WO2006084557A1 - Dispositif pour accoupler ou desaccoupler deux elements d'actionnement d'une distribution d'un moteur a combustion interne et procede correspondant - Google Patents

Dispositif pour accoupler ou desaccoupler deux elements d'actionnement d'une distribution d'un moteur a combustion interne et procede correspondant Download PDF

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Publication number
WO2006084557A1
WO2006084557A1 PCT/EP2006/000492 EP2006000492W WO2006084557A1 WO 2006084557 A1 WO2006084557 A1 WO 2006084557A1 EP 2006000492 W EP2006000492 W EP 2006000492W WO 2006084557 A1 WO2006084557 A1 WO 2006084557A1
Authority
WO
WIPO (PCT)
Prior art keywords
armature
coupling
permanent magnetic
electromagnet
combustion engine
Prior art date
Application number
PCT/EP2006/000492
Other languages
German (de)
English (en)
Inventor
Matthias Gregor
Jens Meintschel
Tilmann RÖMHELD
Thomas Stolk
Alexander Von Gaisberg-Helfenberg
Original Assignee
Daimlerchrysler 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 Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Priority to JP2007554459A priority Critical patent/JP2008530424A/ja
Publication of WO2006084557A1 publication Critical patent/WO2006084557A1/fr
Priority to US11/891,053 priority patent/US20080006232A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets

Definitions

  • the invention relates to a method for coupling or decoupling two actuators of a valve train of an internal combustion engine according to the preamble of claim 1 and a device for this purpose according to the preamble of claim. 7
  • Such a device for coupling or decoupling two actuating levers of a valve train of an internal combustion engine is known from EP 0 833 041 A1.
  • the device has a solenoid mounted in the cylinder head of the internal combustion engine, whose armature can assume two end positions.
  • the armature actuates a locking element acting on the pivoting lever.
  • To actuate the locking element of the electromagnet must be constantly energized, creating an unnecessarily high electrical energy consumption.
  • the invention has for its object to provide a method and apparatus for coupling or decoupling of two actuators of a valve train of an internal combustion engine, which work with high reliability with significantly reduced electrical energy consumption. This object is achieved in a method for coupling or decoupling two actuators of a valve train of an internal combustion engine having the characterizing features of claim 1 and in a device for coupling or decoupling two actuators of a valve train of an internal combustion engine with the characterizing features of claim 7.
  • An essential advantage of the invention is that the armature can additionally be acted upon by a permanent-magnetic force. This results in that the armature retains at least one of its positions occupied by a previous energization of the electromagnet after switching off the energization by the permanent magnetic effect, whereby the electromagnet does not have to be constantly energized.
  • the armature leaves its retained position by re-energizing the electromagnet with reverse polarization, which requires only a short current pulse.
  • the permanent magnetic force is applied by a permanent magnet, which is arranged in the magnetic circuit, in particular in the armature, whereby a stable condition is ensured in one position for a long period of time.
  • the device additionally has a return spring for acting on the armature, which moves the armature without the use of electrical energy.
  • the permanent magnetic force is greater than the force of the return spring, whereby a stable position of the armature is ensured, and in at least one position the permanent magnetic force less than the force of the return spring, whereby a reliable movement of the anchor is enabled.
  • Fig. 1 is a partial section through a device having an element for coupling two selectively acting on a gas exchange valve actuating elements of a valve train of an internal combustion engine, wherein the element is acted upon by an electromagnet, which cooperates with an armature operatively connected to the element,
  • FIG. 2 shows a section through the device with the armature in a first position
  • FIG Fig. Figure 3 is a section through the device with the armature in a second position.
  • the invention relates to a device for coupling or decoupling of two optionally on a gas exchange valve
  • actuators 2, 3 of a valve train of an internal combustion engine wherein as actuators 2, 3 camshaft adjuster, camshafts, compensating elements, supporting elements or cam followers, such as operating lever or bucket tappets may be provided.
  • actuators 2, 3 camshaft adjuster, camshafts, compensating elements, supporting elements or cam followers, such as operating lever or bucket tappets may be provided.
  • FIG. 1 shows parts of the valve drive for actuating the at least one gas exchange valve 1 of the internal combustion engine with an inner lever 2 and an outer lever 3.
  • the outer lever 3 has two, for example, provided with Nockengleit vom 6 arms 7, which can be acted upon by at least one cam 18 with a small stroke.
  • the arms 7 of the outer lever 3 surround the inner lever 2, which is actuated by at least one cam 17 with a large stroke.
  • the outer lever 3 is at least indirectly supported on a component 8 of the internal combustion engine, wherein the component 8 may be a valve clearance compensation element, a housing part of the internal combustion engine or a bearing point. At the other end it acts on the gas exchange valve.
  • the system thus consists of two levers, the outer lever 3, which in the present case is supported on the hydraulic valve clearance compensation element 8 and acts on the valve stem 1a of the gas exchange valve 1 to be actuated, and the inner lever 2, which is mounted on the outer lever 3.
  • the element 5 In order to operate the gas exchange valve 1 either via the inner lever 2 or only via the outer lever 3 and thus to achieve different valve strokes, the element 5 is provided.
  • the element 5 is acted upon by an electromagnet 9 in a locking direction 12 and an unlocking direction 13, which consists of a coil 9 a, a yoke 9 b and an armature 10.
  • the armature 10 is in operative connection with the element 5, d. H .
  • the armature 10 is connected to the element 5.
  • the element 5 is additionally acted upon by a spring element 11 in the locking direction 12.
  • the element 5 is displaceable in the locking direction 12 by the spring element 11 and / or the armature 10 of the electromagnet 9 and can be displaced in the unlocking direction 13 by the armature 10 acting as a return element.
  • the invention proposes that the device has a permanent magnetic device 15 for acting on the armature 10.
  • the permanent magnetic device 15 is a part of the armature 10, which is otherwise made of non-permanent magnetic material, or the permanent magnetic force is by the Anchor 10 applied, which was magnetized by a previous energization.
  • Figure 2 shows the element 5 of the device in the locking position.
  • the electromagnet 9 is de-energized, whereby the spring element 11, the armature 10 in the locking direction 12 at least partially from the electromagnet 9 pushes until the element 5 abuts against a stop 16, which is preferably mounted on the outer lever 3.
  • This position is stable without energizing the electromagnet 9, since the force of the spring element 11 is greater than the reduced because of the large distance between the armature 10 and the yoke 9b effect of the permanent-magnetic device 15.
  • the inner lever 2 is non-positively connected to the outer lever 3, d. H. the cam 17 with a large stroke acted on the inner lever 2, the outer lever 3, which then actuates the gas exchange valve 1, wherein the cam 18 runs with a small stroke to a void.
  • Fig. 3 shows the element 5 of the device in unlocking position.
  • the electromagnet 9 is energized for a short time, whereby the armature 10 is pulled into a recess 19 formed by the yoke 9b.
  • the armature 10 pulls the element 5 connected to it against the resistance of the spring element 11 under the inner lever 2 away.
  • the inner lever 2 is deactivated, d. H. the cam 18 with a small stroke acts on the outer lever 3, which then actuates the gas exchange valve 1, wherein the inner lever 2, which is acted upon by the cam 17 with a large stroke, only executes a vibrating empty movement on the outer lever 3.
  • the armature 10 by brief energization of the electromagnet 9 in the recess 19th drawn . Because of the small distance between the armature 10 and the recess 19, the effect of the permanent magnet device 15 is greater than the force of the spring element 11 which is why even without energization of the electromagnet 9 of the armature 10 remains in this position, resulting in a significantly reduced electrical energy consumption.
  • the electromagnet 9 is momentarily energized with reverse polarity.

Landscapes

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

Abstract

L'invention concerne un procédé et un dispositif pour accoupler ou désaccoupler deux éléments d'actionnement (2,3) d'une distribution d'un moteur à combustion interne, lesdits éléments d'actionnement agissant de manière sélective sur une soupape de changement des gaz. Un élément (5) servant à accoupler les éléments d'actionnement (2,3), est polarisé, au moins indirectement, par un électroaimant (9) dont la bobine (9a) et la culasse (9b) coopèrent avec un induit (10) en liaison active avec l'élément (5), l'induit (10) pouvant prendre au moins deux positions. L'objectif de l'invention est de créer un procédé et un dispositif pour accoupler ou désaccoupler deux éléments d'actionnement d'une distribution d'un moteur à combustion interne, permettant d'obtenir une fiabilité de fonctionnement élevée et une consommation d'énergie électrique considérablement réduite. A cet effet, l'induit (10) peut être polarisé en outre par une unité à aimantation permanente (15).
PCT/EP2006/000492 2005-02-10 2006-01-20 Dispositif pour accoupler ou desaccoupler deux elements d'actionnement d'une distribution d'un moteur a combustion interne et procede correspondant WO2006084557A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007554459A JP2008530424A (ja) 2005-02-10 2006-01-20 内燃機関の弁装置の二つの作動要素を連結又は分離する装置、及びその方法
US11/891,053 US20080006232A1 (en) 2005-02-10 2007-08-08 Apparatus and method for coupling and decoupling actuating elements of a valve drive of an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005006056.0 2005-02-10
DE102005006056A DE102005006056A1 (de) 2005-02-10 2005-02-10 Vorrichtung zur Koppelung bzw. Entkoppelung zweier Betätigungselemente eines Ventiltriebes einer Brennkraftmaschine und Verfahren hierzu

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/891,053 Continuation-In-Part US20080006232A1 (en) 2005-02-10 2007-08-08 Apparatus and method for coupling and decoupling actuating elements of a valve drive of an internal combustion engine

Publications (1)

Publication Number Publication Date
WO2006084557A1 true WO2006084557A1 (fr) 2006-08-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/000492 WO2006084557A1 (fr) 2005-02-10 2006-01-20 Dispositif pour accoupler ou desaccoupler deux elements d'actionnement d'une distribution d'un moteur a combustion interne et procede correspondant

Country Status (4)

Country Link
US (1) US20080006232A1 (fr)
JP (1) JP2008530424A (fr)
DE (1) DE102005006056A1 (fr)
WO (1) WO2006084557A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2976617A1 (fr) * 2011-06-15 2012-12-21 Valeo Sys Controle Moteur Sas Controle d'un moteur a combustion interne
FR2979945A1 (fr) * 2011-09-12 2013-03-15 Valeo Sys Controle Moteur Sas Systeme de transmission du mouvement d'au moins deux cames a au moins une soupape
EP3183438A4 (fr) * 2014-08-18 2018-09-05 Eaton Corporation Actionneur sans contact pour verrous d'ensemble culbuteur

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2050933A1 (fr) * 2007-10-17 2009-04-22 Delphi Technologies, Inc. Système de fonctionnement de soupape comportant un suiveur de contact à rouleau à deux étapes
DE102008059207A1 (de) 2008-11-27 2010-06-02 Daimler Ag Nockenfolger zur Betätigung eines Gaswechselventils einer Brennkraftmaschine
CN102482960B (zh) 2009-08-24 2014-03-12 雅马哈发动机株式会社 可变动阀装置、具有该可变动阀装置的发动机及跨乘式车辆
US10180089B2 (en) * 2014-08-18 2019-01-15 Eaton Intelligent Power Limited Valvetrain with rocker arm housing magnetically actuated latch
US10731517B2 (en) 2015-03-30 2020-08-04 Eaton Intelligent Power Limited Valvetrain with rocker arm housing magnetic latch
EP3303782B1 (fr) * 2015-06-04 2021-01-13 Eaton Intelligent Power Limited Rampe de culbuteurs à verrouillage électrique ayant une fonctionnalité de diagnostic embarqué (obd) intégrée
US10781726B2 (en) * 2015-06-04 2020-09-22 Eaton Intelligent Power Limited Electrically latching rocker arm assembly having built-in OBD functionality
US11002156B2 (en) 2015-08-18 2021-05-11 Eaton Intelligent Power Limited Non-contacting actuator for rocker arm assembly latches
US10358951B2 (en) 2015-08-18 2019-07-23 Eaton Intelligent Power Limited Sliding contact for electrically actuated rocker arm
EP3426898B8 (fr) 2016-03-11 2021-04-21 Eaton Intelligent Power Limited Couplage inductif à des ensembles culbuteurs
DE102016208472A1 (de) 2016-05-18 2017-11-23 Schaeffler Technologies AG & Co. KG Anordnung zur elektromechanischen Betätigung zumindest eines schaltbaren Schlepphebels für einen Ventiltrieb einer Brennkraftmaschine
WO2018075342A1 (fr) 2016-10-17 2018-04-26 Eaton Corporation Obd basée sur la rétroaction de circuit magnétique
US10662826B2 (en) 2016-10-17 2020-05-26 Eaton Intelligent Power Limited OBD based on magnetic circuit feedback
DE102017106689A1 (de) 2017-03-29 2018-10-04 Schaeffler Technologies AG & Co. KG Variabler Ventiltrieb eines Verbrennungskolbenmotors
WO2019010013A1 (fr) * 2017-07-05 2019-01-10 Eaton Intelligent Power Limited Commandes dans des conditions difficiles d'un suiveur de doigt de rouleau de commutation à verrouillage électrique
DE102018102778B4 (de) * 2018-02-08 2024-05-23 Schaeffler Technologies AG & Co. KG Schaltbarer Schlepphebel
EP3784883B1 (fr) * 2018-04-26 2024-01-31 Eaton Intelligent Power Limited Commutateur fournissant un retour de diagnostic embarqué pour l'assemblage d'un culbuteur à verrouillage électromagnétique
US10731516B2 (en) 2018-07-13 2020-08-04 Eaton Intelligent Power Limited Sliding spring contacts providing electrical power to rocker arms

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US5544626A (en) * 1995-03-09 1996-08-13 Ford Motor Company Finger follower rocker arm with engine valve deactivator
US5655488A (en) * 1996-07-22 1997-08-12 Eaton Corporation Dual event valve control system
EP0833041A1 (fr) * 1996-09-30 1998-04-01 Eaton Corporation Une commande électromagnétique pour activer un culbuteur verrouillable
DE10211038A1 (de) * 2001-05-15 2002-11-28 Ford Global Tech Dearborn Kipphebelanordnung
EP1264969A2 (fr) * 2001-06-08 2002-12-11 Toyota Jidosha Kabushiki Kaisha Dispositif et méthode de détection de modification de la position d'équilibre d'une soupape dans le cas d'un système d'actionnement électromagnétique de soupape, dispositif et méthode de commande de soupape
DE202004012292U1 (de) * 2004-08-05 2004-12-09 Trw Automotive Gmbh Elektromagnetischer Stellantrieb

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DE19612551A1 (de) * 1996-03-29 1997-10-02 Schaeffler Waelzlager Kg Auf unterschiedliche Hübe für wenigstens ein Gaswechselventil umschaltbarer Ventiltrieb einer Brennkraftmaschine
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Publication number Priority date Publication date Assignee Title
US5544626A (en) * 1995-03-09 1996-08-13 Ford Motor Company Finger follower rocker arm with engine valve deactivator
US5655488A (en) * 1996-07-22 1997-08-12 Eaton Corporation Dual event valve control system
EP0833041A1 (fr) * 1996-09-30 1998-04-01 Eaton Corporation Une commande électromagnétique pour activer un culbuteur verrouillable
DE10211038A1 (de) * 2001-05-15 2002-11-28 Ford Global Tech Dearborn Kipphebelanordnung
EP1264969A2 (fr) * 2001-06-08 2002-12-11 Toyota Jidosha Kabushiki Kaisha Dispositif et méthode de détection de modification de la position d'équilibre d'une soupape dans le cas d'un système d'actionnement électromagnétique de soupape, dispositif et méthode de commande de soupape
DE202004012292U1 (de) * 2004-08-05 2004-12-09 Trw Automotive Gmbh Elektromagnetischer Stellantrieb

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2976617A1 (fr) * 2011-06-15 2012-12-21 Valeo Sys Controle Moteur Sas Controle d'un moteur a combustion interne
FR2979945A1 (fr) * 2011-09-12 2013-03-15 Valeo Sys Controle Moteur Sas Systeme de transmission du mouvement d'au moins deux cames a au moins une soupape
WO2013038088A1 (fr) * 2011-09-12 2013-03-21 Valeo Systemes De Controle Moteur Systeme de transmission du mouvement d'au moins deux cames a au moins une soupape
EP3183438A4 (fr) * 2014-08-18 2018-09-05 Eaton Corporation Actionneur sans contact pour verrous d'ensemble culbuteur

Also Published As

Publication number Publication date
DE102005006056A1 (de) 2006-08-24
US20080006232A1 (en) 2008-01-10
JP2008530424A (ja) 2008-08-07

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