EP1035320A2 - Method for filling a fuel system for the first time - Google Patents

Method for filling a fuel system for the first time Download PDF

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Publication number
EP1035320A2
EP1035320A2 EP00102371A EP00102371A EP1035320A2 EP 1035320 A2 EP1035320 A2 EP 1035320A2 EP 00102371 A EP00102371 A EP 00102371A EP 00102371 A EP00102371 A EP 00102371A EP 1035320 A2 EP1035320 A2 EP 1035320A2
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European Patent Office
Prior art keywords
fuel pump
fuel
vehicle
filling
activation
Prior art date
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Granted
Application number
EP00102371A
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German (de)
French (fr)
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EP1035320B1 (en
EP1035320A3 (en
Inventor
Joachim Fröschl
Ulrich Schlachetzki
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven

Definitions

  • the invention relates to a method for the first filling of a fuel system in a motor vehicle with at least two controls and one the fuel pump.
  • the object of the present invention is to specify a method with that the first filling of the fuel system is easy and inexpensive can.
  • At least two are in the inventive method Controls already in the vehicle operated simultaneously. By this actuation will operate the fuel pump to fill the Fuel system, especially the fuel lines triggered.
  • the driving and brake pedals are suitable as control elements.
  • other combinations of in the vehicle existing controls can be selected.
  • the decisive factor is the present only that no additional equipment to trigger the initial filling must be used. This can result in additional set-up costs be avoided.
  • a motor controller is preferably provided in conventional motors, in which the method described above is implemented in software can be.
  • the method according to the invention can be implemented using a pure software solution implemented cost-neutral.
  • the fuel pump should preferably only be switched on when the ignition is switched on and / or switched off engine can be operated. This prevents that already in a previous production step, e.g. at almost fully assembled vehicle and unintentional and simultaneous Operating the accelerator and brake pedals an unwanted filling he follows.
  • the activation of the fuel pump should continue throughout Vehicle life only a limited number of times, especially only once, to be possible.
  • the activation of the fuel pump can also only allowed in a certain operating hours or kilometers range become.
  • the fuel pump can only be used once during be activated during a driving cycle.
  • the fuel pump is not activated for an unnecessarily long time, it is preferred a limitation of the activation time of the fuel pump (for example 20 seconds).
  • a pump flow should be prevented, which is generally the case with a Ignition on "signal is carried out.
  • the fuel pump operation can be blocked as long as there is no initial filling.
  • the present method for initial filling acts like an initialization.
  • the single drawing shows an embodiment in a schematic manner of the method according to the invention.
  • a brake pedal 10 and a Accelerator pedal 12 is provided, each of which can be actuated by a driver. Both pedals 10 and 12 are actuated by means of sensors 14 and 16 detected. The sensors 14 and 16 deliver a corresponding signal to one Motor controller 20. The motor controller 20 processes in a conventional manner Way the information from the pedals 10 and 12.
  • the motor controller 20 controls, among other things, a pump 22 which is in a Fuel line 24 (or alternatively located in a fuel tank) is to move fuel from a fuel tank 24 towards the engine (arrow 28) to convey.
  • a software part is present in the engine control unit 20 that makes it unique allows fuel pump 22 during a vehicle life to operate when the vehicle ignition is switched on and the two pedals 10 and 12 completely at the same time with the engine stopped be stepped on.
  • the fuel pump 22 is about Operated for 20 seconds so that the entire fuel system, i.e. the fuel lines, the fuel filter, etc., is filled with fuel.
  • the present inventive method enables a simple and Inexpensive first filling of a fuel system.
  • An additional effort in the form of an additional set-up effort can be omitted. Simple operation is also guaranteed.
  • the method according to the invention can also be used in customer service be applied.

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  • 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)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The method involves simultaneously actuating at least two control elements (10,12) in the vehicle to initiate operation of the fuel pump (22) to fill the fuel system (26) while the vehicle's engine is not running. The fuel pump is only activated if the ignition is on. The control elements can be the accelerator and brake pedals.

Description

Die Erfindung betrifft ein Verfahren zur Erstbefüllung eines Kraftstoffsystems bei einem Kraftfahrzeug mit zumindest zwei Bedienelementen sowie einer den Kraftstoff fördernden Kraftstoffpumpe.The invention relates to a method for the first filling of a fuel system in a motor vehicle with at least two controls and one the fuel pump.

Für die Erstbefüllung eines Kraftstoffsystems bei einem Kraftfahrzeug nach dem Herstellungsprozeß ist es erforderlich, die Kraftstoffpumpe über mehrere Sekunden anzusteuern. Herkömmlicherweise wird dies durch eine Überbrückung des Kraftstoffpumpenrelais bewirkt.For the initial filling of a fuel system in a motor vehicle the manufacturing process, it is necessary to use the fuel pump over several Seconds to go. Traditionally this is done by bridging of the fuel pump relay.

Es ist auch bekannt, über einen extern anzuschließenden Tester und mittels eines Diagnosebefehls die Motorsteuerung zum Betrieb der Kraftstoffpumpe anzusteuern.It is also known to use an external tester and by means of a diagnostic command the engine control for operating the fuel pump head for.

Die oben genannten Verfahren erfordern während oder nach der Fertigung jedoch einen bestimmten Applikations- und Rüstaufwand, der zusätzliche Kosten verursacht. The above procedures require during or after manufacturing however, a certain application and set-up effort, the additional Costs.

Zum weiteren Umfeld der Erfindung wird noch auf die DE 32 46 658 A1 hingewiesen, in dem eine Vorrichtung zum Abstellen und Anlassen von Kraftfahrzeugmotoren mit Automatikgetrieben beschrieben ist.For further details of the invention, reference is also made to DE 32 46 658 A1, in which a device for switching off and starting motor vehicle engines is described with automatic transmissions.

Aufgabe der vorliegenden Erfindung ist es, ein Verfahren anzugeben, mit dem die Erstbefüllung des Kraftstoffsystems einfach und kostengünstig erfolgen kann.The object of the present invention is to specify a method with that the first filling of the fuel system is easy and inexpensive can.

Diese Aufgabe wird durch die im Anspruch 1 genannten Merkmale gelöst.This object is achieved by the features mentioned in claim 1.

Demgemäß werden bei dem erfindungsgemäßen Verfahren zumindest zwei bereits im Fahrzeug vorhandene Bedienelemente gleichzeitig betätigt. Durch diese Betätigung wird ein Betrieb der Kraftstoffpumpe zur Befüllung des Kraftstoffsystems, insbesondere der Kraftstoffleitungen, ausgelöst.Accordingly, at least two are in the inventive method Controls already in the vehicle operated simultaneously. By this actuation will operate the fuel pump to fill the Fuel system, especially the fuel lines triggered.

Als Bedienelemente eignen sich beispielsweise das Fahr- und das Bremspedal. Alternativ können aber auch andere Kombinationen von im Fahrzeug vorhandenen Bedienelementen gewählt werden. Ausschlaggebend ist vorliegend lediglich, daß keine zusätzliche Ausrüstung zur Auslösung der Erstbefüllung verwendet werden muß. Damit können zusätzliche Rüstkosten vermieden werden.The driving and brake pedals, for example, are suitable as control elements. Alternatively, other combinations of in the vehicle existing controls can be selected. The decisive factor is the present only that no additional equipment to trigger the initial filling must be used. This can result in additional set-up costs be avoided.

Vorzugsweise ist bei herkömmlichen Motoren eine Motorsteuerung vorgesehen, in der das oben beschriebene Verfahren softwaremäßig implementiert werden kann. Werden bereits elektrische Steuerbefehle bei den entsprechenden Bedienelementen (z.B. beim Fahr- und Bremspedals) verwendet, so kann das erfindungsgemäße Verfahren durch eine reine Softwarelösung kostenneutral implementiert werden.A motor controller is preferably provided in conventional motors, in which the method described above is implemented in software can be. Are electrical control commands already at the corresponding Controls (e.g. on the accelerator and brake pedals) are used, the method according to the invention can be implemented using a pure software solution implemented cost-neutral.

Vorzugsweise soll die Kraftstoffpumpe nur bei eingeschalteter Zündung und/oder abgestelltem Motor betrieben werden können. Damit wird verhindert, daß bereits in einem vorhergehenden Produktionsschritt, z.B. bei fast völlig zusammengebautem Fahrzeug und unbeabsichtigtem und gleichzeitigem Betätigen von Fahrpedal und Bremspedal eine ungewollte Befüllung erfolgt.The fuel pump should preferably only be switched on when the ignition is switched on and / or switched off engine can be operated. This prevents that already in a previous production step, e.g. at almost fully assembled vehicle and unintentional and simultaneous Operating the accelerator and brake pedals an unwanted filling he follows.

Eine weitere Maßnahme zur Verhinderung einer ungewollten Befüllung bei einer Wahl von Fahr- und Bremspedal als Bedienelementen ist dadurch vorgesehen, daß die Kraftstoffpumpe nur dann betrieben wird, wenn das Fahrpedal und das Bremspedal jeweils vollständig durchgetreten werden müssen.Another measure to prevent unwanted filling A choice of driving and brake pedals as controls is provided that the fuel pump is only operated when the accelerator pedal and the brake pedal must be fully depressed.

Da es sich im vorliegenden Fall um eine Erstbefüllung eines Kraftfahrzeugs handelt, sollte die Aktivierung der Kraftstoffpumpe während des gesamten Fahrzeuglebens nur in einer begrenzten Anzahl mal, insbesondere nur einmal, möglich sein. Alternativ kann die Aktivierung der Kraftstoffpumpe auch nur in einem bestimmten Betriebsstunden- oder Kilometerbereich erlaubt werden. Als weitere Alternative kann die Kraftstoffpumpe nur einmal während eines Fahrzyklus aktivierbar sein.Since in the present case it is an initial filling of a motor vehicle acts, the activation of the fuel pump should continue throughout Vehicle life only a limited number of times, especially only once, to be possible. Alternatively, the activation of the fuel pump can also only allowed in a certain operating hours or kilometers range become. As a further alternative, the fuel pump can only be used once during be activated during a driving cycle.

Falls nur eine begrenzte Anzahl von derartigen Kraftstoffbefüllungen vorgesehen sind, ist eine Rücksetzungsmöglichkeit von Interesse, so daß die Möglichkeiten der Kraftstoffbefüllung auch nach oder bei einem Werkstattaufenthalt genutzt werden können.If only a limited number of such fuel fillings are provided are a reset option of interest, so that the Possibilities of filling the fuel even after or during a visit to the workshop can be used.

Damit die Kraftstoffpumpe nicht unnötig lange angesteuert wird, ist vorzugsweise eine Begrenzung der Ansteuerzeit der Kraftstoffpumpe (beispielsweise 20 Sek.) vorgesehen.So that the fuel pump is not activated for an unnecessarily long time, it is preferred a limitation of the activation time of the fuel pump (for example 20 seconds).

Um einen Trockenlauf der Kraftstoffpumpe zu verhindern, sollte diese vorzugsweise solange nicht betrieben werden können, wie sie nicht von Kraftstoff umspült ist. Bei einer im Kraftstofftank angeordneten Kraftstoffpumpe kann dazu die Befüllung des Kraftstofftanks mittels eines Sensors überprüft werden. Alternativ ist es möglich, die Betriebsdaten der Kraftstoffpumpe zu überwachen. Beispielsweise kann über deren Stromaufnahme oder deren Drehzahl auf einen Trockenlauf geschlossen werden.To prevent the fuel pump from running dry, this should preferably be used as long as they can't run on fuel is washed around. With a fuel pump arranged in the fuel tank can check the filling of the fuel tank using a sensor become. Alternatively, it is possible to add the operating data of the fuel pump monitor. For example, their current consumption or their Speed can be concluded on a dry run.

Ferner sollte ein Pumpenvorlauf verhindert werden, der generell bei einem

Figure 00040001
Zündung Ein"-Signal durchgeführt wird. Zu diesem Zweck kann der Kraftstoffpumpenbetrieb solange gesperrt werden, wie keine Erstbefüllung vorliegt. Insofern wirkt das vorliegende Verfahren zur Erstbefüllung wie eine Initialisierung.Furthermore, a pump flow should be prevented, which is generally the case with a
Figure 00040001
Ignition on "signal is carried out. For this purpose, the fuel pump operation can be blocked as long as there is no initial filling. In this respect, the present method for initial filling acts like an initialization.

Eine vorteilhafte und kostengünstige Ausführungsvariante der vorliegenden Erfindung wird anhand der einzigen Zeichnung näher erläutert.An advantageous and inexpensive variant of the present Invention is explained in more detail with reference to the single drawing.

Die einzige Zeichnung zeigt in schematischer Weise eine Ausführungsform des erfindungsgemäßen Verfahrens. Dabei ist ein Bremspedal 10 sowie ein Fahrpedal 12 vorgesehen, welche jeweils von einem Fahrer betätigbar sind. Die Betätigung beider Pedale 10 und 12 wird mittels Sensoren 14 und 16 erfaßt. Die Sensoren 14 und 16 liefern ein entsprechendes Signal an eine Motorsteuerung 20. Die Motorsteuerung 20 verarbeitet in herkömmlicher Weise die von den Pedalen 10 und 12 anliegenden Informationen.The single drawing shows an embodiment in a schematic manner of the method according to the invention. There is a brake pedal 10 and a Accelerator pedal 12 is provided, each of which can be actuated by a driver. Both pedals 10 and 12 are actuated by means of sensors 14 and 16 detected. The sensors 14 and 16 deliver a corresponding signal to one Motor controller 20. The motor controller 20 processes in a conventional manner Way the information from the pedals 10 and 12.

Die Motorsteuerung 20 steuert unter anderem eine Pumpe 22 an, die in einer Kraftstoffleitung 24 (oder alternativ in einem Kraftstofftank) angeordnet ist, um Kraftstoff von einem Kraftstofftank 24 in Richtung des Motors (Pfeil 28) zu befördern.The motor controller 20 controls, among other things, a pump 22 which is in a Fuel line 24 (or alternatively located in a fuel tank) is to move fuel from a fuel tank 24 towards the engine (arrow 28) to convey.

In der Motorsteuerung 20 ist ein Softwareteil vorhanden, der es einmalig während einer Fahrzeuglebensdauer ermöglicht, die Kraftstoffpumpe 22 dann zu betreiben, wenn die Zündung des Fahrzeugs eingeschaltet ist und die beiden Pedale 10 und 12 bei stehendem Motor gleichzeitig vollständig durchgetreten werden. In diesem Fall wird die Kraftstoffpumpe 22 über etwa 20 Sek. betrieben, so daß das gesamte Kraftstoffsystem, also die Kraftstoffleitungen, der Kraftstoffilter, etc., mit Kraftstoff befüllt wird.A software part is present in the engine control unit 20 that makes it unique allows fuel pump 22 during a vehicle life to operate when the vehicle ignition is switched on and the two pedals 10 and 12 completely at the same time with the engine stopped be stepped on. In this case, the fuel pump 22 is about Operated for 20 seconds so that the entire fuel system, i.e. the fuel lines, the fuel filter, etc., is filled with fuel.

Zudem ist es möglich, die Motorsteuerung 20 über ein externes, an das Fahrzeug anschließbares Diagnosegerät derart zurückzusetzen, daß durch ein erneutes Betätigen der beiden Pedale 10 und 12 eine weitere Aktivierung der Kraftstoffpumpe erfolgen kann. Dies ist beispielsweise dann von Interesse, wenn das Fahrzeug in einer Werkstatt repariert und das Kraftstoffsystem wieder befüllt werden muß.In addition, it is possible to connect the motor controller 20 to an external device Vehicle connectable diagnostic device to reset such that a renewed activation of the two pedals 10 and 12 the fuel pump can be done. This is of interest, for example, when the vehicle is repaired in a workshop and the fuel system must be refilled.

Das vorliegende erfindungsgemäße Verfahren ermöglicht eine einfache und kostengünstige Erstbefüllung eines Kraftstoffsystems. Ein Zusatzaufwand bei der Fertigung in Form eines zusätzlichen Rüstaufwands kann entfallen. Ferner ist eine einfache Bedienung gewährleistet. Neben einer Anwendung in der Fertigung kann das erfindungsgemäße Verfahren auch im Kundendienst angewendet werden.The present inventive method enables a simple and Inexpensive first filling of a fuel system. An additional effort in the form of an additional set-up effort can be omitted. Simple operation is also guaranteed. In addition to an application in production, the method according to the invention can also be used in customer service be applied.

Natürlich ist es auch möglich, ein gleichzeitiges Betätigen von im Fahrzeug vorhandenen Bedienelementen, als Initialisierungsmöglichkeit oder Betätigungssignal für andere Vorgänge zu verwenden. Auch dann können evtl. zusätzliche Rüstkosten eingespart werden.Of course, it is also possible to simultaneously press in the vehicle existing controls, as an initialization option or actuation signal to use for other operations. Even then, additional set-up costs can be saved.

Claims (12)

Verfahren zur Erstbefüllung eines Kraftstoffsystems bei einem Kraftfahrzeug mit zumindest zwei Bedienelementen sowie einer den Kraftstoff fördernden Kraftstoffpumpe,
dadurch gekennzeichnet,
daß durch gleichzeitiges Betätigen von zumindest zwei im Fahrzeug vorhandenen Bedienelementen (10, 12) ein Betrieb der Kraftstoffpumpe (22) zur Befüllung des Kraftstoffsystems (26) ausgelöst wird.Method for the initial filling of a fuel system in a motor vehicle with at least two control elements and a fuel pump that delivers the fuel,
characterized,
that operation of the fuel pump (22) for filling the fuel system (26) is triggered by simultaneous actuation of at least two operating elements (10, 12) present in the vehicle. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß der Motor des Fahrzeugs während dieses Betriebs der Kraftstoffpumpe (22) stillsteht.Method according to claim 1,
characterized,
that the engine of the vehicle is stopped during this operation of the fuel pump (22). Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Betätigung der Kraftstoffpumpe (22) nur bei eingeschalteter Zündung durchführt wird.The method of claim 1 or 2,
characterized,
that the fuel pump (22) is actuated only when the ignition is switched on. Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß als Bedienelemente das Fahr- (12) und das Bremspedal (10) verwendet werden. Method according to one of claims 1 to 3,
characterized,
that the driving pedal (12) and the brake pedal (10) are used as controls. Verfahren nach Anspruch 4,
dadurch gekennzeichnet,
daß sowohl das Brems- (10) wie auch das Fahrpedal (12) vollständig durchgetreten werden.Method according to claim 4,
characterized,
that both the brake (10) and the accelerator pedal (12) are fully depressed. Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß eine solche Aktivierung der Kraftstoffpumpe (22) während eines Fahrzeuglebens nur eine begrenzte Anzahl mal, insbesondere einmal, möglich ist.Method according to one of claims 1 to 5,
characterized,
that such activation of the fuel pump (22) is possible only a limited number of times, in particular once, during a vehicle's life. Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß eine solche Aktivierung der Kraftstoffpumpe (22) nur innerhalb eines bestimmten Betriebsstunden- oder Kilometerbereichs des Fahrzeugs möglich ist.Method according to one of claims 1 to 5,
characterized,
that such activation of the fuel pump (22) is only possible within a certain operating hours or kilometer range of the vehicle. Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß eine solche Aktivierung der Kraftstoffpumpe (22) nur einmal innerhalb eines Fahrzyklusses möglich ist.Method according to one of claims 1 to 5,
characterized,
that such activation of the fuel pump (22) is possible only once within a driving cycle. Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Kraftstoffpumpe (22) nur über einen begrenzten Zeitraum betätigt wird.Method according to one of the preceding claims,
characterized,
that the fuel pump (22) is only operated for a limited period of time. Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Kraftstoffpumpe (22) gesperrt wird, solange die gleichzeitige Betätigung der Bedienelemente nicht durchgeführt ist. Method according to one of the preceding claims,
characterized,
that the fuel pump (22) is blocked as long as the simultaneous actuation of the controls is not performed. Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Kraftstoffpumpe (22) gesperrt wird, solange sie trocken läuft.Method according to one of the preceding claims,
characterized,
that the fuel pump (22) is blocked as long as it runs dry. Verfahren nach Anspruch 11,
dadurch gekennzeichnet,
daß auf den Trockenlauf über einen Tankbefüllungssensor oder die Betriebsdaten der Kraftstoffpumpe geschossen wird.A method according to claim 11,
characterized,
that the dry running is shot via a tank filling sensor or the operating data of the fuel pump.
EP00102371A 1999-03-09 2000-02-04 Method for filling a fuel system for the first time Expired - Lifetime EP1035320B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19910331A DE19910331A1 (en) 1999-03-09 1999-03-09 Procedure for the first filling of a fuel system
DE19910331 1999-03-09

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EP1035320A2 true EP1035320A2 (en) 2000-09-13
EP1035320A3 EP1035320A3 (en) 2001-01-31
EP1035320B1 EP1035320B1 (en) 2005-01-12

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EP (1) EP1035320B1 (en)
JP (1) JP2000265915A (en)
DE (2) DE19910331A1 (en)

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DE10315564A1 (en) * 2003-04-05 2004-10-28 Hella Kgaa Hueck & Co. Vehicle with function activated automatically at given speed, has facility to demonstrate function when stationary, by operation of two controls
DE102004024518A1 (en) * 2004-05-18 2005-12-15 Adam Opel Ag Starting process for a combustion engine especially an otto engine with inlet tube injection and evacuated fuel supply has two stages to provide the richest possible mixture
DE102005001189B4 (en) * 2005-01-10 2006-11-16 Daimlerchrysler Ag Circuit arrangement for a switching element for opening and closing a vehicle wing
DE102005031725A1 (en) * 2005-07-07 2007-01-18 Audi Ag Arrangement for release of parking brake in case of breakdown of normal connection, comprises use of combination of two already existing functions
DE102007029020A1 (en) 2007-06-23 2008-12-24 Dürr Somac GmbH Plant for vacuum pressure filling of assemblies with gaseous or liquid media
DE102009024965B4 (en) 2009-06-12 2021-03-18 Dürr Somac GmbH Filling device
US9228516B2 (en) * 2012-09-04 2016-01-05 GM Global Technology Operations LLC Fuel pump prime activated by door sensor

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Publication number Publication date
DE50009181D1 (en) 2005-02-17
EP1035320B1 (en) 2005-01-12
US6371736B1 (en) 2002-04-16
DE19910331A1 (en) 2000-09-14
JP2000265915A (en) 2000-09-26
EP1035320A3 (en) 2001-01-31

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