EP2176523B1 - Dispositif d'inversion d'un entraînement de soupape pour moteur à combustion interne - Google Patents

Dispositif d'inversion d'un entraînement de soupape pour moteur à combustion interne Download PDF

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Publication number
EP2176523B1
EP2176523B1 EP08785400.6A EP08785400A EP2176523B1 EP 2176523 B1 EP2176523 B1 EP 2176523B1 EP 08785400 A EP08785400 A EP 08785400A EP 2176523 B1 EP2176523 B1 EP 2176523B1
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EP
European Patent Office
Prior art keywords
switching
internal combustion
execution unit
combustion engine
valve train
Prior art date
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Active
Application number
EP08785400.6A
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German (de)
English (en)
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EP2176523A1 (fr
Inventor
Alexander Von Gaisberg-Helfenberg
Jens Meintschel
Thomas Stolk
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.)
Mercedes Benz Group AG
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Daimler AG
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Publication of EP2176523A1 publication Critical patent/EP2176523A1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46—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
    • 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 invention relates to an internal combustion engine valve drive switching device according to the preamble of claim 1.
  • the invention has the object of providing a valve train switching device in such a way that both construction volume and weight as well as costs can be saved at a high reliability.
  • the object is achieved in each case by the features of the independent claims, wherein further embodiments of the invention can be taken from the subclaims.
  • the invention is based on an internal combustion engine valve drive switching device with a switching unit.
  • the switching unit has an execution unit with at least one control link, which is formed by at least two switching units of the execution unit.
  • a “switching unit” is to be understood in particular as meaning a unit which is intended to effect a switching operation of at least one valve drive.
  • An “execution unit” is to be understood in particular as a unit which carries out an operation, in particular a switching operation, at least partially.
  • a "control link” should in particular be understood to mean at least one molding or a plurality of moldings together with their edges, which are intended to guide a switching means in at least one switching operation, and individually or together over a certain one Angular range, as preferred over more than 10 °, advantageously over more than 80 ° and more preferably over more than 180 °, extend in the circumferential direction of a drive shaft or connected to a drive shaft component, wherein the formations may be spatially separated from each other and this spatial separation can be canceled by a switching operation.
  • a "shaping” should in particular be understood to mean an elevation or a recess which may have various forms of extension that appear appropriate to the person skilled in the art, such as, in particular, an elongated extension shape.
  • a molding may in particular be a slot or a groove.
  • a "slot” is to be understood in particular a narrow recess.
  • a “survey” is meant in particular an elevated location compared to the area surrounding the site and / or a bulge meant.
  • a “switching operation” should be understood in particular to mean a relative movement and in particular an axial relative movement between two components.
  • a “switching unit” is to be understood in particular as meaning a unit which is intended to effect a switching operation, in particular also in cooperation with at least one switching means or another unit.
  • a “switching means” is to be understood in particular a means which is intended to effect a switching operation, in particular also in cooperation with at least one switching unit or another unit. With an embodiment according to the invention, a simple construction of the switching unit can be achieved.
  • the execution unit has at least two control means, which are positioned on mutually facing ends of at least two of the switching units of the execution unit.
  • a "control means" is to be understood in particular as means for controlling a process, in particular for controlling a switching operation.
  • the switching units may be associated with different valves, which in particular may be associated with different cylinders. For a particularly flexible circuit, the switching units can be associated with only one valve.
  • control gate is formed by the control means. This can be realized in a simple manner, a switching device for switching operations between the switching units and the switching means.
  • control link is designed such that the switching units can be actuated by a switching means of the execution unit in a defined switching sequence.
  • control scenes can be used in a continuous operation.
  • a "defined switching sequence” should be understood in particular to take place according to a defined procedure and at least partially offset in time and / or separate switching operations, which are particularly suitable for permanent operation with at least two occurring defined switching sequences.
  • the execution unit has at least one switching means, which is intended to effect a switching of a valve train by interacting with the control link.
  • the execution unit has at least one switching means, which is intended to effect a switching of a valve train by interacting with the control link.
  • the execution unit has at least one switching means and at least one of the switching units at least one control means, wherein the control means and the switching means are provided to change due to an interaction with each other at least one function of the switching unit and / or the switching means.
  • a compact switching structure can be achieved.
  • a "function" is meant in particular a mode of action and in particular a mode of action in an interaction with another structural unit, which may be, for example, the switching means or the switching unit.
  • an advantage may be achieved by the function of immersing the switching means in the switching unit and / or pushing out the switching means from the switching unit and / or operating the switching unit by the switching means and / or switching the switching means from a switching unit another switching unit and / or calming the movement of a switching unit is.
  • an effective mechanical switching device can be realized.
  • a "dipping" of the switching means in the switching unit in particular a retraction of trained as a survey or pen as switching means should be meant in a groove or a slot of a switching unit.
  • By “pushing out” of the switching means from the switching unit in particular the removal of the switching means designed as an elevation or as a pin should be understood by pushing out of the groove or the slot of the switching unit.
  • a “calming down” movement one Switching unit should also be understood a rest position of the switching unit relative to the switching means after a movement of the switching unit relative to the switching means.
  • the execution unit comprises at least one switching means, which is provided to act on the control link in at least one radial direction.
  • a "radial direction” is to be understood in particular a direction radially with respect to a drive shaft.
  • acting on the control link by the switching means is meant in particular that the switching means is intended to impinge upon movement to a formation of a control link and / or to act with a force.
  • the execution unit can comprise an electronic evaluation unit and be provided to carry out a second switching operation on the basis of at least one signal, a first switching operation and then, depending on an electronic evaluation, a second switching operation.
  • the execution unit is particularly advantageously provided for carrying out a first switching operation on the basis of at least one signal and then carrying out a second switching operation independently of an electronic evaluation.
  • "Provided” is to be understood in particular to be specially equipped and / or designed.
  • a “signal” is intended in particular to mean a triggering process and / or a sign, such as a current pulse, with a defined meaning and / or an application and / or positioning of a mechanical component in a switching position and / or mechanical interaction initiated from outside the execution unit be understood.
  • a "triggering process” is to be understood in particular as meaning a mechanical, electrical, quantum-mechanical and / or electromechanical process, which in particular can lead to a specific positioning of a switching means.
  • an "execution unit” is to be understood as meaning in particular a unit which carries out at least one operation based on a signal and which in particular consists of mechanical, quantum mechanical, electrical and / or electromagnetic components and in particular also of electronic components, if these Operation at least negligible and particularly advantageous not affect, may be formed.
  • the fact that a switching operation takes place “after” another switching operation should be understood in particular that the switching operations take place at least partially offset in time and / or particularly advantageous in time are overlap-free.
  • An electronic "evaluation” is intended in particular to mean an electronic classification and / or evaluation of a state and / or a signal and / or a process.
  • By performing "independently" of an electronic evaluation it is intended in particular to mean an automated execution in a mechanical, quantum mechanical, electrical and / or electromagnetic manner. According to the invention, a compact and reliable functioning structure can be achieved in a structurally simple manner.
  • the execution unit is at least partially formed as a mechanical unit. This can save design costs.
  • the execution unit is at least partially designed as a transmission.
  • the transmission can be designed in particular as a cam gear.
  • the expert appear appropriate sense gearbox conceivable, such as gear transmission, lever mechanism, hydraulic transmission, etc.
  • the execution unit is provided to effect a switching of a valve train and / or a change of at least one valve lift curve and / or switching off at least one valve and / or at least one change of operating modes of an internal combustion engine.
  • a simple and efficient operation of the valves of a valve train can be achieved.
  • a "valve train” is to be understood, in particular, as a structural unit which is intended to allow, at least in part, a gas exchange in internal combustion engines which are based on a reciprocating piston engine.
  • a "switching over" of a valve train should in particular be understood to mean a change process for changing at least one property and / or at least one function of the valve train and / or changing between different operating modes.
  • valve lift curve is meant the graph of the function obtained by measuring the valve lift, which is measured relative to the cylinder to which the valve is associated, above the rotation angle of the drive shaft associated with the valve train in a Cartesian coordinate system applying.
  • different operating modes should be understood in particular the operation of valves with different timing and / or valve lift curves.
  • change of operating modes is to be understood in particular the operation of the internal combustion engine with full load, with partial load, in the auto-ignition, with cylinder deactivation, with early or late inlet closure or other, the skilled worker appear appropriate modes.
  • the execution unit comprises at least one switching means, and the execution unit is provided to actuate the switching units independently of one another in at least one operating mode, at least as a function of the positions of the switching units relative to the switching means.
  • the number of required switching means can be reduced.
  • the fact that the execution unit "actuates" a switching unit should in particular mean cooperation and / or interaction of the execution unit or parts of the execution unit with the switching unit, which can bring about a switching operation. More specifically, by referring to the execution unit operating the switching units "independently", it is meant that operation of a switching unit by the execution unit does not affect operation of another switching unit by the execution unit.
  • An “operating mode” is to be understood in particular as a type of operation.
  • the execution unit has at least one switching means, which is provided to actuate the at least two switching units at least partially offset in time in at least one operating mode.
  • the number of required switching means can be reduced.
  • the execution unit has at least one switching means which is provided to actuate at least one of the switching units in dependence on at least one change in position of at least one of the switching units relative to the switching means.
  • the number of required switching units and the number of necessary switching means can be reduced.
  • the execution unit has at least two switching devices assigned to different switching means.
  • a switching operation can be designed in a component saving manner.
  • a "switching direction" is to be understood in particular a direction in which a component is moved relative to the switching means in an at least partially caused by the switching means switching operation, in particular is moved in translation. Basically also superimposed movements, such as translational and rotational movements conceivable.
  • the switching units are at least partially decoupled in their movement and correspond with at least one switching means of the execution unit.
  • the switching units can be moved relative to the switching means in different directions.
  • one switching unit may rest relative to the switching means while another switching unit moves relative to the switching means.
  • a switching unit "corresponding" to the switching means should be understood to mean a switching unit which is designed such that it allows a switching operation in cooperation with the switching means.
  • Switching units which are at least partially “decoupled” in their movement should, in particular, be understood as switching units for which at least one movement of a switching unit relative to the other switching unit runs independently of the latter in at least one operating mode.
  • the execution unit is provided to actuate at least two switching units simultaneously in at least one operating mode. This can be achieved in a structurally simple manner that a switching means can actuate two switching units at least partially decoupled.
  • the execution unit have a camshaft, at least a large part of those shifting units, by which valve lift curves of valves which are assigned to the camshaft changeable, and at least one switching means, which is intended to actuate the switching units.
  • This can be a coherent switching achieved and thus a malfunction of individual cams are prevented.
  • at least fifty percent, in particular at least seventy percent, and particularly advantageously at least ninety percent, of the total number should be meant by a "majority".
  • a valve should in particular be "assigned" to a camshaft when the valve is indirectly or directly opened and / or closed by means of the camshaft.
  • the execution unit comprises a switching means, which is designed as a switching pin.
  • the execution unit comprises at least one switching means, which is provided to effect, by interacting with at least one switching unit, an axial displacement of the switching unit relative to the switching means and thereby a switching of at least one valve train.
  • the valve train can be switched in a structurally simple way.
  • An "axial" displacement of the switching unit should in particular be understood to mean a displacement of the switching unit in a main extension direction of a drive shaft, which may be a camshaft.
  • At least one switching unit is formed as an axially displaceable portion of a camshaft with cams with at least partially different contour.
  • the switching unit can immediately perform a switching operation on a cam.
  • a "cam” is intended in particular to mean a curved projection on a shaft which rotates in an operating mode and which may be designed as a camshaft.
  • An "at least partially differently shaped contour” is to be understood in particular as meaning a different extent of the projections of different cams and / or of a cam.
  • FIG. 1 shows an internal combustion engine Ventiltriebumschaltvoriques with a switching unit 36, the two actuators 64, 65, a camshaft 46 and an execution unit 38 which is intended to perform a second switching operation based on a signal a first switching operation and then independently of an electronic evaluation.
  • the execution unit 38 has exclusively mechanical components and is consequently designed as a mechanical unit 40.
  • the execution unit 38 comprises two switching means 3, 4, each formed by a switching pin, which can be actuated by the actuators 64, 65 or moved out of the actuators 64, 65.
  • the execution unit 38 comprises switching units 1, 2, which are parts of the camshaft 46.
  • the switching units 1, 2 have a common main extension direction, which coincides with a main extension direction of the camshaft 46.
  • the switching means 3, 4 also have a common main extension direction which extends radially to the camshaft 46 and to the switching units 1, 2.
  • the switching means 3, 4 are each provided to actuate the two switching units 1, 2.
  • a switching means 3, 4 which takes place in its main direction of extension to the switching units 1, 2, first a loading of a switching unit 1, 2 and then an interaction between the switching means 3, 4 and the switching units 1, 2 takes place, which based on the FIGS. 4a to 19b is described and due to which an axial displacement of the switching units 1, 2 takes place relative to the switching means 3, 4 along the main extension direction of the switching units 1, 2.
  • With the axial displacement of the switching units 1, 2 is an axial displacement of belonging to the switching units 1, 2 cams 7, 8, 48, 50, 26, 27, 28, 29, 30, 31 instead.
  • the cams 7, 8 and 48, 50 have a different contour such that the maximum radial extent of the cams 8, 50 differs from the maximum radial extent of the cams 48, 7. Since the camshaft 46 comprises only the cams 7, 8, 48, 50, 26, 27, 28, 29, 30, 31, both switching means 3, 4 can each have those switching units 1, 2, through which valve lift curves of valves, that of the camshaft 46 are assigned, are changeable, press.
  • the switching unit 1 has a control means 52 which through sections 9, 11, 13, 16, 18 (see FIG. 3 ), which are formed by four grooves is formed. Furthermore, the switching unit 2 has a control means 54, which by sections 10, 12, 14, 15, 17 (see FIG. 3 ), which are formed by four grooves is formed.
  • the control means 52, 54 are positioned in end regions or on ends 56, 58 of the switching units 1, 2, which face each other in the main extension direction of the camshaft 46 and are directly adjacent.
  • the control means 52, 54 form two control slots 5, 6, which are arranged one behind the other in the main direction of extension of the camshaft 46.
  • the control scenes 5, 6 are thus each formed by the two switching units 1, 2.
  • the switching means 3, 4 are arranged so that they can act on the control gates 5, 6 in the radial direction in a switching operation.
  • the switching means 3, 4 are arranged along the main direction of extension of the camshaft 46 in the same sequence as the control tracks 6, 5 one behind the other.
  • the switching means 3 can act on the control link 6 and the switching means 4, the control link 5.
  • FIG. 2 shows a development of one of the control blocks 5 or 6, which extends over more than one camshaft revolution, and about 540 °. In principle, other angle ranges which appear reasonable to the person skilled in the art are also conceivable.
  • each of the control slots 5, 6 allows a change of the switching means 3, 4 during a switching operation from one switching unit 2 to another switching unit 1 and back.
  • FIG. 3 schematically shows a plan view of the developments of the control blocks 5 and 6, which form a gear 42 which is formed as a cam gear.
  • the settlement of the two control scenes 5, 6 is formed by two L-shaped parts of a settlement of the switching units 1, 2, which have a rectangular shape between two switching operations, in which different switching means 3, 4 are involved.
  • An L-shaped part comprises in each case two halves of the control slots 5, 6, which belong to different control slots 5, 6.
  • the control blocks 5, 6 have the sections 9 to 18, which cause different functions of the switching means 3, 4 and / or the switching units 1, 2 in interaction with the switching means 3, 4, wherein the different sections 9 to 18 of the control blocks 5, 6 in response to a rotation angle of the camshaft 46 (see FIG. 1 ) come into operative connection with the switching means 3, 4.
  • the sections 9 to 18 are immersion sections 9 and 10, operating sections 11 and 12, Ausschiebeabête 13 and 14, transition sections 15 and 16 and reassurance sections 17 and 18.
  • the functions is a dipping of the switching means 3, 4 in the immersion portion 9, 10 of the control link 5 or 6, a pushing out of the switching means 3, 4 of a Ausschiebeabêt 13, 14 of the control link 5 or 6, operating at least one of the switching units 1 or 2, by the switching unit 1, 2 on the in the operating section 11, 12 located switching means 3, 4 is moved, a Transferring the switching means 3, 4 from one of the switching units 1, 2 to another switching unit 1, 2 and calming the switching movement of one of the switching units 1, 2.
  • the switching means 3, 4 come in dependence on the direction of rotation of the camshaft 46 with the sections. 9 to 18 in different order in operative connection.
  • FIGS. 4a . 4b to 11a . 11b such as 12a . 12b to 19a . 19b show on the basis of individual intermediate states, a changeover of valve trains, which by the cams 7, 8, 48, 50 of the camshaft 46 (see FIG. 1 ) are actuated by axial displacement of the two switching units 1, 2, wherein in the FIGS. 4a . 4b to 11a . 11b the switching process to the right and in the Fig. 12a . 12b to 19a . 19b the shift is shown to the left. In the switching operation to the left, the switching units 1, 2 move such that the ends 56, 58 relative to the switching means 3, 4 in the direction of the cams 48, 50 in a main extension direction 62 (see FIGS.
  • the switching units 1, 2 move in a direction opposite main extension direction 60 (see FIGS. 5a and 5b ).
  • the switching operations to the right and to the left each consist of two switching operations in which the individual switching units 1, 2 are moved relative to the switching means 3, 4 in the axial direction.
  • a first step according to Fig. 4a and 4b is the right switching means 3 by the actuator 65 (see FIG. 1 ) is retracted into the immersion section 9 of the control link 6 due to a signal given by the actuator 65 in the form of a magnetic field.
  • a second step according to Fig. 5a and 5b is the right switching means 3 in the operating portion 12 of the control link 6 and starts the right switching unit 2 in the main extension direction 60 of the camshaft 46 (see FIG. 1 ), which is an axial direction.
  • a third step according to Fig. 6a and 6b the displacement of the right switching unit 2 is calmed and then completed.
  • the switching means 3 After shifting the switching unit 2, which is a position change relative to the switching means 3, 4, the switching means 3 actuates the switching unit 1.
  • a fourth step according to Fig. 7a and 7b is the right switching means 3 just before the operating portion 11 of the control link 6 of the switching unit 1.
  • a fifth step according to Fig. 8a and 8b is the right switching means 3 in the operating portion 11 of the control link 6 of the left switching unit 1 and starts its displacement in the Main extension direction 60.
  • a sixth step according to Fig. 9a and 9b the displacement of the left switching unit 1 is completed.
  • a seventh step according to 10a and 10b is the right switching means 3 in the Ausschiebeabêt 14 of the control link 6 of the right switching unit 2 and is pushed back into the starting position in the direction of a vertical axis 19, which in the radial direction relative to the camshaft 46 (see FIG. 1 ) runs.
  • the right switching means 3 is again in the starting position. The two switching operations in which the switching units 1, 2 are shifted to the right relative to the switching means 3, 4, so run after the actuator 64 or the actuator 65 (see FIG. 1 ) has given the signal automatically with rotating camshaft 46, ie without further, coming from outside of the execution unit 38 signals.
  • a first step according to Fig. 12a and 12b is the left switching means 4 by the actuator 64 (see FIG. 1 ) is retracted into the immersion section 10 of the control link 5 due to a signal given by the actuator 64.
  • a second step according to Fig. 13a and 13b is the left switching means 4 just before the beginning of the operating portion 11 of the control link 5 in the left switching unit 1.
  • a third step according to Figs. 14a and 14b is the left switching means 4 in the operating portion 11 of the control link 5 of the left switching unit 1 and starts the left switching unit 1 in the main extension direction 62, which is also an axial direction to move.
  • 19a and 19b is the left switching means 4 back to the starting position.
  • both switching units 1, 2 are operated simultaneously at times. The same applies to the switching process to the right.
  • the switching means 3, 4 correspond to the switching units 1, 2.
  • the two switching units 1, 2 can be actuated by the switching means 3, 4 in a defined switching sequence.
  • the switching operations to the left and to the right can therefore be repeated as often as desired in alternating order.
  • the switching units 1, 2 are brought by the control scenes 5, 6 to the immersion, actuation, change over and calm again and again in different switching states.
  • the switching units 1, 2 are shifted individually and successively in the same direction to the left or to the right.
  • the switching units 1, 2 are in their movement in the main direction of extension of the camshaft 46 (see FIG. 1 ) so partially decoupled.
  • each switching means 3, 4 each assigned a switching direction.
  • valve lift curves of valves which are opened and closed due to the rotation of the camshaft 46 in an operating mode, are changed. Furthermore, valves can be switched off by the switching and thus remain closed. With a change of the valve lift curves may be accompanied by a change of the operating modes of the internal combustion engine.

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

Claims (18)

  1. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne doté d'une unité de commutation (36), caractérisé en ce que l'unité de commutation (38) présente au moins une unité d'exécution (38) comprenant au moins une coulisse de commande (5, 6) qui est conçue à partir d'au moins deux unités de commutation (1, 2) de l'unité d'exécution (38).
  2. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon la revendication 1, caractérisé en ce que l'unité d'exécution (38) présente au moins deux moyens de commande (52, 54) qui sont positionnés sur des extrémités (56, 58) en regard l'une de l'autre d'au moins deux unités de commutation (1, 2) de l'unité d'exécution (38).
  3. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon la revendication 2, caractérisé en ce que la coulisse de commande (5, 6) est conçue à partir des moyens de commande (52, 54).
  4. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que la coulisse de commande (5, 6) est conçue de telle manière que les unités de commutation (1, 2) puissent être actionnées par un moyen de commutation (3, 4) de l'unité d'exécution (38) dans une séquence de commutation définie.
  5. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) présente au moins un moyen de commutation (3, 4) qui est prévu pour réaliser par une interaction à l'aide de la coulisse de commande (5, 6) une commutation d'un mécanisme de commande de soupapes.
  6. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) présente au moins un moyen de commutation (3, 4) et au moins l'une des unités de commutation (1, 2) présentent au moins un moyen de commande (52, 54), le moyen de commande (52, 54) et le moyen de commutation (3, 4) étant prévus pour modifier au moins une fonction de l'unité de commutation (1, 2) et/ou du moyen de commutation (3, 4) en raison d'une interaction entre eux.
  7. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) comprend au moins un moyen de commutation (3, 4) qui est prévu pour alimenter la coulisse de commande (5, 6) dans au moins une direction radiale.
  8. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) est prévue pour exécuter, en fonction d'au moins un signal, une première opération de commutation et ensuite indépendamment d'une évaluation électronique une seconde opération de commutation.
  9. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) est prévue pour commuter un mécanisme de commande de soupapes et/ou un changement d'au moins une courbe de levée de soupape et/ou un arrêt d'au moins une soupape et/ou au moins un changement de modes de fonctionnement d'un moteur à combustion interne.
  10. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) comprend au moins un moyen de commutation (3, 4), et l'unité d'exécution est prévue pour actionner au moins en fonction des positions des unités de commutation (1, 2) par rapport au moyen de commutation (3, 4) les unités de commutation (1, 2) dans au moins un mode de fonctionnement indépendamment de l'une de l'autre.
  11. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) présente au moins un moyen de commutation (3, 4) qui est prévu pour actionner dans au moins un mode de fonctionnement les deux unités d'actionnement (1, 2) ou plus avec un décalage temporel au moins partiel.
  12. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) présente au moins un moyen de commutation (3, 4) qui est prévu pour actionner l'une des unités de commutation (1, 2) en fonction d'au moins un changement de position d'au moins l'une des unités de commutation (1, 2) par rapport au moyen de commutation (3, 4).
  13. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) présente au moins deux moyens de commutation (3, 4) associés à différents dispositifs de commutation.
  14. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que les unités de commutation (1, 2) sont découplées au moins partiellement dans leur mouvement et correspondent à au moins un moyen de commutation (3, 4) de l'unité d'exécution (38).
  15. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) est prévue pour actionner simultanément au moins dans un mode de fonctionnement au moins deux des unités de commutation (1, 2).
  16. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) présente un arbre à cames (46), du moins en grande partie les unités de commutation (1, 2), qui peuvent modifier les courbes de levée des soupapes qui sont associées à l'arbre à cames (46), et au moins un moyen de commutation (3, 4) qui est prévu pour actionner les unités de commutation (1, 2).
  17. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité d'exécution (38) présente au moins une unité de commutation (3, 4) qui est prévue pour réaliser par une interaction avec au moins une unité de commutation (1, 2) un déplacement axial de l'unité de commutation (1, 2) par rapport au moyen de commutation (3, 4) et ainsi une commutation d'au moins un mécanisme de commande de soupapes.
  18. Dispositif de commutation du mécanisme de commande de soupapes d'un moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une unité de commutation (1, 2) est conçue en tant qu'élément d'un arbre à cames (46) pouvant être déplacé axialement, les cames (7, 8, 26, 27, 28, 29, 30, 31, 48, 50) ayant au moins en partie un contour différent.
EP08785400.6A 2007-08-10 2008-08-07 Dispositif d'inversion d'un entraînement de soupape pour moteur à combustion interne Active EP2176523B1 (fr)

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DE102007037745A DE102007037745A1 (de) 2007-08-10 2007-08-10 Brennkraftmaschinenventiltriebumschaltvorrichtung
PCT/EP2008/006490 WO2009021669A1 (fr) 2007-08-10 2008-08-07 Dispositif d'inversion d'un entraînement de soupape pour moteur à combustion interne

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DE102007037746B4 (de) 2007-08-10 2022-06-15 Mercedes-Benz Group AG Brennkraftmaschinenventiltriebumschaltvorrichtung
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DE102008029349A1 (de) * 2008-06-20 2009-12-24 Daimler Ag Ventiltriebvorrichtung
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JP5093168B2 (ja) * 2009-03-23 2012-12-05 トヨタ自動車株式会社 可変動弁機構の制御装置
DE102009034990A1 (de) * 2009-07-28 2011-02-03 Daimler Ag Ventiltriebvorrichtung
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DE102011109676A1 (de) 2011-08-08 2012-02-09 Daimler Ag Brennkraftmaschine mit mindestens einem Zylinderkopf
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CN112523831B (zh) * 2020-12-03 2022-05-24 杰锋汽车动力系统股份有限公司 一种用于内燃机的两级可变气门升程机构

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US8347837B2 (en) 2013-01-08
EP2176523A1 (fr) 2010-04-21
DE102007037745A1 (de) 2009-02-12
WO2009021669A1 (fr) 2009-02-19
CN101779008B (zh) 2013-09-11
CN101779008A (zh) 2010-07-14
JP2010535967A (ja) 2010-11-25
JP5487452B2 (ja) 2014-05-07
US20100199934A1 (en) 2010-08-12

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