EP0870728A1 - Apparatus for distributing liquid fuel - Google Patents

Apparatus for distributing liquid fuel Download PDF

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Publication number
EP0870728A1
EP0870728A1 EP97105906A EP97105906A EP0870728A1 EP 0870728 A1 EP0870728 A1 EP 0870728A1 EP 97105906 A EP97105906 A EP 97105906A EP 97105906 A EP97105906 A EP 97105906A EP 0870728 A1 EP0870728 A1 EP 0870728A1
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EP
European Patent Office
Prior art keywords
fuel
computer
gas
measuring unit
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97105906A
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German (de)
French (fr)
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EP0870728B1 (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 AT97105906T priority Critical patent/ATE332872T1/en
Priority to DE59712693T priority patent/DE59712693D1/en
Priority to EP97105906A priority patent/EP0870728B1/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 at least one storage tank by means of at least one with a fuel nozzle provided fuel hose, which the fuel through a fuel pump with the interposition of a measuring unit with pulse generator for determination the amount of fuel is supplied, which is from the tank to be filled escaping air-gas mixture via an arranged on the nozzle Gas suction port is sucked off by a in a storage tank opening gas return line is connected to a gas suction pump.
  • Such devices for dispensing liquid fuels are known. she usually include at least one storage tank for regular gasoline, Super gasoline, super plus and diesel and several petrol pumps for each of these types of fuel. The amount of fuel delivered and the associated prices are for each petrol pump along with the respective one Base price shown on an ad. To meet the legal This is regulated from the fuel tank to be filled when refueling escaping air-gas mixture is suctioned off and placed in a storage tank returned. The performance of the gas suction pump used for this is shown in Dependence of the flow rate of the determined by the measuring unit Fuel controlled.
  • the invention has for its object to provide a device of the type described above for dispensing liquid fuels, which can be put together from any number of modules of the same type with the least possible wiring and installation effort according to the respective need.
  • the solution to this problem by the invention is characterized in that a computer is integrated in each measuring unit, which, based on the impulses of the pulse generator, automatically uses data sets, consisting of address, data and check for both, using the information relating to the type of fuel and base price assigned to the respective measuring unit the displays assigned to the respective petrol pump and for controlling the suction power of the associated gas suction pump, which is dependent on the fuel flow, and for the central computer of the petrol station, which are fed via a network to the self-intelligent units, such as displays, the gas recirculation control and the central computer.
  • This inventive design has the advantage that the use of similar modules with self-intelligent aggregates appropriate facilities can be put together for each need the computers, it is only necessary before commissioning of the individual, identical units with a specific task appropriate software.
  • Further training is therefore not only reduced in installation work, but also also warehousing, since every facility consists of similar modules is compiled, which is only by appropriate software of be adapted to the respective task.
  • the network is used as a BUS system preferably CANBUS.
  • serial data exchange takes place via this network between the self-intelligent aggregates of the petrol pumps and the Central computer, especially for function monitoring, error diagnosis of the Units and if necessary for remote calibration of the measuring units.
  • the data of the Setup via remote data transmission to service stations and Diagnostic centers to transmit, for example, the fill levels of the Check storage tanks for timely refilling the Basic price setting of the computers integrated in the measuring units and on To be able to change the price table and result from the diagnosis Carry out repairs as quickly as possible.
  • the illustrated embodiment shows schematically an underground tank 1 for a liquid fuel, for example gasoline, which has a Fuel line 2 is sucked in by a pump 3 by an engine 4 is driven. The speed of this motor 4 is determined by a nozzle 5 controlled, which at the end of the formed as a flexible nozzle 2a Fuel line 2 is arranged. The amount of each delivered Fuel is measured by a measuring unit 7 arranged in a housing 6 determined that is arranged in the fuel line 2.
  • a measuring unit 7 arranged in a housing 6 determined that is arranged in the fuel line 2.
  • the measuring unit 7 is connected to a pulse generator 11, the Measuring unit 7 and the associated pulse generator 11 each have a computer 12 is assigned.
  • this computer 12 the measuring unit 7 and Pulse generator 11 existing unit unit to a self-intelligent Aggregate, since the computer 12 not only serves the impulses of the Pulse generator 11 to process measurement data.
  • a display 15 controls, in addition to the base price of each in the underground tank 1 existing fuel type the quantity and the associated price of each dispensed fuel indicates, usually one for each nozzle 5 Display 15 is provided. At taps at which tanks are filled from two sides can be assigned to each nozzle 5 two displays 15.
  • the data sets generated by the computer 12 consist of an address identifying the unit to be addressed, the data to be transmitted and a control check with which the addressed aggregate can check whether the at this aggregate transmitted data have arrived completely and correctly.
  • the data records are transmitted via the network 14, which is the connects individual units together.
  • Network connected aggregate on its own computer, such as for example the computer 9a for the gas suction pump 9 or the computer 15a for the displays 15.
  • those generated in the computer 12 are generated via the network 14
  • Data records supplied to the computer 9a the speed of the Gas suction pump 9 driving electric motor 10 controls such that Suction power proportional to that determined by the measuring unit 7 Fuel flow is so that an air-gas mixture quantity via the nozzle 5 is sucked in, which is exactly the output by the nozzle 5 Amount of fuel.
  • network 14 can be connected as further Aggregates, for example a price table 16 with associated computer 16a, a fuel dispenser 17 and at least one computer via remote data transmission 18 for a service station and diagnostic center.
  • Automatic dispensers 17 are provided on petrol pumps, which can be used directly with cash or Chip cards are operated.
  • the network 14 constructed as a BUS system By using the network 14 constructed as a BUS system, via this is the data records generated by the individual computers of the aggregates are transmitted, the elaborate known from the prior art Individual wiring of each individual unit with each other No need for an aggregate because the data records generated by the computers are one Obtain address record so that everyone transmitted over network 14 Record received and processed only by the aggregate computer for which this data record is based on the addressing is determined.
  • the data record received can be checked using the check data record Aggregate calculator determine whether the received data set is complete was transmitted. The respective one confirms receipt of the data record Aggregate computer through a correspondingly addressed data record to the Output calculator.
  • the self-intelligent design of the individual units enables that when the fuel price changes, for example directly via the Central computer 13 of the gas station or an external computer 18 at Mineral oil company, which is connected to the central computer 13 the computer 12 of the measuring units 7 is transmitted so that it automatically the amount to be paid by the customer during the next refueling process based on the new fuel price.
  • the self-intelligent design of the individual units enables data exchange for diagnostic and service purposes, such as the function monitoring of the individual units and the monitoring the fill levels of the individual underground tanks 1.
  • the function monitoring of the displays 15 and / or the price tables 16 takes place via the corresponding computers 15a and 16a in that for example, the numbers represented by individual bars in terms of current are monitored, d. H. that when switching between black and white on Electricity must flow. If this is not the case, the respective computer notices 15a or 16a, which controls the display 15 or the price table 16, that this number is defective and reports this defect to the central computer 13 Tank system and / or directly to the computer 18 of the service station or Diagnostic center.
  • the Central computer 13 of the tank system and / or via a Remote data transmission line the computer of a central Monitoring point can be communicated by the central computer 13 Tank system from and / or from a central monitoring point (calibration office) to decide whether to compare relevant Deviations the respective correction factor of the piston knife one Measuring unit 7 is to be changed in the associated computer 12. Since the Switching of the controllable valves at short notice within breaks the measuring units 7 can be checked at any time possible without the staff of the calibration office the individual tank systems must seek out.

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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.The invention relates to a device for dispensing liquid fuels at least one storage tank by means of at least one with a fuel nozzle provided fuel hose, which the fuel through a fuel pump with the interposition of a measuring unit with pulse generator for determination the amount of fuel is supplied, which is from the tank to be filled escaping air-gas mixture via an arranged on the nozzle Gas suction port is sucked off by a in a storage tank opening gas return line is connected to a gas suction pump.

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. she usually include at least one storage tank for regular gasoline, Super gasoline, super plus and diesel and several petrol pumps for each of these types of fuel. The amount of fuel delivered and the associated prices are for each petrol pump along with the respective one Base price shown on an ad. To meet the legal This is regulated from the fuel tank to be filled when refueling escaping air-gas mixture is suctioned off and placed in a storage tank returned. The performance of the gas suction pump used for this is shown in Dependence of the flow rate of the determined by the measuring unit Fuel controlled.

Bei den bekannten Einrichtungen zur Abgabe flüssiger Kraftstoffe werden jeweils auf den speziellen Einsatzzweck abgestimmte Aggregate verwendet, insbesondere Kraftstoffpumpen, Meßaggregate und Gasabsaugpumpen. 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 used aggregates tailored to the specific application, in particular fuel pumps, measuring units and gas suction pumps. The generated by the pulse generators assigned to each measuring unit are processed centrally in a petrol pump computer, which in turn processes the Suction pumps and controls the displays. This not only results in a considerable wiring effort between the central dispenser computer and the individual units, but also a significant inventory of the differently designed dispenser calculator for each application in Depends on the number of fuel types, pumps and indicators.

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 put together from any number of modules of the same type with the least possible wiring and installation effort according to the respective need.

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 ein Netzwerk den eigenintelligenten Aggregaten, wie Anzeigen, der Gasrückführungssteuerung und dem Zentralrechner zugeführt werden.The solution to this problem by the invention is characterized in that a computer is integrated in each measuring unit, which, based on the impulses of the pulse generator, automatically uses data sets, consisting of address, data and check for both, using the information relating to the type of fuel and base price assigned to the respective measuring unit the displays assigned to the respective petrol pump and for controlling the suction power of the associated gas suction pump, which is dependent on the fuel flow, and for the central computer of the petrol station, which are fed via a network to the self-intelligent units, 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 inventive design has the advantage that the use of similar modules with self-intelligent aggregates appropriate facilities can be put together for each need the computers, it is only necessary before commissioning of the individual, identical units with a specific task appropriate software. By the invention Further training is therefore not only reduced in installation work, but also also warehousing, since every facility consists of similar modules is compiled, which is only by appropriate software of be adapted to the respective 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 used as a BUS system preferably 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, serial data exchange takes place via this network between the self-intelligent aggregates of the petrol pumps and the Central computer, especially for function monitoring, error diagnosis of the Units and if necessary 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 for the data of the Setup via remote data transmission to service stations and Diagnostic centers to transmit, for example, the fill levels of the Check storage tanks for timely refilling the Basic price setting of the computers integrated in the measuring units and on To be able to change the price table and result from the diagnosis Carry out repairs as quickly as possible.

Auf der Zeichnung ist ein Ausführungsbeispiel einer erfindungsgemäßen Einrichtung schematisch dargestellt.In the drawing is an embodiment of an inventive Setup 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 shows schematically an underground tank 1 for a liquid fuel, for example gasoline, which has a Fuel line 2 is sucked in by a pump 3 by an engine 4 is driven. The speed of this motor 4 is determined by a nozzle 5 controlled, which at the end of the formed as a flexible nozzle 2a Fuel line 2 is arranged. The amount of each delivered Fuel is measured by a measuring unit 7 arranged in a housing 6 determined that 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. To prevent this from happening by pouring the fuel into the filling tank from this escaping air-gas mixture into the Atmosphere escapes, is formed on the nozzle 5 Gas intake opening via a gas return line 8 to the underground tank 1 connected. In this gas return line 8 there is a gas suction pump 9 arranged, the suction power proportional to that of the measuring unit 7th determined fuel flow is controlled. In the illustrated This gas suction pump 9 is exemplified by an electric motor 10 driven, the speed of which is controllable. Usually there is one per side only one gas suction pump 9 is arranged at each tap because each side in the Usually only one car can be refueled.

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, the Measuring unit 7 and the associated pulse generator 11 each have a computer 12 is assigned. By means of this computer 12, the measuring unit 7 and Pulse generator 11 existing unit unit to a self-intelligent Aggregate, since the computer 12 not only serves the impulses of the Pulse generator 11 to process measurement data. Via a central computer 13, which is arranged at the gas station, the computer 12 with information supplied by 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 as well as the base price to be paid by the user Price determined for the amount of fuel withdrawn and via a network 14 a display 15 controls, in addition to the base price of each in the underground tank 1 existing fuel type the quantity and the associated price of each dispensed fuel indicates, usually one for each nozzle 5 Display 15 is provided. At taps at which tanks are filled from two sides can be assigned to each nozzle 5 two displays 15.

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 15a für die Anzeigen 15.In addition to the creation of data records for controlling the displays 15 12 records from the computer to control the fuel flow dependent Suction power of the gas suction pump 9 or to control the associated one Electric motor 10 generated. The data sets generated by the computer 12 consist of an address identifying the unit to be addressed, the data to be transmitted and a control check with which the addressed aggregate can check whether the at this aggregate transmitted data have arrived completely and correctly. This The data records are transmitted via the network 14, which is the connects individual units together. In order to use the network 14 To be able to read and evaluate sent data records, everybody points out that Network connected aggregate on its own computer, such as for example the computer 9a for the gas suction pump 9 or the computer 15a 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.For example, those generated in the computer 12 are generated via the network 14 Data records supplied to the computer 9a, the speed of the Gas suction pump 9 driving electric motor 10 controls such that Suction power proportional to that determined by the measuring unit 7 Fuel flow is so that an air-gas mixture quantity via the nozzle 5 is sucked in, which is exactly 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, network 14 can be connected as further Aggregates, for example a price table 16 with associated computer 16a, a fuel dispenser 17 and at least one computer via remote data transmission 18 for a service station and diagnostic center. Automatic dispensers 17 are provided on petrol pumps, which can be used directly with cash or Chip cards are operated.

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 network 14 constructed as a BUS system, via this is the data records generated by the individual computers of the aggregates are transmitted, the elaborate known from the prior art Individual wiring of each individual unit with each other No need for an aggregate because the data records generated by the computers are one Obtain address record so that everyone transmitted over network 14 Record received and processed only by the aggregate computer for which this data record is based on the addressing is determined. The data record received can be checked using the check data record Aggregate calculator determine whether the received data set is complete was transmitted. The respective one confirms receipt of the data record Aggregate computer through a correspondingly addressed data record to the Output calculator.

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 self-intelligent design of the individual units enables that when the fuel price changes, for example directly via the Central computer 13 of the gas station or an external computer 18 at Mineral oil company, which is connected to the central computer 13 the computer 12 of the measuring units 7 is transmitted so that it automatically the amount to be paid by the customer during the next refueling process based on the new fuel price.

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 self-intelligent design of the individual units enables data exchange for diagnostic and service purposes, such as the function monitoring of the individual units and the monitoring the fill 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 tables 16 takes place via the corresponding computers 15a and 16a in that for example, the numbers represented by individual bars in terms of current are monitored, d. H. that when switching between black and white on Electricity must flow. If this is not the case, the respective computer notices 15a or 16a, which controls the display 15 or the price table 16, that this number is defective and reports this defect to the central computer 13 Tank system and / or directly to the computer 18 of 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, this defect is removed from the Computer 12 of the measuring unit 7 registered, since this computer after the Control of the computer 15a no corresponding feedback on the Receives the transmitted data record. Thereupon the computer 12 an error message to the central computer 13 of the tank system and / or the Computer 18 of the service station / diagnostic center transmitted.

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 also possible to use the functions of other units, for example the Electric motor 10 of the gas suction pump 9 or the measuring unit 7 monitor. In the specific case, this means that in the event of a failure for example, the electric motor 10 of the gas suction pump 9, its rotation is monitored, the computer 9a no corresponding feedback to the Gas suction pump 9 controlling computer 12 of the measuring unit 7 transmitted. In the event of an error in the measuring unit 7, the computer 12 registers that the Nozzle 5 has been removed and motor 4 of pump 3 is functioning, however no pulses are received by the pulse generator 11. This Registered errors are also sent 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 on essential on the type of error and the function of the monitored Aggregate. While there are individual errors, such as a Error in the measuring unit 7 is necessary, the system in question immediately switch off, it is sufficient, for example, in the event of an error on price table 16, that, for example, via remote data transmission to the Computer 18 of the service station / diagnostic center at the maintenance company or is transmitted to the mineral 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 self-intelligent units still have the opportunity to do so self-intelligent units also for performing remote calibrations to use. However, this requires that (not shown) controllable valves are available. In the course of at regular intervals Calibrations taking place should be checked whether the actually dispensed amount of liquid with the determined by the pulse generator 11 Liquid quantity matches. To due to inevitable Manufacturing tolerances between actual deviations dispensed amount of liquid and that determined by the pulse generator 11 The amount to be considered is one in each computer 12 as a piston knife designed measuring unit 7 correction factors saved the individual manufacturing tolerances of the respective measuring unit 7 consider.

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 calibrate a piston knife of a measuring unit 7 with respect Existing deviations, preferably caused by wear to be able to check it is necessary to switch the controllable valves two measuring units 7 so with a common To interconnect fuel pump 3 that that of the fuel pump 3rd amount of fuel delivered first by the piston meter of the first Measuring unit 7 and then by the piston knife of the second Measuring unit 7 is promoted. The funded for calibration purposes The amount of fuel is returned to via a bypass circuit (not shown) promoted the underground tank 1. With the help of each measuring unit 7 assigned The pulse generator 11 is in the computers 12 which the respective measuring unit 7th flowing amount of liquid determined. Should look at this Check deviations between those using the two measuring units 7 determined amounts of liquid, they are in the central computer 13 the tank system and / or one with the tank system via a Data transmission line connected calibration center determined and - at Exceeding a certain tolerance value - to change the respective correction factor used in the computer 12 for each Piston knife of a measuring unit 7 is stored.

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 check over the network 14 the Central computer 13 of the tank system and / or via a Remote data transmission line the computer of a central Monitoring point can be communicated by the central computer 13 Tank system from and / or from a central monitoring point (calibration office) to decide whether to compare relevant Deviations the respective correction factor of the piston knife one Measuring unit 7 is to be changed in the associated computer 12. Since the Switching of the controllable valves at short notice within breaks the measuring units 7 can be checked at any time possible without the staff of the calibration office the individual tank systems must seek out.

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 the same type Modules with self-intelligent units, on the one hand, the installation effort is significantly reduced and on the other hand the maintenance of the facility and the Diagnosing errors is made considerably easier.

BezugszeichenlisteReference list

11
ErdtankUnderground tank
22nd
KraftstoffleitungFuel line
2a2a
ZapfschlauchDispensing hose
33rd
Pumpepump
44th
Motorengine
55
ZapfventilNozzle
66
Gehäusecasing
77
MeßaggregatMeasuring unit
88th
GasrückführleitungGas return line
99
GasabsaugpumpeGas suction pump
9a9a
Rechnercomputer
1010th
ElektromotorElectric motor
1111
ImpulsgeberImpulse generator
1212th
Rechnercomputer
1313
ZentralrechnerCentral computer
1414
Netzwerknetwork
1515
Anzeigedisplay
15a15a
Rechnercomputer
1616
PreistableauPrice table
16a16a
Rechnercomputer
1717th
TankautomatFuel dispenser
1818th
externer Rechnerexternal computer

Claims (4)

Einrichtung zur Abgabe flüssiger Kraftstoffe aus mindestens einem Lagertank (1) mittels mindestens eines mit einer Zapfpistole (5) versehenen Zapfschlauches (2a), dem der Kraftstoff durch eine Kraftstoffpumpe (3) unter Zwischenschaltung eines Meßaggregats (7) mit Impulsgeber (11) zur Ermittlung der Kraftstoffmenge zugeführt wird, wobei das aus dem zu befüllenden Tank entweichende Luft-Gas-Gemisch über eine an der Zapfpistole (5) angeordnete Gasansaugöffnung abgesaugt wird, die durch eine im Lagertank (1) mündende Gasrückführleitung (8) mit einer Gasabsaugpumpe (9) verbunden ist,
dadurch gekennzeichnet,
daß in jedem Meßaggregat (7) ein Rechner (12) integriert ist, der aufgrund der Impulse des Impulsgebers (11) selbsttätig unter Verwendung der dem jeweiligen Meßaggregat (7) zugeordneten Informationen über Kraftstoffsorte und Grundpreis Datensätze, bestehend aus Adresse, Daten und Check sowohl für die der jeweiligen Zapfsäule zugeordneten Anzeigen (15) und für die Steuerung der vom Kraftstofffluß abhängigen Saugleistung der zugehörigen Gasabsaugpumpe (9) als auch für den Zentralrechner (13) der Tankstelle erstellt, die über ein Netzwerk (14) den eigenintelligenten Aggregaten, wie Anzeigen (15), der Gasrückführungssteuerung und dem Zentralrechner (13) zugeführt werden.Device for dispensing liquid fuels from at least one storage tank (1) by means of at least one dispensing hose (2a) provided with a fuel nozzle (5), to which the fuel is determined by a fuel pump (3) with the interposition of a measuring unit (7) with pulse generator (11) the amount of fuel is supplied, the air-gas mixture escaping from the tank to be filled being sucked off via a gas suction opening arranged on the fuel nozzle (5), which is discharged through a gas return line (8) opening into the storage tank (1) with a gas suction pump (9) connected is,
characterized by
that in each measuring unit (7) a computer (12) is integrated, which, based on the impulses of the pulse generator (11), automatically uses data sets consisting of address, data and check, both using the information relating to the type of fuel and basic price, assigned to the respective measuring unit (7) created for the respective dispenser (15) and for controlling the suction power dependent on the fuel flow of the associated gas suction pump (9) as well as for the central computer (13) of the gas station, the self-intelligent units such as displays via a network (14) (15), the gas recirculation control and the central computer (13) are supplied. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Netzwerk als BUS-System, vorzugsweise CANBUS ausgeführt ist.Device according to claim 1, characterized in that the Network is designed as a BUS system, preferably CANBUS. Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß über das Netzwerk (14) ein serieller Datenaustausch zwischen den eigenintelligenten Aggregaten der Zapfsäulen und dem Zentralrechner (13) erfolgt, insbesondere zur Funktionsüberwachung, Fehlerdiagnose der Aggregate sowie gegebenenfalls zur Ferneichung der Meßaggregate (7).Device according to claim 1 or 2, characterized in that about the network (14) a serial data exchange between the self-intelligent aggregates of the petrol pumps and the central computer (13), in particular for function monitoring, error diagnosis of the Units and if necessary for remote calibration of the measuring units (7). Einrichtung nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Daten der Einrichtung über eine Datenfernübertragung an mindestens eine Servicestation und Diagnosezentrale übertragbar sind.Device according to at least one of claims 1 to 3, characterized characterized in that the data of the facility via a Remote data transmission to at least one service station and Diagnostic center are transferable.
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
AT97105906T ATE332872T1 (en) 1997-04-10 1997-04-10 DEVICE FOR DISPENSING LIQUID FUELS
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
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

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

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US6715514B2 (en) 2002-09-07 2004-04-06 Worldwide Liquids Method and apparatus for fluid transport, storage and dispensing
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US8707932B1 (en) 2010-08-27 2014-04-29 Paragon Products, Llc Fuel transfer pump system
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DE59712693D1 (en) 2006-08-24
EP0870728B1 (en) 2006-07-12
US5992474A (en) 1999-11-30
ATE332872T1 (en) 2006-08-15

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