EP3025358B1 - Dispositif de commande électromagnétique et système d'ajustement de fonctionnalité d'un composant de véhicule - Google Patents

Dispositif de commande électromagnétique et système d'ajustement de fonctionnalité d'un composant de véhicule Download PDF

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Publication number
EP3025358B1
EP3025358B1 EP14729227.0A EP14729227A EP3025358B1 EP 3025358 B1 EP3025358 B1 EP 3025358B1 EP 14729227 A EP14729227 A EP 14729227A EP 3025358 B1 EP3025358 B1 EP 3025358B1
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European Patent Office
Prior art keywords
guide
housing
face
actuating
offset
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EP14729227.0A
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German (de)
English (en)
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EP3025358A1 (fr
Inventor
Maria GRÜNER
Timo Rigling
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ETO Magnetic GmbH
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ETO Magnetic GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • 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
    • 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
    • H01F7/1638—Armatures not entering the winding
    • H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F01L2009/2125—Shaft and armature construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets

Definitions

  • the present invention relates to an electromagnetic actuator according to the preamble of the main claim, as shown in the DE 10 2011 050 730 A1 or the DE 10 2011 003 760 A1 is known. Furthermore, the present invention relates to a system for adjusting a functionality of an adjustment groove offering a motor vehicle assembly using such an electromagnetic actuator.
  • Electromagnetic actuating devices are known from the prior art which find particular and advantageous application as camshaft adjusting devices for an internal combustion engine.
  • Such a presumed as generic device discloses the WO 2008/155119 A1 the applicant, in which the electromagnetic actuator in the form of a multi-actuator comprises a plurality of parallel guided, driven by respective anchor units ram devices, which can engage according to a respective adjustment position with a Verstellnut the camshaft adjustment.
  • An armature unit assigned to a respective one of the tappet units advantageously has a driver section (formed for example from a cylindrical, a planned surface for interacting with an armature end opposite the tappet unit) and an elongate guide tappet which is arranged in a stationary core of a respective armature unit (armature means ) is guided axially movable.
  • a driver section formed for example from a cylindrical, a planned surface for interacting with an armature end opposite the tappet unit
  • an elongate guide tappet which is arranged in a stationary core of a respective armature unit (armature means ) is guided axially movable.
  • FIGS. 2 and 3 illustrate the starting situation for the present invention in the form of a development of the WO 2008/155119 known technology
  • the Fig. 2 one in a (cylindrical here) housing 10 recorded double actuator in the form of a pair of each of coil units 12 enclosed stationary core elements 14, 16, opposite each armature units 18 and 20 are driven parallel to a housing central axis 22 movable.
  • this drive is effected by a repulsive force generated by means of the coil units 12 with respective activation on driver sections 24 and 26 of the respective anchor units 18 and 20, said driver sections having axially magnetized permanent magnet discs; for further explanation, the previously published version will also be referred to WO 2008/155119 directed.
  • elongated-plunger-like armature guide portions 28 and 30 are axially movably guided in a housing guide portion and allow the opposite the guide portions 28, 30 widened drivers 24 and 26 respectively there eccentrically sessile and magnetically adherent Tappet units 34 and 36 can lead out of the guide housing portion 32. End then engage engagement ends 38 and 40 of the plunger 34, 36 in a (respectively be driven) extended engagement state with an associated cam cam timing cam and thus cause in an otherwise known manner the adjustment of the engine functionality by the Verstellnut with engaging therein ram end axial movement forces an associated cam adjusting shaft.
  • FIG. 5 illustrates how a (only schematically shown) electromagnetic actuator, concretely formed approximately in the configuration of Fig. 2, 3rd , engages with an engagement end 40 of a plunger in the extended state in an adjusting groove 42 of an adjustment provided for, to its own adjustment axis 44 rotating shaft.
  • the settlements of the Fig. 6 7 respectively show that the groove 42 does not extend approximately radially around the circumference of this shaft, but rather as an axial offset X, as in FIG Fig. 6 shown.
  • the shaft is thus displaceable around this axial stroke by the engagement of the plunger end 38, namely by the electromagnetic actuating device (typically stationary and immovably mounted in the engine compartment or on the internal combustion engine itself) with its plunger 36 (or the associated engagement end 40) shown by way of example ) in the engaged state in Fig. 7 shown way (dashed double-dot line 48) moves and ensures that the (along the adjustment axis 44 immovable) plunger with its plunger end by engaging in the groove adjustment along the stroke x in Fig. 6 causes.
  • Konkret shows the illustration for illustration Fig.
  • a pair of plunger units 34, 36 in FIG Fig. 2, Fig. 3
  • a symmetry axis 60 asculturen Halbierende both an end face 62 of the housing portion 32, and a surrounding end face 64 of the housing 10
  • the discussed force input visualized as arrow 58, generates a torque on the housing portion 32 relative to the surrounding Case 10.
  • the torque illustrated by the illustration 68 results in a mechanical connection between the housing guide portion 32 (here integrally ansaftendem, the housing end face 64 forming annular flange) and the hollow cylindrical housing 10, which typically via a press fit or the like Connection is realized is charged.
  • the load is additionally reinforced by the mechanism described in the background to the prior art.
  • this offset is dimensioned according to an advantageous angle of attack of the lateral force vector (caused by the groove) on the respective ram end in the range between 5 and 40 °, preferably between 10 and 30 °, and more preferably between 10 and 20 °. so that in this way then the force vector through the (respective) center of the surface, so the respective center of area or centroid and thus in this lateral force entry no mechanically adverse torque more on the housing guide portion (relative to the armature housing portion) acts.
  • the advantage is achieved that especially in a long-term continuous operation with a variety of groove interventions no additional burden of this critical connection point arises.
  • the guide end face ie the end face of the guide housing section
  • the inventive offset is effective for the housing end face to neutralize the adverse torque load of the housing connection between the (anchor) housing and the housing guide portion.
  • a dimensioning or design rule is specified for the offset according to the invention.
  • offset v bx tan ⁇ , where b is half the distance between the guide openings (more precisely: whose centers) corresponds.
  • angle ⁇ it is preferred to set the angle ⁇ to an angle of between 5 ° and 40 ° for typical groove geometries, more preferably to a range between 10 ° and 30 °, even more preferably to a range between approximately 10 ° and 15 °.
  • the plunger which is typically realized from a metal material, can be made wear-resistant in a special manner, for example by (local) hardening at the engagement end; additionally or alternatively, it is possible to connect the elongate plunger unit along its direction of extent with a plurality (typically fixed) and inextricably linked) different material sections in such a way that a desired increased wear resistance is realized by correspondingly hard and for this purpose optimized materials.
  • the inventively claimed system provides the electromagnetic actuator according to the invention in relation to the motor vehicle unit, specifically in that the electromagnetic actuator is claimed in accordance with the main claim in cooperation with an adjusting groove having, axially displaceably mounted adjustment axis.
  • this is positioned for actuation by engagement with the engagement end relative to the actuator such that a force vector applied in an engaged state from the adjustment groove to the engagement end extends (in projection) through the centroid of the housing face, in other words, the groove geometry the angle given by the force vector and / or a distance between two adjacent plunger units in the end face is arranged so that according to the invention no torque acts on the housing guide portion.
  • the present invention achieves significant mechanical enhancement of the generic art, such that by evenly displacing at least one of the ram units out of the face (s) along at least one axis dimension, significant torque reduction (up to torque neutralization) occurs laterally through the control groove the relevant plunger and thus acting on the housing connection between the housing guide portion and (surrounding) armature housing torque can be achieved.
  • Fig. 1 shows in a schematic manner and analogous to the representation of the (self-selected) prior art according to Fig. 4 the realization of the invention on the concrete embodiment of the Doppelaktuators, as shown in the FIGS. 2 and 3 was described with constructive details. Unless otherwise explained below, the details shown in the figures for execution apply equally, in particular, taking into account the below to be discussed in detail offset v, the implementation of Fig. 1 respectively.
  • Fig. 9 as an embodiment of Invention with recourse to the structural elements of Fig. 2, 3rd can be realized.
  • FIG. Fig. 1 shows the representation of the Fig. 1 in that engagement ends 38 'and 40', respectively, are displaced out of center of area 66 by an offset v along an axis of symmetry 80 in order to be displaced by engagement with groove 42 (FIG. Fig. 5 to 8 Insofar as analog) generated lateral force vector 58 now passes through this center 66, according to this force (for lack of lever arm) no more torque is placed on the housing 32.
  • the present invention is not limited to the embodiment shown. Rather, any other configurations, including the exact configuration of each associated anchor units whose arrangement in the housing or the like according to a particular application are designed and varied, this also applies to other embodiments of the housing - for example, the housing 32 may be made in several parts.
  • the present invention is particularly suitable for the context of use for adjusting a motor functionality of an internal combustion engine, however, the invention is not limited to this purpose, but it is possible in principle and of the invention to make other applications of this optimized technology accessible.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (11)

  1. Dispositif de réglage électromagnétique avec deux moyens d'ancrage (24, 26, 18, 20) qui sont configurés pour exercer une force de réglage sur deux unités à coulisseau (34, 36) allongées le long d'un axe longitudinal de déplacement, voisines l'une de l'autre et guidées de façon mobile parallèlement dans une portion de guidage (32) commune d'un boîtier recevant les moyens d'ancrage, les unités à coulisseau présentant respectivement une extrémité de prise (38, 40) constituée pour la coopération avec une rainure de réglage d'un système de réglage de moteur de véhicule automobile, sortant de la portion de guidage au moins dans un état de prise, et la portion de guidage commune constituant une face frontale de guidage (62) dans laquelle des ouvertures de guidage, en particulier des alésages de guidage, affectées aux deux unités à coulisseau, sont dégagées,
    caractérisé en ce
    qu'un tronçon de raccordement (2b) traversant des axes médians des seulement deux ouvertures de guidage, en particulier des alésages de guidage, dans la face frontale de guidage constitue un décalage (v) par rapport à un point central de surface (66), en particulier un centre de masse de surface, de la face frontale de guidage.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que la médiatrice du tronçon de raccordement constitue un axe de symétrie pour la face frontale de guidage et/ou la face frontale de boîtier.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que la face frontale de guidage constitue un contour circonférentiel circulaire, ovale, rectangulaire ou polygonal, ou décrit circonférentiellement des formes mixtes de ces contours.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le décalage est agencé de telle sorte que l'on a la relation : décalage v = b ⋅ tan α ,
    Figure imgb0007
     b correspondant à la demi-dimension du tronçon de raccordement, et α correspondant à un angle entre 5° et 40°, de préférence entre 10° et 30°.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le décalage est agencé de telle sorte que l'on a la relation : décalage v = a ⋅ sinn α ,
    Figure imgb0008
     a correspondant à la distance entre un axe médian de l'une des ouvertures de guidage dans la face frontale de guidage et/ou face frontale de boîtier et un point central de surface (66) respectif, et
    α correspondant à un angle entre 5° et 40°, de préférence entre 10° et 30°.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que la portion de guidage (32) est raccordée, de préférence bloquée en rotation, sur ou dans un boîtier d'ancrage (10) élargi au moins dans une direction transversale par rapport à la face frontale de guidage.
  7. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce qu'au moins une des unités à coulisseau (34, 36) est réalisée dans la zone de l'extrémité de prise (38, 40) dans un matériau présentant une résistance accrue à l'usure.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que les moyens d'ancrage fournissent un tronçon d'entraînement (24, 26) constitué pour la mise en place détachable de l'une des unités à coulisseau affectée avec une extrémité opposée à l'extrémité de prise.
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce qu'au moins une des unités à coulisseau est guidée de façon rotative dans la portion de guidage (32) et/ou les unités à coulisseau (34, 36) sont guidées de façon parallèle entre elles.
  10. Système de réglage de la fonctionnalité d'un élément de véhicule automobile fournissant une rainure de réglage (42), en particulier d'un dispositif de réglage d'arbre à cames d'un moteur à combustion présentant la rainure de réglage, avec un dispositif de réglage électromagnétique avec
    une pluralité de moyens d'ancrage (24, 26, 18, 20) qui sont constitués pour exercer une force de réglage sur une pluralité d'unités à coulisseau (34, 36) allongées le long d'un axe longitudinal de déplacement, voisines l'une de l'autre et guidées de façon mobile dans une portion de guidage (32) commune d'un boîtier recevant les moyens d'ancrage,
    les unités à coulisseau présentant respectivement une extrémité de prise (38, 40) constituée pour la coopération avec une rainure de réglage d'un système de réglage de moteur de véhicule automobile, sortant de la portion de guidage au moins dans un état de prise, et la portion de guidage commune constituant une face frontale de guidage (62) dans laquelle des ouvertures de guidage, en particulier des alésages de guidage, affectées à la pluralité des unités à coulisseau sont dégagées, et
    un tronçon de raccordement (2b) traversant des axes médians des seulement deux ouvertures de guidage, en particulier des alésages de guidage, dans la face frontale de guidage constituant un décalage (v) par rapport à un point central de surface (66), en particulier un centre de masse de surface, de la face frontale de guidage,
    et un axe de réglage présentant la rainure de réglage (42), supporté de façon axialement coulissante, qui est positionné pour l'actionnement par une prise avec l'extrémité de prise (40) relativement au dispositif de réglage électromagnétique de telle sorte que la projection du vecteur de force (58) sur la face frontale d'une force exercée sur l'extrémité de prise dans un état de prise de la rainure de réglage s'étend à travers le point central de surface de la face frontale de boîtier.
  11. Système selon la revendication 10, caractérisé en ce que le dispositif de réglage électromagnétique est orienté relativement à l'axe de réglage de telle sorte que l'axe de réglage (44) s'étend à angle droit par rapport à un axe médian (22) du dispositif de réglage s'étendant à travers le point central de surface (66) de la face frontale de boîtier et parallèlement à l'axe longitudinal de déplacement et peut être déplacé axialement dans l'état de prise.
EP14729227.0A 2013-07-26 2014-05-16 Dispositif de commande électromagnétique et système d'ajustement de fonctionnalité d'un composant de véhicule Active EP3025358B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013108027.8A DE102013108027A1 (de) 2013-07-26 2013-07-26 Elektromagnetische Stellvorrichtung und System zur Verstellung einer Funktionalität eines Kraftfahrzeugaggregats
PCT/EP2014/060094 WO2015010803A1 (fr) 2013-07-26 2014-05-16 Dispositif de réglage électromagnétique et système de réglage d'une fonctionnalité d'un groupe de véhicule automobile

Publications (2)

Publication Number Publication Date
EP3025358A1 EP3025358A1 (fr) 2016-06-01
EP3025358B1 true EP3025358B1 (fr) 2017-11-08

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Country Status (5)

Country Link
US (1) US9702278B2 (fr)
EP (1) EP3025358B1 (fr)
CN (1) CN105359232B (fr)
DE (1) DE102013108027A1 (fr)
WO (1) WO2015010803A1 (fr)

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DE102015217886A1 (de) * 2015-09-17 2017-03-23 Thyssenkrupp Ag Verschiebeelement zum Verschieben eines Nockensegmentes
DE112016006658B4 (de) 2016-05-16 2022-03-03 Mitsubishi Electric Corporation Elektromagnetischer Aktor und Verfahren zur Herstellung desselben
JP6920096B2 (ja) * 2017-04-27 2021-08-18 株式会社ミクニ 電磁アクチュエータ
DE102017121947A1 (de) * 2017-09-21 2019-03-21 Kendrion (Villingen) Gmbh Stellvorrichtung mit einem abgedichteten Führungszylinder
DE102019105938A1 (de) * 2019-03-08 2020-09-10 Eto Magnetic Gmbh Elektromagnetische Stellvorrichtung mit adaptierbarer Stößelanordnung
US11886055B2 (en) 2019-12-22 2024-01-30 Mellanox Technologies, Ltd. Low voltage modulator
US11855700B2 (en) 2021-12-16 2023-12-26 Mellanox Technologies, Ltd. High bandwidth optical modulator
US11906873B2 (en) 2022-01-05 2024-02-20 Mellanox Technologies, Ltd. Serial data conversion redundancy using optical modulators

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SE532372C2 (sv) 2007-03-21 2009-12-29 Lars Haakan Wernersson Fjädrande infästande arrangemang
DE102007028600B4 (de) * 2007-06-19 2011-06-22 ETO MAGNETIC GmbH, 78333 Elektromagnetische Stellvorrichtung
DE102008024086A1 (de) * 2008-05-17 2009-11-19 Daimler Ag Ventiltriebvorrichtung
DE202008013654U1 (de) * 2008-10-17 2010-03-04 Eto Magnetic Gmbh Elektromagnetische Stellvorrichtung
DE102009009081A1 (de) * 2009-02-14 2010-08-19 Schaeffler Technologies Gmbh & Co. Kg Aktuator zur Verstellung eines Schiebenockensystems
DE102009015486A1 (de) 2009-03-28 2010-09-30 Schaeffler Technologies Gmbh & Co. Kg Elektromagnetischer Aktuator
DE202009006940U1 (de) * 2009-04-16 2010-09-02 Eto Magnetic Gmbh Elektromagnetische Nockenwellen-Verstellvorrichtung
DE102011003760B4 (de) 2010-11-29 2022-03-24 Schaeffler Technologies AG & Co. KG Elektromagnetische Stellvorrichtung
DE102011050730A1 (de) * 2011-05-30 2012-12-06 Eto Magnetic Gmbh Nockenwellenverstellvorrichtung
EP2587495B1 (fr) 2011-10-26 2014-12-10 Eto Magnetic GmbH Dispositif de réglage électromagnétique

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US9702278B2 (en) 2017-07-11
CN105359232B (zh) 2017-11-28
EP3025358A1 (fr) 2016-06-01
CN105359232A (zh) 2016-02-24
US20160186622A1 (en) 2016-06-30
WO2015010803A1 (fr) 2015-01-29
DE102013108027A1 (de) 2015-01-29

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