EP1815216A1 - Procede et dispositif de controle de la valeur de mesure d'un ou plusieurs capteurs de niveau de remplissage disposes dans un reservoir de carburant - Google Patents

Procede et dispositif de controle de la valeur de mesure d'un ou plusieurs capteurs de niveau de remplissage disposes dans un reservoir de carburant

Info

Publication number
EP1815216A1
EP1815216A1 EP05779124A EP05779124A EP1815216A1 EP 1815216 A1 EP1815216 A1 EP 1815216A1 EP 05779124 A EP05779124 A EP 05779124A EP 05779124 A EP05779124 A EP 05779124A EP 1815216 A1 EP1815216 A1 EP 1815216A1
Authority
EP
European Patent Office
Prior art keywords
fuel
fuel tank
measured values
measured value
measurements
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Withdrawn
Application number
EP05779124A
Other languages
German (de)
English (en)
Inventor
Bernd Rumpf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1815216A1 publication Critical patent/EP1815216A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
    • 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
    • F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
    • F02M37/025—Feeding by means of a liquid fuel-driven jet pump
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6845—Micromachined devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/0321—Fuel tanks characterised by special sensors, the mounting thereof
    • B60K2015/03217—Fuel level sensors
    • B60K2015/03223—Fuel level sensors comprising at least two level fuel sensors

Definitions

  • the invention relates to a method for checking the or the measured values of one or more fill level sensors arranged in a fuel tank of a motor vehicle for faults. Defects on the level sensors can lead to an incorrect tank contents display. This poses the Ge ⁇ moving in that the vehicle remains lying by a blank gefah ⁇ enced fuel tank, which is particularly dangerous if this occurs on a highway.
  • the risk of a wrong tank contents indicator is with several level sensors, as z. B. at saddle tank systems with multiple chambers of the fuel tank of the case entspre ⁇ is accordingly the number of level sensors multiple high.
  • the object of the invention is therefore to provide a method and a device for carrying out the method of the type mentioned above, by means of which the error (s) of the level sensor (s) can be recognized.
  • this object is achieved in that the measured values of a plurality of measurements are recorded and compared with a further physical variable for plausibility, and in the absence of plausibility a warning signal is sent to a warning device and warning information is triggered by the warning device.
  • This training is immediately after finding that no plausibility is given, a warning information.
  • the multiple measurements occur within a certain period of time.
  • a measuring interval to the plurality of measurements can in each case after a certain operating time of the engine or be solved by a specific operating function of the motor vehicle from ⁇ .
  • One such particular operating function may be to turn on or off the ignition or to idle the engine.
  • the measured values of the filling level sensors arranged in the chambers can be summed up in a fuel tank having a plurality of chambers, and the measured value sum can be compared for plausibility with the further physical variable.
  • One possibility of a physical quantity for determining the plausibility is that the further physical size of the value of a by a fuel pump the
  • Amount of fuel taken from the fuel tank which, in order to determine the plausibility in addition to the values of the level sensors results in an approximately constant value in at least several of the measurements.
  • the physical quantity may be the value of the injection system of the engine of the motor vehicle by a ⁇ injected fuel quantity, for determining the plausibility in addition to the or the measured values of liquid level sensors at at least a plurality of the measurements results in an approximately constant value.
  • the warning information may be an optical and / or an acoustic warning information.
  • the warning signal can solve displaying an empty fuel tanks on a level indicator of ⁇ .
  • the second part of the object is achieved in a device for carrying out the method characterized in that a filling ⁇ level sensor is disposed in a fuel tank of which the measured values to a computer unit can be fed as well as with one or more measured values of one or more previously ermit ⁇ telter measured values are comparable, wherein in case of deviation of Measured value of the previously determined measured values of the computer unit, a warning signal can be generated.
  • the computer unit can be used at the same time that a fill level indicator can be controlled, through which a level corresponding to the measured value sum can be displayed.
  • warning information is that an error information display can be triggered by the warning signal.
  • the level indicator is controlled by the warning signal.
  • the fuel tank is a fuel tank having a plurality of fuel chambers, wherein in each chamber at least one level sensor is arranged.
  • One of the chambers may be a main chamber and the other chambers Mauttingn, wherein in the main chamber, a fuel pump is arranged, can be conveyed by the fuel to an internal combustion engine.
  • a simple and cost-effective design of the pumps is possible because the pumps are in particular of a Ab ⁇ branch of the flow of the fuel pump drivable suction jet pumps.
  • the fuel pump can be controlled or regulated by the computer unit, only a corresponding programming of the computer unit but no separate electronics is required.
  • Figure 1 is a schematic diagram of a tank system for a motor vehicle having a plurality of chambers ⁇ the fuel tank
  • FIG. 2 shows a block diagram of a device for carrying out a method for checking the measured values of the fill level sensors of the tank system according to FIG. 1.
  • the tank system shown in Figure 1 as having a satellite ⁇ teltank formed with two chambers fuel tank 1, it being possible for one compartment a main chamber 2 and the other chamber is a sub-chamber. 3
  • a swirl pot 4 In the main chamber 2 is a swirl pot 4, in which a conveyor unit 5 is arranged with a fuel pump 6, which sucks fuel from the swirl pot 4 and promotes via a pressure regulator 7 to a Einspritzan- not shown of a motor vehicle.
  • the regulated by the pressure regulator 7 fuel is returned to the swirl pot 4.
  • Another part of the branch 8 of the flow is guided into the auxiliary chamber 3 and operates there a second suction ⁇ jet pump 10.
  • This second suction jet pump 10 delivers fuel from the secondary chamber in the swirl pot. 4
  • a first level sensor 11 for detecting the respective level N 1 is arranged in the main chamber 2 and in the auxiliary chamber 3, a second Gear ⁇ is arranged sensor 12 for detecting the respective level N 2 in the auxiliary chamber 3.
  • the measured values of the fill level sensors 11 and 12 are transmitted via data lines.
  • the measured values of the two level sensors 11 and 12 are added to a measured value sum and a corresponding level signal for driving a level indicator 17 is supplied, which can be arranged after previous damping and averaging in a display panel of Kraftfahr ⁇ and the total level of Fuel tanks 1 indicates.
  • the computer unit 16 z For example, five measured value sums, which are determined one after another in a short time interval, are stored and the last measured value sum determined is compared with the four previously determined measured value sums.
  • the computer unit 16 detects the measured value sums as plausible. This means that the level sensors 11 and 12 and their measured value transmission to the computer unit is in order.
  • the level indicator 17 can be controlled by the computer unit 16 such that it displays a lee ⁇ ren fuel tank 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

L'invention concerne un procédé de contrôle des valeurs de mesure de plusieurs capteurs de niveau de remplissage (11, 12) disposés dans un réservoir de carburant (1). Les valeurs de mesure de plusieurs mesures sont enregistrées et respectivement comparées à une autre grandeur physique en ce qui concerne la plausibilité. En cas d'absence de plausibilité, un signal d'alerte est acheminé vers un dispositif d'alerte et le dispositif d'alerte déclenche une information d'alerte.
EP05779124A 2004-09-28 2005-08-31 Procede et dispositif de controle de la valeur de mesure d'un ou plusieurs capteurs de niveau de remplissage disposes dans un reservoir de carburant Withdrawn EP1815216A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004047071A DE102004047071A1 (de) 2004-09-28 2004-09-28 Verfahren und Einrichtung zur Durchführung des Verfahrens zum Prüfen des Messwerts eines oder mehrerer in einem Kraftstofftank angeordneter Füllstandsensoren
PCT/EP2005/054284 WO2006034937A1 (fr) 2004-09-28 2005-08-31 Procede et dispositif de controle de la valeur de mesure d'un ou plusieurs capteurs de niveau de remplissage disposes dans un reservoir de carburant

Publications (1)

Publication Number Publication Date
EP1815216A1 true EP1815216A1 (fr) 2007-08-08

Family

ID=35355869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05779124A Withdrawn EP1815216A1 (fr) 2004-09-28 2005-08-31 Procede et dispositif de controle de la valeur de mesure d'un ou plusieurs capteurs de niveau de remplissage disposes dans un reservoir de carburant

Country Status (5)

Country Link
US (1) US7675405B2 (fr)
EP (1) EP1815216A1 (fr)
JP (1) JP4914360B2 (fr)
DE (1) DE102004047071A1 (fr)
WO (1) WO2006034937A1 (fr)

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Also Published As

Publication number Publication date
DE102004047071A1 (de) 2006-04-13
JP2008514905A (ja) 2008-05-08
US7675405B2 (en) 2010-03-09
JP4914360B2 (ja) 2012-04-11
US20070266762A1 (en) 2007-11-22
WO2006034937A1 (fr) 2006-04-06

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