WO2008017756A2 - Method and device for the safe filling of a tank - Google Patents

Method and device for the safe filling of a tank Download PDF

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Publication number
WO2008017756A2
WO2008017756A2 PCT/FR2007/001327 FR2007001327W WO2008017756A2 WO 2008017756 A2 WO2008017756 A2 WO 2008017756A2 FR 2007001327 W FR2007001327 W FR 2007001327W WO 2008017756 A2 WO2008017756 A2 WO 2008017756A2
Authority
WO
WIPO (PCT)
Prior art keywords
filling
unit
filling head
tank
management unit
Prior art date
Application number
PCT/FR2007/001327
Other languages
French (fr)
Other versions
WO2008017756A3 (en
Inventor
Jacques Honvault
Original Assignee
Valeo Systemes De Controle Moteur
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Systemes De Controle Moteur filed Critical Valeo Systemes De Controle Moteur
Priority to EP07823380A priority Critical patent/EP2049828A2/en
Publication of WO2008017756A2 publication Critical patent/WO2008017756A2/en
Publication of WO2008017756A3 publication Critical patent/WO2008017756A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • 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
    • B67D7/32—Arrangements of safety or warning devices; Means for preventing unauthorised delivery of liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/002—Automated filling apparatus
    • F17C5/007—Automated filling apparatus for individual gas tanks or containers, e.g. in vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0364—Pipes flexible or articulated, e.g. a hose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0376—Dispensing pistols
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/036—Very high pressure, i.e. above 80 bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0478—Position or presence
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground
    • F17C2270/0139—Fuel stations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0178—Cars

Definitions

  • the present invention relates to a method and a device for filling a fuel tank associated with a heat engine that can be used, for example, to move a motor vehicle.
  • CNG natural gas vehicle
  • Such filling station comprises a dispensing unit, mainly consisting of a compressor, connected by a flexible hose to a filling head arranged to be connected to the vehicle tank so as to introduce into said tank gas at a pressure of the order of 200 bars.
  • the distribution unit is a low-flow compressor such that the filling of the tank takes about eight hours. The owner can thus connect the filling head to the tank of his vehicle in the evening and let the filling be carried out during the night. There is a risk that a user, inattentive in the early morning, starts his vehicle without disconnecting the filler head. This can have disastrous consequences, namely a rupture of the pipe connecting the filling head to the dispensing unit, causing leakage of gas that may explode in the event of a spark or in the presence of a major source of heat.
  • a method of filling a fuel tank of a motor vehicle by means of a filling head connected by a distribution unit to a fuel source comprising the steps of:
  • programmed management unit means an "ECU” device (Egine Control Unit) comprising a microprocessor-based electronic card whose function is to control, in particular, injection, ignition, and / or admission of the vehicle engine.
  • ECU Egine Control Unit
  • connection between the vehicle management unit and the filling detector makes it possible to prevent the engine from starting when a filling is in progress, thus preventing any risk of pulling off the filling head.
  • the detection of the current filling is obtained by detecting a variation of the fuel level in the tank.
  • This detection mode is relatively simple.
  • the method comprises the step of establishing a connection between the vehicle management unit and the distribution unit for comparing a flow rate of the dispensing unit with the variation of the fuel level of the reservoir and, preferably , comparing the fuel level to the flow rate of the dispense unit is used to detect a leak and stop the dispense unit or comparing the flow of the dispense unit and the fuel level of the reservoir is used to stop the dispensing unit when the tank is filled.
  • the connection of the management unit to the distribution unit makes it possible to obtain additional functionalities, namely here the leak detection and the stop of the distribution unit at the end of filling.
  • the invention also relates to a device for implementing the method of the invention.
  • This device comprises a filling head, a distribution unit connecting the filling head to a fuel source, and means for establishing a connection between the distribution unit and the engine management unit of the vehicle.
  • FIG. 1 is a schematic view illustrating the filling of a vehicle by means of a dispensing station allowing the implementation of the method according to the invention
  • FIG. 2 is a view similar to Figure 1 of a second embodiment of the method according to one invention.
  • the method according to the invention is here described in application to the filling of a tank 1 of a vehicle 10 comprising a heat engine 2 and a management unit 3 such as a motor control unit or ECU ("Engine Control Unit”). ").
  • the fuel tank 1 is equipped with a level detector 4 connected to the management unit 3.
  • the tank 1 being here intended to receive a pressurized gas (of the order of 200 bars), the level detector 4 can be a pressure sensor.
  • the process according to the invention is carried out by means of a filling station generally designated 20 having a source of gas, here symbolized at 21, connected to a distribution unit 22, namely a compressor, and a head filling 23 connected by a pipe 24 to the distribution unit 22.
  • the gas source may be a connection valve to the urban gas distribution network or a tank.
  • the filling head 23 is arranged, in a manner known per se, to be connected sealingly and removably to a filling duct 5 having one end connected to the tank 1 and an opposite end opening to the outside of the vehicle 10.
  • the head filling device 23 also carries a communication connector 25 connected by a cable 26 to the distribution unit 22.
  • the communication connector 25 is intended to be connected to a communication connector 6 integral with the filling duct 5 and connected to the management unit 3.
  • the management unit 3 is programmed to prohibit a start of the engine 2 when a current fill is detected.
  • the detection of the filling in progress is here obtained by means, on the one hand, of the level detector 4 which makes it possible to detect a variation of the level of gas in the tank 1 and, on the other hand, the connection of the communication connectors 25 and 6 which shows that the filling head 23 is connected to the tank 1. This double detection makes it possible to overcome a failure of the level detector 4 or connectors 25 and 7.
  • the management unit 3 prevents the driver from starting the vehicle.
  • the distribution unit 22 is arranged to detect information representative of the gas flow rate (such as the flow itself) that it delivers, and communicates this information to the management unit 3 via the connectors. 25, 6.
  • the management unit 3 compares the variation of the level detected by the level detector 4 and the flow rate supplied by the distribution unit 22 to identify the existence of a leak when the variation of level of gas does not correspond to the flow delivered by the distribution unit 22.
  • the management unit 3 controls the stop of the distribution unit 22 and issues an alert.
  • the opposite is also possible, namely that the variation of the level detected by the level detector 4 may be communicated by the management unit 3 to the distribution unit 22 which compares this variation to the delivered rate.
  • the distribution unit 22 stops in case of leakage and issues an alert.
  • the management unit 3 further controls the stop of the dispensing unit 22 when the level detector 4 informs it that the tank 1 is full.
  • the distribution unit 22 and the management unit 3 are provided with air communication means, and more particularly WIFI type wireless communication means, here symbolized at 29.
  • the dispensing unit 22 comprises a support 27 for receiving the filling head 23 when it is not used.
  • the support 27 is equipped with a sensor 28 of presence of the filling head 23.
  • the detection of the filling in progress is then obtained by, on the one hand, the detection of a level variation by the detector 4 and, on the other hand, by the absence of the filling head 23 of its support 27, absence detected by the presence detector 28.
  • connection of the management unit 3 to the distribution unit 22 is established via the WIFI communication means.
  • the operation is identical to that of the first embodiment.
  • the management unit can simply prevent startup when a current fill is detected. Only one fill detection mode in progress can be used.
  • the detection mode may be different from those described and consist in detecting the presence of the filling head 23 in the filling duct 5 for example by a conventional presence detector, with or without contact.
  • WIFI Wireless Fidelity, ISO / I ⁇ C 8802-11

Abstract

Method of filling a fuel tank (1) of a motor vehicle (10) by means of a nozzle (23) connected by a distribution unit (22) to a fuel source (21), the method comprising the steps of: connecting the nozzle to the tank and activating the distribution unit to begin the filling; establishing a link between a management unit (3) of the vehicle and a fill detector (4) to prevent the motor from starting when it is detected that filling is in progress. An object of the invention is also a corresponding device.

Description

Procédé et dispositif de remplissage sécurisé d'un réservoir Method and device for securely filling a tank
La présente invention concerne procédé et un dispositif de remplissage d'un réservoir de carburant associé à un moteur thermique utilisable par exemple pour mouvoir un véhicule automobile.The present invention relates to a method and a device for filling a fuel tank associated with a heat engine that can be used, for example, to move a motor vehicle.
ARRIERE PLAN DE L'INVENTION Afin de lutter contre la pollution et de prévenir la baisse des réserves mondiales de pétrole, les motoristes ont recherché des carburants alternatifs à l'essence pour alimenter les moteurs des véhicules automobiles. L'un de ces carburants les plus prometteurs est le gaz naturel véhicule (GNV, ou CNG pour "Compressed Natural Gas".BACKGROUND OF THE INVENTION In order to combat pollution and prevent the decline in global oil reserves, engine manufacturers have sought alternative fuels to gasoline to power motor vehicle engines. One of these most promising fuels is natural gas vehicle (CNG, or CNG for "Compressed Natural Gas".
Il a été envisagé d'implanter, chez les propriétaires de véhicules fonctionnant au gaz, des stations de remplissage particulières reliées au réseau de distribution du gaz de ville pour permettre aux propriétaires desdits véhicules de remplir leur réservoir dans leur garage.It has been envisaged to install, among the owners of gas-powered vehicles, particular filling stations connected to the city gas distribution network to allow the owners of these vehicles to fill their tanks in their garage.
Une telle station de remplissage comprend une unité de distribution, principalement constituée d'un compresseur, reliée par un tuyau souple à une tête de remplissage agencée pour être raccordée au réservoir du véhicule de manière à pouvoir introduire dans ledit réservoir du gaz à une pression de l'ordre de 200 bars. Afin de limiter le coût de la station de remplissage, notamment pour les particuliers, l'unité de distribution est un compresseur à bas débit tel que le remplissage du réservoir dure environ huit heures. Le propriétaire peut ainsi raccorder la tête de remplissage au réservoir de son véhicule le soir et laisser le remplissage se réaliser durant la nuit. Il existe un risque qu'un utilisateur, inattentif au petit matin, démarre son véhicule sans avoir débranché la tête de remplissage. Ceci peut avoir des conséquences désastreuses à savoir une rupture du tuyau reliant la tête de remplissage à l'unité de distribution, occasionnant une fuite de gaz susceptible d'exploser en cas d'étincelle ou en présence d'une source de chaleur importante.Such filling station comprises a dispensing unit, mainly consisting of a compressor, connected by a flexible hose to a filling head arranged to be connected to the vehicle tank so as to introduce into said tank gas at a pressure of the order of 200 bars. In order to limit the cost of the filling station, particularly for individuals, the distribution unit is a low-flow compressor such that the filling of the tank takes about eight hours. The owner can thus connect the filling head to the tank of his vehicle in the evening and let the filling be carried out during the night. There is a risk that a user, inattentive in the early morning, starts his vehicle without disconnecting the filler head. This can have disastrous consequences, namely a rupture of the pipe connecting the filling head to the dispensing unit, causing leakage of gas that may explode in the event of a spark or in the presence of a major source of heat.
On a alors envisagé de ménager sur la tête de remplissage une amorce de rupture en aval de moyens d'étanchéité de la tête de telle manière qu'une forte traction exercée sur la tête de remplissage raccordée au réservoir provoque une rupture de la tête de remplissage n'affectant pas l'étanchéité .de celle-ci de manière à empêcher le gaz de s'échapper. Cette solution suppose toutefois de remplacer la tête de remplissage après la rupture et de vérifier que la traction exercée sur la tête de remplissage n'a pas détérioré le tuyau souple et le raccordement de celui-ci tant à la tête de remplissage qu'à l'unité de distribution. La rupture de la tête de remplissage entraînerait donc un coût pour la tête de remplissage de rechange et une révision complète de l'installation par un technicien qualifié.It was then envisaged to arrange on the filling head a rupture primer downstream of the head sealing means in such a way that a strong traction exerted on the filling head connected to the reservoir causes a rupture of the filling head. does not affect the seal of the latter so as to prevent the gas from escaping. This solution, however, requires replacing the filling head after the break and to verify that the tension exerted on the filling head has not deteriorated the hose and the connection thereof to both the filling head and the distribution unit. Failure of the filling head would therefore result in a cost to the replacement filling head and a complete overhaul of the installation by a qualified technician.
OBJET DE L'INVENTIONOBJECT OF THE INVENTION
II serait donc intéressant de disposer d'un moyen économique permettant de limiter voire d'empêcher le risque d'un arrachage de la tête de remplissage.It would therefore be advantageous to have an economical means to limit or even prevent the risk of tearing of the filling head.
RESUME DE L'INVENTIONSUMMARY OF THE INVENTION
A cet effet, on prévoit, selon l'invention, un procédé de remplissage d'un réservoir de carburant d'un véhicule à moteur au moyen d'une tête de remplissage reliée par une unité de distribution à une source de carburant, le procédé comprenant les étapes de :For this purpose, it is provided, according to the invention, a method of filling a fuel tank of a motor vehicle by means of a filling head connected by a distribution unit to a fuel source, the method comprising the steps of:
- raccorder la tête de remplissage au réservoir et activer le module de distribution pour commencer le remplissage, - établir une liaison entre une unité de gestion programmée du véhicule et un détecteur de remplissage pour interdire un démarrage du moteur lorsqu'un remplissage en cours est détecté.- connect the filling head to the tank and activate the dispensing module to start the filling, - establish a connection between a management unit programmed vehicle and a fill sensor to prohibit engine start when a current fill is detected.
On entend par « unité de gestion programmée » un dispositif de type « ECU » (Egine Control Unit) comportant une carte électronique à microprocesseur et dont la fonction est de piloter notamment l'injection, l'allumage, et/ou l'admission du moteur du véhicule.The term "programmed management unit" means an "ECU" device (Egine Control Unit) comprising a microprocessor-based electronic card whose function is to control, in particular, injection, ignition, and / or admission of the vehicle engine.
Ainsi, la liaison entre l'unité de gestion du véhicule et le détecteur de remplissage permet d'interdire le démarrage du moteur lorsqu'un remplissage est en cours, empêchant de la sorte tout risque d'un arrachage de la tête de remplissage.Thus, the connection between the vehicle management unit and the filling detector makes it possible to prevent the engine from starting when a filling is in progress, thus preventing any risk of pulling off the filling head.
Selon un premier mode de réalisation, la détection du remplissage en cours est obtenue par détection d'une variation du niveau de carburant dans le réservoir.According to a first embodiment, the detection of the current filling is obtained by detecting a variation of the fuel level in the tank.
Ce mode de détection est relativement simple.This detection mode is relatively simple.
Avantageusement, le procédé comprend l'étape d'établir une liaison entre l'unité de gestion du véhicule et l'unité de distribution pour comparer un débit de l'unité de distribution avec la variation du niveau de carburant du réservoir et, de préférence, la comparaison du niveau de carburant au débit de l'unité de distribution est utilisée pour détecter une fuite et arrêter l'unité de distribution ou la comparaison du débit de l'unité de distribution et du niveau de carburant du réservoir est utilisée pour arrêter l'unité de distribution lorsque le réservoir est rempli. La liaison de l'unité de gestion à l'unité de distribution permet l'obtention de fonctionnalités supplémentaires à savoir ici la détection de fuite et l'arrêt de l'unité de distribution en fin de remplissage.Advantageously, the method comprises the step of establishing a connection between the vehicle management unit and the distribution unit for comparing a flow rate of the dispensing unit with the variation of the fuel level of the reservoir and, preferably , comparing the fuel level to the flow rate of the dispense unit is used to detect a leak and stop the dispense unit or comparing the flow of the dispense unit and the fuel level of the reservoir is used to stop the dispensing unit when the tank is filled. The connection of the management unit to the distribution unit makes it possible to obtain additional functionalities, namely here the leak detection and the stop of the distribution unit at the end of filling.
L'invention a également pour objet un dispositif permettant la mise en œuvre du procédé de l'invention. Ce dispositif comporte une tête de remplissage, une unité de distribution reliant la tête de remplissage à une source de carburant, et des moyens pour établir une liaison entre l'unité de distribution et l'unité de gestion du moteur du véhicule .The invention also relates to a device for implementing the method of the invention. This device comprises a filling head, a distribution unit connecting the filling head to a fuel source, and means for establishing a connection between the distribution unit and the engine management unit of the vehicle.
D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description gui suit de modes de réalisation particuliers non limitatifs de l'invention. BREVE DESCRIPTION DES DESSINSOther features and advantages of the invention will become apparent on reading the following description of particular non-limiting embodiments of the invention. BRIEF DESCRIPTION OF THE DRAWINGS
II sera fait référence aux dessins annexés, parmi lesquels :Reference will be made to the appended drawings, among which:
- la figure 1 est une vue schématique illustrant le remplissage d'un véhicule au moyen d'une station de distribution permettant la mise en œuvre du procédé conforme à 1 ' invention,FIG. 1 is a schematic view illustrating the filling of a vehicle by means of a dispensing station allowing the implementation of the method according to the invention,
- la figure 2 est une vue analogue à la figure 1 d'un deuxième mode de mise en œuvre du procédé conforme à 1 ' invention. DESCRIPTION DETAILLEE DE L'INVENTION- Figure 2 is a view similar to Figure 1 of a second embodiment of the method according to one invention. DETAILED DESCRIPTION OF THE INVENTION
Le procédé conforme à 1 ' invention est ici décrit en application au remplissage d'un réservoir 1 d'un véhicule 10 comportant un moteur thermique 2 et une unité de gestion 3 telle qu'une unité de commande moteur ou ECU ("Engine Control Unit") . Le réservoir de carburant 1 est équipé d'un détecteur de niveau 4 relié à l'unité de gestion 3. Le réservoir 1 étant ici destiné à recevoir un gaz sous pression (de l'ordre de 200 bars), le détecteur de niveau 4 peut être un capteur de pression. Le procédé conforme à l ' invention est mis en oeuvre au moyen d'une station de remplissage généralement désigné en 20 comportant une source de gaz, ici symbolisée en 21, reliée à une unité de distribution 22, à savoir un compresseur, et une tête de remplissage 23 reliée par un tuyau 24 à l'unité de distribution 22. La source de gaz peut être une vanne de raccordement au réseau urbain de distribution de gaz de ville ou une citerne.The method according to the invention is here described in application to the filling of a tank 1 of a vehicle 10 comprising a heat engine 2 and a management unit 3 such as a motor control unit or ECU ("Engine Control Unit"). "). The fuel tank 1 is equipped with a level detector 4 connected to the management unit 3. The tank 1 being here intended to receive a pressurized gas (of the order of 200 bars), the level detector 4 can be a pressure sensor. The process according to the invention is carried out by means of a filling station generally designated 20 having a source of gas, here symbolized at 21, connected to a distribution unit 22, namely a compressor, and a head filling 23 connected by a pipe 24 to the distribution unit 22. The gas source may be a connection valve to the urban gas distribution network or a tank.
La tête de remplissage 23 est agencée, de façon connue en soi, pour être raccordée de façon étanche et amovible à un conduit de remplissage 5 ayant une extrémité reliée au réservoir 1 et une extrémité opposée débouchant à l'extérieur du véhicule 10. La tête de remplissage 23 porte également un connecteur de communication 25 relié par un câble 26 à l'unité de distribution 22.The filling head 23 is arranged, in a manner known per se, to be connected sealingly and removably to a filling duct 5 having one end connected to the tank 1 and an opposite end opening to the outside of the vehicle 10. The head filling device 23 also carries a communication connector 25 connected by a cable 26 to the distribution unit 22.
Le connecteur de communication 25 est destiné à être raccordé à un connecteur de communication 6 solidaire du conduit de remplissage 5 et relié à l'unité de gestion 3.The communication connector 25 is intended to be connected to a communication connector 6 integral with the filling duct 5 and connected to the management unit 3.
Lorsque l'utilisateur désire remplir le réservoir 1, il raccorde la tête de remplissage 23 au conduit de remplissage 5 du réservoir 1 et active l'unité de distribution 22. Le raccordement de la tête de remplissage 23 au conduit de remplissage 5 provogue le raccordement simultané du connecteur de communication 25 et le connecteur de communication 6 établissant une liaison filaire est alors établie entre l'unité de distribution 22 et l'unité de gestion 3. L'unité de gestion 3 est programmée pour interdire un démarrage du moteur thermique 2 lorsqu'un remplissage en cours est détecté. La détection du remplissage en cours est ici obtenue au moyen, d'une part, du détecteur de niveau 4 qui permet de détecter une variation du niveau de gaz dans le réservoir 1 et, d'autre part, du raccordement des connecteurs de communication 25 et 6 qui montre que la tête de remplissage 23 est raccordée au réservoir 1. Cette double détection permet de palier une défaillance du détecteur de niveau 4 ou des connecteurs 25 et 7. Ainsi, tant que le remplissage est en cours, l'unité de gestion 3 empêche le conducteur de démarrer le véhicule.When the user wishes to fill the tank 1, he connects the filling head 23 to the filling duct 5 of the tank 1 and activates the dispensing unit 22. The connection of the filling head 23 to the filling duct 5 provocates the connection simultaneous communication connector 25 and the communication connector 6 establishing a wired connection is then established between the distribution unit 22 and the management unit 3. The management unit 3 is programmed to prohibit a start of the engine 2 when a current fill is detected. The detection of the filling in progress is here obtained by means, on the one hand, of the level detector 4 which makes it possible to detect a variation of the level of gas in the tank 1 and, on the other hand, the connection of the communication connectors 25 and 6 which shows that the filling head 23 is connected to the tank 1. This double detection makes it possible to overcome a failure of the level detector 4 or connectors 25 and 7. Thus, as long as filling is in progress, the management unit 3 prevents the driver from starting the vehicle.
En outre, l'unité de distribution 22 est agencée pour détecter une information représentative du débit de gaz (telle que le débit en lui-même) qu'elle délivre, et communique cette information à l'unité de gestion 3, via les connecteurs de communication 25, 6. L'unité de gestion 3 compare la variation du niveau détectée par le détecteur de niveau 4 et le débit fourni par l'unité de distribution 22 pour identifier l'existence d'une fuite lorsque la variation de niveau de gaz ne correspondrait pas au débit délivré par l'unité de distribution 22. Lorsqu'une fuite est détectée, l'unité de gestion 3 commande l'arrêt de l'unité de distribution 22 et émet une alerte. L'inverse est également possible, à savoir que la variation du niveau détectée par le détecteur de niveau 4 peut être communiquée par l'unité de gestion 3 à l'unité de distribution 22 qui compare cette variation au débit délivré. L'unité de distribution 22 s'arrête en cas de fuite et émet une alerte.In addition, the distribution unit 22 is arranged to detect information representative of the gas flow rate (such as the flow itself) that it delivers, and communicates this information to the management unit 3 via the connectors. 25, 6. The management unit 3 compares the variation of the level detected by the level detector 4 and the flow rate supplied by the distribution unit 22 to identify the existence of a leak when the variation of level of gas does not correspond to the flow delivered by the distribution unit 22. When a leak is detected, the management unit 3 controls the stop of the distribution unit 22 and issues an alert. The opposite is also possible, namely that the variation of the level detected by the level detector 4 may be communicated by the management unit 3 to the distribution unit 22 which compares this variation to the delivered rate. The distribution unit 22 stops in case of leakage and issues an alert.
L'unité de gestion 3 commande en outre l'arrêt de l'unité de distribution 22 lorsque le détecteur de niveau 4 l'informe que le réservoir 1 est plein.The management unit 3 further controls the stop of the dispensing unit 22 when the level detector 4 informs it that the tank 1 is full.
Les éléments identiques ou analogues porteront les références numériques ide ntiques dans la description qui suit d'un deuxième mode de mise en œuvre de 1 ' invention en référence à la figure 2.The same or similar elements will bear the numerical references in the following description of a second embodiment of the invention with reference to FIG. 2.
Dans ce deuxième mode de mise en œuvre, l'unité de distribution 22 et l'unité de gestion 3 sont pourvues de moyens de communication aérienne, et plus particulièrement de moyens de communication hertzienne de type WIFI, ici symbolisés en 29. En outre, l'unité de distribution 22 comprend un support 27 pour recevoir la tête de remplissage 23 lorsque celle-ci n'est pas utilisée. Le support 27 est équipé d'un capteur 28 de présence de la tête de remplissage 23.In this second mode of implementation, the distribution unit 22 and the management unit 3 are provided with air communication means, and more particularly WIFI type wireless communication means, here symbolized at 29. In addition, the dispensing unit 22 comprises a support 27 for receiving the filling head 23 when it is not used. The support 27 is equipped with a sensor 28 of presence of the filling head 23.
La détection du remplissage en cours est alors obtenue par, d'une part, la détection d'une variation de niveau par le détecteur 4 et, d'autre part, par l'absence de la tête de remplissage 23 de son support 27, absence détectée par le détecteur de présence 28.The detection of the filling in progress is then obtained by, on the one hand, the detection of a level variation by the detector 4 and, on the other hand, by the absence of the filling head 23 of its support 27, absence detected by the presence detector 28.
La liaison de l'unité de gestion 3 à l'unité de distribution 22 est établie par l'intermédiaire des moyens de communication WIFI . Pour le reste, le fonctionnement est identique à celui du premier mode de réalisation.The connection of the management unit 3 to the distribution unit 22 is established via the WIFI communication means. For the rest, the operation is identical to that of the first embodiment.
Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to the embodiment described and variants may be provided without departing from the scope of the invention as defined by the claims.
En particulier, la liaison de l'unité de gestionIn particular, the liaison of the management unit
3 à l'unité de distribution 22 est avantageuse mais facultative. L'unité de gestion peut simplement empêcher le démarrage lorsqu'un remplissage en cours est détecté. Un seul mode de détection du remplissage en cours peut être utilisé. Le mode de détection peut être différent de ceux décrits et consister à détecter la présence de la tête de remplissage 23 dans le conduit de remplissage 5 par exemple par un détecteur de présence classique, avec ou sans contact.3 to the distribution unit 22 is advantageous but optional. The management unit can simply prevent startup when a current fill is detected. Only one fill detection mode in progress can be used. The detection mode may be different from those described and consist in detecting the presence of the filling head 23 in the filling duct 5 for example by a conventional presence detector, with or without contact.
D'autres modes de liaison sans fil que le WIFI (Wireless Fidelity, norme ISO/IΞC 8802-11) sont envisageables, et notamment hertziens, infrarouges... Other modes of wireless connection that WIFI (Wireless Fidelity, ISO / IΞC 8802-11) are possible, including wireless, infrared ...

Claims

o REVENDICATIONS o Claims
1. Procédé de remplissage d'un réservoir (1) de carburant d'un véhicule à moteur (10) au moyen d'une tête de remplissage (23) reliée par une unité de distribution1. Method of filling a fuel tank (1) of a motor vehicle (10) by means of a filling head (23) connected by a dispensing unit
(22) à une source de carburant (21) , caractérisé en ce que le procédé comprend l'étape d'établir une liaison entre une unité de gestion (3) programmée du véhicule et un détecteur de remplissage (4) pour interdire un démarrage du moteur lorsqu'un remplissage en cours est détecté .(22) to a fuel source (21), characterized in that the method comprises the step of establishing a connection between a programmed management unit (3) of the vehicle and a filling detector (4) to prohibit a start motor when a fill is in progress.
2. Procédé selon la revendication 1, dans lequel la détection du remplissage en cours est obtenue par détection d'une variation du niveau de carburant dans le réservoir (1) .2. The method of claim 1, wherein the detection of the current filling is obtained by detecting a change in the level of fuel in the tank (1).
3. Procédé selon la revendication 2, comprenant l'étape d'établir une liaison entre l'unité de gestion (3) du véhicule (10) et l'unité de distribution (22) pour comparer un débit de l'unité de distribution avec la variation du niveau de carburant du réservoir (1) .The method of claim 2 including the step of establishing a link between the management unit (3) of the vehicle (10) and the distribution unit (22) to compare a throughput of the distribution unit. with the variation of the fuel level of the tank (1).
4. Procédé selon la revendication 3, dans lequel la comparaison du niveau de carburant au débit de l'unité de distribution (22) est utilisée pour détecter une fuite et arrêter l'unité de distribution. The method of claim 3, wherein comparing the fuel level with the flow rate of the dispensing unit (22) is used to detect leakage and stop the dispensing unit.
5. Procédé selon la revendication 3, dans lequel la comparaison du débit de l'unité de distribution (22) et du niveau de carburant du réservoir (1) est utilisée pour arrêter l'unité de distribution lorsque le réservoir est rempli. The method of claim 3, wherein comparing the flow rate of the dispensing unit (22) and the fuel level of the reservoir (1) is used to stop the dispensing unit when the reservoir is filled.
6. Procédé selon la revendication 1, dans lequel la tête de remplissage (23) non utilisée est disposée sur un support (27) et la détection du remplissage en cours est réalisée par détection d'une absence de la tête de remplissage sur le support. 6. Method according to claim 1, wherein the unused filling head (23) is disposed on a support (27) and the detection of the current filling is performed by detecting an absence of the filling head on the support. .
7. Procédé selon la revendication 1, dans lequel la détection du remplissage en cours est obtenue par détection d'un raccordement de la tête de remplissage (23) au réservoir (1) .The method of claim 1, wherein the detection of the filling in progress is obtained by detecting a connection of the filling head (23) to the tank (1).
8. Procédé selon la revendication 1, dans lequel une liaison entre l'unité de gestion (3) et l'unité de distribution (22) est établie par voie aérienne.8. The method of claim 1, wherein a connection between the management unit (3) and the distribution unit (22) is established by air.
9. Procédé selon la revendication 1, dans lequel une liaison filaire est établie entre l'unité de distribution (22) et l'unité de gestion (3) lors d'un raccordement de la tête de remplissage (23) au réservoir (D .9. The method of claim 1, wherein a wired connection is established between the distribution unit (22) and the management unit (3) when connecting the filling head (23) to the reservoir (D). .
10. Dispositif de remplissage d'un réservoir de carburant d'un véhicule à moteur pourvu d'une unité de gestion du moteur, le dispositif comportant une tête de remplissage (23), une unité de distribution (22) reliant la tête de remplissage à une source de carburant (21) , et des moyens (25, 26) pour établir une liaison entre l'unité de distribution et l'unité de gestion.10. Device for filling a fuel tank of a motor vehicle provided with an engine management unit, the device comprising a filling head (23), a dispensing unit (22) connecting the filling head a fuel source (21), and means (25, 26) for establishing a link between the distribution unit and the management unit.
11. Dispositif selon la revendication 10, comprenant un support (27) pour la tête de remplissage11. Device according to claim 10, comprising a support (27) for the filling head.
(23) non utilisée, le support étant équipé d'un détecteur (28) de présence de la tête de remplissage, le détecteur étant relié à l'unité de distribution (22) .(23) not used, the support being equipped with a detector (28) for the presence of the filling head, the detector being connected to the dispensing unit (22).
12. Dispositif selon la revendication 10, dans lequel les moyens d'établissement d'une liaison comprennent un connecteur (25) relié à l'unité de distribution (22) et solidaire de la tête de remplissage (23) pour se raccorder à un connecteur (6) du véhicule relié à l'unité de gestion (3). 12. Device according to claim 10, wherein the means for establishing a connection comprise a connector (25) connected to the distribution unit (22) and integral with the filling head (23) to connect to a connector (6) of the vehicle connected to the management unit (3).
13. Dispositif selon la revendication 10, dans lequel les moyens (29) d'établissement d'une liaison sont agencés pour établir une liaison par voie aérienne.13. The device of claim 10, wherein the means (29) for establishing a link are arranged to establish a link by air.
14. Dispositif selon la revendication 10, dans lequel l'unité de distribution (22) est agencée pour détecter une information relative à un débit de carburant délivré . 14. Device according to claim 10, wherein the distribution unit (22) is arranged to detect information relating to a fuel flow rate. issued.
PCT/FR2007/001327 2006-08-08 2007-07-31 Method and device for the safe filling of a tank WO2008017756A2 (en)

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FR0607215 2006-08-08

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US11254202B2 (en) 2017-10-26 2022-02-22 Volvo Truck Corporation Fueling system and method of fueling

Also Published As

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FR2904818A1 (en) 2008-02-15
EP2049828A2 (en) 2009-04-22
WO2008017756A3 (en) 2008-03-27
FR2904818B1 (en) 2013-04-05

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