EP0870728B1 - Apparatus for distributing liquid fuel - Google Patents

Apparatus for distributing liquid fuel Download PDF

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Publication number
EP0870728B1
EP0870728B1 EP97105906A EP97105906A EP0870728B1 EP 0870728 B1 EP0870728 B1 EP 0870728B1 EP 97105906 A EP97105906 A EP 97105906A EP 97105906 A EP97105906 A EP 97105906A EP 0870728 B1 EP0870728 B1 EP 0870728B1
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EP
European Patent Office
Prior art keywords
fuel
computer
dispensing
pump
central computer
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.)
Expired - Lifetime
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EP97105906A
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German (de)
French (fr)
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EP0870728A1 (en
Inventor
Gerd Dr. Miller
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Scheidt and Bachmann GmbH
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Scheidt and Bachmann GmbH
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Publication date
Application filed by Scheidt and Bachmann GmbH filed Critical Scheidt and Bachmann GmbH
Priority to DE59712693T priority Critical patent/DE59712693D1/en
Priority to EP97105906A priority patent/EP0870728B1/en
Priority to AT97105906T priority patent/ATE332872T1/en
Priority to US08/932,290 priority patent/US5992474A/en
Publication of EP0870728A1 publication Critical patent/EP0870728A1/en
Application granted granted Critical
Publication of EP0870728B1 publication Critical patent/EP0870728B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
    • B67D7/0476—Vapour recovery systems
    • B67D7/0478—Vapour recovery systems constructional features or components
    • B67D7/048—Vapour flow control means, e.g. valves, pumps
    • B67D7/0482—Vapour flow control means, e.g. valves, pumps using pumps driven at different flow rates
    • B67D7/0486—Pumps driven in response to electric signals indicative of pressure, temperature or liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred

Definitions

  • the invention relates to a device for dispensing liquid fuels from at least one storage tank by means of at least one nozzle provided with a fuel nozzle, the fuel is supplied through a fuel pump with the interposition of a measuring unit with pulse generator to determine the amount of fuel, which escaping from the tank to be filled air Gas mixture is sucked off via a arranged on the fuel nozzle Gasansaugö réelle, which is connected by a opening in a storage tank gas recirculation line with a Gasabsaugpumpe and wherein the Meßaggregat a computer is associated, which is connected via a network to a central computer.
  • Such devices for dispensing liquid fuels are known. They usually include at least one storage tank for regular gasoline, premium grade petrol, Superplus and diesel and in each case several dispensers for each of these types of fuel. The quantities of fuel delivered and the associated prices are displayed on a display for each pump together with the respective basic price. In order to comply with the legal requirements, the air-gas mixture escaping from the fuel tank to be filled during refueling is sucked off and returned to a storage tank. The power of the gas suction pump used for this purpose is controlled as a function of the flow rate of the fuel determined by the measuring unit.
  • the invention has for its object to provide a device of the type described above for dispensing liquid fuels, which can be composed according to the needs of any number of similar modules with the lowest possible wiring and installation costs.
  • the solution of this problem by the invention is characterized in that in each Meßaggregat a computer is integrated, based on the pulses of the pulse generator automatically using the respective Meßaggregat associated information about fuel grade and basic price records, consisting of address, data and check for both the displays associated with the respective dispenser and for controlling the fuel flow-dependent suction power of the associated Gasabsaugpumpe as well as for the central computer of the gas station, which are supplied via the network the intrinsically intelligent aggregates, such as displays, the gas recirculation control and the central computer.
  • This embodiment of the invention has the advantage that the use of similar modules with intrinsically intelligent devices corresponding to the respective needs facilities can be put together, where it is only required before startup, the computer of each, identical units with one of the task corresponding software equip.
  • the inventive development is thus not only reduces installation costs, but also the storage, since each device is composed of similar modules that are adapted only by appropriate software of each task.
  • the network is preferably implemented as a BUS system CANBUS.
  • a serial data exchange between the intrinsically intelligent aggregates of the fuel dispensers and the central computer takes place via this network, in particular for function monitoring, fault diagnosis of the units and optionally for remote calibration of the measuring units.
  • the illustrated embodiment schematically shows a ground tank 1 for a liquid fuel, such as gasoline, which is sucked via a fuel line 2 by a pump 3, which is driven by a motor 4.
  • the speed of this motor 4 is controlled by a dispensing valve 5, which is arranged at the end of the fuel line 2 designed as a flexible dispensing hose 2 a.
  • the amount of each discharged fuel is determined by a arranged in a housing 6 measuring unit 7, which is arranged in the fuel line 2.
  • a formed on the nozzle 5 Gasansaugö réelle is connected via a gas return line 8 to the underground tank 1.
  • a Gasabsaugpumpe 9 is arranged, the suction power is controlled in proportion to the determined by the measuring unit 7 fuel flow.
  • this Gasabsaugpumpe 9 is driven by an electric motor 10 whose speed is controllable.
  • only one Gasabsaugpumpe 9 is arranged per side of each tap, since usually only one car can be refueled per page.
  • the measuring unit 7 is connected to a pulse generator 11, wherein the measuring unit 7 and the associated pulse generator 11 each have a computer 12 is assigned.
  • this calculator 12 which consists of measuring unit 7 and pulse generator 11 aggregate unit to an intrinsically intelligent aggregate, since the computer 12 is not only used to process the pulses of the pulse generator 11 to measurement data.
  • the computer 12 is supplied with information about the type of fuel and the basic price, so that the computer 12 automatically from the pulses of the pulse generator 11 and the information about the type of fuel and the base price from the user determined to be paid price for the amount of fuel removed and controls a network 15, a display 15, which displays the amount and the associated price of each delivered fuel in addition to the basic price of each existing in the Erdtank fuel grade, which usually per nozzle 5 an indication 15 is provided. At taps, where can be fueled from two sides, each dispensing valve 5, two displays 15 are assigned.
  • data sets for controlling the dependent of the fuel flow suction of the gas suction 9 or to control the associated electric motor 10 are generated by the computer.
  • the data sets generated by the computer 12 consist of an address to be addressed aggregate address, the data to be transmitted and a check-check, with which the mentioned aggregate can check whether the data transmitted to this unit data have arrived completely and correctly.
  • This transmission of the data records takes place via the network 14, which connects the individual aggregates with each other.
  • each aggregate connected to the network has its own computer, such as the computer 9a for the gas suction pump 9 or the computer 1 5a for the displays 15.
  • the data sets generated in the computer 12 are supplied to the computer 9a, which controls the speed of the gas suction 9 driving electric motor 10 such that their suction power is proportional to the determined by the measuring unit 7 fuel flow, so that via the nozzle. 5 an air-gas mixture amount is sucked, which corresponds exactly to the output by the nozzle 5 amount of fuel.
  • a price display 16 with associated computer 16a, a fuel terminal 17 and via remote data transmission at least one computer 18 for a service station and diagnostic center can be connected to the network 14.
  • Tankers 17 are provided at dispensers that are operated directly by cash or smart cards.
  • the eigenintelligente design of the individual units makes it possible that when a change in the price of fuel this, for example, directly via the central computer 13 of the gas station or an external computer 18 at the oil company, which communicates with the central computer 13, transmitted to the computer 12 of the measuring units 7 so that they automatically calculate the amount to be paid by the customer on the basis of the new fuel price at the next refueling operation.
  • the intrinsically intelligent design of the individual units allows a data exchange for diagnostic and service purposes, such as the function monitoring of the individual units and the monitoring of the levels of the individual underground tanks.
  • the function monitoring of the displays 15 and / or the price lists 16 via the corresponding computer 15a and 16a in that, for example, the numbers represented by individual bars are monitored in terms of electricity, d. H. that when switching between black and white, a current must flow. If this is not the case, notes the respective computer 15a and 16a, which controls the display 15 and the price table 16 that this number is defective and reports this defect to the central computer 13 of the tank and / or directly to the computer 18th the service station or diagnostic center.
  • the central computer 13 of the tank system and / or via a Remote data transmission line to be communicated to the computer of a central monitoring point can be decided by the central computer 13 of the tank system and / or by a central monitoring point (calibration office), whether the respective correction factor of the piston diameter of a measuring unit 7 in the associated computer 12 are changed after a calibration comparison for relevant deviations should. Since the switching of the controllable valves can be carried out within a short period of time during breaks, a review of the measuring units 7 is possible at any time, without the staff of the calibration office must visit the individual tanks.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

The individual dispensing guns (5) for the liquid fuel are connected to the reservoir (1) by a pump (3) and a metering system (6). A processor (12) fitted to the metering system is linked to a central computer (13) by a data bus to give information on the amount of fuel dispensed and the type of fuel. The separate dispensing points are fitted with display modules (15) which indicate the amount and value of the fuel dispensed as well as the type of fuel selected and the unit price. These modules are controlled from the central computer by the data bus. The dispensing point also has a fuel vapour return line (8) from the dispensing gun. This returns fuel vapour to the reservoir via a compressing pump (9). The amount of fuel returned to the tank is metered and a corresponding correction is made to the total amount of fuel dispensed. The operation of the return pump is linked to the dispensing rate for liquid fuel.

Description

Die Erfindung betrifft eine Einrichtung zur Abgabe flüssiger Kraftstoffe aus mindestens einem Lagertank mittels mindestens eines mit einer Zapfpistole versehenen Zapfschlauches, dem der Kraftstoff durch eine Kraftstoffpumpe unter Zwischenschaltung eines Meßaggregates mit Impulsgeber zur Ermittlung der Kraftstoffmenge zugeführt wird, wobei das aus dem zu befüllenden Tank entweichende Luft-Gas-Gemisch über eine an der Zapfpistole angeordnete Gasansaugöffnung abgesaugt wird, die durch eine in einem Lagertank mündende Gasrückführleitung mit einer Gasabsaugpumpe verbunden ist und wobei dem Meßaggregat ein Rechner zugeordnet ist, der über ein Netzwerk mit einem Zentralrechner verbunden ist.The invention relates to a device for dispensing liquid fuels from at least one storage tank by means of at least one nozzle provided with a fuel nozzle, the fuel is supplied through a fuel pump with the interposition of a measuring unit with pulse generator to determine the amount of fuel, which escaping from the tank to be filled air Gas mixture is sucked off via a arranged on the fuel nozzle Gasansaugöffnung, which is connected by a opening in a storage tank gas recirculation line with a Gasabsaugpumpe and wherein the Meßaggregat a computer is associated, which is connected via a network to a central computer.

Derartige Einrichtungen zur Abgabe flüssiger Kraftstoffe sind bekannt. Sie umfassen üblicherweise mindestens einen Lagertank für Normalbenzin, Superbenzin, Superplus und Diesel und jeweils mehrere Zapfsäulen für jede dieser Kraftstoffsorten. Die jeweils abgegebenen Kraftstoffmengen und die zugehörigen Preise werden für jede Zapfsäule zusammen mit dem jeweiligen Grundpreis auf einer Anzeige angezeigt. Zur Erfüllung der gesetzlichen Vorschriften wird das aus dem zu befüllenden Kraftstofftank beim Tanken entweichende Luft-Gas-Gemisch abgesaugt und in einen Lagertank zurückgeführt. Die Leistung der hierfür verwendeten Gasabsaugpumpe wird in Abhängigkeit der vom Meßaggregat ermittelten Fließgeschwindigkeit des Kraftstoffes gesteuert.Such devices for dispensing liquid fuels are known. They usually include at least one storage tank for regular gasoline, premium grade petrol, Superplus and diesel and in each case several dispensers for each of these types of fuel. The quantities of fuel delivered and the associated prices are displayed on a display for each pump together with the respective basic price. In order to comply with the legal requirements, the air-gas mixture escaping from the fuel tank to be filled during refueling is sucked off and returned to a storage tank. The power of the gas suction pump used for this purpose is controlled as a function of the flow rate of the fuel determined by the measuring unit.

Bei den bekannten Einrichtungen zur Abgabe flüssiger Kraftstoffe werden jeweils auf den speziellen Einsatzzweck abgestimmte Aggregate verwendet, insbesondere Kraftstoffpumpen, Meßaggregate und Gasabsaugpumpen. Ein Beispiel für eine solche Einrichtung zeigt die EP 0 678 476 A1. Die von den jedem Meßaggregat zugeordneten Impulsgebern erzeugten Impulse werden zentral in einem Zapfsäulen-Rechner verarbeitet, der seinerseits die Absaugpumpen sowie die Anzeigen steuert. Hierdurch ergibt sich nicht nur ein erheblicher Verdrahtungsaufwand zwischen dem zentralen Zapfsäulen-Rechner und den einzelnen Aggregaten, sondern auch eine erhebliche Lagerhaltung der unterschiedlich ausgelegten Zapfsäulen-Rechner je Anwendungsfall in Abhängigkeit von der Anzahl der Kraftstoffsorten, Pumpen und Anzeigen.In the known devices for dispensing liquid fuels in each case tailored to the specific application aggregates are used, in particular Fuel pumps, gauges and Gasabsaugpumpen. An example of such a device is shown in EP 0 678 476 A1. The pulses generated by each pulse generator pulses are processed centrally in a dispenser computer, which in turn controls the suction pumps and the displays. This results in not only a considerable amount of wiring between the central dispenser computer and the individual units, but also a significant storage of differently designed dispenser computers per application, depending on the number of fuel types, pumps and displays.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung der eingangs beschriebenen Art zur Abgabe flüssiger Kraftstoffe zu schaffen, die aus einer beliebigen Anzahl gleichartiger Module mit geringstmöglichem Verdrahtungs- und Installationsaufwand dem jeweiligen Bedarf entsprechend zusammengestellt werden kann.The invention has for its object to provide a device of the type described above for dispensing liquid fuels, which can be composed according to the needs of any number of similar modules with the lowest possible wiring and installation costs.

Die Lösung dieser Aufgabenstellung durch die Erfindung ist dadurch gekennzeichnet, daß in jedem Meßaggregat ein Rechner integriert ist, der aufgrund der Impulse des Impulsgebers selbsttätig unter Verwendung der dem jeweiligen Meßaggregat zugeordneten Informationen über Kraftstoffsorte und Grundpreis Datensätze, bestehend aus Adresse, Daten und Check sowohl für die der jeweiligen Zapfsäule zugeordneten Anzeigen und für die Steuerung der vom Kraftstofffluß abhängigen Saugleistung der zugehörigen Gasabsaugpumpe als auch für den Zentralrechner der Tankstelle erstellt, die über das Netzwerk den eigenintelligenten Aggregaten, wie Anzeigen, der Gasrückführungssteuerung und dem Zentralrechner zugeführt werden.The solution of this problem by the invention is characterized in that in each Meßaggregat a computer is integrated, based on the pulses of the pulse generator automatically using the respective Meßaggregat associated information about fuel grade and basic price records, consisting of address, data and check for both the displays associated with the respective dispenser and for controlling the fuel flow-dependent suction power of the associated Gasabsaugpumpe as well as for the central computer of the gas station, which are supplied via the network the intrinsically intelligent aggregates, such as displays, the gas recirculation control and the central computer.

Durch diese erfindungsgemäße Ausbildung ergibt sich der Vorteil, daß durch die Verwendung gleichartiger Module mit eigenintelligenten Aggregaten dem jeweiligen Bedarf entsprechende Einrichtungen zusammengestellt werden können, wobei es vor der Inbetriebnahme lediglich erforderlich ist, die Rechner der einzelnen, identischen Aggregate mit einer der jeweiligen Aufgabe entsprechenden Software auszustatten. Durch die erfindungsgemäße Weiterbildung wird somit nicht nur der Installationsaufwand reduziert, sondern auch die Lagerhaltung, da jede Einrichtung aus gleichartigen Modulen zusammengestellt wird, die lediglich durch entsprechende Software der jeweiligen Aufgabe angepaßt werden.This embodiment of the invention has the advantage that the use of similar modules with intrinsically intelligent devices corresponding to the respective needs facilities can be put together, where it is only required before startup, the computer of each, identical units with one of the task corresponding software equip. The inventive development is thus not only reduces installation costs, but also the storage, since each device is composed of similar modules that are adapted only by appropriate software of each task.

Gemäß einem weiteren Merkmal der Erfindung wird das Netzwerk als BUS-System vorzugsweise CANBUS ausgeführt.According to a further feature of the invention, the network is preferably implemented as a BUS system CANBUS.

Über dieses Netzwerk erfolgt erfindungsgemäß ein serieller Datenaustausch zwischen den eigenintelligenten Aggregaten der Zapfsäulen und des Zentralrechners, insbesondere zur Funktionsüberwachung, Fehlerdiagnose der Aggregate sowie gegebenenfalls zur Ferneichung der Meßaggregate.According to the invention, a serial data exchange between the intrinsically intelligent aggregates of the fuel dispensers and the central computer takes place via this network, in particular for function monitoring, fault diagnosis of the units and optionally for remote calibration of the measuring units.

Gemäß einem weiteren Merkmal ist es schließlich möglich, die Daten der Einrichtung über eine Datenfernübertragung an Servicestationen und Diagnosezentralen zu übertragen, um beispielsweise die Füllstände der Lagertanks zwecks eines rechtzeitigen Nachfüllens zu kontrollieren, die Grundpreiseinstellung der in den Meßaggregaten integrierten Rechnern und am Preistableau verändern zu können und sich aus der Diagnose ergebende Reparaturen schnellstmöglich durchzuführen.According to a further feature, it is finally possible to transmit the data of the device via a remote data transmission to service stations and diagnostic centers, for example, to control the filling levels of the storage tanks for the purpose of timely refilling, to be able to change the base price setting of the computers integrated in the measuring units and the price tableau and perform diagnostics-related repairs as soon as possible.

Auf der Zeichnung ist ein Ausführungsbeispiel einer erfindungsgemäßen Einrichtung schematisch dargestellt.In the drawing, an embodiment of a device according to the invention is shown schematically.

Das dargestellte Ausführungsbeispiel zeigt schematisch einen Erdtank 1 für einen flüssigen Kraftstoff, beispielsweise Benzin, der über eine Kraftstoffleitung 2 durch eine Pumpe 3 angesaugt wird, die von einem Motor 4 angetrieben wird. Die Drehzahl dieses Motors 4 wird durch ein Zapfventil 5 gesteuert, das am Ende der als flexibler Zapfschlauch 2a ausgebildeten Kraftstoffleitung 2 angeordnet ist. Die Menge des jeweils abgegebenen Kraftstoffes wird durch ein in einem Gehäuse 6 angeordnetes Meßaggregat 7 ermittelt, das in der Kraftstoffleitung 2 angeordnet ist.The illustrated embodiment schematically shows a ground tank 1 for a liquid fuel, such as gasoline, which is sucked via a fuel line 2 by a pump 3, which is driven by a motor 4. The speed of this motor 4 is controlled by a dispensing valve 5, which is arranged at the end of the fuel line 2 designed as a flexible dispensing hose 2 a. The amount of each discharged fuel is determined by a arranged in a housing 6 measuring unit 7, which is arranged in the fuel line 2.

Um zu verhindern, daß das durch das Einfüllen des Kraftstoffes in den zu befüllenden Tank aus diesem entweichende Luft-Gas-Gemisch in die Atmosphäre entweicht, ist eine an dem Zapfventil 5 ausgebildete Gasansaugöffnung über eine Gasrückführleitung 8 mit dem Erdtank 1 verbunden. In dieser Gasrückführleitung 8 ist eine Gasabsaugpumpe 9 angeordnet, deren Saugleistung proportional zu dem vom Meßaggregat 7 ermittelten Kraftstofffluß gesteuert wird. Beim dargestellten Ausführungsbeispiel wird diese Gasabsaugpumpe 9 durch einen Elektromotor 10 angetrieben, dessen Drehzahl steuerbar ist. In der Regel ist pro Seite einer jeden Zapfstelle nur eine Gasabsaugpumpe 9 angeordnet, da pro Seite in der Regel nur ein Auto betankt werden kann.In order to prevent the escape of the escaping through the filling of the fuel in the fuel tank from this escaping air-gas mixture into the atmosphere, a formed on the nozzle 5 Gasansaugöffnung is connected via a gas return line 8 to the underground tank 1. In this gas return line 8, a Gasabsaugpumpe 9 is arranged, the suction power is controlled in proportion to the determined by the measuring unit 7 fuel flow. In the illustrated embodiment, this Gasabsaugpumpe 9 is driven by an electric motor 10 whose speed is controllable. In general, only one Gasabsaugpumpe 9 is arranged per side of each tap, since usually only one car can be refueled per page.

Das Meßaggregat 7 ist mit einem Impulsgeber 11 verbunden, wobei dem Meßaggregat 7 sowie dem zugehörigen Impulsgeber 11 jeweils ein Rechner 12 zugeordnet ist. Durch diesen Rechner 12 wird die aus Meßaggregat 7 und Impulsgeber 11 bestehende Aggregateinheit zu einem eigenintelligenten Aggregat, da der Rechner 12 nicht nur dazu dient, die Impulse des Impulsgebers 11 zu Meßdaten zu verarbeiten. Über einen Zentralrechner 13, der an der Tankstelle angeordnet ist, wird der Rechner 12 mit Informationen über die Kraftstoffsorte und den Grundpreis versorgt, so daß der Rechner 12 selbsttätig aus den Impulsen des Impulsgebers 11 und den Informationen über die Kraftstoffsorte sowie den Grundpreis den vom Benutzer zu bezahlenden Preis für die entnommene Kraftstoffmenge ermittelt und über ein Netzwerk 14 eine Anzeige 15 steuert, die neben dem Grundpreis der jeweils im Erdtank 1 vorhandenen Kraftstoffsorte die Menge und den zugehörigen Preis des jeweils abgegebenen Kraftstoffes anzeigt, wobei in der Regel pro Zapfventil 5 eine Anzeige 15 vorgesehen ist. Bei Zapfstellen, an denen von zwei Seiten getankt werden kann, sind jedem Zapfventil 5 zwei Anzeigen 15 zugeordnet.The measuring unit 7 is connected to a pulse generator 11, wherein the measuring unit 7 and the associated pulse generator 11 each have a computer 12 is assigned. By this calculator 12 which consists of measuring unit 7 and pulse generator 11 aggregate unit to an intrinsically intelligent aggregate, since the computer 12 is not only used to process the pulses of the pulse generator 11 to measurement data. About a central computer 13, which is located at the gas station, the computer 12 is supplied with information about the type of fuel and the basic price, so that the computer 12 automatically from the pulses of the pulse generator 11 and the information about the type of fuel and the base price from the user determined to be paid price for the amount of fuel removed and controls a network 15, a display 15, which displays the amount and the associated price of each delivered fuel in addition to the basic price of each existing in the Erdtank fuel grade, which usually per nozzle 5 an indication 15 is provided. At taps, where can be fueled from two sides, each dispensing valve 5, two displays 15 are assigned.

Neben der Erstellung von Datensätzen zur Steuerung der Anzeigen 15 werden vom Rechner 12 Datensätze zur Steuerung der vom Kraftstofffluß abhängigen Saugleistung der Gasabsaugpumpe 9 bzw. zur Regelung des zugehörigen Elektromotors 10 erzeugt. Die von dem Rechner 12 erzeugten Datensätze bestehen aus einer das anzusprechende Aggregat kennzeichnenden Adresse, den zu übermittelnden Daten sowie einen Kontroll-Check, mit dem das angesprochene Aggregat überprüfen kann, ob die an dieses Aggregat übermittelten Daten vollständig und richtig angekommen sind. Diese Übermittlung der Datensätze erfolgt über das Netzwerk 14, welches die einzelnen Aggregate miteinander verbindet. Um die über das Netzwerk 14 versandten Datensätze lesen und auswerten zu können, weist jedes an das Netzwerk angeschlossene Aggregat einen eigenen Rechner auf, wie beispielsweise den Rechner 9a für die Gasabsaugpumpe 9 oder die Rechner 1 5a für die Anzeigen 1 5.In addition to the creation of records for controlling the display 15 12 data sets for controlling the dependent of the fuel flow suction of the gas suction 9 or to control the associated electric motor 10 are generated by the computer. The data sets generated by the computer 12 consist of an address to be addressed aggregate address, the data to be transmitted and a check-check, with which the mentioned aggregate can check whether the data transmitted to this unit data have arrived completely and correctly. This transmission of the data records takes place via the network 14, which connects the individual aggregates with each other. In order to be able to read and evaluate the data records sent via the network 14, each aggregate connected to the network has its own computer, such as the computer 9a for the gas suction pump 9 or the computer 1 5a for the displays 15.

So werden beispielsweise über das Netzwerk 14 die im Rechner 12 erzeugten Datensätze dem Rechner 9a zugeführt, der die Drehzahl des die Gasabsaugpumpe 9 antreibenden Elektromotors 10 derart steuert, daß deren Saugleistung proportional zu dem vom Meßaggregat 7 ermittelten Kraftstofffluß ist, so daß über das Zapfventil 5 eine Luft-Gas-Gemischmenge angesaugt wird, die exakt der durch das Zapfventil 5 ausgegebenen Kraftstoffmenge entspricht.Thus, for example, via the network 14, the data sets generated in the computer 12 are supplied to the computer 9a, which controls the speed of the gas suction 9 driving electric motor 10 such that their suction power is proportional to the determined by the measuring unit 7 fuel flow, so that via the nozzle. 5 an air-gas mixture amount is sucked, which corresponds exactly to the output by the nozzle 5 amount of fuel.

Wie aus der Abbildung ersichtlich, können an das Netzwerk 14 als weitere Aggregate beispielsweise ein Preistableau 16 mit zugehörigem Rechner 16a, ein Tankautomat 17 sowie per Datenfernübertragung mindestens ein Rechner 18 für eine Servicestation und Diagnosezentrale angeschlossen sein. Tankautomaten 17 sind an Zapfsäulen vorgesehen, die direkt mit Bargeld oder Chipkarten bedient werden.As can be seen from the figure, as a further aggregates, for example, a price display 16 with associated computer 16a, a fuel terminal 17 and via remote data transmission, at least one computer 18 for a service station and diagnostic center can be connected to the network 14. Tankers 17 are provided at dispensers that are operated directly by cash or smart cards.

Durch die Verwendung des als BUS-System aufgebauten Netzwerkes 14, über das die von den einzelnen Rechnern der Aggregate erzeugten Datensätze übermittelt werden, wird die aus dem Stand der Technik bekannte aufwendige Einzelverdrahtung jedes einzelnen Aggregats mit einem jeden anderen Aggregat überflüssig, da die von den Rechnern erzeugten Datensätze einen Adreß-Datensatz erhalten, so daß jeder über das Netzwerk 14 übermittelte Datensatz nur von dem Aggregat-Rechner empfangen und weiterverarbeitet werden kann, für den eben dieser Datensatz aufgrund der Adressierung bestimmt ist. Über den Check-Datensatz kann der den Datensatz empfangene Aggregat-Rechner feststellen, ob der empfangene Datensatz vollständig übermittelt wurde. Den Empfang des Datensatzes bestätigt der jeweilige Aggregat-Rechner durch einen entsprechend adressierten Datensatz an den Ausgangs-Rechner.By using the built-up as a BUS system network 14 through which the records generated by the individual computers of the aggregates are transmitted, which is known from the prior art consuming single wiring of each unit with any other unit superfluous, since the Computers generated records receive an address record, so that each transmitted via the network 14 data set can only be received and processed by the aggregate computer, for the same this record is determined due to the addressing. Using the check data record, the aggregate computer receiving the data record can determine whether the received data record has been completely transmitted. The respective aggregate computer confirms receipt of the data record by a correspondingly addressed data record to the output computer.

Die eigenintelligente Auslegung der einzelnen Aggregate ermöglicht es, daß bei einer Änderung des Kraftstoffpreises dieser, beispielsweise direkt über den Zentralrechner 13 der Tankstelle oder einen externen Rechner 18 beim Mineralölunternehmen, der mit dem Zentralrechner 13 in Verbindung steht, an die Rechner 12 der Meßaggregate 7 übermittelt wird, so daß diese selbsttätig beim nächsten Betankungsvorgang den vom Kunden zu bezahlenden Betrag auf Grundlage des neuen Kraftstoffpreises errechnen.The eigenintelligente design of the individual units makes it possible that when a change in the price of fuel this, for example, directly via the central computer 13 of the gas station or an external computer 18 at the oil company, which communicates with the central computer 13, transmitted to the computer 12 of the measuring units 7 so that they automatically calculate the amount to be paid by the customer on the basis of the new fuel price at the next refueling operation.

Weiterhin ermöglicht die eigenintelligente Auslegung der einzelnen Aggregate einen Datenaustausch zu Diagnose- und Servicezwecken, wie beispielsweise der Funktionsüberwachung der einzelnen Aggregate sowie der Überwachung der Füllstände der einzelnen Erdtanks 1.Furthermore, the intrinsically intelligent design of the individual units allows a data exchange for diagnostic and service purposes, such as the function monitoring of the individual units and the monitoring of the levels of the individual underground tanks. 1

Die Funktionsüberwachung der Anzeigen 15 und/oder der Preistableaus 16 erfolgt über die entsprechenden Rechner 15a bzw. 16a dadurch, daß beispielsweise die durch einzelne Balken dargestellten Ziffern strommäßig überwacht werden, d. h. daß beim Umschalten zwischen schwarz/weiß ein Strom fließen muß. Wenn dies nicht der Fall ist, merkt der jeweilige Rechner 15a bzw. 16a, der die Anzeige 15 bzw. das Preistableau 16 ansteuert, daß diese Ziffer defekt ist und meldet diesen Defekt an den Zentralrechner 13 der Tankanlage und/oder direkt an den Rechner 18 der Servicestation bzw. Diagnosezentrale.The function monitoring of the displays 15 and / or the price lists 16 via the corresponding computer 15a and 16a in that, for example, the numbers represented by individual bars are monitored in terms of electricity, d. H. that when switching between black and white, a current must flow. If this is not the case, notes the respective computer 15a and 16a, which controls the display 15 and the price table 16 that this number is defective and reports this defect to the central computer 13 of the tank and / or directly to the computer 18th the service station or diagnostic center.

Ist der Rechner 15a der Anzeige 15 defekt, so wird dieser Defekt vom Rechner 12 des Meßaggregats 7 registriert, da dieser Rechner nach der Ansteuerung des Rechners 15a keine entsprechende Rückmeldung über den Empfang des übermittelten Datensatzes erhält. Daraufhin wird vom Rechner 12 eine Fehlermeldung an den Zentralrechner 13 der Tankanlage und/oder den Rechner 18 der Servicestation/Diagnosezentrale übermittelt.If the computer 15a of the display 15 is defective, then this defect is registered by the computer 12 of the measuring unit 7, since this computer receives no corresponding feedback on the reception of the transmitted data set after the control of the computer 15a. An error message is then transmitted from the computer 12 to the central computer 13 of the tank system and / or the computer 18 of the service station / diagnostic center.

Ebenso ist es möglich, die Funktionen anderer Aggregate, beispielsweise des Elektromotors 10 der Gasabsaugpumpe 9 oder des Meßaggregates 7 zu überwachen. Im konkreten Fall bedeutet dies, daß bei einem Versagen beispielsweise des Elektromotors 10 der Gasabsaugpumpe 9, dessen Drehen überwacht wird, der Rechner 9a keine entsprechende Rückmeldung an den die Gasabsaugpumpe 9 steuernden Rechner 12 des Meßaggregats 7 übermittelt. Bei einem Fehler im Meßaggregat 7 registriert der Rechner 12, daß das Zapfventil 5 entnommen wurde und der Motor 4 der Pumpe 3 in Funktion ist, jedoch keine Impulse vom Impulsgeber 11 empfangen werden. Dieser registrierte Fehler wird ebenfalls an den Zentralrechner 13 der Tankanlage und/oder den Rechner 18 der Servicestation/Diagnosezentrale übermittelt.It is likewise possible to monitor the functions of other units, for example of the electric motor 10 of the gas suction pump 9 or of the measuring unit 7. In the specific case, this means that in case of failure of, for example, the electric motor 10 of the gas suction pump 9, whose rotation is monitored, the computer 9 a no corresponding feedback to the gas suction pump 9 controlling computer 12 of the measuring unit 7 transmitted. In case of an error in the measuring unit 7, the computer 12 registers that the dispensing valve 5 has been removed and the motor 4 of the pump 3 is in operation, but no pulses are received from the pulse generator 11. This registered error is also transmitted to the central computer 13 of the tank system and / or the computer 18 of the service station / diagnostic center.

Welche Konsequenzen aus einer Fehlermeldung gezogen werden, hängt im wesentlichen von der Art des Fehlers und der Funktion des überwachten Aggregats ab. Während es bei einzelnen Fehlern, wie beispielsweise einem Fehler im Meßaggregat 7 notwendig ist, die betreffende Anlage sofort abzuschalten, genügt es beispielsweise bei einem Fehler am Preistableau 16, daß beispielsweise über Datenfernübertragung eine Fehlermeldung an den Rechner 18 der Servicestation/Diagnosezentrale bei der Wartungsfirma oder bei der Mineralölgesellschaft übermittelt wird.The consequences of an error message depend essentially on the type of fault and the function of the monitored unit. While it is necessary for individual errors, such as an error in the measuring unit 7, the facility concerned immediately shut down, it is sufficient, for example, in an error on the price table 16 that, for example via remote data transmission an error message to the computer 18 of the service station / diagnostic center at the maintenance company or is transmitted to the oil company.

Neben diesen beschriebenen Vorteilen der Ausstattung einer Tankanlage mit eigenintelligenten Aggregaten bietet sich noch die Möglichkeit, diese eigenintelligenten Aggregate auch zur Durchführung von Ferneichungen einzusetzen. Voraussetzung hierfür ist jedoch, daß (nicht dargestellte) steuerbare Ventile vorhanden sind. Im Zuge der in regelmäßigen Abständen stattfindenden Eichungen soll überprüft werden, ob die tatsächlich abgegebene Flüssigkeitsmenge mit der vom Impulsgeber 11 ermittelten Flüssigkeitsmenge übereinstimmt. Um aufgrund unvermeidbarer Fertigungstoleranzen entstehende Abweichungen zwischen der tatsächlich abgegebenen Flüssigkeitsmenge und der vom Impulsgeber 11 ermittelten Menge zu berücksichtigen, sind in jedem Rechner 12 eines als Kolbenmesser ausgelegten Meßaggregats 7 Korrekturfaktoren gespeichert, die die individuellen Fertigungstoleranzen des jeweiligen Meßaggregats 7 berücksichtigen.In addition to these described advantages of equipping a tank system with intrinsically intelligent aggregates, it is still possible to use these intrinsically intelligent units also for carrying out remote calibrations. However, the prerequisite for this is that (not shown) controllable valves are present. In the course of periodically performed calibrations should be checked whether the actual amount of liquid dispensed coincides with the determined by the pulser 11 amount of liquid. In order to take account of deviations between the actual quantity of liquid dispensed and the quantity determined by the pulse generator 11 due to unavoidable manufacturing tolerances, correction factors are stored in each computer 12 of a measuring unit designed as a piston meter which take into account the individual manufacturing tolerances of the respective measuring unit 7.

Um zu Eichzwecken einen Kolbenmesser eines Meßaggregats 7 hinsichtlich vorhandener, vorzugsweise durch Verschleiß entstandener Abweichungen überprüfen zu können, ist es notwendig, durch geeignete Schaltung der steuerbaren Ventile zwei Meßaggregate 7 so mit einer gemeinsamen Kraftstoffpumpe 3 zu verschalten, daß die von der Kraftstoffpumpe 3 geförderte Kraftstoffmenge zuerst durch den Kolbenmesser des ersten Meßaggregats 7 und anschließend durch den Kolbenmesser des zweiten Meßaggregats 7 gefördert wird. Die zu den Eichzwecken geförderte Kraftstoffmenge wird über eine (nicht dargestellte) Bypass-Schaltung zurück in den Erdtank 1 gefördert. Mit Hilfe der jedem Meßaggregat 7 zugeordneten Impulsgeber 11 wird in den Rechnern 12 die das jeweilige Meßaggregat 7 durchströmende Flüssigkeitsmenge ermittelt. Sollten sich bei dieser Überprüfung Abweichungen zwischen den mittels der beiden Meßaggregaten 7 ermittelten Flüssigkeitsmengen ergeben, werden diese im Zentralrechner 13 der Tankanlage und/oder einer mit der Tankanlage über eine Datenfernübertragungsleitung verbundenen Eichzentrale festgestellt und - bei Überschreitung eines gewissen Toleranzwertes - zur Veränderung des jeweiligen Korrekturfaktors benutzt, der im Rechner 12 für jeden Kolbenmesser eines Meßaggregats 7 abgespeichert ist.In order to be able to check for calibration purposes a piston meter of a measuring unit 7 with respect to existing, preferably due to wear deviations, it is necessary to connect by appropriate circuit of the controllable valves two measuring units 7 with a common fuel pump 3, that funded by the fuel pump 3 amount of fuel is first conveyed by the piston diameter of the first measuring unit 7 and then by the piston diameter of the second measuring unit 7. The quantity of fuel delivered for the calibration purposes is conveyed back into the underground tank 1 via a bypass circuit (not shown). With the help of each measuring unit 7 associated with pulse generator 11, the respective measuring unit 7 by flowing liquid amount is determined in the computers 12. If, during this check, deviations occur between the quantities of liquid determined by the two measuring units 7, these are detected in the central computer 13 of the tank system and / or a calibration center connected to the tank system via a remote data transmission line and - if a certain tolerance value is exceeded - for changing the respective correction factor used, which is stored in the computer 12 for each piston meter of a measuring unit 7.

Da die Meßergebnisse der Überprüfung über das Netzwerk 14 dem Zentralrechner 13 der Tankanlage und/oder über eine Datenfernübertragungsleitung dem Rechner einer zentralen Überwachungsstelle mitgeteilt werden, kann vom Zentralrechner 13 der Tankanlage aus und/oder von einer zentralen Überwachungsstelle (Eichamt) entschieden werden, ob nach einem Eichwertvergleich bei relevanten Abweichungen der jeweilige Korrekturfaktor des Kolbenmessers eines Meßaggregats 7 im zugehörigen Rechner 12 verändert werden soll. Da die Umschaltung der steuerbaren Ventile kurzfristig innerhalb von Betriebspausen durchgeführt werden kann, ist jederzeit eine Überprüfung der Meßaggregate 7 möglich, ohne daß das Personal des Eichamtes die einzelnen Tankanlagen aufsuchen muß.Since the measurement results of the review over the network 14 the central computer 13 of the tank system and / or via a Remote data transmission line to be communicated to the computer of a central monitoring point, can be decided by the central computer 13 of the tank system and / or by a central monitoring point (calibration office), whether the respective correction factor of the piston diameter of a measuring unit 7 in the associated computer 12 are changed after a calibration comparison for relevant deviations should. Since the switching of the controllable valves can be carried out within a short period of time during breaks, a review of the measuring units 7 is possible at any time, without the staff of the calibration office must visit the individual tanks.

Insgesamt ist somit festzustellen, daß durch die Verwendung gleichartiger Module mit eigenintelligenten Aggregaten einerseits der Installationsaufwand deutlich reduziert wird und andererseits die Wartung der Einrichtung sowie die Diagnose von Fehlern erheblich erleichtert wird.Overall, it should be noted that the use of similar modules with intrinsically intelligent aggregates on the one hand the installation cost is significantly reduced and on the other hand, the maintenance of the device and the diagnosis of errors is greatly facilitated.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
ErdtankUnderground tank
22
KraftstoffleitungFuel line
2a2a
Zapfschlauchfilling hose
33
Pumpepump
44
Motorengine
55
Zapfventilnozzle
66
Gehäusecasing
77
MeßaggregatMeßaggregat
88th
GasrückführleitungGas recirculation line
99
Gasabsaugpumpevapor pump
9a9a
Rechnercomputer
1010
Elektromotorelectric motor
1111
Impulsgeberpulse
1212
Rechnercomputer
1313
Zentralrechnermainframe
1414
Netzwerknetwork
1515
Anzeigedisplay
15a15a
Rechnercomputer
1616
PreistableauPrice tableau
16a16a
Rechnercomputer
1717
Tankautomatfuel Terminal
1818
externer Rechnerexternal computer

Claims (4)

  1. Apparatus for dispensing liquid fuel from at least one storage tank (1) by means of at least one dispensing hose (2a), which is provided with a dispensing nozzle (5) and to which the fuel is supplied by a fuel pump (3) via a measuring unit (7) with a pulse transmitter (11) for determining the amount of fuel, the air/gas mixture escaping from the tank to be filled being exhausted via a gas exhaust opening arranged on the dispensing nozzle (5), which is connected to a gas exhaust pump (9) via a gas return line (8) communicating with the storage tank (1) and a computer (12) being associated with the measuring device (7), which is connected via a network (14) to a central computer (13), characterised in that integrated into each measuring device (7) there is a computer (12) which, on the basis of the pulses from the pulse transmitter (11) using the information associated with the respective measuring unit (7) relating to type of fuel and basic price, produces data sets, consisting of address, data and check not only for the displays (15) associated with the respective dispensing pump and for the control of the suction capacity of the associated gas exhaust pump (9) dependent on the fuel flow but also for the central computer (13) of the filling station, which data sets are supplied via the network (14) to the units with independent processing ability, such as the displays (15), the gas recycling controller and the central computer (13).
  2. Apparatus as claimed in Claim 1, characterised in that the network is constructed in the form of a BUS system, preferably CANBUS.
  3. Apparatus as claimed in Claim 1 or 2, characterised in that a serial data exchange occurs via the network (14) between the units having independent processing capability of the dispensing pumps and the central computer (13), particularly for functional monitoring, error diagnostics of the units and optionally for remote calibration of the measuring units (7).
  4. Apparatus as claimed in at least one of Claims 1 to 3, characterised in that the data from the apparatus may be transmitted via a data transmission system to at least one service station and diagnostic centre.
EP97105906A 1997-04-10 1997-04-10 Apparatus for distributing liquid fuel Expired - Lifetime EP0870728B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59712693T DE59712693D1 (en) 1997-04-10 1997-04-10 Device for dispensing liquid fuels
EP97105906A EP0870728B1 (en) 1997-04-10 1997-04-10 Apparatus for distributing liquid fuel
AT97105906T ATE332872T1 (en) 1997-04-10 1997-04-10 DEVICE FOR DISPENSING LIQUID FUELS
US08/932,290 US5992474A (en) 1997-04-10 1997-09-17 Device for dispensing liquid fluids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97105906A EP0870728B1 (en) 1997-04-10 1997-04-10 Apparatus for distributing liquid fuel

Publications (2)

Publication Number Publication Date
EP0870728A1 EP0870728A1 (en) 1998-10-14
EP0870728B1 true EP0870728B1 (en) 2006-07-12

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EP97105906A Expired - Lifetime EP0870728B1 (en) 1997-04-10 1997-04-10 Apparatus for distributing liquid fuel

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US (1) US5992474A (en)
EP (1) EP0870728B1 (en)
AT (1) ATE332872T1 (en)
DE (1) DE59712693D1 (en)

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NL1016670C1 (en) * 2000-11-21 2002-05-22 Andru Sylvere Joseph V Coillie Fuel delivery device with vapor extraction.
FR2823881B1 (en) * 2001-04-20 2004-09-17 Sellco Sa DEVICE FOR MONITORING AND MANAGING THE SUPPLY AND DISTRIBUTION OF FUELS IN FUEL STATIONS
US6648032B1 (en) 2002-06-13 2003-11-18 Orpak Industries (1983) Ltd. Apparatus and method for facilitating fueling a vehicle
US7260499B2 (en) * 2002-08-20 2007-08-21 Fe Petro Inc. Fuel delivery system with enhanced functionality and diagnostic capability
US6715514B2 (en) 2002-09-07 2004-04-06 Worldwide Liquids Method and apparatus for fluid transport, storage and dispensing
EP1695231A2 (en) * 2003-10-28 2006-08-30 Vst International, Inc. Audio/video display equipment for gas pumps
US8707932B1 (en) 2010-08-27 2014-04-29 Paragon Products, Llc Fuel transfer pump system
US10738727B2 (en) 2015-02-03 2020-08-11 Paragon Products, Llc Electric pump pressure sensorless electronic pressure limiting and flow leveling system

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US4360877A (en) * 1980-04-08 1982-11-23 Tokheim Corporation Distributed data processing system and method for a fluid dispenser
DE3903603C2 (en) * 1989-02-08 1994-10-06 Schwelm Tanksysteme Gmbh Tank system for motor vehicles
US5040577A (en) * 1990-05-21 1991-08-20 Gilbarco Inc. Vapor recovery system for fuel dispenser
US5156199A (en) * 1990-12-11 1992-10-20 Gilbarco, Inc. Control system for temperature compensated vapor recovery in gasoline dispenser
US5195564A (en) * 1991-04-30 1993-03-23 Dresser Industries, Inc. Gasoline dispenser with vapor recovery system
DE4137345A1 (en) * 1991-11-13 1993-05-19 Salzkotten Tankanlagen DEVICE FOR REFUELING MOTOR VEHICLES WITH GAS RECIRCULATION BY A MOTOR DRIVEN GAS FEED PUMP
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DK0678476T3 (en) * 1994-04-16 1999-06-21 Scheidt & Bachmann Gmbh Liquid fuel delivery device
US5644730A (en) * 1995-03-22 1997-07-01 Banner Engineering Corp. Dual mode binary sensor for bus operation

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ATE332872T1 (en) 2006-08-15
EP0870728A1 (en) 1998-10-14
DE59712693D1 (en) 2006-08-24
US5992474A (en) 1999-11-30

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