EP1882095B1 - Dispositif de refoulement pourvu d'une pompe a carburant - Google Patents

Dispositif de refoulement pourvu d'une pompe a carburant Download PDF

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Publication number
EP1882095B1
EP1882095B1 EP06755239.8A EP06755239A EP1882095B1 EP 1882095 B1 EP1882095 B1 EP 1882095B1 EP 06755239 A EP06755239 A EP 06755239A EP 1882095 B1 EP1882095 B1 EP 1882095B1
Authority
EP
European Patent Office
Prior art keywords
fuel pump
fuel
control unit
power consumption
internal combustion
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.)
Ceased
Application number
EP06755239.8A
Other languages
German (de)
English (en)
Other versions
EP1882095A1 (fr
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
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP1882095A1 publication Critical patent/EP1882095A1/fr
Application granted granted Critical
Publication of EP1882095B1 publication Critical patent/EP1882095B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/3082—Control of electrical fuel pumps
    • 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

Definitions

  • the invention relates to a conveyor with a fuel pump for supplying an internal combustion engine of a motor vehicle with fuel and with a device for supplying the fuel pump with electric current.
  • Such conveyors are often used in today's vehicles and are therefore known.
  • Today's fuel pumps see zBdie EP 0,735,260 A2
  • demand will be regulated according to the demand for fuel of the internal combustion engine.
  • the means for supplying the fuel pump with electric current provides a designated current and a voltage provided, optionally in an appropriate timing to the fuel pump.
  • fuel pumps are subject to natural wear over their lifetime and can also become dirty. This reduces the efficiency of the fuel pump, which results in an increase in the electrical power consumption at the same hydraulic power output of the fuel pump.
  • a particularly powerful fuel pump is used.
  • a power dip of the internal combustion engine is avoided after wear or contamination of the fuel pump.
  • the use of the particularly powerful fuel pump has the disadvantage that the conveyor thereby has very large dimensions and is expensive and thereby increases the power consumption.
  • the invention is based on the problem, a conveyor of the type mentioned in such a way that the use of a particularly powerful fuel pump can be avoided.
  • the conveyor according to the invention does not require a particularly powerful fuel pump.
  • Another advantage of the conveyor according to the invention is that, for example, in a power dip of the internal combustion engine, the error can be limited in a particularly simple manner. Thanks to the monitoring device can be determined whether the cause of the power dip can be, for example, in the pollution and / or wear of the fuel pump.
  • the conveyor according to the invention is structurally particularly simple if the monitoring device is arranged in a control unit supplying the fuel pump with electric current. In addition, the conveyor according to the invention thereby has a particularly small number of components.
  • the comparison between the power consumption and the delivered Hydraulic power easily determine when the controller is connected to a fuel-determining engine control unit of the internal combustion engine. Since the engine control unit in any case determines the fuel consumption of the internal combustion engine, it can transmit this demand to the control unit supplying the fuel pump with electric current. The controller then supplies the fuel pump with sufficient current and voltage until the demand demanded by the engine control unit is met.
  • the comparison of the currently supplied current or voltage with corresponding values of the new condition of the fuel pump is a measure of the actual wear of the fuel pump.
  • the current wear or contamination of the fuel pump can be determined according to another advantageous embodiment of the invention in each operating state of the fuel pump when the controller has a memory for a fuel pump characteristic of the power consumption of the fuel pump in response to the need to promote fuel to the internal combustion engine ,
  • the determination of the current wear of the fuel pump requires according to another advantageous embodiment of the invention, a particularly low construction costs, if the control unit is designed to determine the deviation of the required for the required fuel demand power consumption of the fuel pump from the stored fuel pump characteristic.
  • This design allows the detection of wear or contamination of the fuel pump before the need for fuel of the engine at full load by the fuel pump can no longer be met.
  • the determined deviation of the current power consumption with the stored fuel pump characteristic is preferably stored and can be read out as part of an engine test.
  • the assembly of the conveyor according to the invention is particularly simple when the control unit is disposed within the conveyor, preferably in a flange to be inserted into the fuel tank.
  • FIG. 1 schematically shows a conveyor 1 for supplying an internal combustion engine 2 of a motor vehicle with fuel from a fuel tank 3.
  • the conveyor 1 has a arranged in a swirl pot 4 fuel pump 5.
  • the swirl pot 4 is biased against the bottom of the fuel tank 3.
  • the fuel pump 5 delivers the fuel from the swirl pot 4 via a flow line 6 to the internal combustion engine 2.
  • An engine control unit 7 determines depending on the operating condition of the motor vehicle, the need of the internal combustion engine 2 to fuel and with a fuel pump 5 with electric Power supplying control unit 8 connected.
  • the control unit 8 has a memory 9 for a fuel pump characteristic.
  • the fuel pump characteristic indicates what power consumption the fuel pump 5 has in the amount of fuel to be delivered.
  • the control unit 8 determines the required voltage or the required current for the fuel pump 5 from the fuel pump characteristic. Furthermore, the control unit 8 has a monitoring device 10, with which is compared the power consumption of the fuel pump 5 is sufficient to promote the required amount of fuel.
  • the control unit 8 is also connected to a diagnostic display 11, which has, for example, a control lamp on a dashboard of the motor vehicle, and to a diagnostic socket 12.
  • the diagnostic socket 12 can be used to read out the values of the monitoring device 10 and the state of wear or fouling state of the fuel pump 5 with a corresponding diagnostic device, not shown.
  • control unit 8 may be arranged in a flange 13 to be inserted into the fuel tank 3.
  • FIG. 2 shows a flowchart for driving and monitoring of the fuel pump 5 from FIG. 1 .
  • the engine control unit 7 determines the fuel demand of the internal combustion engine 2 and transmits the fuel demand to the control unit 8.
  • the control unit 8 determines the power consumption of the fuel pump 5 in a step S2 based on a stored or learned fuel pump characteristic and the fuel demand and supplies the Fuel pump 5 according to the intended power consumption with electrical current, the electrical voltage or current pulses.
  • a step S3 it is detected whether the demand of the internal combustion engine 2 is covered by fuel. If so, the controller 8 waits for a change in the request of the engine control unit 7.
  • the supply of the fuel pump 5 is increased with electric current in a step S4.
  • the deviation of the power consumption of the fuel pump 5 from the fuel pump characteristic is determined by the monitoring device 10 in a step S5.
  • the determined deviation is a measure of the wear or the contamination of the fuel pump 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Claims (3)

  1. Dispositif (1) de refoulement, comprenant une pompe (5) à carburant pour l'alimentation en carburant d'un moteur (2) à combustion interne d'un véhicule automobile, comprenant un dispositif d'alimentation en courant électrique de la pompe (5) à carburant et comprenant un dispositif de contrôle pour le contrôle de la puissance absorbée de la pompe (5) à carburant à une cession de puissance hydraulique prévue, le dispositif (10) de contrôle étant monté dans un appareil (8) de commande alimentant en courant électrique la pompe (5) à carburant, caractérisé en ce que l'appareil (8) de commande a une mémoire (9) pour une caractéristique de pompe à carburant de la puissance absorbée de la pompe (5) à carburant en fonction du besoin de carburant à refouler du moteur (2) à carburant, en ce que l'appareil (8) de commande est constitué pour la détermination de l'écart de la puissance absorbée nécessaire pour le besoin en carburant à refouler de la pompe (5) à carburant à la caractéristique de pompe à carburant mémorisée et en ce que l'appareil (8) de commande est, pour la transmission de l'écart de la puissance absorbée ayant la caractéristique de pompe à carburant mémorisée, relié à un indicateur (11) de diagnostic et/ou à une boîte (12) de diagnostic.
  2. Dispositif de refoulement suivant la revendication 1, caractérisé en ce que l'appareil (8) de commande est relié à un appareil (7) de commande de moteur, déterminant le besoin en carburant, du moteur (2) à combustion interne.
  3. Dispositif de refoulement suivant la revendication 1 ou 2, caractérisé en ce que l'appareil (8) de commande est monté à l'intérieur du dispositif (1) de refoulement, de préférence dans une bride (13) à mettre dans le réservoir (3) à carburant.
EP06755239.8A 2005-05-19 2006-05-18 Dispositif de refoulement pourvu d'une pompe a carburant Ceased EP1882095B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005023189A DE102005023189A1 (de) 2005-05-19 2005-05-19 Fördereinrichtung mit einer Kraftstoffpumpe
PCT/EP2006/062404 WO2006122963A1 (fr) 2005-05-19 2006-05-18 Dispositif de refoulement pourvu d'une pompe a carburant

Publications (2)

Publication Number Publication Date
EP1882095A1 EP1882095A1 (fr) 2008-01-30
EP1882095B1 true EP1882095B1 (fr) 2013-07-17

Family

ID=36707342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06755239.8A Ceased EP1882095B1 (fr) 2005-05-19 2006-05-18 Dispositif de refoulement pourvu d'une pompe a carburant

Country Status (6)

Country Link
US (1) US7784446B2 (fr)
EP (1) EP1882095B1 (fr)
JP (1) JP5108753B2 (fr)
KR (1) KR20080011436A (fr)
DE (1) DE102005023189A1 (fr)
WO (1) WO2006122963A1 (fr)

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
DE102007007912A1 (de) * 2007-02-14 2008-08-21 Siemens Ag Fördereinheit
US7980120B2 (en) * 2008-12-12 2011-07-19 GM Global Technology Operations LLC Fuel injector diagnostic system and method for direct injection engine
US7950371B2 (en) * 2009-04-15 2011-05-31 GM Global Technology Operations LLC Fuel pump control system and method
JP5054795B2 (ja) * 2010-03-23 2012-10-24 日立オートモティブシステムズ株式会社 内燃機関の燃料供給制御装置
TW201344442A (zh) * 2012-04-25 2013-11-01 Hon Hai Prec Ind Co Ltd 車輛控制系統
US9528519B2 (en) * 2012-10-12 2016-12-27 Continental Automotive Systems, Inc. Pressure control by phase current and initial adjustment at car line
US20140130778A1 (en) * 2014-01-21 2014-05-15 Caterpillar Inc. Method of operating engine
DE102016203652A1 (de) * 2016-03-07 2017-09-07 Robert Bosch Gmbh Verfahren zum Betreiben einer elektrischen Kraftstoffpumpe
US10253718B2 (en) * 2016-11-23 2019-04-09 GM Global Technology Operations LLC Method and apparatus for controlling fuel pressure

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
US4756291A (en) * 1987-04-27 1988-07-12 Ford Motor Company Pressure control for the fuel system of an internal combustion engine
DE3840912C2 (de) 1987-12-18 2000-04-06 Volkswagen Ag Kraftstoffversorgung für eine Kraftfahrzeug-Brennkraftmaschine mit einer Sicherheitseinrichtung für den Crashfall
US5291578A (en) * 1992-06-15 1994-03-01 First Switch, Inc. Apparatus for controlling a vehicle fuel pump
US5499538A (en) * 1994-03-03 1996-03-19 Ford Motor Company On-board detection of fuel pump malfunction
US5505180A (en) 1995-03-31 1996-04-09 Ford Motor Company Returnless fuel delivery mechanism with adaptive learning
US5715797A (en) * 1995-06-28 1998-02-10 Nippondenso Co., Ltd. Fuel supply system for internal combustion engine and method of adjusting it
DE19617496C2 (de) 1996-05-02 2002-06-20 Siemens Ag Kraftstoff-Fördersystem
JPH11315768A (ja) * 1998-04-30 1999-11-16 Mitsubishi Electric Corp 内燃機関の燃料供給装置
FR2781012B1 (fr) * 1998-07-13 2001-02-16 Magneti Marelli France Circuit d'alimentation en carburant a pompe electrique pilotee en pression objective, pour moteur a combustion interne
US6213100B1 (en) 1999-04-28 2001-04-10 Walbro Corporation Multi-function fuel pump module
DE19948514A1 (de) 1999-10-08 2001-04-19 Alfmeier Praez Ag Kraftstoffentnahmevorrichtung für den Behälter eines Kraftfahrzeuges
DE10002613A1 (de) 2000-01-22 2001-07-26 Volkswagen Ag Kraftstoffversorgung für eine Kraftfahrzeug-Brennkraftmaschine
US6609501B2 (en) * 2001-04-12 2003-08-26 Walbro Corporation Fuel pressure regulation system
DE10153396A1 (de) * 2001-11-01 2003-05-28 Siemens Ag Einrichtung zur Ansteuerung einer elektrischen Kraftstoffpumpe
DE10162989C1 (de) * 2001-12-20 2003-10-09 Siemens Ag Schaltungsanordnung zum Regeln einer regelbaren Kraftstoffpumpe, Verfahren zum Regeln einer Förderleistung und Verfahren zum Überprüfen der Funktionsfähigkeit einer regelbaren Kraftstoffpumpe
JP3833540B2 (ja) * 2002-01-09 2006-10-11 三菱電機株式会社 内燃機関の燃料供給装置
JP2004190508A (ja) * 2002-12-09 2004-07-08 Hitachi Unisia Automotive Ltd 内燃機関用燃料ポンプの診断装置
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Also Published As

Publication number Publication date
US7784446B2 (en) 2010-08-31
KR20080011436A (ko) 2008-02-04
JP2008540926A (ja) 2008-11-20
US20080276909A1 (en) 2008-11-13
DE102005023189A1 (de) 2006-11-23
EP1882095A1 (fr) 2008-01-30
WO2006122963A1 (fr) 2006-11-23
JP5108753B2 (ja) 2012-12-26

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