WO2012080009A1 - Dispositif pour chauffer par induction une soupape d'injection de carburant - Google Patents

Dispositif pour chauffer par induction une soupape d'injection de carburant Download PDF

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Publication number
WO2012080009A1
WO2012080009A1 PCT/EP2011/071659 EP2011071659W WO2012080009A1 WO 2012080009 A1 WO2012080009 A1 WO 2012080009A1 EP 2011071659 W EP2011071659 W EP 2011071659W WO 2012080009 A1 WO2012080009 A1 WO 2012080009A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
coil
resonant circuit
controllable switch
heating
Prior art date
Application number
PCT/EP2011/071659
Other languages
German (de)
English (en)
Inventor
Stephan Bolz
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 WO2012080009A1 publication Critical patent/WO2012080009A1/fr

Links

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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • 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
    • F02D2041/2065—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control being related to the coil temperature
    • 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
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/06—Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising

Definitions

  • the invention relates to a device for inductive heating of an inductive fuel injection valve in a power ⁇ vehicle with a parallel resonant circuit of a heating ⁇ winding forming resonant circuit coil and a capacitor, wherein the connection points of the resonant circuit coil and the capacitor form a first and a second Schwing Vietnamese- circuit the first resonant circuit connection is connected to a reference potential connection via a first controllable switch and the second oscillating circuit connection is connected to the reference potential connection via a second controllable switch.
  • the control terminal of the controllable switch is connected via a diode poled in the first passage to the second swing ⁇ circuit terminal and the control terminal of the second controllable switch via a second diode polarized in the conducting with the first oscillator circuit connection.
  • a center tap of the oscillation circuit coil are supply voltage terminal for applying the device to a supply voltage with a ballast by means of a choke coil and the control inputs of the controllable switches connected ⁇ .
  • Oscillating circuit coil formed as a primary winding of a transformer, the secondary winding is connected in parallel with the solenoid drive of an electromagnetic Kraftstoffein ⁇ injection valve together with a series-connected filter capacitor to which also the series ⁇ circuit of a heating coil and another filter capacitor are connected in parallel.
  • a resonant circuit in the high-frequency electromagnetic energy over the transformer is ⁇ over, in order to convert these in the heating coil in conjunction with the ferromagnetic material of the valve housing in heat ⁇ .
  • the center tapped oscillating ⁇ circular coil itself is used as a heating coil for inductive heating of the fuel injection valve.
  • the heating coil is designed in principle as an autotransformer, ie only with the primary winding with center tap.
  • control inputs of the controllable switches are each connected via a resistor to the supply connection. Through this Resistors, the current through the first and the second diode is limited.
  • the heating coils required for this purpose - also designed as a Spartrafo - can be switched parallel to the oscillating ⁇ circle coil and thus also supplied by the Os ⁇ zillator with electromagnetic energy.
  • the heating coils are bifilar designed to allow a good magnetic coupling of both partial windings, which in turn compensates the load of the driving switch. By suitable choice of the number of turns and the capacity of the resonant circuit capacitor, both the oscillation frequency and the heating power can be adjusted.
  • the bifilar winding reduces differences in the magnetic flux in the housing of the fuel injector, thus avoiding cross-reactions to the near solenoid drive of the fuel injector.
  • FIG. 1 shows a first device according to the invention
  • Figure 2 shows a device according to the invention with several
  • Winding structure of the oscillating circuit coil Winding structure of the oscillating circuit coil.
  • Figure 1 shows a parallel resonant circuit of a resonant ⁇ circuit capacitor Cl and a resonant circuit coil LI.
  • Oscillating circuit coil LI form a first resonant circuit connection AI and a second resonant circuit connection A2.
  • the first resonant circuit connection AI is connected via a first controllable switch, which is realized in the illustrated embodiment as a MOSFET, to a reference potential terminal A3.
  • the second resonant circuit terminal A2 is also connected to the reference potential terminal A3 via a second controllable switch T2, which is also realized in the illustrated embodiment as a MOSFET.
  • the control terminal of the first controllable switch Tl is connected via a first resistor Rl to a supply potential terminal Vo and via a first forward-biased diode Dl to the second resonant circuit terminal A2.
  • the control terminal of the second controllable switch T2 is connected in the same way via a second resistor R2 to the supply potential terminal Vo and via a forward-biased second diode D2 to the first resonant circuit terminal AI.
  • the reference potential terminal A3 is connected via a third controllable on / off switch T3 to ground potential GND.
  • the on / off switch T3 has its control terminal connected to a power on / off terminal I / O.
  • the oscillating circuit coil LI directly forms the heating coil of the inductive heating of a fuel injection valve.
  • This can be a costly transformer for non-galvanic coupling high-frequency electromagnetic energy in the circuit of the Solenoidantriebs the fuel injection valve can be avoided.
  • FIG. 2 shows a development of the device according to the invention, in which the same parts are provided with the same reference numerals.
  • a plurality of heating coils LH, L12 are provided in accordance with Figure 2, which are indicated by points further possible heating ⁇ developments. Due to this advantageous parallel connection of the heating coils, the energy for all heating coils can be obtained from only one oscillator. In this case, only the values for the resonant circuit coils and the resonant circuit capacitor C1 need to be adjusted accordingly in order to set the required heating power and the desired frequency.
  • the resonant circuit coils LI, LH, L12 are bifilar wound to avoid leakage inductances, which could possibly influence the solenoid drive. With an appropriate structure of the fuel injection valve, this may not be necessary, so that advantageously a simple winding can be used and according to FIG. 3 the oscillating circuit coil can be realized by two simple partial coils L21 and L22 connected in series. Also for this embodiment of a resonant circuit coil can be connected in parallel in the same manner as in Figure 2, according to further realized by partial windings heating coils.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un dispositif pour chauffer par induction une soupape d'injection de carburant comprenant un circuit oscillant parallèle composé d'une bobine de circuit oscillant (L1; L11; L12; L21; L22) formant un enroulement chauffant et d'un condensateur (C1), les points de liaison de la bobine et du condensateur (C1) formant une première (A1) et une deuxième (A2) connexion de circuit oscillant. La première connexion (A1) de circuit oscillant est reliée par l'intermédiaire d'un premier commutateur (T1) commandable et la deuxième connexion (A2) de circuit oscillant est reliée par l'intermédiaire d'un deuxième commutateur (T2) commandable à la connexion de potentiel de référence (A3). La connexion de commande du premier commutateur (T1) commandable est reliée par l'intermédiaire d'une première diode (D1) polarisée dans le sens de passage à la deuxième connexion (A2) de circuit oscillant et la connexion de commande du deuxième commutateur (T2) commandable est reliée par l'intermédiaire d'une deuxième diode (D2) polarisée dans le sens de passage à la première connexion (A1) de circuit oscillant. Une prise centrale de la bobine de circuit oscillant est une bobine d'étranglement (L2) et les entrées de commande des commutateurs (T1, T2) commandables sont reliées à une connexion de tension d'alimentation (V0) pour l'application d'une tension d'alimentation. Selon l'invention, la bobine de circuit oscillant forme un enroulement chauffant pour le chauffage par induction de la soupape d'injection de carburant.
PCT/EP2011/071659 2010-12-15 2011-12-02 Dispositif pour chauffer par induction une soupape d'injection de carburant WO2012080009A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010063112.4 2010-12-15
DE201010063112 DE102010063112A1 (de) 2010-12-15 2010-12-15 Vorrichtung zum induktiven Heizen eines Kraftstoffeinspritzventils

Publications (1)

Publication Number Publication Date
WO2012080009A1 true WO2012080009A1 (fr) 2012-06-21

Family

ID=45092363

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/071659 WO2012080009A1 (fr) 2010-12-15 2011-12-02 Dispositif pour chauffer par induction une soupape d'injection de carburant

Country Status (2)

Country Link
DE (1) DE102010063112A1 (fr)
WO (1) WO2012080009A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014032935A1 (fr) * 2012-08-28 2014-03-06 Continental Automotive Gmbh Circuit conçu pour le chauffage par induction d'un injecteur de carburant
WO2014032932A1 (fr) * 2012-08-28 2014-03-06 Continental Automotive Gmbh Circuit pour le chauffage par induction d'au moins un injecteur de carburant, ensemble injecteur de carburant comprenant un tel circuit et procédé pour faire fonctionner un circuit et un ensemble injecteur de carburant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011085085B4 (de) 2011-10-24 2014-04-03 Continental Automotive Gmbh Schaltungsanordnung zum Zuführen von Energie zur induktiven Erwärmung zu einem Kraftstoffeinspritzventil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070200006A1 (en) 2006-02-27 2007-08-30 Perry Robert Czimmek Constant current zero-voltage switching induction heater driver for variable spray injection
US20100288755A1 (en) * 2009-05-14 2010-11-18 Continental Automotive Systems Us, Inc. Frequency to Voltage Converter Using Gate Voltage Sampling of Power Oscillator
WO2011091124A2 (fr) * 2010-01-22 2011-07-28 Continental Automotive Systems, Inc. Inducteur synthétique d'énergie à mode de commutation
WO2011091121A1 (fr) * 2010-01-22 2011-07-28 Continental Automotive Systems, Inc. Régulation d'une température paramétrique d'une charge chauffée par induction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070200006A1 (en) 2006-02-27 2007-08-30 Perry Robert Czimmek Constant current zero-voltage switching induction heater driver for variable spray injection
DE102007009428A1 (de) * 2006-02-27 2007-10-04 Siemens Vdo Automotive Corp. Bei Konstantem Strom und Nullspannung Schaltender Induktionsheizer-Treiber für Einspritzung mit Variablem Strahl
US20100288755A1 (en) * 2009-05-14 2010-11-18 Continental Automotive Systems Us, Inc. Frequency to Voltage Converter Using Gate Voltage Sampling of Power Oscillator
WO2011091124A2 (fr) * 2010-01-22 2011-07-28 Continental Automotive Systems, Inc. Inducteur synthétique d'énergie à mode de commutation
WO2011091121A1 (fr) * 2010-01-22 2011-07-28 Continental Automotive Systems, Inc. Régulation d'une température paramétrique d'une charge chauffée par induction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014032935A1 (fr) * 2012-08-28 2014-03-06 Continental Automotive Gmbh Circuit conçu pour le chauffage par induction d'un injecteur de carburant
WO2014032932A1 (fr) * 2012-08-28 2014-03-06 Continental Automotive Gmbh Circuit pour le chauffage par induction d'au moins un injecteur de carburant, ensemble injecteur de carburant comprenant un tel circuit et procédé pour faire fonctionner un circuit et un ensemble injecteur de carburant
CN104584684A (zh) * 2012-08-28 2015-04-29 大陆汽车有限公司 用于电感加热燃料喷射阀门的电路装置
CN104584685A (zh) * 2012-08-28 2015-04-29 欧陆汽车有限责任公司 用于电感加热至少一个燃料喷射阀门的电路装置以及具有这样的电路装置的燃料喷射阀门装置和用于运行电路装置和燃料喷射阀门装置的方法
CN104584684B (zh) * 2012-08-28 2016-05-11 大陆汽车有限公司 用于电感加热燃料喷射阀门的电路装置
US9810187B2 (en) 2012-08-28 2017-11-07 Continental Automotive Gmbh Circuit arrangement for inductively heating a fuel injector valve
US10281057B2 (en) 2012-08-28 2019-05-07 Continental Automotive Gmbh Circuit arrangement for inductively heating at least one fuel injector valve, and fuel injector arrangement comprising such a circuit arrangement

Also Published As

Publication number Publication date
DE102010063112A1 (de) 2012-06-21

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