EP3347590B1 - Injecteur de carburant, procédé de détermination de la position d'un induit mobile et commande de moteur - Google Patents

Injecteur de carburant, procédé de détermination de la position d'un induit mobile et commande de moteur Download PDF

Info

Publication number
EP3347590B1
EP3347590B1 EP16734726.9A EP16734726A EP3347590B1 EP 3347590 B1 EP3347590 B1 EP 3347590B1 EP 16734726 A EP16734726 A EP 16734726A EP 3347590 B1 EP3347590 B1 EP 3347590B1
Authority
EP
European Patent Office
Prior art keywords
armature
fuel injector
coil
electrically insulating
pole piece
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
EP16734726.9A
Other languages
German (de)
English (en)
Other versions
EP3347590A1 (fr
Inventor
Hong Zhang
Nikolay Belyaev
Anatoliy Lyubar
Gerd RÖSEL
Markus Stutika
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.)
Vitesco Technologies GmbH
Original Assignee
Vitesco Technologies 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 Vitesco Technologies GmbH filed Critical Vitesco Technologies GmbH
Publication of EP3347590A1 publication Critical patent/EP3347590A1/fr
Application granted granted Critical
Publication of EP3347590B1 publication Critical patent/EP3347590B1/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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0024—Valves characterised by the valve actuating means electrical, e.g. using solenoid in combination with permanent magnet
    • 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
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
    • 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
    • F02M51/0689—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means and 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
    • 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
    • F02M51/0689—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means and permanent magnets
    • F02M51/0692—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means and permanent magnets as valve or armature return means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • 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
    • F02D2041/2051—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using voltage 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
    • F02D2041/2055—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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/08—Fuel-injection apparatus having special means for influencing magnetic flux, e.g. for shielding or guiding magnetic flux
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F2007/1676—Means for avoiding or reducing eddy currents in the magnetic circuit, e.g. radial slots

Definitions

  • the present invention relates to the technical field of fuel injectors.
  • the present invention relates in particular to a fuel injector for an internal combustion engine of a motor vehicle.
  • the present invention also relates to a method for determining a position of a movable armature in a fuel injector for an internal combustion engine of a motor vehicle as well as an engine controller which is set up to use the method.
  • Figure 1 shows a solenoid injector 1 with idle stroke between armature 3 and nozzle needle 5.
  • the armature 3 When a voltage is applied to the coil 4 mounted in the coil housing 7, the armature 3 is moved in the direction of the pole piece 2 by electromagnetic forces. As a result of mechanical coupling, after the idle stroke has been overcome, the nozzle needle 5 also moves and releases injection holes for fuel supply. Armature 3 and nozzle needle 5 continue to move until armature 3 strikes pole piece 2 (needle stroke). To close the injector 1, the excitation voltage is switched off and thus the magnetic force is reduced. The nozzle needle 5 and armature 3 are moved into the closed position by the spring force of the spring 6. Idle stroke and needle stroke are run through in reverse order. In the case of fuel injectors without an idle stroke, this need not first be overcome, otherwise the control of such a fuel injector proceeds in a similar manner.
  • the patent application DE 38 43 138 A1 described measurement of the coil current or the voltage superimposed characteristic signals used. It is known that a feedback signal can be obtained on coil-operated assemblies by the eddy-current-driven coupling between the mechanics (armature 3 and injector needle 5) and magnetic circuit (coil 4 and the magnetic parts around coil 4, i.e. armature 3, pole piece 2, coil housing 7, injector housing and magnetic ring on top of the coil, which form the magnetic circuit) is used to generate the signal.
  • the physical effect is based on the speed-dependent self-induction in the electromagnetic circuit as a result of the movement of the armature 3 and the injector needle 5.
  • a voltage is induced in the electromagnet or a characteristic change in the course of the induced voltage is caused, which is superimposed on the control signal (characteristic signal).
  • EP 2 455 603 A1 discloses a method for detecting the opening and closing process of an injector, the injector having a permanent magnet in order to increase the closing force which extends in the housing at least over the entire stroke of the armature next to the armature.
  • the evaluation of the characteristic signal shape is particularly problematic for the detection of opening. Since the magnetic circuit is typically in magnetic saturation when it is opened or is driven into magnetic saturation, as well as being influenced by the other static (e.g. leakage flux, non-linearity) and dynamic (e.g. magnetic flux displacement, eddy currents) phenomena, the effect on the magnetic circuit is minimal and therefore difficult to detect. Even with the detection of the closing time the characteristic signal can be very weak depending on the design of the magnetic circuit.
  • the DE 10 2008 001 822 A1 discloses a solenoid valve which has a slotted armature plate to reduce eddy currents.
  • the present invention is based on the object of providing an improved fuel injector with reduced eddy current-related losses, which at the same time also has good detection properties.
  • the present invention is also based on the object of providing a method for determining the armature position in such a fuel injector.
  • a fuel injector for an internal combustion engine of a motor vehicle has: (a) a pole piece, (b) one along an axis of movement movable armature, (c) a coil and (d) a permanent magnet, wherein the movable armature has at least one electrically insulating element which is designed to reduce eddy currents in the armature, and wherein the permanent magnet is mounted so that it generates a magnetic field, which causes a force acting on the armature in the direction of the pole piece.
  • the permanent magnet is attached subsequently to the coil in the direction of the axis of movement of the armature or it is attached radially outwards of the coil relative to the axis of movement of the armature.
  • the fuel injector described is based on the knowledge that the electrically insulating element reduces the eddy currents in the armature and thus improves the efficiency of the fuel injector and that the attachment of the permanent magnet increases the voltage induced by the armature movement, so that this induced voltage even with reduced eddy currents can be used to detect the opening and closing of the fuel injector.
  • the magnetic field generated by the permanent magnet also leads, due to the magnetic force acting on the armature, to faster opening of the fuel injector when a voltage pulse is applied to the coil. Overall, the present invention thus provides a fuel injector with improved efficiency and improved dynamic and detection properties.
  • the at least one electrically insulating element has or consists of a slot filled with air and / or an electrically insulating material and / or a non-magnetic material.
  • an “electrically insulating element” is therefore also understood to mean an air gap.
  • each electrically insulating area specifically designed to reduce eddy currents in the armature represents an “electrically insulating element”, even if the area is not formed by a solid body.
  • At least one slot is formed in the armature so that it interrupts a potential eddy current path.
  • the slot can be filled exclusively with air, it can be filled exclusively with an electrically insulating material, it can be filled exclusively with a non-magnetic material or it can be filled with any combination of two or three of the aforementioned substances / materials, such as for example a combination of air and electrically insulating material, a combination of air and non-magnetic material, a combination of electrically insulating material and non-magnetic material, or a combination of air, electrically insulating material and non-magnetic material.
  • the non-magnetic material is in particular also electrically insulating.
  • the mechanical stability and the hydraulic properties of the armature can be improved.
  • the anchor can be constructed in one piece or modular.
  • the at least one slot can be formed during a casting process when the anchor is being formed or subsequently by cutting or milling.
  • the at least one slot can be formed between individual modules.
  • the armature is formed from two or more sheet metal parts, which are essentially isolated from one another by the at least one electrically insulating element.
  • the armature consists of several sheet metal parts, for example iron layers, which are completely or partially separated from one another by the at least one electrically insulating element, so that as many potential eddy current paths as possible are interrupted.
  • At least one electric insulating element can in particular consist of a thin layer or foil of insulating material.
  • the at least one electrically insulating element extends radially relative to the movement axis of the armature.
  • the at least one electrically insulating element forms a surface which extends radially outward from the movement axis or from an area in the vicinity of the movement axis.
  • the slots filled with air or an electrically insulating solid material extend radially to the axis of movement from the outside into the armature. In the axial direction, the slots preferably extend over the entire length of the armature.
  • Preferred embodiments have one, two, three, four, five, six, seven, eight or even more such insulating surfaces.
  • the permanent magnet is attached next to the coil and radially outward relative to the axis of movement of the armature.
  • the permanent magnet is arranged following the coil radially outward. In particular, it laterally encloses the coil in plan view along the axis of movement.
  • the permanent magnet is attached to the outside of the coil when it is viewed in the direction of the axis of movement of the armature.
  • the permanent magnet preferably has an axial magnetization in order to form a magnetic field which surrounds the coil windings and causes a force acting on the armature in the direction of the pole piece, i.e. parallel to the axis of movement of the armature.
  • the fuel injector furthermore has a coil housing which contains the permanent magnet.
  • the coil housing with the permanent magnet encloses at least that part of the coil that does not point in the direction of the axis of movement or lies inward.
  • the pole piece and / or the coil housing has at least one electrically insulating element which is designed to reduce eddy currents in the pole piece or the coil housing.
  • the at least one electrically insulating element in the pole piece and / or coil housing can generally be formed in a manner similar to the above-described electrically insulating element in the armature.
  • the pole piece and / or the coil housing can be constructed in a modular, one-piece or laminated manner and the at least one electrically insulating element can be formed as a slot or a layer of insulating material.
  • the armature and / or the pole piece and / or the coil housing has a material that generates few eddy currents.
  • the material can be a soft magnetic composite material which is formed, for example, from iron particles that are coated with an inorganic insulation. Such materials are known to the person skilled in the art, for example under the trademark "Somaloy".
  • a method for determining a position of a movable armature in a fuel injector for an internal combustion engine of a motor vehicle is described.
  • the fuel injector has a coil.
  • the armature has at least one electrically insulating element which is designed to reduce eddy currents.
  • the fuel injector has a permanent magnet which is attached in such a way that it generates a magnetic field which causes a force acting on the armature in the direction of a pole piece.
  • the acquisition of the time profile of the electrical voltage over and / or the electrical current intensity through the coil can take place while the fuel injector is being activated.
  • the control of the fuel injector is in particular the energization of the coil with the operating current in order to move the armature for the injection of fuel from a closed position to the pole piece into an open position and to hold the armature in the open position if necessary.
  • the acquisition of the time profile of the electrical voltage over and / or the electrical current intensity through the coil during the Closing process - ie after switching off the operating current through the coil - take place.
  • the method determines the beginning and end of opening and closing processes of the fuel injector.
  • the combination of the armature with the permanent magnet - provided with the electrically insulating element - is particularly important for detecting the induction voltage or the induced current of the coil during the closing process advantageous in order to obtain an induction signal that is satisfactory for position determination in spite of the suppressed eddy currents.
  • an engine controller for a vehicle which is set up to carry out the method according to the second aspect.
  • This engine control enables efficient and flexible control of the fuel injector, whereby energy can be saved in the control and the injection quantities can be set very precisely at the same time.
  • the motor control can be done by means of a computer program, i. software, as well as by means of one or more special electrical circuits, i. in hardware or in any hybrid form, i.e. using software components and hardware components.
  • the Figure 1 shows a fuel injector 1 according to the prior art.
  • the known fuel injector 1 with idle stroke shows how initially described, a pole piece 2, a movable armature 3, a coil 4, a nozzle needle 5, a spring 6 and a coil housing 7.
  • the known fuel injector 1 is not described further at this point.
  • the Figure 2 shows a fuel injector 200 according to an embodiment of the invention.
  • the fuel injector 200 is basically in the same way as the known fuel injector 1 in FIG Figure 1 but differs from this in at least two aspects, as will be further explained below.
  • the fuel injector 200 with idle stroke has a pole piece 202, an armature 204 movable along the axis of movement 205, a coil 206, a permanent magnet 208, a coil housing 210, a nozzle needle 212 and a spring 214.
  • the permanent magnet 208 is attached to the outside of the coil 206 in the coil housing 210 and magnetized in a direction that is parallel to the axis of movement 205 of the armature 204, so that a magnetic field indicated by the dashed line 216 is permanently present.
  • the magnetic field 216 provides a force on the armature 204 which acts in the direction of the pole piece 202, that is, parallel to the axis of movement 205.
  • the armature 204 has at least one electrically insulating element in order to reduce eddy currents in the armature 204.
  • the at least one electrically insulating element is in the Figure 2 not shown, but will be used in conjunction with the below Figures 4A and 4B described.
  • the armature can be constructed from a special material, for example from a soft magnetic composite material such as Somaloy®, which generates few eddy currents.
  • the reduction in the eddy currents leads to improved energy efficiency due to the correspondingly reduced losses, so that the necessary magnetic force at a lower current strength in the Coil 206 can be reached. As a result, the opening process can also be completed more quickly.
  • the latter is additionally supported by the permanently present magnetic field 216, since this provides a force offset. If an increase in the closing speed is desired, the spring force of the spring 214 can be increased relative to the spring 6 in the known fuel injector 1. Furthermore, the permanently present magnetic field 216 has the result that a voltage is induced in the coil 206 when the armature 204 and / or the needle 212 move.
  • the state of the fuel injector 200 with regard to the opening and closing process can be detected, that is to say the position of the armature 204 can be determined.
  • the opening process can best be detected by evaluating the induced current.
  • the Figure 3 shows a fuel injector 300 according to an embodiment not belonging to the invention.
  • the fuel injector 300 differs from that in FIG Figure 2 fuel injector 200 shown and described above in that the permanent magnet 308 is not attached to the outside but to the top of the coil 306.
  • the permanent magnet 308 is magnetized in a direction which is perpendicular to the movement axis 305 of the armature 304, so that a magnetic field identified by the dashed line 316 is also permanently present in this embodiment.
  • the permanent magnet 308 is attached to the underside of the coil 306.
  • FIGS. 4A and 4B show embodiments of an armature 404a, 404b for a fuel injector according to embodiments of the invention. More specifically, the anchor 404a in FIG Figure 4A a total of eight electrically insulating elements 420 which extend radially outward relative to the movement axis 405 and thus effectively interrupt possible eddy current paths in the armature 405.
  • the electrically insulating elements 420 are shown in FIG Figure 4A shown as slots in armature 404a, but can nonetheless be designed as insulating layers.
  • the anchor can be modular or laminated. There may be fewer or more than eight elements 420.
  • the slots 420 can be empty, i.e.
  • the armature 404a as 404b can be made of a material (for example a soft magnetic composite material such as Somaloy®) which has the property of generating few eddy currents.
  • the fuel injectors 200 and 300 described above can furthermore be provided in the pole piece 202, 302 in order to reduce eddy currents also in the pole piece 202, 302 and thus to further improve the efficiency and dynamics.
  • electrically insulating elements can also be provided in the coil housing 210, 310 in order to reduce eddy currents in the coil housing 210, 310 and thus to further improve the efficiency and dynamics.
  • Such insulating elements can, for example, be used in the same manner as those just referred to in relation to the Figures 4A and 4B elements 420 described be constructed.
  • the pole piece 202, 302 and the coil housing 210, 310 can also have an eddy current-reducing material, such as Somaloy®.
  • the Figure 5 shows a graphic illustration 500 of the time curves of the voltage 502 induced in the coil 206, 306 and the armature position 504 during an injection process of a fuel injector according to the invention, for example the fuel injector 200 or 300.
  • the control is initiated with a voltage pulse (boost voltage) , which quickly builds up an operating current through the coil 206, 306, which magnetizes the coil 206, 306, so that the armature 204, 304 is moved from a closed position in the direction of the pole piece 202, 302 to an open position.
  • boost voltage boost voltage
  • the armature 204, 306 is held against the pole piece 202, 302 by a holding voltage which is reduced compared to the boost voltage. In this state, the voltage induced in coil 206, 306 drops and disappears if neither the operating current changes nor the armature 204, 304 moves.
  • the present invention provides an improved fuel injector which, compared to known fuel injectors, has improved energy efficiency and improved properties with regard to movement detection.

Claims (10)

  1. Injecteur de carburant (200 ; 300) destiné à un moteur à combustion interne d'un véhicule automobile, l'injecteur de carburant (200 ; 300) comportant
    - une pièce polaire (202 ; 302),
    - un induit (204 ; 304 ; 404a ; 404b) mobile le long d'un axe de déplacement,
    - une bobine (206 ; 306) et
    - un aimant permanent (208 ; 308), caractérisé en ce que l'induit mobile (204 ; 304 ; 404a ; 404b) comporte au moins un élément électriquement isolant qui est conçu pour réduire les courants de Foucault dans l'induit (204 ; 304 ; 404a ; 404b), et l'aimant permanent (208 ; 308) étant monté de manière à générer un champ magnétique (316) qui produit une force agissant sur l'induit en direction de la pièce polaire (202 ; 302), l'aimant permanent (208 ; 308) étant ensuite fixé par rapport à l'axe de déplacement de l'induit (204 ; 304 ; 404a ; 404b) radialement vers l'extérieur de la bobine (206 ; 306) et étant magnétisé dans une direction parallèle à l'axe de déplacement de l'induit (204 ; 304 ; 404a ; 404b).
  2. Injecteur de carburant (200 ; 300) selon la revendication 1, l'au moins un élément électriquement isolant comportant une fente (420) remplie d'air et/ou d'un matériau électriquement isolant et/ou d'un matériau non magnétique.
  3. Injecteur de carburant (200 ; 300) selon la revendication 1, l'induit (204 ; 304 ; 404a ; 404b) étant formé de deux pièces en tôle ou plus qui sont sensiblement isolées l'une de l'autre par l'au moins un élément électriquement isolant.
  4. Injecteur de carburant (200 ; 300) selon l'une des revendications précédentes, l'au moins un élément électriquement isolant s'étendant radialement par rapport à l'axe de déplacement de l'induit (204 ; 304 ; 404a ; 404b).
  5. Injecteur de carburant (200 ; 300) selon l'une des revendications précédentes, comprenant en outre un boîtier de bobine (210 ; 310) qui contient l'aimant permanent (208 ; 308).
  6. Injecteur de carburant (200 ; 300) selon l'une des revendications précédentes, la pièce polaire (202 ; 302) et/ou le boîtier de bobine (210 ; 310) comportant au moins un élément électriquement isolant qui est conçu pour réduire les courants de Foucault dans la pièce polaire (202 ; 302) ou le boîtier de bobine (210 ; 310).
  7. Injecteur de carburant (200 ; 300) selon l'une des revendications précédentes, l'induit (204 ; 304 ; 404a ; 404b) et/ou la pièce polaire (202 ; 302) et/ou le boîtier de bobine (210 ; 310) comprenant un matériau qui génère peu de courants de Foucault.
  8. Procédé de détermination d'une position (504) d'un induit mobile (204 ; 304 ; 404a ; 404b) dans un injecteur de carburant (200 ; 300) selon l'une des revendications 1 à 7 destiné à un moteur à combustion interne d'un véhicule automobile, le procédé comprenant les étapes suivantes :
    - détecter la variation dans le temps de la tension électrique aux bornes de la bobine (206 ; 306) et/ou de l'intensité du courant électrique à travers celle-ci,
    - analyser la variation dans le temps détectée de la tension électrique et/ou la variation dans le temps détectée de l'intensité du courant afin d'identifier une tension induite (502) et/ou un courant induit qui sont induits dans la bobine (206, 306) notamment en raison du déplacement de l'induit et du champ magnétique (216 ; 316) généré par l'aimant permanent (208 ; 308), et
    - déterminer la position de l'induit sur la base de la tension induite (502) et/ou du courant induit.
  9. Procédé selon la revendication 8, comprenant les étapes supplémentaires suivantes :
    - alimenter la bobine (206 ; 306) avec un courant de fonctionnement pour déplacer l'induit (204 ; 304 ; 404a ; 404b) d'une position fermée en direction de la pièce polaire (202 ; 302) vers une position ouverte afin d'injecter du carburant,
    - couper le courant de fonctionnement pour amorcer un processus de fermeture au cours duquel l'induit (204 ; 304 ; 404a, 404b) retourne de la position ouverte à la position fermée, la détection de la variation dans le temps de la tension électrique aux bornes de la bobine (206 ; 306) et/ou de l'intensité du courant électrique à travers celle-ci étant effectuée pendant le processus de fermeture.
  10. Commande de moteur d'un véhicule, laquelle commande est conçue pour exécuter un procédé selon la revendication 8 ou 9.
EP16734726.9A 2015-09-11 2016-07-06 Injecteur de carburant, procédé de détermination de la position d'un induit mobile et commande de moteur Active EP3347590B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015217362.3A DE102015217362A1 (de) 2015-09-11 2015-09-11 Kraftstoffinjektor, Verfahren zum Ermitteln der Position eines beweglichen Ankers und Motorsteuerung
PCT/EP2016/066042 WO2017041925A1 (fr) 2015-09-11 2016-07-06 Injecteur de carburant, procédé de détermination de la position d'un induit mobile et commande de moteur

Publications (2)

Publication Number Publication Date
EP3347590A1 EP3347590A1 (fr) 2018-07-18
EP3347590B1 true EP3347590B1 (fr) 2020-11-11

Family

ID=56345174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16734726.9A Active EP3347590B1 (fr) 2015-09-11 2016-07-06 Injecteur de carburant, procédé de détermination de la position d'un induit mobile et commande de moteur

Country Status (6)

Country Link
US (1) US10920728B2 (fr)
EP (1) EP3347590B1 (fr)
KR (1) KR102111221B1 (fr)
CN (1) CN108026883A (fr)
DE (1) DE102015217362A1 (fr)
WO (1) WO2017041925A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3084772B1 (fr) * 2018-08-01 2021-06-18 Schneider Electric Ind Sas Actionneur electromagnetique et appareil de commutation electrique comportant cet actionneur
CN109378151B (zh) * 2018-11-28 2021-08-06 四川航天烽火伺服控制技术有限公司 一种微型自锁式电磁铁
JP7435430B2 (ja) 2020-12-14 2024-02-21 株式会社デンソー 噴射制御装置
KR102554863B1 (ko) * 2020-12-15 2023-07-12 주식회사 제이시스메디칼 자기장을 이용한 무침 주사기
KR102619606B1 (ko) * 2021-09-30 2023-12-28 주식회사 현대케피코 연료분사밸브 및 그 구동방법
CN114458503B (zh) * 2022-03-09 2022-09-02 哈尔滨工程大学 一种多永磁-电磁耦合磁路的高响应高速电磁阀

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127585A (en) * 1989-02-25 1992-07-07 Siemens Aktiengesellschaft Electromaagnetic high-pressure injection valve

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375461A1 (fr) * 1976-12-22 1978-07-21 Souriau & Cie Capteur de levee d'aiguille d'injecteur
DE3843138A1 (de) 1988-12-22 1990-06-28 Bosch Gmbh Robert Verfahren zur steuerung und erfassung der bewegung eines ankers eines elektromagnetischen schaltorgans
JP4342751B2 (ja) * 2001-07-23 2009-10-14 株式会社日本自動車部品総合研究所 燃料噴射弁
WO2008028509A1 (fr) 2006-09-07 2008-03-13 Fluid Automation Systems S.A. Soupape bistable
CN101016874B (zh) * 2007-03-13 2011-08-03 中国计量学院 一种用于机动车的节油喷射装置
EP2119990A1 (fr) * 2008-05-16 2009-11-18 Siemens Aktiengesellschaft Installation de four
DE102008001822A1 (de) * 2008-05-16 2009-11-19 Robert Bosch Gmbh Magnetventil mit Ankerschlitzung
DE102009045307A1 (de) * 2009-10-02 2011-04-07 Robert Bosch Gmbh Verfahren und Steuergerät zum Betreiben eines Ventils
DE102009047525A1 (de) * 2009-12-04 2011-06-09 Robert Bosch Gmbh Elektromagnetisch betätigbares Ventil
DE102010029595A1 (de) 2010-06-01 2011-12-01 Robert Bosch Gmbh Magnetbaugruppe sowie Einspritzventil mit einer Magnetbaugruppe
EP2455603A1 (fr) * 2010-11-17 2012-05-23 Continental Automotive GmbH Ensemble de soupape pour soupape d'injection et soupape d'injection
GB201207289D0 (en) * 2011-06-14 2012-06-06 Sentec Ltd Flux switch actuator
JP5633479B2 (ja) * 2011-06-30 2014-12-03 株式会社デンソー 内燃機関の制御装置
JP5825001B2 (ja) * 2011-09-16 2015-12-02 ブラザー工業株式会社 印刷システム、プリンタ、中継装置、プリンタのプログラム、及び印刷方法
JP2014235916A (ja) * 2013-06-03 2014-12-15 パナソニック株式会社 電磁駆動装置及び該電磁駆動装置を用いた電磁継電器

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127585A (en) * 1989-02-25 1992-07-07 Siemens Aktiengesellschaft Electromaagnetic high-pressure injection valve

Also Published As

Publication number Publication date
CN108026883A (zh) 2018-05-11
US10920728B2 (en) 2021-02-16
DE102015217362A1 (de) 2017-03-16
KR20180041160A (ko) 2018-04-23
KR102111221B1 (ko) 2020-05-14
EP3347590A1 (fr) 2018-07-18
WO2017041925A1 (fr) 2017-03-16
US20180195482A1 (en) 2018-07-12

Similar Documents

Publication Publication Date Title
EP3347590B1 (fr) Injecteur de carburant, procédé de détermination de la position d'un induit mobile et commande de moteur
DE19518056B4 (de) Einrichtung zur Steuerung der Ankerbewegung einer elektromagnetischen Schaltanordnung und Verfahren zur Ansteuerung
DE60128021T2 (de) Positionsmesseinrichtung in einem elektromagnetischen Hubventil und Verfahren zur Befestigung derselben
DE102014200365A1 (de) Sensoranordnung und Magnetisierungsvorrichtung sowie Verwendung der Sensoranordnung in einem Kraftfahrzeugsteuergerät
DE19948238A1 (de) Brennstoffeinspritzventil
DE102010056435A1 (de) Solenoidbetätigte Vorrichtung und Verfahren dafür
EP1925814A1 (fr) Injecteur de carburant pour un dispositif de mesure
DE102015206729A1 (de) Steuern eines Kraftstoffeinspritz-Magnetventils
DE102011016895B4 (de) Verfahren zur Bestimmung des Verschleißzustandes eines elektromagnetischen Aktors während dessen Betriebs
DE102010041880A1 (de) Ermitteln der ballistischen Flugbahn eines elektromagnetisch angetriebenen Ankers eines Spulenaktuators
DE102006058073A1 (de) Magnetventil für ein Kraftstoffeinspritzsystem
DE102015206739B4 (de) Bestimmung eines Hubes eines Magnetventils
DE102012108583B4 (de) Elektromagnet
DE102006059375A1 (de) Elektromagnetischer Aktuator sowie Verfahren zur Herstellung eines Bauteils für einen elektromagnetischen Aktuator
DE102013102276B4 (de) Verdrehschutz
EP1774165B1 (fr) Soupape d'injection de carburant
EP2496824B1 (fr) Ensemble soupape de commande
DE102017204855B3 (de) Verfahren zum Erkennen einer Veränderung eines zumindest einen Teil eines Gesamtluftspaltes bildenden Arbeitsweges eines Magnetankers eines Kraftstoffeinspritzventils
DE102017204849B3 (de) Verfahren zum Erkennen einer Veränderung eines zumindest einen Teil eines Gesamtluftspaltes bildenden Arbeitsweges eines Magnetankers eines Kraftstoffeinspritzventils
DE102019121538A1 (de) Sitzplatte für einen Injektor und Verfahren zum Herstellen einer solchen Sitzplatte
DE102016203645A1 (de) Verfahren zur Ansteuerung eines Magnetventils
DE102011117688B3 (de) Hysteresearmer Hubmagnet und Verfahren zu seiner Herstellung
DE102015209946A1 (de) Elektromagnet
DE102012218325A1 (de) Aktuatoreinheit, insbesondere für die Einspritzung eines Kraftstoffs in einen Brennraum einer Verbrennungskraftmaschine
DE102013207162B4 (de) Verfahren und Datenverarbeitungseinrichtung zum Reduzieren eines Einschaltstroms für ein Ventil einer Hochdruckpumpe

Legal Events

Date Code Title Description
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: 20180411

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

AX Request for extension of the european patent

Extension state: BA ME

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: 20200107

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VITESCO TECHNOLOGIES GMBH

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: 20200713

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

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: AT

Ref legal event code: REF

Ref document number: 1333709

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502016011678

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: NL

Ref legal event code: MP

Effective date: 20201111

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

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: 20201111

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: 20210212

Ref country code: RS

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: 20201111

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: 20210311

Ref country code: NO

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: 20210211

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

Ref country code: SE

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: 20201111

Ref country code: PL

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: 20201111

Ref country code: LV

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: 20201111

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: 20210311

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: 20210211

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

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: 20201111

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

Ref country code: EE

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: 20201111

Ref country code: CZ

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: 20201111

Ref country code: LT

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: 20201111

Ref country code: SM

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: 20201111

Ref country code: RO

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: 20201111

Ref country code: SK

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: 20201111

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502016011678

Country of ref document: DE

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

Ref country code: DK

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: 20201111

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20210812

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: 20201111

Ref country code: AL

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: 20201111

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

Ref country code: SI

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: 20201111

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502016011678

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GMBH, 30165 HANNOVER, DE

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

Ref country code: ES

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: 20201111

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210706

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

Ref country code: MC

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: 20201111

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210731

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210706

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

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: 20210311

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210706

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

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

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210706

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210731

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1333709

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210706

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

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210706

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

Ref country code: HU

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

Effective date: 20160706

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

Ref country code: CY

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: 20201111

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

Effective date: 20230530

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230724

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230731

Year of fee payment: 8