WO2010015328A1 - Valve drive device - Google Patents

Valve drive device Download PDF

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Publication number
WO2010015328A1
WO2010015328A1 PCT/EP2009/005306 EP2009005306W WO2010015328A1 WO 2010015328 A1 WO2010015328 A1 WO 2010015328A1 EP 2009005306 W EP2009005306 W EP 2009005306W WO 2010015328 A1 WO2010015328 A1 WO 2010015328A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve drive
sensor
drive device
actuator unit
unit
Prior art date
Application number
PCT/EP2009/005306
Other languages
German (de)
French (fr)
Inventor
Jens Meintschel
Thomas Stolk
Alexander Von Gaisberg-Helfenberg
Original Assignee
Daimler Ag
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 Daimler Ag filed Critical Daimler Ag
Publication of WO2010015328A1 publication Critical patent/WO2010015328A1/en

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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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/34413—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using composite camshafts, e.g. with cams being able to move relative to the camshaft
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • 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
    • 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
    • F01L2820/04—Sensors
    • F01L2820/041—Camshafts position or phase sensors

Definitions

  • the invention relates to a valve drive device according to the preamble of claim 1.
  • a valve drive device with an actuator unit which causes an displacement of a cam piece in an axial direction of a camshaft during an operating procedure.
  • a sensor device detects a parameter of a rotational movement of the camshaft.
  • the invention is in particular the object of achieving a simple construction. It is achieved according to the invention by the features of claim 1. Further embodiments emerge from the subclaims.
  • the invention is based on a valve drive device with at least one sensor device for detecting at least one parameter and at least one actuator unit, which effects a displacement of at least one component in an axial direction during at least one operating operation.
  • an “actuator unit” is to be understood as meaning, in particular, a unit which is provided to prevent a movement of at least one component on the basis of at least one signal. Start. By “provided” is meant in particular specially designed and / or equipped and / or programmed
  • An “axial direction” is to be understood in particular as meaning a direction parallel to an axis of rotation and / or a longitudinal axis of a shaft, which in particular is a camshaft is formed and / or in particular drives at least one cam and / or on which at least one cam piece is mounted, extends.
  • a “displacement” of the component is to be understood as meaning, in particular, a movement of the component relative to the actuator unit.
  • “Functional means” shall be understood to mean, in particular, a means which can perform a specific function and / or for different units, of which the agent in particular may be a part, perform various and / or same functions, and / or a housing part and / or a fastening means and / or a holder and / or an electrical connection and / or a socket and / or a power connector and / or an electrical Plug connection and / or an interface to be understood.
  • the fact that the actuator unit and the sensor device have a "common" functional means should be understood in particular to mean that the functional means is a part of the actuator unit and a part of the sensor device.
  • the functional means is designed as a fastening means and / or electrical connection means.
  • An "electrical connection means" is to be understood in particular as meaning an electrical contact means and / or a cable and / or a connection and / or a socket and / or a current connector and / or an electrical plug connection and / or a plug and / or an interface. As a result, a simple assembly can be achieved.
  • the sensor device has at least one sensor unit, which is mounted at least partially movable in the axial direction.
  • the sensor unit is mounted at least partially "movable”
  • the sensor unit is provided relative to the actuator unit. is movably mounted. This allows a structurally simple design, in particular the sensor unit and its attachment can be achieved.
  • a fixing means for fixing the sensor unit can be saved in a fixed position relative to the actuator unit.
  • the sensor unit has at least two sensor means, which are arranged successively in at least one operating state with respect to a circumferential direction of a shaft and are movable relative to one another in at least one direction.
  • a cost-effective design of the sensor unit can be achieved with a simple control and in particular displacement of components with cams and in particular cam pieces.
  • a simple arrangement of a toothed ring can be achieved, which is adjacent to a sensing element, which may be formed in particular by a Hall sensor.
  • the actuator unit has at least two actuators.
  • An "actuator” is to be understood as meaning, in particular, a unit which is intended to cause a movement of at least one component on the basis of at least one signal, whereby the actuator unit “comprises at least two actuators” is to be understood in particular as meaning that the two actuators at least one operating operation, a structural unit, which may be formed in particular by arranged on a shaft cam pieces and / or a cam piece, operate and / or at least partially surrounded by a common housing and / or that the two actuators are attached to a common holder.
  • an efficient control of movements in particular of a camshaft, can be achieved.
  • the movements can be controlled with a small number of actuators.
  • at least part of the sensor device is arranged between the actuators.
  • a part "between" the actuators is arranged should be understood in particular that there is at least one straight line, which one of the actuators at least in a first point, the other actor at least in a second point and the part in we- at least one point, which is arranged on the straight line between the first and the second point, intersects.
  • a compact and inexpensive construction and in particular a simple assembly can be achieved.
  • an efficient use of space can be achieved.
  • an unused space can be used to install a part of the sensor device.
  • At least part of the sensor device is integrated in the actuator unit. It is to be understood in particular that a part is “integrated” in the actuator unit, that the actuator unit has at least one enclosure or housing within which the sensor device is at least partly arranged be saved.
  • the actuator unit act on at least one operating operation a control link in a radial direction. In this way, structurally simple adjustment process, in particular a valve lift can be performed.
  • the parameter is a rotation angle.
  • a rotational state of a shaft can be detected.
  • a phase relationship between a rotation of a camshaft and a rotation of a crankshaft can be determined.
  • the functional agent has at least one ground cable.
  • a cable with a potential which forms a reference potential for voltages of the actuator unit and / or the sensor device, and / or a cable with ground potential is to be understood by a "ground cable.”
  • the sensor device has at least one Hall sensor. This can be done a precise and cost-effective detection of the parameter.
  • the sensor device is formed at least partially in one piece with at least one control link and / or a cam.
  • integral is intended in particular to be produced from a casting or from an injection molding and / or understood to be one-piece and / or formed by a component, in this way simple assembly can be achieved.
  • FIG. 1 is a plan view of a valve drive device according to the invention
  • valve drive device with an actuator unit and a sensor unit
  • FIG. 5 shows a side view of the actuator unit and the sensor unit, wherein the sensor unit is in an extreme position
  • FIG. 6 shows an exploded view of the actuator unit.
  • FIG. 1 shows a valve drive device according to the invention with a shaft 21 and a sensor device 10 for detecting a parameter 26, which is a rotation angle of the shaft 21.
  • cam-forming components 12, 30 are arranged, which surround the shaft 21 and each have at least one cam 29, 31.
  • the components 12, 30 are in a circumferential direction 32 of Shaft 21 is fixedly connected to the shaft 21 and are rotated in an operation of the shaft 21.
  • the cams 31 actuate valve means 33, which perform opening and closing operations, respectively.
  • the valve drive device further has an actuator unit 11 which, during an operation, causes a displacement of at least the components 12, 30 in an axial direction 13 of the shaft 21, which is a longitudinal direction of the shaft 21.
  • the displacement of the components 12, 30 causes a change in a stroke of the valve means 33rd
  • the sensor device 10 and the actuator unit 11 have a common functional means 14, which is designed as a stator housing and serves as a fastening means.
  • a part 24 of the sensor device 10 which is designed as a Hall sensor 28, and the actuator unit 11 attached to each other ( Figures 2 and 3).
  • the part 24 is integrated into the actuator unit 11 and arranged to a large extent within the functional means 14.
  • the actuator unit 11 and the part 24 of the sensor device 10 are attached by means of the functional means 14 to a fastening component, not shown, which may be formed as a cylinder head, bearing bracket or cylinder head cover.
  • the actuator unit 11 and the sensor device 10 have a common functional means 15 which is an electrical connection means which is designed as an interface (FIG. 1).
  • a plug is plugged into the functional means 15, which has electrical cable connections for the actuator unit 11 and the sensor device 10.
  • the functional means 15 has a schematically illustrated ground cable 27, which provides a grounding potential for the part 24 of the sensor device 10 and the actuator unit 11.
  • the actuator unit 11 has two actuators 22, 23 (FIGS. 2, 3 and 6), which are arranged to a large extent within the functional means 14.
  • the part 24 of the sensor device is arranged between the actuators 22, 23.
  • the actuators 22, 23 each have a switching pin 34, 35.
  • To an axial displacement of Components 12, 30 causes the actuator 22, 23 respectively a movement of the switching pins 34, 35 in a radial direction 41 of the shaft 21 to the shaft 21 to.
  • the switching pins 34, 35 act on control slots 25, 36 of the components 12, 30.
  • a mechanical interaction of the control slots 25, 36 with the switching pins 34, 35 cause the axial displacements of the components 12, 30 relative to the actuator unit 11 and the shaft 21st
  • Figure 4 shows the integrally formed member 12, which has the cams 29, a part 37 of the control link 25 and a part 38 of the control link 36.
  • the parts 37, 38 are respectively halves of the control slots 25, 36. Together with the component 30, the component 12 forms the control slots 25, 36.
  • a sensor means 18 of the sensor device 10 is arranged, which serves as a half of a toothed ring is trained.
  • the component 30 has a sensor means 19, which is mirror-inverted in comparison to the sensor means 18.
  • Both components 12, 30 are movably mounted in the axial direction 13 on the shaft.
  • the sensor means 18, 19 are thus mounted movable relative to each other. In an operating state (FIGS. 2 and 3), the two sensor means 18, 19 adjoin one another and are consequently arranged consecutively in the circumferential direction 32, thereby forming a toothed ring.
  • the Hall sensor 28 which is designed as a differential Hall sensor, registered during a rotation of the shaft 21, the characteristic 26 by means of the sensor unit 17.
  • the Hall sensor 28 can Mass center 39 of the sensor unit 17 different positions relative to the actuator unit 11 occupy ( Figure 5).
  • Figure 5 In an extreme position of the sensor unit 17 shown in FIG. 5, the latter has a maximum distance from the valve means 33 shown in FIG. 1.
  • the sensor unit 17 By displacing the components 12, 30, the sensor unit 17 is displaced in the direction of the valve means 33, so that the sensor unit 17 has a second Extremalposition assumes, in which the center of mass 39 is positioned at a point 40. In the second extremal position, the sensor unit 17 occupies a minimum distance to the valve means 33.
  • the Hall sensor 28 Upon rotation of the shaft 21, the Hall sensor 28 by means of the sensor unit 17 formed of metal, the characteristic 26 fixed, although the sensor unit 17 moves and in particular in one of the Extemalpositio- nen can be arranged.
  • the parameter 26 is thus always available for a regulation of a camshaft adjuster.
  • the sensor unit 17 is formed in one piece.
  • the sensor unit 17 may, for example, be fastened to one of the components 12, 30 and surround a part of the other component 12, 30, the part of the sensor unit 17 encompassing the other component 12, 30 being further away from the shaft 21 in the radial direction 41 as the other component 12, 30.
  • the sensor unit 17 is integrally formed and rotatably and in the axial direction 13 is movably mounted on the shaft 21. In this case, it is conceivable, for example, for the sensor unit 17 to be guided in the axial direction 13, in particular relative to the components 12, 30, by means of a guide means, which may be fastened in particular to the actuator unit 11.
  • the invention is particularly applicable also in the case in which a component 12, 30 is associated with a cylinder and two actuators per component 12, 30 are used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention relates to a valve drive device comprising at least one sensor device (10) for measuring at least one characteristic (26) and at least one actuator unit (11), which effects a displacement of at least one component (12, 30) in an axial direction (13) in at least one operating process. It is proposed that the sensor device (10) and the actuator unit (11) comprise at least one common functional means (14, 15).

Description

Ventiltriebvorrichtung Valve drive device
Die Erfindung betrifft eine Ventiltriebvorrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a valve drive device according to the preamble of claim 1.
Es ist eine Ventiltriebvorrichtung mit einer Aktoreinheit bekannt, welche bei einem Betriebsvorgang eine Verlagerung eines Nockenstücks in eine axiale Richtung einer Nockenwelle bewirkt. Zu einer Bestimmung einer Phasenbeziehung zwischen der Nockenwelle und einer Kurbelwelle erfasst eine Sensorvorrichtung eine Kenngröße einer Drehbewegung der Nockenwelle.A valve drive device with an actuator unit is known, which causes an displacement of a cam piece in an axial direction of a camshaft during an operating procedure. For a determination of a phase relationship between the camshaft and a crankshaft, a sensor device detects a parameter of a rotational movement of the camshaft.
Der Erfindung liegt insbesondere die Aufgabe zugrunde, eine einfache Bauweise zu erreichen. Sie wird gemäß der Erfindung durch die Merkmale des Anspruchs 1 gelöst. Weitere Ausgestaltungen ergeben sich aus den Unteransprüchen.The invention is in particular the object of achieving a simple construction. It is achieved according to the invention by the features of claim 1. Further embodiments emerge from the subclaims.
Die Erfindung geht aus von einer Ventiltriebvorrichtung mit wenigstens einer Sensorvorrichtung zur Erfassung wenigstens einer Kenngröße und zumindest einer Aktoreinheit, welche bei zumindest einem Betriebsvorgang eine Verlagerung wenigstens eines Bauteils in eine axiale Richtung bewirkt.The invention is based on a valve drive device with at least one sensor device for detecting at least one parameter and at least one actuator unit, which effects a displacement of at least one component in an axial direction during at least one operating operation.
Es wird vorgeschlagen, dass die Sensorvorrichtung und die Aktoreinheit wenigstens ein gemeinsames Funktionsmittel aufweisen. Unter einer „Aktoreinheit" soll insbesondere eine Einheit verstanden werden, welche dazu vorgesehen ist, aufgrund zumindest eines Signals eine Bewegung wenigstens eines Bauteils zu ver- anlassen. Unter „vorgesehen" soll insbesondere speziell ausgelegt und/oder ausgestattet und/oder programmiert verstanden werden. Unter einer „axialen Richtung" soll im Besonderen eine Richtung verstanden werden, welche parallel zu einer Drehachse und/oder einer Längsachse einer Welle, welche insbesondere als Nockenwelle ausgebildet ist und/oder insbesondere wenigstens einen Nocken antreibt und/oder auf welcher wenigstens ein Nockenstück gelagert ist, verläuft. Unter einer „Verlagerung" des Bauteils soll insbesondere eine Bewegung des Bauteils relativ zu der Aktoreinheit verstanden werden. Unter einem „Funktionsmittel" soll insbesondere ein Mittel verstanden werden, welches eine bestimmte Funktion ausüben kann und/oder für verschiedene Einheiten, von welchen das Mittel insbesondere ein Teil sein kann, verschiedene und/oder gleiche Funktionen ausüben kann, und/oder ein Gehäuseteil und/oder ein Befestigungsmittel und/oder eine Halterung und/oder ein elektrischer Anschluss und/oder eine Buchse und/oder ein Stromverbinder und/oder eine elektrische Steckverbindung und/oder eine Schnittstelle verstanden werden. Darunter, dass die Aktoreinheit und die Sensorvorrich- tung ein „gemeinsames" Funktionsmittel aufweisen, soll insbesondere verstanden werden, dass das Funktionsmittel ein Teil der Aktoreinheit und ein Teil der Sensorvorrichtung ist. Mit einer erfindungsgemäßen Ausgestaltung kann eine einfache Bauweise erreicht werden.It is proposed that the sensor device and the actuator unit have at least one common functional means. An "actuator unit" is to be understood as meaning, in particular, a unit which is provided to prevent a movement of at least one component on the basis of at least one signal. Start. By "provided" is meant in particular specially designed and / or equipped and / or programmed An "axial direction" is to be understood in particular as meaning a direction parallel to an axis of rotation and / or a longitudinal axis of a shaft, which in particular is a camshaft is formed and / or in particular drives at least one cam and / or on which at least one cam piece is mounted, extends. A "displacement" of the component is to be understood as meaning, in particular, a movement of the component relative to the actuator unit. "Functional means" shall be understood to mean, in particular, a means which can perform a specific function and / or for different units, of which the agent in particular may be a part, perform various and / or same functions, and / or a housing part and / or a fastening means and / or a holder and / or an electrical connection and / or a socket and / or a power connector and / or an electrical Plug connection and / or an interface to be understood. The fact that the actuator unit and the sensor device have a "common" functional means should be understood in particular to mean that the functional means is a part of the actuator unit and a part of the sensor device.
Ferner wird vorgeschlagen, dass das Funktionsmittel als Befestigungsmittel und/oder elektrisches Verbindungsmittel ausgebildet ist. Unter einem „elektrischen Verbindungsmittel" soll insbesondere ein elektrisches Kontaktmittel und/oder ein Kabel und/oder ein Anschluss und/oder eine Buchse und/oder ein Stromverbinder und/oder eine elektrische Steckverbindung und/oder ein Stecker und/oder eine Schnittstelle verstanden werden. Hierdurch kann eine einfache Montage erreicht werden.It is also proposed that the functional means is designed as a fastening means and / or electrical connection means. An "electrical connection means" is to be understood in particular as meaning an electrical contact means and / or a cable and / or a connection and / or a socket and / or a current connector and / or an electrical plug connection and / or a plug and / or an interface. As a result, a simple assembly can be achieved.
Vorzugsweise weist die Sensorvorrichtung wenigstens eine Sensoreinheit auf, welche zumindest teilweise beweglich in die axiale Richtung gelagert ist. Darunter, dass die Sensoreinheit zumindest teilweise „beweglich" gelagert ist, soll insbesondere verstanden werden, dass die Sensoreinheit relativ zu der Aktoreinheit be- wegbar gelagert ist. Damit kann eine konstruktiv einfache Ausbildung insbesondere der Sensoreinheit und ihrer Befestigung erreicht werden. Insbesondere kann ein Fixierungsmittel zur Fixierung der Sensoreinheit in einer festen Position relativ zu der Aktoreinheit eingespart werden.Preferably, the sensor device has at least one sensor unit, which is mounted at least partially movable in the axial direction. By the fact that the sensor unit is mounted at least partially "movable", it should be understood in particular that the sensor unit is provided relative to the actuator unit. is movably mounted. This allows a structurally simple design, in particular the sensor unit and its attachment can be achieved. In particular, a fixing means for fixing the sensor unit can be saved in a fixed position relative to the actuator unit.
Mit Vorteil weist die Sensoreinheit zumindest zwei Sensormittel auf, welche in wenigstens einem Betriebszustand bezügliche einer Umfangsrichtung einer Welle aufeinander folgend angeordnet sind und in wenigstens eine Richtung relativ zueinander bewegbar sind. Hierdurch kann bei einer einfachen Steuerung und insbesondere Verlagerung von Bauteilen mit Nocken und insbesondere Nockenstücken ein kostengünstiger Aufbau der Sensoreinheit erreicht werden. Insbesondere kann eine einfache Anordnung eines Zahnrings erreicht werden, welche benachbart zu einem sensierenden Element, welches insbesondere durch einen Hall- Sensor gebildet sein kann, ist.Advantageously, the sensor unit has at least two sensor means, which are arranged successively in at least one operating state with respect to a circumferential direction of a shaft and are movable relative to one another in at least one direction. As a result, a cost-effective design of the sensor unit can be achieved with a simple control and in particular displacement of components with cams and in particular cam pieces. In particular, a simple arrangement of a toothed ring can be achieved, which is adjacent to a sensing element, which may be formed in particular by a Hall sensor.
In einer bevorzugten Ausführungsform der Erfindung weist die Aktoreinheit zumindest zwei Aktoren auf. Unter einem „Aktor" soll insbesondere eine Einheit verstanden werden, welche dazu vorgesehen ist, aufgrund zumindest eines Signals eine Bewegung wenigstens eines Bauteils zu veranlassen. Darunter, dass die Aktoreinheit „zumindest zwei Aktoren aufweist", soll insbesondere verstanden werden, dass die beiden Aktoren bei wenigstens einem Betriebsvorgang eine Baueinheit, welche insbesondere von auf einer Welle angeordneten Nockenstücken und/oder einem Nockenstück gebildet sein kann, betätigen und/oder von einem gemeinsamen Gehäuse zumindest teilweise umgeben sind und/oder dass die beiden Aktoren an einer gemeinsamen Halterung befestigt sind. Hierdurch kann eine effiziente Steuerung von Bewegungen insbesondere einer Nockenwelle erreicht werden. Insbesondere können die Bewegungen mit einer geringen Anzahl von Aktoren gesteuert werden. Vorzugsweise ist zumindest ein Teil der Sensorvorrichtung zwischen den Aktoren angeordnet. Darunter, dass ein Teil „zwischen" den Aktoren angeordnet ist, soll insbesondere verstanden werden, dass es wenigstens eine Gerade gibt, welche einen der Aktoren wenigstens in einem ersten Punkt, den anderen Aktor zumindest in einem zweiten Punkt und das Teil in we- nigstens einem Punkt, welcher auf der Gerade zwischen dem ersten und dem zweiten Punkt angeordnet ist, schneidet. Hierdurch kann eine kompakte und kostengünstige Bauweise und insbesondere eine einfache Montage erreicht werden. Insbesondere kann eine effiziente Nutzung von Bauraum erreicht werden. Im Besonderen kann ein ungenutzter Bauraum zu einem Einbau eines Teils der Sensorvorrichtung verwendet werden.In a preferred embodiment of the invention, the actuator unit has at least two actuators. An "actuator" is to be understood as meaning, in particular, a unit which is intended to cause a movement of at least one component on the basis of at least one signal, whereby the actuator unit "comprises at least two actuators" is to be understood in particular as meaning that the two actuators at least one operating operation, a structural unit, which may be formed in particular by arranged on a shaft cam pieces and / or a cam piece, operate and / or at least partially surrounded by a common housing and / or that the two actuators are attached to a common holder. As a result, an efficient control of movements, in particular of a camshaft, can be achieved. In particular, the movements can be controlled with a small number of actuators. Preferably, at least part of the sensor device is arranged between the actuators. Under the fact that a part "between" the actuators is arranged, should be understood in particular that there is at least one straight line, which one of the actuators at least in a first point, the other actor at least in a second point and the part in we- at least one point, which is arranged on the straight line between the first and the second point, intersects. In this way, a compact and inexpensive construction and in particular a simple assembly can be achieved. In particular, an efficient use of space can be achieved. In particular, an unused space can be used to install a part of the sensor device.
Mit Vorteil ist zumindest ein Teil der Sensorvorrichtung in die Aktoreinheit integriert. Darunter, dass ein Teil in die Aktoreinheit „integriert" ist, soll insbesondere verstanden werden, dass die Aktoreinheit wenigstens eine Umhausung bzw. ein Gehäuse aufweist, innerhalb welchem die Sensorvorrichtung zumindest teilweise angeordnet ist. Hierdurch können Bauteile und insbesondere ein Gehäuse des Teils der Sensorvorrichtung eingespart werden.Advantageously, at least part of the sensor device is integrated in the actuator unit. It is to be understood in particular that a part is "integrated" in the actuator unit, that the actuator unit has at least one enclosure or housing within which the sensor device is at least partly arranged be saved.
Außerdem wird vorgeschlagen, dass die Aktoreinheit bei wenigstens einem Betriebsvorgang eine Steuerkulisse in einer radialen Richtung beaufschlagt. Auf diese Weise kann konstruktiv einfach ein Einstellvorgang insbesondere eines Ventilhubs durchgeführt werden.In addition, it is proposed that the actuator unit act on at least one operating operation a control link in a radial direction. In this way, structurally simple adjustment process, in particular a valve lift can be performed.
In einer bevorzugten Ausführungsform der Erfindung ist die Kenngröße ein Drehwinkel. Hierdurch kann ein Drehzustand einer Welle erfasst werden. Insbesondere kann eine Phasenbeziehung zwischen einer Drehung einer Nockenwelle und einer Drehung einer Kurbelwelle ermittelt werden.In a preferred embodiment of the invention, the parameter is a rotation angle. As a result, a rotational state of a shaft can be detected. In particular, a phase relationship between a rotation of a camshaft and a rotation of a crankshaft can be determined.
Weiterhin wird vorgeschlagen, dass das Funktionsmittel wenigstens ein Masse- Kabel aufweist. Unter einem „Masse-Kabel" soll insbesondere ein Kabel mit einem Potential, welches für Spannungen der Aktoreinheit und/oder der Sensorvorrichtung ein Bezugspotential bildet, und/oder ein Kabel mit Erdpotential verstanden werden. Auf diese Weise kann eine einfache Verkabelung erreicht werden. Vorzugsweise weist die Sensorvorrichtung wenigstens einen Hall-Sensor auf. Damit kann ein präzises und zugleich kostengünstiges Erfassen der Kenngröße erfolgen.Furthermore, it is proposed that the functional agent has at least one ground cable. In particular, a cable with a potential, which forms a reference potential for voltages of the actuator unit and / or the sensor device, and / or a cable with ground potential is to be understood by a "ground cable." In this way, a simple wiring can be achieved. Preferably, the sensor device has at least one Hall sensor. This can be done a precise and cost-effective detection of the parameter.
Mit Vorteil ist die Sensorvorrichtung zumindest teilweise einstückig mit wenigstens einer Steuerkulisse und/oder einem Nocken ausgebildet. Unter „einstückig" soll insbesondere aus einem Guss oder aus einer Spritzung hergestellt und/oder einteilig und/oder durch ein Bauteil gebildet verstanden werden. Auf diese Weise kann eine einfache Montage erreicht werden.Advantageously, the sensor device is formed at least partially in one piece with at least one control link and / or a cam. The term "integral" is intended in particular to be produced from a casting or from an injection molding and / or understood to be one-piece and / or formed by a component, in this way simple assembly can be achieved.
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Die Zeichnung, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawing. In the drawing, an embodiment of the invention is shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.
Dabei zeigen:Showing:
Fig. 1 eine Draufsicht auf eine erfindungsgemäße Ventiltriebvorrichtung,1 is a plan view of a valve drive device according to the invention,
Fig. 2 eine Seitenansicht der Ventiltriebvorrichtung,2 is a side view of the valve drive device,
Fig. 3 eine Teilansicht der Ventiltriebvorrichtung mit einer Aktoreinheit und einer Sensoreinheit,3 shows a partial view of the valve drive device with an actuator unit and a sensor unit,
Fig. 4 eine Draufsicht auf ein Bauteil der Ventiltriebvorrichtung,4 shows a plan view of a component of the valve drive device,
Fig. 5 eine Seitenansicht auf die Aktoreinheit und die Sensoreinheit, wobei sich die Sensoreinheit in einer Extremalposition befindet, und Fig. 6 eine Explosionsdarstellung der Aktoreinheit.5 shows a side view of the actuator unit and the sensor unit, wherein the sensor unit is in an extreme position, and FIG. 6 shows an exploded view of the actuator unit.
Figur 1 zeigt eine erfindungsgemäße Ventiltriebvorrichtung mit einer Welle 21 und einer Sensorvorrichtung 10 zur Erfassung einer Kenngröße 26, welche ein Drehwinkel der Welle 21 ist. Auf der Welle 21 sind Nockenstücke bildende Bauteile 12, 30 angeordnet, welche die Welle 21 umgreifen und jeweils zumindest einen Nocken 29, 31 aufweisen. Die Bauteile 12, 30 sind in einer Umfangsrichtung 32 der Welle 21 fest mit der Welle 21 verbunden und werden bei einem Betriebsvorgang von der Welle 21 gedreht. Bei dem Betriebsvorgang betätigen die Nocken 31 Ventilmittel 33, welche aufgrund dessen Öffnungs- bzw. Schließvorgänge durchführen. Die Ventiltriebvorrichtung weist ferner eine Aktoreinheit 11 auf, welche bei einem Betriebsvorgang eine Verlagerung wenigstens der Bauteile 12, 30 in eine a- xiale Richtung 13 der Welle 21 , welches eine Längsrichtung der Welle 21 ist, bewirkt. Die Verlagerung der Bauteile 12, 30 bewirkt eine Änderung eines Hubs der Ventilmittel 33.FIG. 1 shows a valve drive device according to the invention with a shaft 21 and a sensor device 10 for detecting a parameter 26, which is a rotation angle of the shaft 21. On the shaft 21, cam-forming components 12, 30 are arranged, which surround the shaft 21 and each have at least one cam 29, 31. The components 12, 30 are in a circumferential direction 32 of Shaft 21 is fixedly connected to the shaft 21 and are rotated in an operation of the shaft 21. In the operation, the cams 31 actuate valve means 33, which perform opening and closing operations, respectively. The valve drive device further has an actuator unit 11 which, during an operation, causes a displacement of at least the components 12, 30 in an axial direction 13 of the shaft 21, which is a longitudinal direction of the shaft 21. The displacement of the components 12, 30 causes a change in a stroke of the valve means 33rd
Die Sensorvorrichtung 10 und die Aktoreinheit 11 weisen ein gemeinsames Funktionsmittel 14 auf, welches als Stator-Gehäuse ausgebildet ist und als Befestigungsmittel dient. Mittels des Funktionsmittels 14 sind ein Teil 24 der Sensorvorrichtung 10, welches als Hall-Sensor 28 ausgebildet ist, und die Aktoreinheit 11 aneinander befestigt (Figuren 2 und 3). Das Teil 24 ist in die Aktoreinheit 11 integriert und zu einem Großteil innerhalb des Funktionsmittels 14 angeordnet. Die Aktoreinheit 11 und der Teil 24 der Sensorvorrichtung 10 sind mittels des Funktionsmittels 14 an einem nicht näher dargestellten Befestigungsbauteil, welches als Zylinderkopf, Lagerbrücke oder Zylinderkopfhaube ausgebildet sein kann, befestigt.The sensor device 10 and the actuator unit 11 have a common functional means 14, which is designed as a stator housing and serves as a fastening means. By means of the functional means 14 are a part 24 of the sensor device 10, which is designed as a Hall sensor 28, and the actuator unit 11 attached to each other (Figures 2 and 3). The part 24 is integrated into the actuator unit 11 and arranged to a large extent within the functional means 14. The actuator unit 11 and the part 24 of the sensor device 10 are attached by means of the functional means 14 to a fastening component, not shown, which may be formed as a cylinder head, bearing bracket or cylinder head cover.
Weiterhin weisen die Aktoreinheit 11 und die Sensorvorrichtung 10 ein gemeinsames Funktionsmittel 15 auf, welches ein elektrisches Verbindungsmittel ist, das als Schnittstelle ausgebildet ist (Figur 1 ). In einem vollständig montierten Zustand ist ein Stecker in das Funktionsmittel 15 eingesteckt, welcher elektrische Kabelverbindungen für die Aktoreinheit 11 und die Sensorvorrichtung 10 aufweist. Das Funktionsmittel 15 weist ein schematisch dargestelltes Masse-Kabel 27 auf, welches ein Erdungspotential für das Teil 24 der Sensorvorrichtung 10 und die Aktoreinheit 11 bereitstellt.Furthermore, the actuator unit 11 and the sensor device 10 have a common functional means 15 which is an electrical connection means which is designed as an interface (FIG. 1). In a fully assembled state, a plug is plugged into the functional means 15, which has electrical cable connections for the actuator unit 11 and the sensor device 10. The functional means 15 has a schematically illustrated ground cable 27, which provides a grounding potential for the part 24 of the sensor device 10 and the actuator unit 11.
Die Aktoreinheit 11 weist zwei Aktoren 22, 23 auf (Figuren 2, 3 und 6), welche zu einem Großteil innerhalb des Funktionsmittels 14 angeordnet sind. Das Teil 24 der Sensorvorrichtung ist zwischen den Aktoren 22, 23 angeordnet. Die Aktoren 22, 23 weisen jeweils einen Schaltpin 34, 35 auf. Zu einer axialen Verlagerung der Bauteile 12, 30 veranlasst der Aktor 22, 23 jeweils eine Bewegung der Schaltpins 34, 35 in eine radiale Richtung 41 der Welle 21 auf die Welle 21 zu. Bei den Bewegungen beaufschlagen die Schaltpins 34, 35 Steuerkulissen 25, 36 der Bauteile 12, 30. Ein mechanisches Wechselwirken der Steuerkulissen 25, 36 mit den Schaltpins 34, 35 bewirken die axialen Verlagerungen der Bauteile 12, 30 relativ zu der Aktoreinheit 11 und der Welle 21.The actuator unit 11 has two actuators 22, 23 (FIGS. 2, 3 and 6), which are arranged to a large extent within the functional means 14. The part 24 of the sensor device is arranged between the actuators 22, 23. The actuators 22, 23 each have a switching pin 34, 35. To an axial displacement of Components 12, 30 causes the actuator 22, 23 respectively a movement of the switching pins 34, 35 in a radial direction 41 of the shaft 21 to the shaft 21 to. During the movements, the switching pins 34, 35 act on control slots 25, 36 of the components 12, 30. A mechanical interaction of the control slots 25, 36 with the switching pins 34, 35 cause the axial displacements of the components 12, 30 relative to the actuator unit 11 and the shaft 21st
Figur 4 zeigt das einstückig ausgebildete Bauteil 12, welches die Nocken 29, einen Teil 37 der Steuerkulisse 25 und einen Teil 38 der Steuerkulisse 36 aufweist. Die Teile 37, 38 sind jeweils Hälften der Steuerkulissen 25, 36. Zusammen mit dem Bauteil 30 bildet das Bauteil 12 die Steuerkulissen 25, 36. Zwischen den Teilen 37, 38 ist ein Sensormittel 18 der Sensorvorrichtung 10 angeordnet, welches als eine Hälfte eines Zahnrings ausgebildet ist. Das Bauteil 30 weist ein Sensormittel 19 auf, welches in einem Vergleich zu dem Sensormittel 18 spiegelverkehrt ausgebildet ist. Beide Bauteile 12, 30 sind beweglich in die axiale Richtung 13 auf der Welle gelagert. Die Sensormittel 18, 19 sind somit relativ zueinander beweglich gelagert. In einem Betriebszustand (Figuren 2 und 3) schließen die beiden Sensormittel 18, 19 aneinender an und sind demzufolge in der Umfangsrichtung 32 aufeinander folgend angeordnet, wodurch sie einen Zahnring bilden.Figure 4 shows the integrally formed member 12, which has the cams 29, a part 37 of the control link 25 and a part 38 of the control link 36. The parts 37, 38 are respectively halves of the control slots 25, 36. Together with the component 30, the component 12 forms the control slots 25, 36. Between the parts 37, 38, a sensor means 18 of the sensor device 10 is arranged, which serves as a half of a toothed ring is trained. The component 30 has a sensor means 19, which is mirror-inverted in comparison to the sensor means 18. Both components 12, 30 are movably mounted in the axial direction 13 on the shaft. The sensor means 18, 19 are thus mounted movable relative to each other. In an operating state (FIGS. 2 and 3), the two sensor means 18, 19 adjoin one another and are consequently arranged consecutively in the circumferential direction 32, thereby forming a toothed ring.
Zusammen bilden die Sensormittel 18, 19 eine Sensoreinheit 17. Der Hall-Sensor 28, welcher als Differenzial-Hall-Sensor ausgebildet ist, registriert bei einer Drehung der Welle 21 die Kenngröße 26 mittels der Sensoreinheit 17. Während einer Drehung der Welle 21 kann ein Massenmittelpunkt 39 der Sensoreinheit 17 verschiedene Positionen relativ zu der Aktoreinheit 11 einnehmen (Figur 5). In einer in Figur 5 dargestellten Extremalposition der Sensoreinheit 17 besitzt diese einen maximalen Abstand von den in Figur 1 dargestellten Ventilmitteln 33. Durch eine Verlagerung der Bauteile 12, 30 wird die Sensoreinheit 17 in Richtung der Ventilmittel 33 verlagert, so dass die Sensoreinheit 17 eine zweite Extremalposition einnimmt, bei der der Massenmittelpunkt 39 an einem Punkt 40 positioniert ist. In der zweiten Extremalposition nimmt die Sensoreinheit 17 einen minimalen Abstand zu den Ventilmitteln 33 ein. Bei einer Drehung der Welle 21 stellt der Hall-Sensor 28 mittels der aus Metall gebildeten Sensoreinheit 17 die Kenngröße 26 fest, obwohl sich die Sensoreinheit 17 bewegt und insbesondere in einer der Extemalpositio- nen angeordnet sein kann. Die Kenngröße 26 steht somit jederzeit für eine Regelung eines Nockenwellenverstellers zur Verfügung.Together, the sensor means 18, 19 form a sensor unit 17. The Hall sensor 28, which is designed as a differential Hall sensor, registered during a rotation of the shaft 21, the characteristic 26 by means of the sensor unit 17. During rotation of the shaft 21 can Mass center 39 of the sensor unit 17 different positions relative to the actuator unit 11 occupy (Figure 5). In an extreme position of the sensor unit 17 shown in FIG. 5, the latter has a maximum distance from the valve means 33 shown in FIG. 1. By displacing the components 12, 30, the sensor unit 17 is displaced in the direction of the valve means 33, so that the sensor unit 17 has a second Extremalposition assumes, in which the center of mass 39 is positioned at a point 40. In the second extremal position, the sensor unit 17 occupies a minimum distance to the valve means 33. Upon rotation of the shaft 21, the Hall sensor 28 by means of the sensor unit 17 formed of metal, the characteristic 26 fixed, although the sensor unit 17 moves and in particular in one of the Extemalpositio- nen can be arranged. The parameter 26 is thus always available for a regulation of a camshaft adjuster.
Prinzipiell ist auch denkbar, dass die Sensoreinheit 17 einstückig ausgebildet ist. Die Sensoreinheit 17 kann beispielsweise an einem der Bauteile 12, 30 befestigt sein und einen Teil des anderen Bauteils 12, 30 umgreifen, wobei der das andere Bauteil 12, 30 umgreifende Teil der Sensoreinheit 17 in der radialen Richtung 41 weiter von der Welle 21 entfernt ist als das andere Bauteil 12, 30. Ferner ist prinzipiell denkbar, dass die Sensoreinheit 17 einstückig ausgebildet ist und drehfest und in die axiale Richtung 13 beweglich an der Welle 21 befestigt ist. Hierbei ist beispielsweise denkbar, dass die Sensoreinheit 17 mittels eines Führmittels, welches insbesondere an der Aktoreinheit 11 befestigt sein kann, insbesondere relativ zu den Bauteilen 12, 30 in die axiale Richtung 13 geführt wird.In principle, it is also conceivable that the sensor unit 17 is formed in one piece. The sensor unit 17 may, for example, be fastened to one of the components 12, 30 and surround a part of the other component 12, 30, the part of the sensor unit 17 encompassing the other component 12, 30 being further away from the shaft 21 in the radial direction 41 as the other component 12, 30. Further, in principle, it is conceivable that the sensor unit 17 is integrally formed and rotatably and in the axial direction 13 is movably mounted on the shaft 21. In this case, it is conceivable, for example, for the sensor unit 17 to be guided in the axial direction 13, in particular relative to the components 12, 30, by means of a guide means, which may be fastened in particular to the actuator unit 11.
Die Erfindung ist insbesondere auch in dem Fall anwendbar, in welchem ein Bauteil 12, 30 einem Zylinder zugeordnet ist und zwei Aktoren pro Bauteil 12, 30 eingesetzt werden. The invention is particularly applicable also in the case in which a component 12, 30 is associated with a cylinder and two actuators per component 12, 30 are used.

Claims

Patentansprüche claims
1. Ventiltriebvorrichtung mit wenigstens einer Sensorvorrichtung (10) zur Erfassung wenigstens einer Kenngröße (26) und zumindest einer Aktoreinheit (11 ), welche bei zumindest einem Betriebsvorgang eine Verlagerung wenigstens eines Bauteils (12, 30) in eine axiale Richtung (13) bewirkt, dadurch gekennzeichnet, dass die Sensorvorrichtung (10) und die Aktoreinheit (11 ) wenigstens ein gemeinsames Funktionsmittel (14, 15) aufweisen.1. Valve drive device having at least one sensor device (10) for detecting at least one parameter (26) and at least one actuator unit (11), which causes at least one operating operation a displacement of at least one component (12, 30) in an axial direction (13), characterized in that the sensor device (10) and the actuator unit (11) have at least one common functional means (14, 15).
2. Ventiltriebvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass das Funktionsmittel (14, 15) als Befestigungsmittel und/oder elektrisches Verbindungsmittel ausgebildet ist.2. Valve drive device according to claim 1, characterized in that the functional means (14, 15) is designed as a fastening means and / or electrical connection means.
3. Ventiltriebvorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Sensorvorrichtung (10) wenigstens eine Sensoreinheit (17) aufweist, welche zumindest teilweise beweglich in die axiale Richtung (13) gelagert ist. 3. Valve drive device according to one of claims 1 or 2, characterized in that the sensor device (10) has at least one sensor unit (17) which is mounted at least partially movable in the axial direction (13).
4. Ventiltriebvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Sensoreinheit (17) zumindest zwei Sensormittel (18, 19) aufweist, welche in wenigstens einem Betriebszustand bezügliche einer Umfangsrichtung (32) einer Welle (21) aufeinander folgend angeordnet sind und in wenigstens eine Richtung (13) relativ zueinander bewegbar sind.4. Valve drive device according to claim 3, characterized in that the sensor unit (17) at least two sensor means (18, 19) which in at least one operating state with respect to a circumferential direction (32) of a shaft (21) are arranged successively and in at least one Direction (13) are movable relative to each other.
5. Ventiltriebvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aktoreinheit (11 ) zumindest zwei Aktoren (22, 23) aufweist.5. Valve drive device according to one of the preceding claims, characterized in that the actuator unit (11) has at least two actuators (22, 23).
6. Ventiltriebvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass zumindest ein Teil (24) der Sensorvorrichtung (10) zwischen den Aktoren (22, 23) angeordnet ist.6. Valve drive device according to claim 5, characterized in that at least a part (24) of the sensor device (10) between the actuators (22, 23) is arranged.
7. Ventiltriebvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zumindest ein Teil (24) der Sensorvorrichtung (10) in die Aktoreinheit (11 ) integriert ist.7. Valve drive device according to one of the preceding claims, characterized in that at least a part (24) of the sensor device (10) in the actuator unit (11) is integrated.
8. Ventiltriebvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aktoreinheit (11 ) bei wenigstens einem Betriebsvorgang eine Steuerkulisse (25) in einer radialen Richtung (41) beaufschlagt.8. Valve drive device according to one of the preceding claims, characterized in that the actuator unit (11) in at least one operating operation a control cam (25) in a radial direction (41) acted upon.
9. Ventiltriebvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kenngröße (26) ein Drehwinkel ist. 9. Valve drive device according to one of the preceding claims, characterized in that the characteristic (26) is a rotation angle.
10. Ventiltriebvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Funktionsmittel (15) wenigstens ein Masse-Kabel (27) aufweist.10. Valve drive device according to one of the preceding claims, characterized in that the functional means (15) has at least one ground cable (27).
11. Ventiltriebvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Sensorvorrichtung (10) wenigstens einen Hall-Sensor (28) aufweist.11. Valve drive device according to one of the preceding claims, characterized in that the sensor device (10) has at least one Hall sensor (28).
12. Ventiltriebvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Sensorvorrichtung (10) zumindest teilweise einstückig mit wenigstens einer Steuerkulisse (25) und/oder einem Nocken (29) ausgebildet ist. 12. Valve drive device according to one of the preceding claims, characterized in that the sensor device (10) is formed at least partially in one piece with at least one control link (25) and / or a cam (29).
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FR2851613A1 (en) * 2003-02-12 2004-08-27 Toyota Motor Co Ltd Admission quantity control device for internal combustion engine, has admission pressure sensor determining admission pressure range and controlled by electronic control unit that determines opening characteristic range of valve
DE102005003079A1 (en) * 2005-01-22 2006-08-03 Audi Ag Internal combustion engine has housing at which for each actuator, one mounting surface is arranged such that in each mounting surface, lubricant bore is arranged

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107709845A (en) * 2015-10-02 2018-02-16 宝马股份公司 For being adjusted axially the device of switching device
CN107709845B (en) * 2015-10-02 2019-10-18 宝马股份公司 For being adjusted axially the device of switching element
US10612655B2 (en) 2015-10-02 2020-04-07 Bayerische Motoren Werke Aktiengesellschaft Apparatus for axially adjusting a switching element
CN111441839A (en) * 2019-01-17 2020-07-24 通用汽车环球科技运作有限责任公司 Sliding camshaft assembly

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