EP3864281B1 - Injecteur - Google Patents

Injecteur Download PDF

Info

Publication number
EP3864281B1
EP3864281B1 EP19790178.8A EP19790178A EP3864281B1 EP 3864281 B1 EP3864281 B1 EP 3864281B1 EP 19790178 A EP19790178 A EP 19790178A EP 3864281 B1 EP3864281 B1 EP 3864281B1
Authority
EP
European Patent Office
Prior art keywords
injector
injection needle
switch
input line
electromagnet
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.)
Active
Application number
EP19790178.8A
Other languages
German (de)
English (en)
Other versions
EP3864281A1 (fr
Inventor
Norbert SCHÖFBÄNKER
Verena KÖGEL
Richard Pirkl
Bernhard Kopp
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.)
Liebherr Components Deggendorf GmbH
Original Assignee
Liebherr Components Deggendorf 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 Liebherr Components Deggendorf GmbH filed Critical Liebherr Components Deggendorf GmbH
Publication of EP3864281A1 publication Critical patent/EP3864281A1/fr
Application granted granted Critical
Publication of EP3864281B1 publication Critical patent/EP3864281B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/005—Fuel-injectors combined or associated with other devices the devices being sensors
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1886—Details of valve seats not covered by groups F02M61/1866 - F02M61/188
    • 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
    • F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
    • 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
    • F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
    • 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
    • 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
    • F02M2200/24—Fuel-injection apparatus with sensors
    • F02M2200/242—Displacement sensors
    • 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
    • F02M2200/24—Fuel-injection apparatus with sensors
    • F02M2200/245—Position sensors, e.g. Hall sensors
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8046—Fuel injection apparatus manufacture, repair or assembly the manufacture involving injection moulding, e.g. of plastic or metal
    • 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply
    • F02M2700/072—Injection valve actuated by engine for supply of pressurised fuel; Electrically or electromagnetically actuated injectors
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • 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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/005—Measuring or detecting injection-valve lift, e.g. to determine injection timing

Definitions

  • the present invention relates to an injector, which is also called an injection valve.
  • injectors are typically used in internal combustion engines and generally function according to a servo principle in which an actuator is set in motion by applying a voltage and a nozzle needle of the injector is lifted out of a nozzle needle seat by a hydraulic transmission system, thereby injecting a fuel under high pressure into a combustion chamber.
  • the basic operating principle of an injector is known to those skilled in the art and is only partially explained in the present invention.
  • the nozzle needle and the nozzle needle seat have been used as switches so that when the nozzle needle is raised, a current flowing from the nozzle needle to the nozzle needle seat is interrupted.
  • the actual opening time can be determined in a relatively simple manner using a differential current measurement.
  • the switch formed by the contact pairing of needle tip and needle seat, to the ground potential.
  • the ground potential is typically formed by the engine block in which the injector is located and in which it is screwed in. There is therefore already a connection from the nozzle needle seat to ground via the outer casing of the injector.
  • the problem with this is that under certain circumstances the current flowing through the switch is very high. There are states in the injector where it is energized but the switch is still closed. This is the case, for example, when the energization has only just started and the needle has not yet been lifted out of its seat.
  • the WO 2016/012242 A1 shows a prior art having the features of the preamble of claim 1.
  • a high-temperature resistor chip as a resistor to limit the current flow when a switch is closed is advantageous because such a high-temperature resistor chip is compact in its design and has only a very small change in resistance when the temperature changes.
  • the high-temperature resistor chip is preferably characterized in that its average power in the period of 5000 ⁇ s is in the range of 0.10 to 0.12 W, preferably in the range of 0.11 to 0.12 W.
  • the high-temperature resistance chip can have a working temperature range of -55°C to +300°C, so that it remains usable even with the greatest temperature fluctuations, and/or have a non-magnetic structure.
  • the non-magnetic structure guarantees that no components of the injector are influenced in an unwanted way and their performance is impaired.
  • the high-temperature resistor chip does not contain any organic components.
  • the input line and the output line are connected to an electromagnet, wherein the electromagnet preferably causes the nozzle needle tip to be lifted out of the nozzle needle seat when it is acted upon by current conducted via the input line and the output line.
  • the electromagnet preferably causes the nozzle needle tip to be lifted out of the nozzle needle seat when it is acted upon by current conducted via the input line and the output line.
  • the input line and the output line each represent a contact of a coil which is part of an electromagnet.
  • the contacts of the coil are made of corrosion-resistant stainless steel. This material is particularly resistant to the conditions prevailing in the injector and is in particular not susceptible to fuels dispensed by the injector.
  • the high-temperature resistance chip is attached to the input line or the output line in an electrically conductive state by means of contact adhesive or soldering.
  • a line running from the high-temperature resistance chip to the switch (3) runs in a plastic overmolding of a magnetic coil, wherein the magnetic coil is designed to set the nozzle needle in motion.
  • the plastic overmold not only surrounds a magnetic coil of the injector but also serves as a sheath for a line leading to the switch.
  • This line is typically an intermediate piece that extends from the connection of the input line to the first connection of the switch, typically the nozzle needle.
  • the resistor can also be arranged on or in the plastic overmolding. If it is arranged inside the plastic overmolding, it is also advantageous that the resistor is then better protected against harmful influences.
  • the injector housing is made of an electrically conductive material.
  • the injector housing is connected to the ground potential. This is typically done via an engine block with which an injector interacts during its intended use.
  • the invention further comprises an internal combustion engine with an injector according to one of the variants discussed above and a device according to the variants discussed above.
  • the invention further includes a motor vehicle having the internal combustion engine defined above.
  • Fig.1 shows some parts of an injector 1 according to the invention.
  • the input and output lines 4, 5 can be seen there, which correspond to the coil contacts of the coil for the electromagnet in an electromagnetic conversion of the injector 1.
  • the magnetic coil is surrounded by a fuel coating 8, at the lower end of which a contact leading to the seat plate 9 is arranged.
  • a schematic representation of the switch 3 formed by the nozzle needle and nozzle needle seat can be seen, which is open or closed depending on the state of the injector. What is not shown in the figure is that the end of the switch facing away from the seat plate 9 is connected to ground.
  • a high-temperature resistance chip is provided in the line between a coil contact and the first terminal of the switch 3.
  • Fig.2 shows an enlarged section of the Fig.1 and is also provided with current flow arrows. It can be seen that the current flows from the input line into the electromagnet, more precisely the winding of the electromagnet's coil, and then flows back again via the output line 5. In the process, a small amount of current is tapped from the circuit and flows out via the closed switch. The small amount of current is characterized by smaller arrows.
  • Fig.3 shows an embodiment of the injector 1 according to the invention, which has an injector housing 2, an input line 4 leading into the injector housing 2 and an output line 5 leading out of the injector housing 2.
  • an actuator 8 for controlling a nozzle needle is provided, which can be an electromagnet, for example.
  • the mechanical switch 3 is also shown there, which results from the interaction of the movement of the nozzle needle and the nozzle needle seat. If the nozzle needle is lifted out of its seat and the Nozzle released for injection, switch 3 is in its open position. In contrast, when the needle closes, the contact is closed and switch 3 is in its conductive state.
  • a first connection 6 of switch 3 is connected to input line 4 via a resistor R, a high-temperature resistor chip according to the invention.
  • the second connection 7 of switch 3 is electrically connected to injector housing 2, which is typically equivalent to ground potential 9 during operation.
  • the information as to whether the needle lift switch 3 is closed or open and thus whether the injection takes place or not is detected by the current difference between the input and output lines.
  • the injector When the injector is activated, a voltage is applied to the input line 4 and the input line 5, which causes the nozzle needle to be indirectly set in motion via the actuator 8, which can be designed as an electromagnet.
  • the needle lifts out of its seat and thus opens the contact. As a result, fuel is injected into the combustion chamber.
  • the current flowing into the injector is compared with the current flowing out. If switch 3 is closed, slightly more current flows into injector 1 at one of the connections than out of the second connection. This is because part of the current flows directly to ground 9 via switch 3. This makes it quite easy to detect whether the switch is closed or not.
  • switch 3 is open. If both currents are different, this means that switch 3 is closed. However, this type of detection only works if a voltage is applied to injector 1, since a current flow is required for detection.

Landscapes

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

Claims (12)

  1. Injecteur (1) destiné à l'injection de carburant, comprenant :
    un boîtier d'injecteur (2),
    une aiguille d'injection mobile, qui est disposée dans le boîtier d'injecteur (2) et qui présente une pointe d'aiguille d'injection, et
    un siège d'aiguille d'injection destiné au logement de la pointe d'aiguille d'injection, dans lequel
    un appariement de contact de l'aiguille d'injection et du siège d'aiguille d'injection représente un commutateur (3) mécanique, qui prend un état fermé lors d'un contact entre la pointe d'aiguille d'injection et le siège d'aiguille d'injection et un état ouvert lors d'une interruption du contact,
    l'injecteur (1) dispose d'une ligne d'entrée (4) et d'une ligne de sortie (5) destinées à la commande d'un mouvement de l'aiguille d'injection,
    la ligne d'entrée (4) et la ligne de sortie (5) représentant chacune un contact d'une bobine qui fait partie d'un électroaimant (8),
    l'injecteur est caractérisé en ce que
    le commutateur (3) présente un premier raccordement (6) qui est relié à la ligne d'entrée (4) et un second raccordement (7) qui est relié au boîtier d'injecteur (2), et
    une résistance (R) est branchée entre le premier raccordement (6) du commutateur (3) et la ligne d'entrée (4),
    dans lequel la résistance (R) est une puce de résistance haute température.
  2. Injecteur (1) selon la revendication précédente 1, dans lequel une puissance moyenne de la puce de résistance haute température se situe, dans l'intervalle de 5000 µs, dans la plage de 0,10 à 0,12 W, de préférence dans la plage de 0,11 à 0,12 W.
  3. Injecteur (1) selon l'une des revendications précédentes, dans lequel une plage de température de service de la puce de résistance haute température comprend -55 °C à -300 °C, de telle sorte qu'elle est opérationnelle même en cas de variations de température les plus élevées.
  4. Injecteur (1) selon l'une des revendications précédentes, dans lequel la puce de résistance haute température possède une construction non magnétique et/ou ne présente aucun constituant organique.
  5. Injecteur (1) selon l'une des revendications précédentes, dans lequel la ligne d'entrée (4) et la ligne de sortie (5) sont reliées à un électroaimant (8), l'électroaimant (8) entraînant de préférence un soulèvement de la pointe d'aiguille d'injection hors du siège d'aiguille d'injection lorsqu'il est soumis à l'action d'un courant passant par la ligne d'entrée (4) et la ligne de sortie (5).
  6. Injecteur (1) selon l'une des revendications précédentes, dans lequel les contacts de la bobine sont constitués d'acier allié résistant à la corrosion.
  7. Injecteur (1) selon l'une des revendications précédentes, dans lequel la puce de résistance haute température est fixée à la ligne d'entrée (4) ou la ligne de sortie (5), dans un état conducteur d'électricité, par colle de contact ou par soudure.
  8. Injecteur (1) selon l'une des revendications précédentes, dans lequel une ligne s'étendant de la puce de résistance haute température au commutateur (3) s'étend dans un enrobage en matière plastique d'une bobine d'électroaimant, la bobine d'électroaimant étant conçue pour mettre l'aiguille d'injection en mouvement.
  9. Injecteur (1) selon l'une des revendications précédentes, dans lequel le boîtier d'injecteur (2) est constitué d'un matériau conducteur d'électricité.
  10. Dispositif selon l'une des revendications précédentes, dans lequel le boîtier d'injecteur (2) est relié à un potentiel de masse.
  11. Moteur à combustion interne comportant un injecteur (1) selon l'une des revendications précédentes.
  12. Véhicule automobile comportant un moteur à combustion interne selon la revendication 11.
EP19790178.8A 2018-10-17 2019-10-16 Injecteur Active EP3864281B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018125803.8A DE102018125803A1 (de) 2018-10-17 2018-10-17 Injektor
PCT/EP2019/078043 WO2020079050A1 (fr) 2018-10-17 2019-10-16 Injecteur

Publications (2)

Publication Number Publication Date
EP3864281A1 EP3864281A1 (fr) 2021-08-18
EP3864281B1 true EP3864281B1 (fr) 2024-05-08

Family

ID=68290232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790178.8A Active EP3864281B1 (fr) 2018-10-17 2019-10-16 Injecteur

Country Status (5)

Country Link
US (1) US11421638B2 (fr)
EP (1) EP3864281B1 (fr)
CN (1) CN112955644B (fr)
DE (1) DE102018125803A1 (fr)
WO (1) WO2020079050A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020111787A1 (de) 2020-04-30 2021-11-04 Liebherr-Components Deggendorf Gmbh Vorrichtung zur Zustandserfassung eines Kraftstoffinjektors

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60129483A (ja) * 1983-12-14 1985-07-10 Diesel Kiki Co Ltd 電磁弁
US4957085A (en) * 1989-02-16 1990-09-18 Anatoly Sverdlin Fuel injection system for internal combustion engines
JP3740733B2 (ja) * 1996-02-13 2006-02-01 いすゞ自動車株式会社 内燃機関の燃料噴射装置
DE10319329A1 (de) * 2003-04-29 2004-11-25 Siemens Ag Einspritzventil mit Sitzkontaktschalter
JP2007515618A (ja) * 2003-09-30 2007-06-14 エフエーファオ モトレンテクニーク ゲゼルシャフト ミット ベシュレンクテル ハフツング センサ装置
DE102004046192B4 (de) * 2004-09-23 2006-12-28 Siemens Ag Schaltungsanordnung und Verfahren zum Laden und Entladen wenigstens einer kapazitiven Last
EP2224123A1 (fr) * 2009-02-25 2010-09-01 Delphi Technologies Holding S.à.r.l. Actionneur piézoélectrique
DE102013220528B4 (de) * 2013-10-11 2015-05-07 Continental Automotive Gmbh Einspritzventil und Verfahren zum Betreiben eines Einspritzventils
FR3023875A1 (fr) * 2014-07-15 2016-01-22 Delphi Int Operations Luxembourg Sarl Injecteur de carburant
FR3024183B1 (fr) * 2014-07-22 2019-07-26 Delphi Technologies Ip Limited Injecteur de carburant
CN104763568B (zh) * 2015-04-09 2017-06-30 中国第一汽车股份有限公司无锡油泵油嘴研究所 一种电磁式喷射阀以及用于操作电磁式喷射阀的方法
DE102017116379A1 (de) * 2017-07-20 2019-01-24 Liebherr-Components Deggendorf Gmbh Vorrichtung zur Zustandserfassung eines Injektors
DE202018100337U1 (de) * 2018-01-22 2019-04-24 Liebherr-Components Deggendorf Gmbh Injektor und Vorrichtung zur Zustandserfassung eines solchen Injektors
DE102018214135A1 (de) * 2018-08-22 2020-02-27 Robert Bosch Gmbh Verfahren zur Ansteuerung eines Injektors
DE102018221683A1 (de) * 2018-12-13 2020-06-18 Hyundai Motor Company Verfahren zum Betreiben eines Kraftstoffeinspritzsystems eines Kraftfahrzeugs und Kraftstoffeinspritzsystem

Also Published As

Publication number Publication date
CN112955644A (zh) 2021-06-11
US11421638B2 (en) 2022-08-23
EP3864281A1 (fr) 2021-08-18
US20210388802A1 (en) 2021-12-16
CN112955644B (zh) 2024-02-23
WO2020079050A1 (fr) 2020-04-23
DE102018125803A1 (de) 2020-04-23

Similar Documents

Publication Publication Date Title
DE102011005672B4 (de) Verfahren, Vorrichtung und Computerprogramm zur elektrischen Ansteuerung eines Aktuators zur Bestimmung des Zeitpunkts eines Ankeranschlags
EP1979598B1 (fr) Dispositif pour commander des soupapes d'injection de carburant inductives
WO1990005845A1 (fr) Soupape magnetique, notamment pour pompes d'injection de carburant
EP0807757A1 (fr) Injecteur de combustible pour moteur à combustion interne
DE19932548A1 (de) Dualelektromagneten mit einer Einzelschaltung und Brennstoffeinspritzvorrichtung, die diese anwendet
EP3743613B1 (fr) Dispositif de détection de l'état d'un injecteur
DE19880737B4 (de) Verfahren zur Funktionsüberwachung eines elektromagnetischen Aktuators
WO2017102208A1 (fr) Injecteur de carburant
DE102006016892A1 (de) Verfahren zur Steuerung wenigstens eines Magnetventils
DE102005049259B3 (de) Ventilvorrichtung
EP3864281B1 (fr) Injecteur
DE3507130A1 (de) Treiberstromkreis fuer eine magnetspule
EP0573437B1 (fr) Dispositif pour la saisie du moment du debut d'injection dans le cas d'un injecteur
DE3873194T2 (de) Sicherheitssteuerungsvorrichtung fuer einen betaetiger vom typ des klappenrueckschlagelektroventils mit solenoid.
EP2496824B1 (fr) Ensemble soupape de commande
DE102006025360B3 (de) Vorrichtung zum Schalten induktiver Kraftstoff-Einspritzventile
EP1511928A1 (fr) Procede et dispositif pour mesurer et regler les temps d'ouverture et de fermeture d'une soupape de distribution piezoelectrique
DE19854306A1 (de) Steller mit kapazitivem Element
DE102004029906B4 (de) Verfahren und Vorrichtung zum Steuern eines Einspritzventils und Computerprogramm
DE102016219189B4 (de) Bestimmen eines Magnetventil-Öffnungszeitpunktes
DE10140093A1 (de) Verfahren und Vorrichtung zum Ansteuern eines Magnetventils
EP2357353B1 (fr) Procédé de reconnaissance du moment de fermeture d'un élément de soupape d'injection dans une soupape d'injection de carburant et soupape d'injection de carburant
DE102020213169B3 (de) Verfahren und Vorrichtung zur Bewegungsdiagnose eines Ankers eines Magnetventils
DE102017219571A1 (de) Verfahren zur Überprüfung eines Magnetaktors
DE102011077059A1 (de) Kraftstoffeinspritzventil

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210510

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20220324

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20231208

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20240326

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019011245

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20240508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240508

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240909

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240508