Spülgas, entfernt, also ausgetrieben wird. Zunächst jedoch ist das Vorhandensein dieser Beladungsfront durch eine Temperaturerhöhung im direkten Strömungsweg 11 messbar. Durch einen Vergleich mit Referenzdaten kann beispielsweise auch eine genaue Menge an Kraftstoff in der Beladungsfront ermittelt werden.Occurs now in the venting case of an accident, for example, by the entry of additional fuel from the fuel tank 1 in the
Wird also durch das Thermoelement 8 eine im Vergleich zu vor dem Beginn des Entlüftungsvorganges höhere Temperatur gemessen, kann durch ein Zuführen von mehr Spülgas durch die Belüftungsleitung 9 und/oder durch Drosselung des Tankentlüftungsventils 7 gezielt eine an den Bedarf der Verbrennungskraftmaschine angepasste Kraftstoffgemischzusammensetzung eingestellt werden. Dies führt in der Regel zu einem erhöhten Durchfluss an Spülgas, wodurch eine Geruchsbelästigung nach Kraftstoff verhindert und gesetzlich vorgegebene Grenzwerte für eine Kraftstoffemission leichter eingehalten werden können. Eine Motordrehzahl der Verbrennungskraftmaschine 3 ist somit stabil.Thus, if a higher temperature is measured by the
Im direkten Strömungsweg 11 ist wiederum ein Thermoelement 8 angeordnet. Zusätzlich dazu ist ein Temperatursensor 12 im Aktivkohlebett außerhalb des direkten Strömungswegs 11 vorgesehen, mittels dessen ein Beladungszustand des Aktivkohlebetts im Kraftstoffspeicher 2 vor dem Einleiten des Entlüftungsvorganges ermittelt werden kann.In the
Die vorhergehende Beschreibung der vorliegenden Erfindung dient nur zu illustrativen Zwecken und nicht zum Zwecke der Beschränkung der Erfindung. Im Rahmen der Erfindung sind verschiedene Änderungen und Modifikationen möglich, ohne den Umfang der Erfindung sowie ihrer Äquivalente zu verlassen.The foregoing description of the present invention is for illustrative purposes only, and not for the purpose of limiting the invention. Various changes and modifications are possible within the scope of the invention without departing from the scope of the invention and its equivalents.
- 11
- KraftstofftankFuel tank
- 22
- KraftstoffspeicherFuel storage
- 33
- VerbrennungskraftmaschineInternal combustion engine
- 44
- KraftstoffleitungFuel line
- 55
- Entlüftungsleitungvent line
- 66
- Belüftungsventilvent valve
- 77
- TankentlüftungsventilTank ventilation valve
- 88th
- Thermoelementthermocouple
- 99
- Entlüftungsleitungvent line
- 1010
- TankentlüftungsvorrichtungTank ventilation device
- 1111
- direkter Strömungswegdirect flow path
- 1212
- Temperatursensortemperature sensor
Claims (2)
- A method for controlling a fuel mixture composition for an internal combustion engine (3) with a tank ventilation device (10) when aerating a fuel accumulator (2), wherein the tank ventilation device (10) is introduced between a fuel tank (2) and an internal combustion engine (3), and comprises- a fuel accumulator (2) with an activated carbon bed for storing fuel,- an aeration line (9) for supplying flushing gas into the fuel accumulator (2), wherein the aeration line (9) preferably comprises an aeration valve (6),- a fuel line (4) for transporting fuel out of a fuel tank (1) which is connected to the tank ventilation device (10) into the fuel accumulator (2),- a ventilation line (5) for transporting gases out of the fuel accumulator (2) to an internal combustion engine (3), wherein preferably a tank vent valve (7) is provided in the ventilation line (5), and- at least one thermocouple (8), which is arranged in the fuel accumulator (2), in a direct path of flow (11) of a fuel between the fuel line (4) and the ventilation line (5),wherein the method comprises the steps:- determining the temperature T0 of the activated carbon bed in the direct path of flow (11) of the fuel at the time 0 prior to the aeration by means of the thermocouple (8),- optionally opening the aeration valve (6),- optionally opening the ventilation valve (7), and- determining the temperature T1 in the direct path of flow (11) at the time 1 during the aeration by means of the thermocouple (8),characterised in that the method comprises,
if T1 > T0, either closing of the ventilation valve (7) or increasing the flushing gas. - A method according to Claim 1, characterised in that, dependent on a level of the temperature T1 at the time 1, more flushing gas is passed through the fuel accumulator (2) or a degree of opening of the ventilation valve (7) is reduced.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013219231.2A DE102013219231A1 (en) | 2013-09-25 | 2013-09-25 | Tank ventilation device, motor vehicle, method for controlling a fuel mixture composition and control device therefor |
PCT/EP2014/067808 WO2015043846A1 (en) | 2013-09-25 | 2014-08-21 | Tank ventilation device, motor vehicle, method for controlling a fuel mixture composition, and control device therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3049664A1 EP3049664A1 (en) | 2016-08-03 |
EP3049664B1 true EP3049664B1 (en) | 2017-11-01 |
Family
ID=51383731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14753088.5A Active EP3049664B1 (en) | 2013-09-25 | 2014-08-21 | Tank ventilation device, motor vehicle, method for controlling the fuel mixture composition and control system therefor |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3049664B1 (en) |
CN (1) | CN105408612B (en) |
DE (1) | DE102013219231A1 (en) |
WO (1) | WO2015043846A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4126880A1 (en) * | 1991-06-28 | 1993-01-07 | Bosch Gmbh Robert | TANK VENTILATION SYSTEM AND METHOD AND DEVICE FOR CHECKING THEIR FUNCTIONALITY |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0235952U (en) * | 1988-08-29 | 1990-03-08 | ||
US5251592A (en) * | 1991-02-20 | 1993-10-12 | Honda Giken Kogyo Kabushiki Kaisha | Abnormality detection system for evaporative fuel control systems of internal combustion engines |
JPWO2002064966A1 (en) * | 2001-02-09 | 2004-06-17 | 愛三工業株式会社 | Evaporative fuel processing equipment |
US6695895B2 (en) * | 2001-05-02 | 2004-02-24 | Toyota Jidosha Kabushiki Kaisha | Fuel vapor handling apparatus and diagnostic apparatus thereof |
DE102008034487A1 (en) * | 2008-07-24 | 2010-02-04 | Continental Automotive Gmbh | Method for rapid emptying of the activated carbon filter with inclusion of a HC sensor (concentration change) |
JP2012225167A (en) * | 2011-04-15 | 2012-11-15 | Aisan Industry Co Ltd | Fuel vapor processing devices |
JP2013053556A (en) * | 2011-09-05 | 2013-03-21 | Aisan Industry Co Ltd | Fuel vapor processing apparatus |
JP2013108471A (en) * | 2011-11-24 | 2013-06-06 | Aisan Industry Co Ltd | Vaporized fuel processing device |
-
2013
- 2013-09-25 DE DE102013219231.2A patent/DE102013219231A1/en not_active Withdrawn
-
2014
- 2014-08-21 EP EP14753088.5A patent/EP3049664B1/en active Active
- 2014-08-21 CN CN201480040901.1A patent/CN105408612B/en active Active
- 2014-08-21 WO PCT/EP2014/067808 patent/WO2015043846A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4126880A1 (en) * | 1991-06-28 | 1993-01-07 | Bosch Gmbh Robert | TANK VENTILATION SYSTEM AND METHOD AND DEVICE FOR CHECKING THEIR FUNCTIONALITY |
Also Published As
Publication number | Publication date |
---|---|
DE102013219231A1 (en) | 2015-03-26 |
CN105408612B (en) | 2018-01-30 |
CN105408612A (en) | 2016-03-16 |
EP3049664A1 (en) | 2016-08-03 |
WO2015043846A1 (en) | 2015-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE602005005531T2 (en) | A fuel injection control device for an internal combustion engine having two injection nozzles and a tank ventilation system | |
DE102018130219A1 (en) | Systems and methods for heating a vehicle intake manifold during stop / start events | |
DE112005000875T5 (en) | Prediction for purging an EVAP tank for engine fuel and air control | |
DE102010055319A1 (en) | Device for ventilating and venting a fuel tank | |
DE102010002534A1 (en) | Evaporative fuel system and control method therefor | |
DE102009035845A1 (en) | Method of operating a fuel vapor retention system | |
DE102010060956B4 (en) | Container for vehicle and tanked fuel supply system | |
DE102010021584A1 (en) | Vehicle fuel vapor management | |
DE102012200177B4 (en) | Processing device for evaporating fuel for a vehicle | |
WO2014125042A1 (en) | Control method for adjusting the hydrocarbon concentration in an active carbon filter of a motor vehicle | |
EP3499009A1 (en) | Combustion engine, motor vehicle and method for operating a combustion engine | |
DE112004000447B4 (en) | Detection of the hydrocarbon concentration in the regeneration of a fuel vapor storage tank | |
DE102008023607B4 (en) | Method and device for functional testing of a pressure switch of a tank ventilation system for an internal combustion engine of a motor vehicle | |
DE102016221907B3 (en) | A method of controlling a tank vent for a fuel tank by limiting a purge mass flow | |
DE4316728A1 (en) | Controlled feeding and recycling set=up for fuel fraction from vehicle tank - collects vented components in storage unit for re-emission into inlet manifold when richer mixture is required | |
DE102008007030A1 (en) | Method and device for checking the functionality of a tank ventilation device for an internal combustion engine | |
EP3049664B1 (en) | Tank ventilation device, motor vehicle, method for controlling the fuel mixture composition and control system therefor | |
DE102016010837A1 (en) | Tank ventilation device for a motor vehicle, in particular a motor vehicle, and method for operating such a tank ventilation device | |
DE102011015998B4 (en) | Method for determining a loading of a storage facility for gaseous hydrocarbons and a tank development system for a vehicle | |
DE102019115986A1 (en) | VEHICLE STOPPING FORECAST | |
EP3533985A1 (en) | Combustion engine, motor vehicle and method for operating a combustion engine | |
DE102014010686B4 (en) | Internal combustion engine with tank ventilation system and operating method | |
DE19702585C2 (en) | Vaporized gas trap system in a motor vehicle | |
DE102018204717B3 (en) | Method and device for tank leak diagnosis in a motor vehicle | |
EP2089621B1 (en) | Method for controlling an internal combustion engine, and internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20160322 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20170201 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20170703 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 942294 Country of ref document: AT Kind code of ref document: T Effective date: 20171115 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502014006073 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20171101 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180201 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180201 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180202 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180301 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502014006073 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 |
|
26N | No opposition filed |
Effective date: 20180802 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180821 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180831 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180831 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20180831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20140821 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180821 Ref country code: MK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171101 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 942294 Country of ref document: AT Kind code of ref document: T Effective date: 20190821 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190821 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20220831 Year of fee payment: 9 Ref country code: GB Payment date: 20220824 Year of fee payment: 9 Ref country code: DE Payment date: 20220621 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20220822 Year of fee payment: 9 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230502 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502014006073 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20230821 |