EP2473716A2 - Device for adjusting a camshaft of an internal combustion engine - Google Patents

Device for adjusting a camshaft of an internal combustion engine

Info

Publication number
EP2473716A2
EP2473716A2 EP10743029A EP10743029A EP2473716A2 EP 2473716 A2 EP2473716 A2 EP 2473716A2 EP 10743029 A EP10743029 A EP 10743029A EP 10743029 A EP10743029 A EP 10743029A EP 2473716 A2 EP2473716 A2 EP 2473716A2
Authority
EP
European Patent Office
Prior art keywords
unit
camshaft
penetration depth
control groove
control
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.)
Granted
Application number
EP10743029A
Other languages
German (de)
French (fr)
Other versions
EP2473716B1 (en
Inventor
Thomas Schiepp
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.)
ETO Magnetic GmbH
Original Assignee
ETO Magnetic 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 ETO Magnetic GmbH filed Critical ETO Magnetic GmbH
Publication of EP2473716A2 publication Critical patent/EP2473716A2/en
Application granted granted Critical
Publication of EP2473716B1 publication Critical patent/EP2473716B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F01L13/0042—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 being 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • 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

Definitions

  • the present invention relates to a device for adjusting the camshaft of an internal combustion engine according to the preamble of the main claim.
  • Such a device is known from applicant's PCT / EP 2008/006417 and describes how an actuating element (typically a pestle or the like actuating pin) can effect an axial, predetermined adjustment of the camshaft by interaction with a profile associated with the camshaft. This is particularly relevant for those applications in which different cam tracks are to be assigned switchable to an internal combustion engine.
  • an actuating element typically a pestle or the like actuating pin
  • the known from the generic state of the art ram unit together with the cooperating electromagnetic actuator is structurally complex, for the realization of the known groove engagement functionality in two penetration depths, the known ram unit has an arrangement consisting of an inner plunger (small diameter) and a surrounding outer plunger larger Diameter, which are assigned to the respective control grooves and the corresponding penetration depth.
  • Object of the present invention is therefore to improve a device for camshaft adjustment according to the preamble of the main claim in terms of a simplified structural realization, thus potentially increased reliability and reduction of the required components and assembly costs.
  • the profile element with two control grooves of different penetration depths is actuated by a plunger unit, which has a constant outside diameter at the engagement end in both penetration depths.
  • a plunger unit which has a constant outside diameter at the engagement end in both penetration depths.
  • the (preferred and typically designed as a one-piece, pin-like cylindrical body) ram unit is actuated by a bi- or unstable actuator which moves an anchor unit along the direction of movement and both for the first penetration depth (with associated first stable Stellposition) as well as for the second penetration depth (with an associated second stable setting position) offers respective reliably controllable anchor positions.
  • the anchor unit according to the invention can be moved to a third setting position, which is out of engagement with the first and the second control groove.
  • the realization of the two different penetration depths with the tappet unit is advantageously made possible at first (Single) axial mounting location can be provided and depending on the set activation for the parking positions according to the control grooves (grooves) can selectively select and run, which then the rotation of the Hubprofilelements the intended axial displacement (in the respectively desired or set direction) is effected.
  • the geometry of the control grooves is particularly preferably configured such that an axial movement in a first direction of the camshaft can be effected by means of a first control groove of a first depth and a subsequent setting of the ram unit to a second penetration depth then moves off the second control groove and the camshaft counteracts first axial direction leads back.
  • the system can be supplemented by a third control groove, which then allows an axial movement (as well as a respective axial movement back) in a second, the first direction opposite axial direction of the camshaft.
  • the armature unit is implemented as part of the electromagnetic actuator by means of at least one permanent magnet unit, it is useful to achieve a bi- or tristable device to design the armature unit with a pair of axially opposite, further education disk-shaped magnet.
  • the permanent magnets can then be used to enable a currentless-stable state (the term "currentless-stable" in the context of the invention should be understood to mean that a parking position by the anchor unit (and the associated ram unit ) is reached and held without current supply to the coil unit is required).
  • the electromagnetic adjusting device tristable in such a way that a third (preferably stable) position is achieved in the axial direction between two axial end positions, preferably by adhering respective permanent magnet units to a stationary core region on the one hand, that a stable intermediate state is achieved by mutual, oppositely directed attraction effect of permanent magnets, additionally and / or alternatively by AC excitation of the coil means a (stable) center position of the armature unit can be achieved, in which none of the permanent magnet units adheres to a stationary core Rather, permanent reverse polarity by the AC signal triggers this state (causing the tristurbance).
  • the ram unit to interact with the armature unit in such a way that the (more preferably one-piece, metallic) ram unit is detachably adhered to the armature unit by magnetic action due to the permanent magnet (preferably on the front side) provided on the armature unit, insofar as maximum flexibility in use and installation is given.
  • the ram unit in such a way that, at one end, in the direction of the permanent magnet unit, it has favorable magnetic properties for adhesive cooperation with the armature unit, at the other end, and for engaging in the profile element or a respective control groove suitable tough or wear-resistant material optimized.
  • a device for adjusting the camshaft of an internal combustion engine is realized by the present invention in a surprisingly simple and effective manner, which combines constructive simplicity with compact design and high reliability.
  • Fig. 1 is a side view of a Hubprofilelements according to a first
  • Embodiment of the invention with partially shown control grooves; a radial development of a complete Steuerutverlaufs the device of FIG. 1;
  • FIG. 5 shows an illustration of the lifting profile element of FIG. 1 in a view rotated relative to FIG. 1;
  • FIG. 6 shows a representation analogous to FIG. 2 for clarifying a setting process
  • FIGS. 3, 4 representations analogous to FIGS. 3, 4 to illustrate a
  • FIG. 6 to illustrate an actuating ( Figure 9) and return ( Figure 10) process in the opposite direction of the example of Fig. 2, Fig. 6; 11 is a perspective view illustrating the structural configuration of the electromagnetic actuator for realizing unstable axial positioning between the three adjusting positions;
  • Fig. 12 a detailed view of the engagement end of the electromagnetic
  • Tappet unit releasably adheres to the armature unit of the electromagnetic actuator by the action of permanent magnets provided on the front side of the armature unit;
  • Fig. 13 a schematic sectional view to illustrate magnetic
  • a control groove 14 (see the lower part of the illustration of FIGS FIG. 1) from a common groove bottom into a left-hand branching groove course 16 of a first, shallower depth (indicated by the dashed line in the development of FIG. 2) and a right-hand deeper groove course 18 (continuous black course in the development of FIG. 2) ) branches.
  • FIGS. 1 to 4 illustrates how a right movement along the arrow 10 is performed by bringing a plunger unit 17 into a first (shallower) penetration depth corresponding to the groove depth of the groove 16. This movement is indicated by the individual arrows 20 in FIG. 2 and is illustrated in the side views of FIGS. 3, 4 (which correspondingly show further rotational positions of the lifting profile element).
  • FIG. 5 to 8 illustrate the axial counter-movement, with which the camshaft can be moved back to the starting position:
  • This path is shown by a Steuerutverlauf 22 (solid black line, illustrates the deep groove bottom), which is approached by the ram unit 17th , which is brought into a second penetration depth corresponding to the course 22.
  • the arrowhead 24 illustrates the Movement, starting from an initial, axially displaced position, in turn, the plunger unit 17 would engage in a recessed groove bottom (this time but in the second, deeper penetration depth) according to reference numeral 26 and on the recessed path 22 (along the arrows 24) remains (via the radial position of Fig. 7) until the home position is reached in accordance with the shift state of Figs. 1, 2 (before shifting there).
  • FIGS. 9, 10 merely illustrates the back and forth in the opposite axial direction:
  • the plunger unit 17 would now move in the deep (second) penetration position of the travel along the groove 18 done (arrow share 28), with the result that one (in the figure level) left movement is controlled.
  • the return from this adjustment position back to the central position ( Figure 10) then takes place by means of a groove 30 of the first depth (dashed line or arrowhead 32) in which case the ram unit 17 in turn engages with a reduced penetration depth.
  • FIGS. 11 to 13 An embodiment will be explained with reference to FIGS. 11 to 13, how an electromagnetic positioning device for moving the ram unit 17 into the respective setting positions can be realized.
  • the anchor unit 46 has a central elongate-cylindrical central portion 48 at both ends
  • Permanent magnet assembly 50 which (at both ends) carries a disc-shaped permanent magnet and an outer surface (top surface) 52 offers, on which then the plunger unit 17 (held by permanent magnet action) removably seated.
  • the armature unit By suitable control of a stationary coil unit 54, the armature unit is moved between respective axial end positions, these end positions being determined by a stop (and permanent-magnetic adhesion state of a respective permanent magnet). To achieve an inventively advantageous instability is also provided that by appropriate pulse-shaped control of the coil unit 54, the armature unit is moved to an axial center position in which none of the permanent magnet units 50 adheres to a housing bottom or a magnetically active core and thus occupies a stable center position. In addition, according to the invention, it is advantageous to induce this middle position of the tristability by means of suitable alternating current control of the permanent magnet means.
  • FIG. 13 illustrates corresponding courses of the magnetic flux for the tristable center position.
  • FIG. 14 illustrates, to the extent that the side views or unrolled views of the lifting profile elements according to FIGS. 1 to 10 complement one another Groove geometry with a groove cross-section of a first cam groove of a first penetration depth 60 (dashed line), in comparison to the groove depth or groove geometry of a second cam groove of a relatively deeper groove depth.
  • This representation is, as well as the schematic representations of FIGS. 1 to 10, purely schematic and not limiting, but the geometries, Nutenverrise and other, lying within the skill of the art embodiments of a particular application would suitably adapt.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

The invention relates to a device for adjusting the camshaft of an internal combustion engine, having a lift profile element (12) which is provided on an axially movably mounted camshaft for conjoint rotation therewith and which provides a control groove, and having a control unit for generating a predetermined axial movement of the camshaft, wherein the control unit has a tappet unit (17) which is movable preferably radially with respect to the camshaft along a movement direction and which is designed for controllable engagement into the lift profile element, and wherein the lift profile element forms a first control groove (16) which is designed to interact with the tappet unit at a first penetration depth so as to describe a first axial movement of the camshaft, and the lift profile element forms a second control groove (18, 22) which is designed to interact with the tappet unit at a second penetration depth, which differs from the first penetration depth, so as to describe a second axial movement, which differs from the first axial movement, of the camshaft. According to the invention, the tappet element (17) has a constant outer diameter at the engagement end at the first penetration depth and at the second penetration depth, and is driven along the movement direction by an electromagnetic actuating device which provides a first stable actuating position for the first penetration depth, a second stable actuating position for the second penetration depth, and a third actuating position for a state in which the tappet element does not engage into the first and second control groove.

Description

Vorrichtung zur Nockenwellenverstellung einer Brennkraftmaschine  Device for adjusting the camshaft of an internal combustion engine
Die vorliegende Erfindung betrifft eine Vorrichtung zur Nockenwellenverstellung einer Brennkraftmaschine nach dem Oberbegriff des Hauptanspruchs. The present invention relates to a device for adjusting the camshaft of an internal combustion engine according to the preamble of the main claim.
Eine derartige Vorrichtung ist aus der PCT/EP 2008/006417 der Anmelderin bekannt und beschreibt, wie ein Betätigungselement (typischerweise ein Stößel od.dgl. Betätigungsstift) durch Zusammenwirken mit einem der Nockenwelle zugeordneten Profil eine axiale, vorbestimmte Verstellung der Nockenwelle bewirken kann. Dies ist insbesondere für solche Anwendungsfälle relevant, bei welchen einem Verbrennungsmotor verschiedene Nockenbahnen umschaltbar zuzuordnen sind. Such a device is known from applicant's PCT / EP 2008/006417 and describes how an actuating element (typically a pestle or the like actuating pin) can effect an axial, predetermined adjustment of the camshaft by interaction with a profile associated with the camshaft. This is particularly relevant for those applications in which different cam tracks are to be assigned switchable to an internal combustion engine.
Aus dem Stand der Technik ist es dabei aus der DE 196 11 641 C1 bekannt, für jede axiale Verschiebeposition der Hubprofilanordnung einen geeignet angetriebenen Stift vorzusehen, welcher dann eine jeweils beabsichtigte Axialverschiebung bewirken kann. Allerdings ist dies konstruktiv aufwändig und benötigt viel Einbauraum am Einsatzort. Aus der als gattungsbildend herangezogenen PCT/EP 2008/006417 ist es ferner bekannt, das Hubprofil mit einer Mehrzahl von Steuernuten zum Zusammenwirken mit der elektromagnetisch angetriebenen Stößeleinheit so auszubilden, dass die Steuernuten in verschiedene Nutentiefen eindringen und damit durch verschiedene (geeignet einzustellende) Eindringtiefen der Stößeleinheit die Nockenwelle in der jeweils gewünschten Weise betätigen können. From the prior art, it is known from DE 196 11 641 C1, to provide for each axial displacement position of the Hubprofilanordnung a suitably driven pin, which can then cause a respective intended axial displacement. However, this is structurally complex and requires a lot of installation space at the site. It is further known from PCT / EP 2008/006417, which is used as a generic form, to configure the lifting profile with a plurality of control grooves for interacting with the electromagnetically driven tappet unit such that the control grooves penetrate into different groove depths and thus through different (suitably adjustable) penetration depths Tappet unit can operate the camshaft in the desired manner.
Allerdings ist die aus dem gattungsbildenden Stand der Technik bekannte Stößeleinheit samt damit zusammenwirkender elektromagnetischer Stellvorrichtung konstruktiv komplex, denn zur Realisierung der bekannten Nuteneingriffsfunktionalität in zwei Eindringtiefen weist die bekannte Stößeleinheit eine Anordnung bestehend aus einem inneren Stößel (geringren Durchmessers) sowie einem diesen umgebenden Außenstößel größeren Durchmessers auf, welche den jeweiligen Steuernuten sowie der entsprechenden Eindringtiefe zugeordnet sind. However, the known from the generic state of the art ram unit together with the cooperating electromagnetic actuator is structurally complex, for the realization of the known groove engagement functionality in two penetration depths, the known ram unit has an arrangement consisting of an inner plunger (small diameter) and a surrounding outer plunger larger Diameter, which are assigned to the respective control grooves and the corresponding penetration depth.
Es ist daher notwendig, das Bewegungsverhalten von Innen- und Außenstößel der bekannten Vorrichtung geeignet konstruktiv und steuerungstechnisch zu realisieren, welches aufwändig und potentiell fehlerträchtig ist. It is therefore necessary to realize the movement behavior of the inner and outer tappets of the known device in a suitable constructive and control-related manner, which is complex and potentially error-prone.
Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung zur Nockenwellenverstellung nach dem Oberbegriff des Hauptanspruchs im Hinblick auf eine vereinfachte konstruktive Realisierung, damit potentiell erhöhte Betriebssicherheit und Reduktion des benötigten Bauteile- und Montageaufwands zu verbessern. Object of the present invention is therefore to improve a device for camshaft adjustment according to the preamble of the main claim in terms of a simplified structural realization, thus potentially increased reliability and reduction of the required components and assembly costs.
Die Aufgabe wird durch die Vorrichtung mit den Merkmalen des Hauptanspruchs gelöst; vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben. The object is achieved by the device having the features of the main claim; advantageous developments of the invention are described in the subclaims.
In erfindungsgemäß vorteilhafter Weise wird das Profilelement mit zwei Steuernuten verschiedener Eindringtiefen betätigt durch eine Stößeleinheit, welche in beiden Eindringtiefen einen konstanten Außendurchmesser am Eingriffsende aufweist. Dies wird erfindungsgemäß dadurch ermöglicht, dass die (bevorzugt und typischerweise als einstückiger, stiftartig-zylindrischer Körper) ausgebildete Stößeleinheit durch einen bi- oder instabilen Aktuator betätigt wird, welcher entlang der Bewegungsrichtung eine Ankereinheit verschiebt und sowohl für die erste Eindringtiefe (mit dazugehöriger erster stabiler Stellposition) als auch für die zweite Eindringtiefe (mit einer zugehörigen zweiten stabilen Stellposition) jeweilige zuverlässig ansteuerbare Ankerpositionen anbietet. Zusätzlich ist erfindungsgemäß vorgesehen, dass die Ankereinheit gemäß der Erfindung in eine dritte Stellposition verbracht werden kann, welche außerhalb des Eingriffs mit der ersten und der zweiten Steuernut steht. In accordance with the invention advantageously, the profile element with two control grooves of different penetration depths is actuated by a plunger unit, which has a constant outside diameter at the engagement end in both penetration depths. This is inventively made possible in that the (preferred and typically designed as a one-piece, pin-like cylindrical body) ram unit is actuated by a bi- or unstable actuator which moves an anchor unit along the direction of movement and both for the first penetration depth (with associated first stable Stellposition) as well as for the second penetration depth (with an associated second stable setting position) offers respective reliably controllable anchor positions. In addition, the invention provides that the anchor unit according to the invention can be moved to a third setting position, which is out of engagement with the first and the second control groove.
Damit wird zunächst erfindungsgemäß vorteilhaft die Realisierung der zwei verschiedenen Eindringtiefen mit der Stößeleinheit ermöglicht, die an einem (einzigen) axialen Montageort vorgesehen sein kann und je nach eingestellter Aktivierung für die Stellpositionen entsprechend die Steuernuten (Nutenbahnen) selektiv auswählen und abfahren kann, womit dann bei Drehung des Hubprofilelements die beabsichtigte Axialverstellung (in der jeweils gewünschten bzw. eingestellten Richtung) bewirkt wird. Thus, according to the invention, the realization of the two different penetration depths with the tappet unit is advantageously made possible at first (Single) axial mounting location can be provided and depending on the set activation for the parking positions according to the control grooves (grooves) can selectively select and run, which then the rotation of the Hubprofilelements the intended axial displacement (in the respectively desired or set direction) is effected.
Dabei ist es einerseits erfindungsgemäß vorgesehen und bevorzugt, die erste und die zweite Steuernuten einander benachbart in einem gemeinsamen und/oder einstückig ausgebildeten Hubprofilelement vorzusehen, wobei diese weiterbildungsgemäß zumindest bereichsweise ineinander übergehen. Auf diese Weise kann dann, in der Art einer Weiche bzw. Verzweigung entlang einer Nutenbahn, durch geeignete Eindringtiefenverstellung in besonders zuverlässiger Weise die Nockenwellenverstellung erfolgen. Besonders bevorzugt ist dabei die Geometrie der Steuernuten so ausgestaltet, dass eine Axialbewegung in einer ersten Richtung der Nockenwelle mittels einer ersten Steuernut einer ersten Tiefe bewirkt werden kann und ein nachfolgendes Einstellen der Stößeleinheit auf eine zweite Eindringtiefe dann die zweite Steuernut abfährt und die Nockenwelle entgegen der ersten axialen Richtung zurückführt. It is provided on the one hand according to the invention and preferred to provide the first and the second control grooves adjacent to each other in a common and / or integrally formed Hubprofilelement, these further education at least partially merge into one another. In this way, then, in the manner of a switch or branch along a groove track, by suitable Eindringtiefenverstellung in a particularly reliable manner, the camshaft adjustment. In this case, the geometry of the control grooves is particularly preferably configured such that an axial movement in a first direction of the camshaft can be effected by means of a first control groove of a first depth and a subsequent setting of the ram unit to a second penetration depth then moves off the second control groove and the camshaft counteracts first axial direction leads back.
Zusätzlich weiterbildungsgemäß ist das System ergänzbar um eine dritte Steuernut, welche dann ein axiales Bewegen (sowie ein jeweiliges axiales Zurück-Bewegen) in eine zweite, der ersten Richtung entgegengesetzten axialen Richtung der Nockenwelle ermöglicht. In addition, according to further development, the system can be supplemented by a third control groove, which then allows an axial movement (as well as a respective axial movement back) in a second, the first direction opposite axial direction of the camshaft.
In konstruktiv besonders bevorzugter Weise ist die Ankereinheit als Bestandteil der elektromagnetischen Stellvorrichtung realisiert mittels mindestens einer Permanentmagneteinheit, wobei es zum Erreichen einer bi- oder tristabilen Vorrichtung sinnvoll ist, die Ankereinheit mit einem Paar von einander axial gegenüberliegenden, weiterbildungsgemäß scheibenförmigen Magneten auszugestalten. In weiterbildungsgemäß vorteilhafter Weise können dann die Permanentmagneten dazu benutzt werden, einen stromlos-stabilen Zustand zu ermöglichen (wobei der Begriff „stromlos-stabil" im Rahmen der Erfindung so verstanden werden soll, dass damit eine Stellposition durch die Ankereinheit (sowie der damit verbundenen Stößeleinheit) erreicht und gehalten wird, ohne dass eine Bestromung der Spuleneinheit erforderlich ist). In a structurally particularly preferred manner, the armature unit is implemented as part of the electromagnetic actuator by means of at least one permanent magnet unit, it is useful to achieve a bi- or tristable device to design the armature unit with a pair of axially opposite, further education disk-shaped magnet. In a further advantageous development, the permanent magnets can then be used to enable a currentless-stable state (the term "currentless-stable" in the context of the invention should be understood to mean that a parking position by the anchor unit (and the associated ram unit ) is reached and held without current supply to the coil unit is required).
In konstruktiv besonders eleganter Weise ist es zudem möglich, die elektromagnetische Stellvorrichtung tristabil so auszubilden, dass zwischen zwei, bevorzugt durch ein Haften von jeweiligen Permanentmagneteinheiten an einem stationären Kernbereich bestimmten axialen Endpositionen, in axialer Richtung eine dritte (bevorzugt stabile) Position erreicht wird, nämlich einerseits dadurch, dass durch beiderseitige, einander entgegengesetzt gerichtete Anziehungswirkung von Permanentmagneten ein stabiler Zwischenzustand erreicht wird, ergänzend und/oder alternativ durch eine Wechselstromerregung der Spulenmittel eine (stabile) Mittelposition der Ankereinheit erreicht werden kann, bei welcher keine der Permanentmagneteinheiten an einem stationären Kern haftet, vielmehr dauerhaftes Umpolen durch das Wechselstromsignal diesen (die Tristabilität bewirkenden) Zustand ansteuert. In a structurally particularly elegant manner, it is also possible to make the electromagnetic adjusting device tristable in such a way that a third (preferably stable) position is achieved in the axial direction between two axial end positions, preferably by adhering respective permanent magnet units to a stationary core region on the one hand, that a stable intermediate state is achieved by mutual, oppositely directed attraction effect of permanent magnets, additionally and / or alternatively by AC excitation of the coil means a (stable) center position of the armature unit can be achieved, in which none of the permanent magnet units adheres to a stationary core Rather, permanent reverse polarity by the AC signal triggers this state (causing the tristurbance).
Im Rahmen weiterer bevorzugter Ausbildungen der Erfindung liegt es, die Stößeleinheit so mit der Ankereinheit zusammenwirken zu lassen, dass durch Wirkung der (bevorzugt stirnseitig) an der Ankereinheit vorgesehenen Permanentmagneten die (weiter bevorzugt einstückige, metallische) Stößeleinheit durch Magnetwirkung lösbar an der Ankereinheit haftet, insoweit größtmögliche Flexibilität in Einsatz und Montage gegeben ist. Within the scope of further preferred embodiments of the invention, it is possible for the ram unit to interact with the armature unit in such a way that the (more preferably one-piece, metallic) ram unit is detachably adhered to the armature unit by magnetic action due to the permanent magnet (preferably on the front side) provided on the armature unit, insofar as maximum flexibility in use and installation is given.
Zusätzlich vorteilhaft ist es dann, die Stößeleinheit so zu realisieren, dass diese axial einends, in Richtung auf die Permanentmagneteinheit, günstige magnetische Eigenschaften für das haftende Zusammenwirken mit der Ankereinheit aufweist, anderenends, und zum Eingreifen in das Profilelement bzw. eine jeweilige Steuernut, dort geeignet zäh bzw. verschleißfest materialoptimiert ist. Im Ergebnis wird durch die vorliegende Erfindung in überraschend einfacher und wirksamer Weise eine Vorrichtung zur Nockenwellenverstellung einer Brennkraftmaschine realisiert, welche konstruktive Einfachheit mit kompaktem Aufbau und hoher Betriebssicherheit kombiniert. It is then additionally advantageous to realize the ram unit in such a way that, at one end, in the direction of the permanent magnet unit, it has favorable magnetic properties for adhesive cooperation with the armature unit, at the other end, and for engaging in the profile element or a respective control groove suitable tough or wear-resistant material optimized. As a result, a device for adjusting the camshaft of an internal combustion engine is realized by the present invention in a surprisingly simple and effective manner, which combines constructive simplicity with compact design and high reliability.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnungen; diese zeigen in: Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings; these show in:
Fig. 1 eine seitliche Ansicht eines Hubprofilelements gemäß einer ersten Fig. 1 is a side view of a Hubprofilelements according to a first
Ausführungsform der Erfindung mit partiell dargestellten Steuernuten; eine radiale Abwicklung eines vollständigen Steuernutverlaufs der Vorrichtung gemäß Fig. 1 ;  Embodiment of the invention with partially shown control grooves; a radial development of a complete Steuerutverlaufs the device of FIG. 1;
Ansichten zum Verdeutlichen, wie eine Stößeleinheit im Eingreifen in das Hubprofilelement der Fig. 1 eine axiale Bewegung in rechter Richtung erzeugt (wobei die Stößeleinheit in eine erste, verminderte Eindringtiefe angesteuert wird); To illustrate how a ram unit in engaging the lift profile element of Figure 1 generates an axial movement in the right direction (wherein the ram unit is driven in a first, reduced penetration depth);
Fig. 5: eine Darstellung des Hubprofilelements der Fig. 1 in relativ zur Fig. 1 verdrehter Ansicht; Fig. 6: eine Darstellung analog Fig. 2 zum Verdeutlichen eines Stellvorgangs 5 shows an illustration of the lifting profile element of FIG. 1 in a view rotated relative to FIG. 1; FIG. 6 shows a representation analogous to FIG. 2 for clarifying a setting process
(bzw. Verschiebeweges) entlang einer zweiten Steuernut zum Rückstellen der Nockenwelle aus der durch die Fig. 2 bis 4 verdeutlichten axialen Verschiebeposition; Fig. 7,  (or displacement path) along a second control groove for returning the camshaft from the illustrated by the Figs. 2 to 4 axial displacement position; Fig. 7,
Fig. 8: Darstellungen analog der Fig. 3, 4 zum Verdeutlichen eines  Fig. 8: representations analogous to FIGS. 3, 4 to illustrate a
Stößeleingriffs in eine zweite Eindringtiefe (Fig. 7) zum Bewirken der Rückstellposition, wobei, gemäß Fig. 8, durch Wirkung des Nutenbahnverlaufs die Stößeleinheit graduell aus der zweiten Verschiebeposition herausgedrückt wird; Plunger engagement in a second penetration depth (Fig. 7) for effecting the return position, wherein, as shown in FIG. 8, by action of Nutenbahnverlaufs the plunger unit is gradually pushed out of the second displacement position;
Fig. 9, Fig. 9,
Fig. 10: eine Darstellung der Abwicklung des Nutenverlaufs gemäß Fig. 2, 10: a representation of the development of the Nutenverlaufs of FIG. 2,
Fig. 6 zum Verdeutlichen eines Stell- (Fig. 9) sowie Rückstell- (Fig. 10) Vorgangs in entgegengesetzter Richtung des Beispiels der Fig. 2, Fig. 6; Fig. 11 : eine Perspektivansicht zum Verdeutlichen des konstruktiven Aufbaus der elektromagnetischen Stellvorrichtung um Realisieren eines instabilen axialen Stellens zwischen den drei Stellpositionen;  Fig. 6 to illustrate an actuating (Figure 9) and return (Figure 10) process in the opposite direction of the example of Fig. 2, Fig. 6; 11 is a perspective view illustrating the structural configuration of the electromagnetic actuator for realizing unstable axial positioning between the three adjusting positions;
Fig. 12: eine Detailansicht des Eingriffsendes der elektromagnetischen Fig. 12: a detailed view of the engagement end of the electromagnetic
Stellvorrichtung zum Verdeutlichen, wie eine stiftförmige Actuator to clarify how a pin-shaped
Stößeleinheit durch Wirkung von stirnseitig an der Ankereinheit vorgesehenen Permanentmagneten an der Ankereinheit der elektromagnetischen Stellvorrichtung lösbar haftet; Fig. 13: eine schematische Schnittansicht zum Verdeutlichen magnetischer Tappet unit releasably adheres to the armature unit of the electromagnetic actuator by the action of permanent magnets provided on the front side of the armature unit; Fig. 13: a schematic sectional view to illustrate magnetic
Flüsse und Kräfte bei der Realisierung einer mittleren Ankerposition für einen instabilen Aktuator und  Rivers and forces in the realization of a middle anchor position for an unstable actuator and
Fig. 14: eine Schnittansicht durch eine Steuernut zum Verdeutlichen der 14 is a sectional view through a control groove to illustrate the
Proportionen und der Relativgeometrie für eine erste (flache) und zweite (tiefe) Nutentiefe.  Proportions and the relative geometry for a first (flat) and second (deep) groove depth.
Anhand der Darstellungen in den Fig. 1 bis 4 wird beschrieben, wie die Vorrichtung zur Nockenwellenverstellung gemäß einer ersten bevorzugten Ausführungsform der Erfindung eine Axialbewegung der Nockenwelle in Richtung der Pfeile 10 (d.h. in der Zeichenebene rechts) bewirkt. Dabei zeigt die Weitenansicht der Fig. 1 (diese ist im Hinblick auf benachbarte weitere Nutenbahnen unvollständig), wie bei einem auf einer (nicht gezeigten) Nockenwelle eines Verbrennungsmotors drehfest montierten Hubprofilelement 12 eine Steuernut 14, welche (vgl. den unteren Bereich der Darstellung der Fig. 1) aus einem gemeinsamen Nutengrund in einen linkseitig verzweigenden Nutverlauf 16 einer ersten, flacheren Tiefe (angedeutet durch die gestrichelte Linie in der Abwicklung der Fig. 2) sowie einen rechtseitigen tieferen Nutenverlauf 18 (durchgehend schwarzer Verlauf in der Abwicklung der Fig. 2) verzweigt. Entsprechend ist es in der Position der Fig. 1 bei angenommener Stößelposition im Nuteneingang 14 möglich, durch geeignete Auswahl (Einstellung) der Stößeltiefe (entsprechend einer jeweiligen Position der den Stößel antreibenden elektromagnetischen Stellvorrichtung) entweder den weiteren Pfad der flacheren Nut 16 bzw. der tieferen Nut 18 zu verfolgen. Das Ausführungsbeispiel der Fig. 1 bis 4 verdeutlicht, wie durch Verbringen einer Stößeleinheit 17 in eine erste (flachere) Eindringtiefe entsprechend der Nutentiefe der Nut 16 eine Rechtsbewegung entlang des Pfeils 10 durchgeführt wird. Diese Bewegung ist durch die Einzelpfeile 20 in Fig. 2 angedeutet und wird in den Seitenansichten der Fig. 3, 4 (welche entsprechend weitere Rotationspositionen des Hubprofilelements zeigen) verdeutlicht. 1 to 4 will be described how the camshaft adjustment device according to a first preferred embodiment of the invention causes an axial movement of the camshaft in the direction of the arrows 10 (ie in the plane of the drawing on the right). 1 (this is incomplete with regard to adjacent further grooves), as in the case of a lifting profile element 12 mounted in a rotationally fixed manner on a camshaft (not shown) of an internal combustion engine, a control groove 14 (see the lower part of the illustration of FIGS FIG. 1) from a common groove bottom into a left-hand branching groove course 16 of a first, shallower depth (indicated by the dashed line in the development of FIG. 2) and a right-hand deeper groove course 18 (continuous black course in the development of FIG. 2) ) branches. Accordingly, it is possible in the position of FIG. 1 assuming ram position in the groove input 14, by suitable selection (adjustment) of the plunger depth (corresponding to a respective position of the plunger driving electromagnetic actuator) either the wider path of the shallower groove 16 and the lower To track groove 18. The embodiment of FIGS. 1 to 4 illustrates how a right movement along the arrow 10 is performed by bringing a plunger unit 17 into a first (shallower) penetration depth corresponding to the groove depth of the groove 16. This movement is indicated by the individual arrows 20 in FIG. 2 and is illustrated in the side views of FIGS. 3, 4 (which correspondingly show further rotational positions of the lifting profile element).
Entsprechend entsteht als Ergebnis der fortgesetzten Rotation des (drehfest auf der Nockenwelle sitzenden) Hubprofilelements relativ zu dem in radialer Richtung stationär stehenden Stößel eine axiale Schubbewegung, welche das Hubprofilelement und mithin die Nockenwelle in der in Fig. 4 in Pfeilrichtung 10 gezeigten Weise nach rechts verschiebt. Accordingly arises as a result of the continued rotation of (non-rotatably seated on the camshaft) Hubprofilelements relative to the stationary in the radial direction ram an axial thrusting movement, which shifts the Hubprofilelement and thus the camshaft in the manner shown in Fig. 4 in the direction of arrow 10 to the right ,
Die Fig. 5 bis 8 verdeutlichen die axiale Gegenbewegung, womit die Nockenwelle wieder zurück in die Ausgangslage verschoben werden kann: Dieser Pfad ist gezeigt durch einen Steuernutverlauf 22 (durchgezogene schwarze Linie, verdeutlicht den tiefen Nutengrund), wobei dieser angefahren wird von der Stößeleinheit 17, welche in eine zweite Eindringtiefe entsprechend dem Verlauf 22 gebracht wird. Die Pfeilschaar 24 verdeutlicht den Bewegungsablauf, ausgehend von einer anfänglichen, axial verschobenen Position, wobei wiederum die Stößeleinheit 17 in einen vertieften Nutengrund (diesmal aber in der zweiten, tieferen Eindringtiefe) gemäß Bezugszeichen 26 eingreifen würde und auf der vertieften Bahn 22 (entlang der Pfeile 24) verbleibt (über die Radialposition der Fig. 7), bis die Ausgangsposition entsprechend dem Verschiebezustand von Fig. 1 , Fig. 2 (vor dem dortigen Verschieben) erreicht wird. 5 to 8 illustrate the axial counter-movement, with which the camshaft can be moved back to the starting position: This path is shown by a Steuerutverlauf 22 (solid black line, illustrates the deep groove bottom), which is approached by the ram unit 17th , which is brought into a second penetration depth corresponding to the course 22. The arrowhead 24 illustrates the Movement, starting from an initial, axially displaced position, in turn, the plunger unit 17 would engage in a recessed groove bottom (this time but in the second, deeper penetration depth) according to reference numeral 26 and on the recessed path 22 (along the arrows 24) remains (via the radial position of Fig. 7) until the home position is reached in accordance with the shift state of Figs. 1, 2 (before shifting there).
Analog zu diesem Hin- und Herschieben in einer ersten axialen Verschieberichtung verdeutlicht lediglich exemplarisch die weitere Darstellung der Figuren 9, 10 das Hin- und Herschieben in der entgegengesetzten axialen Richtung: So würde etwa, ausgehend von der mittigen Stellung, nunmehr durch Verbringen der Stößeleinheit 17 in die tiefe (zweite) Eindringposition der Verfahrweg entlang der Nut 18 erfolgen (Pfeilschaar 28), mit dem Ergebnis, dass eine (in der Figurenebene) Linksbewegung angesteuert wird. Das Zurückführen aus dieser Verstellposition zurück in die Mittelposition (Figur 10) erfolgt dann mittels einer Nut 30 der ersten Tiefe (gestrichelte Linie bzw. Pfeilschaar 32) wobei hier die Stößeleinheit 17 wiederum mit verminderter Eindringtiefe eingreift. Analogously to this shifting back and forth in a first axial direction of displacement, the further illustration of FIGS. 9, 10 merely illustrates the back and forth in the opposite axial direction: For example, starting from the central position, the plunger unit 17 would now move in the deep (second) penetration position of the travel along the groove 18 done (arrow share 28), with the result that one (in the figure level) left movement is controlled. The return from this adjustment position back to the central position (Figure 10) then takes place by means of a groove 30 of the first depth (dashed line or arrowhead 32) in which case the ram unit 17 in turn engages with a reduced penetration depth.
Auf diese Weise lässt sich durch Bewegung einer stiftartig-zylindrischen Stößeleinheit 17 mit lediglich einem (bevorzugt konstanten) Außendurchmesser im Eingriffsbereich in die Nuten dieselbe (vergleichsweise komplexe) Axialbewegung einer Nockenwelle induzieren, wie es beim Stand der Technik durch eine Axialanordnung aus Außen- und Innenstößel (oder einer Mehrzahl axial benachbarter Stößel) möglich gewesen ist. In this way, by moving a pin-like cylindrical ram unit 17 with only one (preferably constant) outer diameter in the engagement area in the grooves induce the same (relatively complex) axial movement of a camshaft, as in the prior art by an axial arrangement of outer and inner tappets (or a plurality of axially adjacent plunger) has been possible.
Anhand der Figuren 11 bis 13 wird ein Ausführungsbeispiel erläutert, wie eine elektromagnetische Stellvorrichtung zum Verbringen der Stößeleinheit 17 in die jeweiligen Stellpositionen realisiert werden kann. Gezeigt ist in der Perspektivdarstellung eine Gehäuseanordnung bestehend aus zwei ineinander verschachtelten U-förmigen Bügeln 40, 42, welche in ihrem jeweiligen Verbindungsbereich einen Durchbruch 44 anbieten, durch welchen eine Ankereinheit 46 geführt ist. Die Ankereinheit 46 weist beidends eines zentralen langgestreckt-zylindrischen Mittelabschnitts 48 eineAn embodiment will be explained with reference to FIGS. 11 to 13, how an electromagnetic positioning device for moving the ram unit 17 into the respective setting positions can be realized. Shown in the perspective view of a housing assembly consisting of two nested U-shaped brackets 40, 42, which offer an opening 44 in their respective connection region through which a Anchor unit 46 is guided. The anchor unit 46 has a central elongate-cylindrical central portion 48 at both ends
Permanentmagnetanordnung 50 auf, welche (beidends) einen scheibenförmigen Permanentmagneten trägt und eine Außenfläche (Aufsatzfläche) 52 anbietet, auf welcher dann die Stößeleinheit 17 (gehalten durch Permanentmagnetwirkung) lösbar aufsitzt. Permanent magnet assembly 50, which (at both ends) carries a disc-shaped permanent magnet and an outer surface (top surface) 52 offers, on which then the plunger unit 17 (held by permanent magnet action) removably seated.
Durch geeignete Ansteuerung einer stationären Spuleneinheit 54 wird die Ankereinheit zwischen jeweiligen axialen Endpositionen bewegt, wobei diese Endpositionen durch einen Anschlag (und permanentmagnetischen Haftzustand eines jeweiligen Permanentmagneten) bestimmt sind. Zum Erreichen einer erfindungsgemäß vorteilhaften Instabilität ist zudem vorgesehen, dass durch geeignete impulsförmige Ansteuerung der Spuleneinheit 54 die Ankereinheit in eine axiale Mittelposition verbracht wird, bei welcher keine der Permanentmagneteinheiten 50 an einem Gehäuseboden bzw. einem magnetisch wirksamen Kern anhaftet und so eine stabile Mittelposition einnimmt. Zusätzlich weiterbildungsgemäß vorteilhaft ist es, diese Mittelstellung der Tristabilität durch geeignete Wechselstromansteuerung der Permanentmagnetmittel zu induzieren. Die Fig. 13 verdeutlicht entsprechende Verläufe des magnetischen Flusses für die tristabile Mittenposition. Verdeutlicht ist, wie (über entsprechende Flussleitelemente und geometrische Gestaltung des Kerns) ein jeweiliger magnetischer Fluss der Permanentmagneten 50 durch den Kern geschlossen wird, so dass, entsprechend den beiden, aufeinander gerichteten Kraftpfeilen 58, ein stabiler Mittenzustand (lediglich bewirkt durch die jeweils eine Anziehungskraft auf den Kernbereich ausübenden Permanentmagneten) entsteht und eine stabile Mittelposition der Ankereinheit bewirkt. Durch impulsförmiges Bestromen der Spuleneinheit 54 kann die Ankereinheit in diese Position verbracht und aus dieser in eine der beiden Endlagen geschaltet werden; ergänzend sorgt die erwähnte Wechselstromansteuerung der Spuleneinheit für eine derartige Mittenposition. By suitable control of a stationary coil unit 54, the armature unit is moved between respective axial end positions, these end positions being determined by a stop (and permanent-magnetic adhesion state of a respective permanent magnet). To achieve an inventively advantageous instability is also provided that by appropriate pulse-shaped control of the coil unit 54, the armature unit is moved to an axial center position in which none of the permanent magnet units 50 adheres to a housing bottom or a magnetically active core and thus occupies a stable center position. In addition, according to the invention, it is advantageous to induce this middle position of the tristability by means of suitable alternating current control of the permanent magnet means. FIG. 13 illustrates corresponding courses of the magnetic flux for the tristable center position. It is clarified how (via corresponding flux guide elements and geometric design of the core) a respective magnetic flux of the permanent magnets 50 is closed by the core, so that, corresponding to the two mutually directed force arrows 58, a stable center state (only effected by the respective attraction on the core region performing permanent magnet) is created and causes a stable center position of the armature unit. By pulse-shaped energizing the coil unit 54, the armature unit can be moved into this position and switched from this to one of the two end positions; In addition, the mentioned AC control of the coil unit provides for such a center position.
Die Fig. 14 verdeutlicht, insoweit die Seitenansichten bzw. abgerollten Ansichten der Hubprofilelemente gemäß Fig. 1 bis 10 ergänzend, eine mögliche Nutengeometrie mit einem Nutenquerschnitt einer ersten Steuernut einer ersten Eindringtiefe 60 (gestrichelte Linie), im Vergleich zu der Nutentiefe bzw. Nutengeometrie einer zweiten Steuernut einer relativ tieferen Nutentiefe. Diese Darstellung ist, wie auch die schematischen Darstellungen der Fig. 1 bis 10, rein schematisch und nicht beschränkend, vielmehr wären die Geometrien, Nutenverläufe und weitere, im Rahmen des fachmännischen Könnens liegende Ausgestaltungen einem jeweiligen Anwendungszweck geeignet anzupassen. FIG. 14 illustrates, to the extent that the side views or unrolled views of the lifting profile elements according to FIGS. 1 to 10 complement one another Groove geometry with a groove cross-section of a first cam groove of a first penetration depth 60 (dashed line), in comparison to the groove depth or groove geometry of a second cam groove of a relatively deeper groove depth. This representation is, as well as the schematic representations of FIGS. 1 to 10, purely schematic and not limiting, but the geometries, Nutenverläufe and other, lying within the skill of the art embodiments of a particular application would suitably adapt.

Claims

Ansprüche claims
Vorrichtung zur Nockenwellenverstellung einer Brennkraftmaschine mit einem auf oder an einer axial verschieblich gelagerten Nockenwelle drehfest vorgesehenen, eine Steuernut anbietenden Hubprofilelement (12) und einer Steuereinheit zum Bewirken einer vorbestimmten Axialverschiebung der Nockenwelle, wobei die Steuereinheit eine bevorzugt radial zur Nockenwelle entlang einer Bewegungsrichtung bewegliche, zum steuerbaren Eingreifen in das Hubprofilelement ausgebildete Stößeleinheit (17) aufweist, Device for adjusting the camshaft of an internal combustion engine with a rotatably provided on or on an axially displaceable camshaft, a cam groove profiling Hubprofilelement (12) and a control unit for effecting a predetermined axial displacement of the camshaft, wherein the control unit a preferably radially to the camshaft along a direction of movement movable, for having controllable engagement in the lifting profile element formed ram unit (17),
und wobei and where
das Hubprofilelement eine erste Steuernut (16) ausbildet, welche zum Zusammenwirken mit der Stößeleinheit in einer ersten Eindringtiefe zum Beschreiben einer ersten Axialbewegung der Nockenwelle ausgebildet ist und the lifting profile element forms a first control groove (16), which is designed to cooperate with the plunger unit in a first penetration depth for describing a first axial movement of the camshaft and
das Hubprofilelement eine zweite Steuernut (18, 22) ausbildet, welche zum Zusammenwirken mit der Stößeleinheit in einer zweiten, von der ersten Eindringtiefe verschiedenen Eindringtiefe zum Beschreiben einer zweiten, von der ersten Axialbewegung verschiedenen zweiten Axialbewegung der Nockenwelle ausgebildet ist, the lifting profile element forms a second control groove (18, 22) which is designed to cooperate with the plunger unit in a second penetration depth different from the first penetration depth for describing a second second axial movement of the camshaft different from the first axial movement,
dadurch gekennzeichnet, dass die Stößeleinheit (17) in der ersten Eindringtiefe und in der zweiten Eindringtiefe einen konstanten Außendurchmesser am Eingriffsende aufweist und entlang der Bewegungsrichtung von einer elektromagnetischen Stellvorrichtung angetrieben wird, die eine erste stabile Stellposition für die erste Eindringtiefe, eine zweite stabile Stellposition für die zweite Eindringtiefe und eine dritte Stellposition für einen Nicht-Eingriffszustand der Stößeleinheit in die erste und zweite Steuernut ansteuerbar anbietet. characterized in that the ram unit (17) has a constant outside diameter at the engagement end in the first penetration depth and the second penetration depth and is driven along the direction of movement by an electromagnetic actuator having a first stable positioning position for the first penetration depth, a second stable positioning position for the second penetration depth and a third control position for a non-engaged state of the plunger unit in the first and second control groove offers controllable.
Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Stößeleinheit (17) als einstückiger Körper mit konstantem Außendurchmesser ausgebildet ist. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die erste und die zweite Steuernut einander benachbart in einem gemeinsamen und/oder einstückig ausgebildeten Hubprofilelement (12) vorgesehen sind. Apparatus according to claim 1, characterized in that the plunger unit (17) is formed as a one-piece body with a constant outer diameter. Apparatus according to claim 1 or 2, characterized in that the first and the second control groove adjacent to each other in a common and / or integrally formed Hubprofilelement (12) are provided.
Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die erste und die zweite Steuernut im Hubprofilelement zumindest bereichsweise ineinander übergehen. Device according to one of claims 1 to 3, characterized in that the first and the second control groove in the Hubprofilelement at least partially merge into one another.
Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Stößeleinheit stiftförmig und zylindrisch ausgebildet ist. Device according to one of claims 1 to 4, characterized in that the plunger unit is pin-shaped and cylindrical.
Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die erste und die zweite Steuernut so ausgebildet sind, dass durch Wirkung der die Stößeleinheit ansteuernden Steuereinheit die Nockenwelle mittels der ersten Axialbewegung sowie der zweiten Axialbewegung aus einer Ausgangsstellung in eine erste axial verschobene Stellung und zurück in die Ausgangsstellung verstellt werden kann. Device according to one of claims 1 to 5, characterized in that the first and the second control groove are formed so that the camshaft by means of the first axial movement and the second axial movement from an initial position to a first axially displaced position by the action of the plunger unit driving control unit and back to the starting position can be adjusted.
Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das Hubprofilelement eine dritte Steuernut benachbart und/oder teilweise überlappend mit der ersten und der zweiten Steuernut aufweist und die dritte Steuernut eine dritte Axialbewegung der Nockenwelle beschreibt, wobei die dritte Steuernut so ausgebildet und/oder eingerichtet ist, dass durch Wirkung der die Stößeleinheit ansteuernden Steuereinheit die Nockenwelle aus der Ausgangsstellung oder der ersten axial verschobenen Stellung in eine zweite axial verschobene Stellung, welche verschieden von der Ausgangsstellung und der ersten axial verschobenen Stellung ist, bewegt werden kann. Apparatus according to claim 6, characterized in that the lifting profile element has a third control groove adjacent and / or partially overlapping with the first and the second control groove and the third control groove describes a third axial movement of the camshaft, wherein the third control groove is formed and / or set up in that the camshaft can be moved from the starting position or the first axially displaced position into a second axially displaced position, which is different from the starting position and the first axially displaced position, by the action of the control unit controlling the ram unit.
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die erste, zweite und dritte Steuernut so ausgebildet ist, dass die Nockenwelle durch Wirkung der die Stößeleinheit einsteuernden Steuereinheit beliebig zwischen drei voneinander verschiedenen axialen Verschiebepositionen verstellt werden kann. 8. The device according to claim 7, characterized in that the first, second and third control groove is formed so that the camshaft can be adjusted as desired between three mutually different axial displacement positions by the action of the plunger unit einsteuernden control unit.
Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die elektromagnetische Stellvorrichtung eine relativ zu einer stationären Spuleneinheit und als Reaktion auf eine Bestromung derselben entlang einer Bewegungslängsachse zwischen mindestens zwei Stellpositionen bewegbare Ankereinheit (46) aufweist, die endseitig Eingriffsmittel zum Zusammenwirken mit der Stößeleinheit aufweist, wobei die mindestens zwei Stellpositionen stromlos stabile Stellpositionen sind. Device according to one of claims 1 to 8, characterized in that the electromagnetic adjusting device has a relative to a stationary coil unit and in response to an energization of the same along a longitudinal axis of movement between at least two actuating positions movable armature unit (46), the end engaging means for cooperating with the Tappet unit, wherein the at least two adjustment positions are normally stable stable positions.
Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die elektromagnetische Stellvorrichtung zum Verbringen der Ankereinheit in eine dritte Stellposition ausgebildet ist, wobei die dritte Stellposition entlang der Richtung der Bewegungslängsachse zwischen der ersten und der zweiten Stellposition liegt. Apparatus according to claim 9, characterized in that the electromagnetic adjusting device for moving the armature unit is formed in a third setting position, wherein the third setting position along the direction of the movement longitudinal axis between the first and the second setting position.
Vorrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die Ankereinheit Permanentmagnetmittel (50) in Form von mindestens einem, bevorzugt zwei Permanentmagneten aufweist, welche zum Zusammenwirken mit einem stationären Kernbereich und zum Bewirken und/oder Halten mindestens einer der stromlos stabilen Stellpositionen ausgebildet sind. Apparatus according to claim 9 or 10, characterized in that the armature unit permanent magnet means (50) in the form of at least one, preferably two permanent magnets, which are designed to cooperate with a stationary core region and for effecting and / or holding at least one of the currentless stable setting positions ,
12. Vorrichtung nach einem der Ansprüche 9 bis 11 , dadurch gekennzeichnet, dass die Stößeleinheit (17) mittels Permanentmagnetwirkung lösbar an der Ankereinheit (46) befestigt ist. 12. Device according to one of claims 9 to 11, characterized in that the plunger unit (17) is releasably secured by means of permanent magnet action on the armature unit (46).
13. Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Stößeleinheit entlang der Bewegungsrichtung unlösbar verbundene Materialien verschiedener festigkeits- und/oder magnetischer Eigenschaften aufweist. 13. Device according to one of claims 1 to 12, characterized in that the plunger unit along the direction of movement having inseparably bonded materials of various strength and / or magnetic properties.
14. Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass die elektromagnetische Stellvorrichtung ein14. Device according to one of claims 1 to 13, characterized in that the electromagnetic adjusting device a
Gehäuse aufweist, welches als Paar von ineinander und/oder gegeneinander verschachtelt vorgesehener, bügeiförmiger Gehäuseelemente (40, 42) ausgebildet ist, durch welche sich axial eine die Stößeleinheit antreibende Ankereinheit (46) erstreckt. Housing, which is designed as a pair of nested and / or against each other provided, bow-shaped housing elements (40, 42) through which axially extends the ram unit driving armature unit (46).
EP10743029A 2009-09-01 2010-07-30 Device for adjusting a camshaft of an internal combustion engine Active EP2473716B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202009011804U DE202009011804U1 (en) 2009-09-01 2009-09-01 Device for adjusting the camshaft of an internal combustion engine
PCT/EP2010/004657 WO2011026545A2 (en) 2009-09-01 2010-07-30 Device for adjusting a camshaft of an internal combustion engine

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EP2473716A2 true EP2473716A2 (en) 2012-07-11
EP2473716B1 EP2473716B1 (en) 2012-11-07

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EP10743029A Active EP2473716B1 (en) 2009-09-01 2010-07-30 Device for adjusting a camshaft of an internal combustion engine

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US (1) US8707917B2 (en)
EP (1) EP2473716B1 (en)
CN (1) CN102597435B (en)
DE (1) DE202009011804U1 (en)
WO (1) WO2011026545A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007037232A1 (en) * 2007-08-07 2009-02-12 Eto Magnetic Gmbh Device for adjusting the camshaft of an internal combustion engine
DE102010053359A1 (en) * 2010-12-03 2012-06-06 Schaeffler Technologies Gmbh & Co. Kg Sliding cam system with sliding grooves and locks
DE102011114300B4 (en) * 2011-09-23 2016-02-25 Audi Ag Valve gear of an internal combustion engine and internal combustion engine
DE102012204621A1 (en) * 2012-03-22 2013-09-26 Schaeffler Technologies AG & Co. KG Cam piece for a variable sliding cam valve drive
DE102012107281B4 (en) 2012-08-08 2014-03-06 Eto Magnetic Gmbh Bistable electromagnetic actuator, armature assembly and camshaft adjuster
DE102012222113A1 (en) * 2012-12-04 2014-06-18 Schaeffler Technologies Gmbh & Co. Kg Valve train of an internal combustion engine
DE102013201827A1 (en) * 2013-02-05 2014-08-07 Schaeffler Technologies Gmbh & Co. Kg Diagnostic procedure of a valve train actuator
CN103306776B (en) * 2013-06-28 2015-09-09 长城汽车股份有限公司 For the variable air valve lift apparatus of motor, motor and vehicle
DE102013220554B4 (en) * 2013-10-11 2015-05-13 Schaeffler Technologies AG & Co. KG Hubvariabler valve drive of an internal combustion engine
DE102014204570B3 (en) * 2014-03-12 2015-07-16 Schaeffler Technologies AG & Co. KG Hubvariabler valve drive of an internal combustion engine
DE102014014600B3 (en) * 2014-10-07 2016-03-03 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Device for a valve drive for switching the stroke of gas exchange valves of an internal combustion engine
US9583249B2 (en) 2014-10-31 2017-02-28 Husco Automotive Holdings Llc Methods and systems for push pin actuator
DE102016220612A1 (en) * 2016-10-20 2018-04-26 Mahle International Gmbh Valve train for an internal combustion engine
DE102019133333A1 (en) * 2019-12-06 2021-06-10 Eto Magnetic Gmbh Electromagnetic actuator with intermediate position

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0677542B2 (en) * 1987-06-30 1994-10-05 松下電器産業株式会社 Electric coffee heater
DE19611641C1 (en) 1996-03-25 1997-06-05 Porsche Ag Valve operating cam drive for combustion engines
DE102005003079B4 (en) * 2005-01-22 2014-12-31 Audi Ag Internal combustion engine with a valve train
DE102007037232A1 (en) 2007-08-07 2009-02-12 Eto Magnetic Gmbh Device for adjusting the camshaft of an internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011026545A2 *

Also Published As

Publication number Publication date
CN102597435B (en) 2014-07-16
DE202009011804U1 (en) 2011-01-13
US8707917B2 (en) 2014-04-29
WO2011026545A2 (en) 2011-03-10
WO2011026545A3 (en) 2011-05-05
EP2473716B1 (en) 2012-11-07
US20120152193A1 (en) 2012-06-21
CN102597435A (en) 2012-07-18

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