EP0245540A2 - Procédé d'excitation d'une valve d'injection - Google Patents

Procédé d'excitation d'une valve d'injection Download PDF

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Publication number
EP0245540A2
EP0245540A2 EP86116760A EP86116760A EP0245540A2 EP 0245540 A2 EP0245540 A2 EP 0245540A2 EP 86116760 A EP86116760 A EP 86116760A EP 86116760 A EP86116760 A EP 86116760A EP 0245540 A2 EP0245540 A2 EP 0245540A2
Authority
EP
European Patent Office
Prior art keywords
injection valve
voltage pulse
voltage
solenoid coil
current
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Withdrawn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
EP86116760A
Other languages
German (de)
English (en)
Other versions
EP0245540A3 (fr
Inventor
Andreas Sausner
Heinz Höhne
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO 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 Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0245540A2 publication Critical patent/EP0245540A2/fr
Publication of EP0245540A3 publication Critical patent/EP0245540A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F02D41/3005—Details not otherwise provided for
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2017—Output circuits, e.g. for controlling currents in command coils using means for creating a boost current or using reference switching
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
    • F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2044—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using pre-magnetisation or post-magnetisation of the coils
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/20—Fuel-injection apparatus with permanent magnets

Definitions

  • the invention is based on a method for controlling an injection valve for an internal combustion engine, a voltage pulse being applied to a solenoid coil of the injection valve.
  • the object of the present invention is to provide a method for controlling the injection valve, in which the valve is opened as soon as possible after the voltage pulse provided to open the valve begins.
  • This object is achieved in that before the voltage pulse, a lower current than is required to open the injection valve flows through the solenoid.
  • the measures according to the invention ensure that a magnetic field that is sufficient to open the injection valve builds up in the shortest possible time after the start of the voltage pulse.
  • a further development of the invention consists in that a pulsating voltage is supplied to the magnetic coil before the voltage pulse is applied. This further development enables the current flowing before the opening process to be limited without any appreciable power loss occurring.
  • the solenoid coil of the injection valve is acted upon by a voltage pulse 1 shown in FIG. 1.
  • the current I increases gradually through the inductive component of the magnetic coil until a value given by the voltage and the resistance is reached. After the voltage has been switched off, the current decays in the form of a damped oscillation, with the half-wave highlighted in hatching remaining remanent magnetization in the opposite direction.
  • the current I begins at 0 after the voltage is switched on and takes the course shown in dashed lines in FIG. 2.
  • the energy supplied is first used for a magnetic reversal of the magnetic core, so that a field strength required for opening the valve is only reached later.
  • the voltage pulse 1 provided for opening the injection valve is preceded by voltage pulses 2, 3, 4, which bring about the current shown in FIG. 2 as a solid line.
  • the magnetic core is already remagnetized at the beginning of the voltage pulse 1, so that the opening process is considerably accelerated.
  • circuit arrangements known per se For example, circuit arrangements for limiting the current to a value sufficient to keep the injection valve open for low-resistance injection valves are known. These circuit arrangements can also be used, appropriately controlled, for limiting the current I before the valve is opened.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
EP86116760A 1986-05-15 1986-12-02 Procédé d'excitation d'une valve d'injection Withdrawn EP0245540A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863616355 DE3616355A1 (de) 1986-05-15 1986-05-15 Verfahren zur ansteuerung eines einspritzventils
DE3616355 1986-05-15

Publications (2)

Publication Number Publication Date
EP0245540A2 true EP0245540A2 (fr) 1987-11-19
EP0245540A3 EP0245540A3 (fr) 1988-03-02

Family

ID=6300878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116760A Withdrawn EP0245540A3 (fr) 1986-05-15 1986-12-02 Procédé d'excitation d'une valve d'injection

Country Status (4)

Country Link
EP (1) EP0245540A3 (fr)
JP (1) JPS62276242A (fr)
BR (1) BR8701748A (fr)
DE (1) DE3616355A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570986A2 (fr) * 1992-05-21 1993-11-24 Nippondenso Co., Ltd. Appareil de commande d'injection de carburant pour moteur à combustion interne
WO2003008794A2 (fr) * 2000-12-20 2003-01-30 Siemens Vdo Automotive Corporation Module air-carburant
EP1990526A2 (fr) 2007-05-09 2008-11-12 Hitachi, Ltd. Dispositif d'injecteur de carburant électromagnétique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017096118A (ja) * 2015-11-19 2017-06-01 マツダ株式会社 エンジンの燃料噴射制御装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021454A (en) * 1958-04-11 1962-02-13 Bendix Corp Control circuit for electromagnetic devices
US3666232A (en) * 1969-04-18 1972-05-30 Bosch Gmbh Robert Method and means for reducing the response time of magnetic valves
US3820198A (en) * 1972-06-21 1974-06-28 Int Harvester Co Switching circuitry for sequential fuel injection
FR2538942A1 (fr) * 1982-12-29 1984-07-06 Renault Dispositif de commande d'organe(s) electromagnetique(s) a actionnement rapide, tel(s) qu'electrovanne(s) ou injecteur(s)

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021454A (en) * 1958-04-11 1962-02-13 Bendix Corp Control circuit for electromagnetic devices
US3666232A (en) * 1969-04-18 1972-05-30 Bosch Gmbh Robert Method and means for reducing the response time of magnetic valves
US3820198A (en) * 1972-06-21 1974-06-28 Int Harvester Co Switching circuitry for sequential fuel injection
FR2538942A1 (fr) * 1982-12-29 1984-07-06 Renault Dispositif de commande d'organe(s) electromagnetique(s) a actionnement rapide, tel(s) qu'electrovanne(s) ou injecteur(s)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570986A2 (fr) * 1992-05-21 1993-11-24 Nippondenso Co., Ltd. Appareil de commande d'injection de carburant pour moteur à combustion interne
EP0570986A3 (fr) * 1992-05-21 1994-03-02 Nippon Denso Co
US5402760A (en) * 1992-05-21 1995-04-04 Nippondenso Co., Ltd. Fuel injection control apparatus for internal combustion engine
WO2003008794A2 (fr) * 2000-12-20 2003-01-30 Siemens Vdo Automotive Corporation Module air-carburant
WO2003008794A3 (fr) * 2000-12-20 2003-08-14 Siemens Vdo Automotive Corp Module air-carburant
US6631699B2 (en) 2000-12-20 2003-10-14 Siemens Vdo Automative Corporation Air fuel module
EP1990526A2 (fr) 2007-05-09 2008-11-12 Hitachi, Ltd. Dispositif d'injecteur de carburant électromagnétique
EP1990526A3 (fr) * 2007-05-09 2012-11-07 Hitachi, Ltd. Dispositif d'injecteur de carburant électromagnétique

Also Published As

Publication number Publication date
EP0245540A3 (fr) 1988-03-02
DE3616355A1 (de) 1987-11-19
JPS62276242A (ja) 1987-12-01
BR8701748A (pt) 1988-01-26

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Inventor name: SAUSNER, ANDREAS

Inventor name: HOEHNE, HEINZ