EP2156177A2 - Procédé pour un circuit carburant d'un vehicule - Google Patents
Procédé pour un circuit carburant d'un vehiculeInfo
- Publication number
- EP2156177A2 EP2156177A2 EP08805980A EP08805980A EP2156177A2 EP 2156177 A2 EP2156177 A2 EP 2156177A2 EP 08805980 A EP08805980 A EP 08805980A EP 08805980 A EP08805980 A EP 08805980A EP 2156177 A2 EP2156177 A2 EP 2156177A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- detection
- tank
- vehicle
- light source
- 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.)
- Withdrawn
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 118
- 238000000034 method Methods 0.000 title claims description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims description 21
- 239000003502 gasoline Substances 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000007865 diluting Methods 0.000 claims 1
- 238000011156 evaluation Methods 0.000 claims 1
- 239000002828 fuel tank Substances 0.000 claims 1
- 239000012895 dilution Substances 0.000 abstract description 2
- 238000010790 dilution Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 230000031700 light absorption Effects 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000002031 ethanolic fraction Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- -1 hydroxyl compound Chemical class 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 239000002551 biofuel Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009838 combustion analysis Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000012417 linear regression Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- NUMQCACRALPSHD-UHFFFAOYSA-N tert-butyl ethyl ether Chemical compound CCOC(C)(C)C NUMQCACRALPSHD-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2835—Specific substances contained in the oils or fuels
- G01N33/2852—Alcohol in fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0665—Tanks, e.g. multiple tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
- F02D19/084—Blends of gasoline and alcohols, e.g. E85
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
- F02D19/085—Control based on the fuel type or composition
- F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0064—Layout or arrangement of systems for feeding fuel for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Definitions
- the present invention relates to the identification of the basic characteristics of a motor fuel, in particular the discrimination at the vehicle level between conventional fuels of the "gasoline” type and ethanol fuels, such as for example the so-called E85 fuel, consisting of 85% ethanol and 15% ordinary gasoline.
- the problem of identifying the fuel remains when the vehicle is equipped with a so-called "FLEXFUEL" engine, that is to say capable of operating with a conventional fuel of petroleum origin or a fuel comprising more or less significant proportions of ethanol, such as E85 fuel marketed especially in Europe and the United States, mainly based on products derived from the agricultural industry. Indeed, if these engines are designed to withstand the corrosive nature of alcohol, the fact remains that many engine parameters must be adapted, which is typically done by choosing a different engine control map, the choice of cartography assuming the identification of the fuel.
- the same principle is found in the publication WO 9003565 which teaches the determination of the alcohol concentration in a fuel alcohol mixture by means of a pair of sensitive elements which detect the absorption on two bands.
- the first band corresponds to wavelengths for which the absorption by the alcohol is maximum, while the absorption by the fuel is essentially zero.
- the second band is chosen such that the fuel and the alcohol then have a substantially identical absorption behavior.
- the signals representative of the two sensors are rationalized to form a signal representative of the alcohol concentration.
- the measure is derived from the consideration that even if oxygenated assets are present in the conventional fuel, they are in the form of ethers (ETBE or MTBE type), and therefore the presence of a hydroxyl group -OH associated with a carbon chain is well characteristic of fuels alcoholic (and therefore in particular ethanol fuels).
- the radical -OH can be identified by spectroscopy by its absorption peaks in the near infrared.
- the present invention proposes a variant of these techniques based on spectrometric measurements consisting in observing the decrease in the absorption of a blue light when the gasoline is diluted by the addition of an alcohol (or at least one strongly ethanol fuel).
- blue light it is understood a wavelength between about 350 nm and about 450 nm, preferably between 380 and 420 nm, more preferably about 400 nm.
- the light source is not necessarily monochromatic and may very well be constituted by a relatively inexpensive source such as a blue light emitting diode (LED), with a broad emission spectrum compared for example with a laser source - and therefore a lot less expensive and more robust.
- a simple phototransistor may suffice.
- the ethanol concentration of the mixture is simply proportional to the intensity of light passing through the fuel sample and measured across a phototransistor. The higher the ethanol concentration, the more the mixture becomes transparent to blue light.
- the fuel identification system is supplemented by means for warning the motorist of the fuel error, for example by triggering an audible alarm inviting him to stop immediately filling the tank and / or means to block the engine start to prevent the destruction of sensitive elements, especially if the alarm was not taken into account in a short time.
- the information on the nature of the fuel does not need to be relayed to the driver - except possibly through a logbook intended in particular to monitor the evolution of consumption in fuel.
- this information makes it possible to calculate the exact nature of the mixture knowing on the one hand that the introduced fuel is in a given country either E85 is a gasoline and the volume of fuel introduced is known by comparing the fuel level before and after the pump.
- the absorption of light can be observed in transmission, for example by placing the light source and the sensor facing each other along a diameter of the duct connecting the fuel door of the vehicle to the tank. It may also be in reflection, in which case source and sensor may be arranged in close proximity to one another.
- the measurement is essentially by diffusion and absorption, preferred method because compatible with a fluid having a high degree of turbulence, as is often the case with a fuel just out a pump.
- the technique of the invention is extremely robust and very inexpensive, and perfectly capable of providing information on a fuel error that the motorist can correct simply by continuing to fill the tank with a appropriate fuel or to allow the modification of the engine operating parameters before the vehicle is restarted, thus ensuring good driving pleasure and optimum performance in reducing pollutant emissions.
- Figure 1 is a diagram of the fuel system of a motor vehicle, from the fuel door to the tank;
- Figure 2 is a circuit diagram similar to Figure 2, in a transmission mounting
- Figure 3 is a circuit diagram showing a possible implantation of the sensor, in a mounting in reflection
- FIG. 4 is a diagram illustrating the preferred embodiment of the invention, with a measurement according to the diffusion / absorption mode; and [0028]
- Figure 5 is a block diagram showing how the measurement according to the invention can be used to determine the alcohol concentration of the fuel present in the vehicle tank.
- the fuel supply circuit essentially comprises a mouth 1, terminated by a cap and / or a hatch, a conduit 2 and a reservoir 3.
- the reservoir is typically placed under the floor of the vehicle, so that the duct 2 comprises a first portion 4 substantially vertical and a second substantially horizontal portion 5, these two parts being joined by a bend 6.
- the fuel is identified by measuring the dilution effect of the absorption of a blue light when a gasoline is diluted with alcohol.
- the absorption of light by gasoline is very strong for any light whose wavelength is between about 300 nm and about 450 nm, which makes it possible to use any light source emitting in the " blue ", especially a light-emitting diode as found for multiple commercial applications and which emit in a more or less wide spectrum.
- a monochromatic source in particular a laser source, can also be used.
- the high absorption also makes it possible to use only relatively small thicknesses, typically of the order of 5 to 30 mm, whereas for measurements in the infrared, an optical path of at least 100 mm is necessary.
- the detection of the light beam can be carried out by any means suitable for detecting unabsorbed light.
- a phototransistor is sufficient and will preferably be used because of its low cost but other means, in particular a photodiode or a joulemeter may also be used.
- the light source and the detector may preferably placed in a point of the duct requiring anyway a weld.
- the blue light is essentially absorbed in the gasoline while it is transmitted substantially unabsorbed in the alcohol.
- the measurement can be considered as an "all or nothing” measurement, requiring only a basic electronic circuit to transmit for example the "detected gasoline” or “detected E85” information.
- the power supply circuit of the light source is preferably closed as soon as the fuel door is open. More preferably, the light is emitted in the form of pulses rather than in a continuous manner, which makes it possible to differentiate an almost zero absorption (the conduit contains only air), a very slight absorption (the conduit is filled with gasoline and not a strongly ethanol fuel).
- the measurement is performed in transmission as shown in Figure 2.
- the transmitter 10 and the detector 1 1 are vis-à-vis for example diametrically opposed or possibly slightly offset and are separated by a fuel thickness corresponding to the diameter of the fuel pipe.
- the light passes through the fuel once. This single passage is not very favorable from the point of view of the sensitivity of the device but allows space transmitter and detector.
- the measurement is carried out in reflection.
- a reflecting surface 12 facing the light source for example consisting of a metal or dielectric mirror or even more simply a simple white surface.
- the signal coming from the transmitter 10 is reflected by this reflecting surface and returns to the detector 11 positioned on the same side as the transmitter (the mirror possibly being placed in such a way that the beam light is slightly deviated, especially in the case of a light source emitting a very fine light brush and a detector not superimposed on the source.
- the dispersion of the light beam is sufficient to allow a slight offset between the emitting source and the detector.
- the sensitivity is increased but the distance between the transmitter and the reflective wall must not be too great.
- a third variant of the invention applicable at a point of the duct where the fuel drives a relatively large amount of air, in other words near the fuel filler, just under the fuel pump gun, the combined principle of diffusion and absorption is used. Indeed the continuous air in the fuel will cause a significant diffusion of the signal.
- this phenomenon can be exploited by placing the detector on the same side as the transmitter, at a distance not exceeding, for example, 90 ° of an arc of a circle, and preferably between about 10 ° and about 60 °. In this case, it is not necessary to provide a reflective surface.
- the light signal does not reach the detector. From the moment when a fuel jet 12 is introduced, a mixture of air and fuel as at the exit of a fuel gun, the air 13 contained in the fuel causes a significant diffusion of the light signal, a part of which then arrives. to the detector. If the fuel is of the ethanol type this part of the signal is diffused without being absorbed and therefore a high level signal is detected. If the fuel is mainly gasoline based, the signal absorption is very important and therefore only a weak signal is detected.
- This variant of the invention is particularly suitable for very early detection of the nature of the fuel because it is all the more effective that the fuel has not had time to decant, in other words that the measurement is carried out just at the end of the fuel pump gun, when it is fully inserted into the pipe.
- This information can be processed in different ways. For example, it may be associated with a buzzer and / or visual (activation of flashing lights of emergency alarm) and a prohibition of starting. Mixed strategies can advantageously be used. For example, if the user reacts immediately to the warning signal and stops filling the tank, then continues it with a suitable fuel, it can be estimated that the amount of "bad" fuel is minimal and not harmful.
- the restart of the vehicle can be not allowed.
- the interface with the computer for data processing and the application of the user's warning strategy is facilitated because of the presence of a communication beam for the user. fuel gauge information nearby.
- FLEXFUEL For FLEXFUEL vehicles, the same system can be envisaged which allows not to differentiate the fuel circuits of "ordinary" vehicles or "FLEXFUEL vehicles". Indeed, for these vehicles, it is useless to look for relatively sophisticated information such as the concentration of ethanol in the fuel dispensed by the pump but simply to discriminate between a gasoline or a fuel rich in ethanol.
- the commercial offer is indeed a fuel with 85% ethanol.
- modern vehicles are equipped with devices for measuring the fuel level in the tank, which makes it possible to estimate relatively accurately the amount of fuel available, typically displayed via an interface associated with the dashboard through which are displayed various related information such as the estimated range, the average consumption on the last trips, etc.
- the only constraint is to know the alcohol concentration of the fuel used by the manufacturer for the very first full of the vehicle.
- the above formula may be parameterized so as to replace the value of 85%, common in countries regularly exposed to freezing, by a value of for example 1, if "pure” ethanol is marketed in the country concerned, as for example in Brazil.
- the alcohol concentration of the mixture present in the reservoir thus estimated makes it possible to select an engine control map adapted to the available mixture, emphasizing that most often, an approximation (for example 10 to 10%) is very sufficient for allow a good adaptation of the motor parameters.
- the detector can be advantageously not located near the fuel filler but rather or at the fuel pump pump gauge module (in the tank) or in the engine fuel system, or by example just at the entrance of the injection rail. Positioning the sensor at the inlet of the injection rail eliminates the need to take into account the fuel present in the line between the tank (usually located in the rear seats of a vehicle) and the engine (usually at the before).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0755734A FR2917496B1 (fr) | 2007-06-13 | 2007-06-13 | Procede d'identification du carburant present dans un reservoir d'un vehicule automobile |
PCT/FR2008/051045 WO2009004216A2 (fr) | 2007-06-13 | 2008-06-12 | Procede pour un circuit carburant d ' un vehicule |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2156177A2 true EP2156177A2 (fr) | 2010-02-24 |
Family
ID=38832963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08805980A Withdrawn EP2156177A2 (fr) | 2007-06-13 | 2008-06-12 | Procédé pour un circuit carburant d'un vehicule |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2156177A2 (fr) |
FR (1) | FR2917496B1 (fr) |
WO (1) | WO2009004216A2 (fr) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542092B1 (fr) * | 1983-03-03 | 1986-02-28 | Inst Francais Du Petrole | Procede et dispositif pour determiner la composition d'un melange alcool-essence, adaptes au reglage automatique de moteurs alimentes en melanges combustibles de teneur en alcool variable |
US4541272A (en) * | 1983-05-13 | 1985-09-17 | Roland Bause | Electronically controlled fuel injection system |
DE10322300A1 (de) * | 2003-05-17 | 2004-12-30 | Daimlerchrysler Ag | Schutzeinrichtung zur Vermeidung von Fehlbetankungen und Verfahren zum Betreiben der Schutzeinrichtung |
JP2005201068A (ja) * | 2004-01-13 | 2005-07-28 | Denso Corp | 燃料判別装置 |
NO323486B1 (no) * | 2005-07-06 | 2007-05-21 | Alf Mortensen | Anordning for maling av dieseloljekvalitet |
FR2898083B1 (fr) * | 2006-03-06 | 2009-02-13 | Peugeot Citroen Automobiles Sa | Circuit carburant d'un vehicule |
-
2007
- 2007-06-13 FR FR0755734A patent/FR2917496B1/fr not_active Expired - Fee Related
-
2008
- 2008-06-12 WO PCT/FR2008/051045 patent/WO2009004216A2/fr active Application Filing
- 2008-06-12 EP EP08805980A patent/EP2156177A2/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2009004216A3 * |
Also Published As
Publication number | Publication date |
---|---|
FR2917496A1 (fr) | 2008-12-19 |
FR2917496B1 (fr) | 2016-04-01 |
WO2009004216A2 (fr) | 2009-01-08 |
WO2009004216A3 (fr) | 2009-03-12 |
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