EP1169552B1 - Elktromagnetische ventilsteuerungseinrichtung - Google Patents

Elktromagnetische ventilsteuerungseinrichtung Download PDF

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Publication number
EP1169552B1
EP1169552B1 EP00917161A EP00917161A EP1169552B1 EP 1169552 B1 EP1169552 B1 EP 1169552B1 EP 00917161 A EP00917161 A EP 00917161A EP 00917161 A EP00917161 A EP 00917161A EP 1169552 B1 EP1169552 B1 EP 1169552B1
Authority
EP
European Patent Office
Prior art keywords
actuators
valves
ferromagnetic
armature
actuator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00917161A
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English (en)
French (fr)
Other versions
EP1169552A1 (de
Inventor
Calogero Fiaccabrino
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.)
Valeo Electrification SAS
Original Assignee
Valeo Systemes de Controle Moteur SAS
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Publication date
Application filed by Valeo Systemes de Controle Moteur SAS filed Critical Valeo Systemes de Controle Moteur SAS
Publication of EP1169552A1 publication Critical patent/EP1169552A1/de
Application granted granted Critical
Publication of EP1169552B1 publication Critical patent/EP1169552B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means

Definitions

  • the invention relates to axially linear displacement control devices comprising actuators in number equal to that of the valves, each actuator having a pallet of ferro-magnetic material attached to a valve push rod movable in a housing of the actuator by electromagnetic means having at least one coil mounted on a ferromagnetic circuit and having at least one return spring, one end of which bears against the rod.
  • Devices of this kind may have two opposing return springs (US Patent 4,614,170 or FR 98 12489 patent application) or a single spring alternately working in traction and compression (patent application FR 98 11670).
  • the electromagnetic means of an actuator may comprise two coils whose excitation tends to move the pallet in opposite directions (DE 197 19 299). They can also - and this solution will generally be preferable for reasons of cost, reduction of space and reduction of the number of electrical connections - use a single coil whose ferro-magnetic circuit has a constitution such that it offers, in combination with the pallet, two stable paths of magnetic flux corresponding to the opening and closing states of the valve, respectively (FR 98 application 12489 and corresponding EP application).
  • Such a device comprises as many actuators as valves.
  • eight actuators must be placed side by side.
  • the power of an actuator is limited, given thickness, and this thickness itself is limited because the The distribution of the actuators must be the same as that of the valves.
  • the power that can be achieved with individual actuators may be insufficient, at least for the exhaust valves that are the most demanding at high engine load because of the back pressure in the engine. the combustion chamber.
  • the need for an electrical power connector per actuator is expensive and reduces reliability.
  • the invention aims in particular to provide a valve control device for two-valve engine of the same type per cylinder of reduced size and increased reliability.
  • the invention proposes for this purpose a device in which the ferro-magnetic circuits of two actuators assigned to two valves of the same type of the same cylinder are contained in a common housing and the coils of the two actuators can consequently be supplied by the intermediate of the same power connector.
  • This single connector can moreover be used to transmit measurement signals from a position sensor of the pallet to the outside.
  • the invention proposes a device in which the ferro-magnetic circuits of two actuators assigned to two valves of the same type of the same cylinder are merged. Not only does this arrangement reduce the space requirement and therefore makes it possible to locally increase the section of iron by taking advantage of the free space between two cylinders, but it also makes it possible to increase the section of the common part which benefits entirely to the control of only one of the valves when the other remains at rest, for example at the start of the oscillation of the valves.
  • the invention is particularly easy to implement in the case of single-coil actuators for which one can also place sensors of the axial position of the rod and the pallet, detecting the position of a magnet fixed to the rod, in an area where the magnetic flux created by the coil is still very small and does not disrupt the operation through the symmetry of the planar lines of force.
  • Valve actuators are electromagnetic control and can be a single coil, as will be described later, or two coils, such as that described in the patent application FR 98 11670 already mentioned.
  • the device partially shown in Figure 1 comprises a common housing 16 of non-magnetic material, for example light alloy, retaining the ferro-magnetic circuits 54 of two adjacent actuators assigned to the same cylinder on the cylinder head of the engine.
  • the housing is pierced with holes 56 of fixing screw passage.
  • the ferro-magnetic circuits will generally be disjointed to allow the individual control of the two valves.
  • the four coils of the same pair can be powered by a single connector 58 whose general constitution can be either conventional or advantageously that described in the French patent application of the same day as the present application, entitled “Connector power and actuator supply device comprising such connectors "of the applicant, however doubled.
  • These connectors can be provided to also transfer the output signals of position sensors. This arrangement requires less space than individual mounting of the actuators and halves the number of connectors.
  • the magnetic circuits of two adjacent actuators can be fused and have the constitution shown in Figure 2, each complete actuator having for example the elements shown in Figure 3.
  • the vertical symmetry planes of the two coils are farther apart than the vertical symmetry planes of the two palettes so that the flows generated by each coil interfere with each other as little as possible.
  • the actuator then has a pallet 22 of prismatic shape, made of ferro-magnetic material, fixed on a rod 24 for driving the valve 50.
  • Two return springs 28a and 28b are provided to maintain the valve at rest in a substantially median position between the closed position and the fully open position.
  • One of the springs 28a is compressed between a plate 30 fixed to the rod 24 and an extension of the housing 16.
  • the other spring 28b is compressed between a plate 31 fixed to the valve stem and the bottom of the valve well formed in the cylinder head 12.
  • the fixed ferro-magnetic circuit common to the two actuators has a cross section passing through the axis of the two E-shaped pallets with a middle branch 60 and two outer branches 62.
  • the lateral branches have a smaller width than the branch median which benefits from the fusion of the two magnetic circuits.
  • the outer branches can be relatively wide because of the spacing between two cylinders.
  • each pallet 22 has beveled edges parallel to the poles of the associated magnetic circuit.
  • the pallet has a central bar-shaped boss which creates or increases an asymmetry of the magnetic circuit and ensures that the initial direction of movement of the pallet from its rest position will be upward.
  • the presence of the boss reduces the initial reluctance of the circuit because it reduces the air gap at rest, as shown by the arrows schematically magnetic flux lines.
  • the currents flowing through the two coils carried by the same ferromagnetic circuit are in opposite directions.
  • the current flowing through each coil can be controlled by a computer (not shown) receiving a signal indicating the position of the pallet of a sensor 24. It can be in particular a Hall effect sensor 64 sensitive to a magnetic pad carried by the rod 24.
  • the path of the lines of force of the magnetic flux is such that they do not disturb the measurement by a sensor placed in the oplan of FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Electromagnets (AREA)

Claims (10)

  1. Steuervorrichtung zur linearen Verstellung von Ventilen eines Motors, umfassend Aktuatoren, deren Anzahl gleich der der Ventile ist und die unabhängig voneinander gesteuert werden, wobei jeder Aktuator einen Anker (22) aus ferromagnetischem Material hat, der an einer Ventilstößelstange befestigt ist, die in einem Gehäuse des Aktuators durch elektromagnetische Mittel verschoben werden kann, die mindestens eine Spule enthalten, die an einem ferromagnetischen Kreis angebracht ist, und mindestens eine Rückstellfeder enthalten, deren eines Ende an der Stange anliegt, dadurch gekennzeichnet, dass die ferromagnetischen Kreise von zwei Aktuatoren, die für zwei gleichartige Ventile ein und desselben Zylinders bestimmt sind, zusammengeschlossen sind.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jeder Aktuator eine einzige Spule (42) hat.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der zwei Aktuatoren gemeinsame, ortsfeste ferromagnetische Kreis in einer durch die Achse der beiden Anker verlaufenden Ebene einen Querschnitt in Form eines E mit einem mittleren Schenkel (60) und zwei äußeren Schenkeln (62) hat.
  4. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Ränder jedes Ankers (22) parallel zu den Polen des dazugehörigen magnetischen Kreises abgeschrägt sind.
  5. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass jeder Anker (22) einen zentralen Vorsprung in Form einer Leiste aufweist, die eine Asymmetrie des magnetischen Kreises erzeugt oder vergrößert, um eine anfängliche Bewegungsrichtung des Ankers aus seiner Ruhestellung heraus vorzugeben.
  6. Vorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die vertikalen Symmetrieebenen von zwei Spulen benachbarter Aktuatoren weiter voneinander entfernt sind als die vertikalen Symmetrieebenen der beiden Anker.
  7. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Ströme, die die beiden von ein und demselben ferromagnetischen Kreis getragenen Spulen durchlaufen, entgegengesetzter Richtung sind.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die ferromagnetischen Kreise eines Paares von zwei Aktuatoren, die für zwei gleichartige Ventile ein und desselben Zylinders bestimmt sind, in ein und demselben Gehäuse enthalten sind.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Spulen der beiden Aktuatoren über ein und dasselbe Verbindungselement (58) gespeist werden.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass das Verbindungselement ebenso zur Übertragung von aus einem Lagesensor des Ankers (64) stammenden Messsignalen verwendet wird.
EP00917161A 1999-04-09 2000-04-07 Elktromagnetische ventilsteuerungseinrichtung Expired - Lifetime EP1169552B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9904472 1999-04-09
FR9904472A FR2792031B1 (fr) 1999-04-09 1999-04-09 Dispositif de commande electromagnetique de soupapes
PCT/FR2000/000896 WO2000061922A1 (fr) 1999-04-09 2000-04-07 Dispositif de commande electromagnetique de soupapes

Publications (2)

Publication Number Publication Date
EP1169552A1 EP1169552A1 (de) 2002-01-09
EP1169552B1 true EP1169552B1 (de) 2006-11-02

Family

ID=9544233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00917161A Expired - Lifetime EP1169552B1 (de) 1999-04-09 2000-04-07 Elktromagnetische ventilsteuerungseinrichtung

Country Status (9)

Country Link
US (1) US6768406B1 (de)
EP (1) EP1169552B1 (de)
JP (1) JP2002541674A (de)
KR (1) KR100714387B1 (de)
AT (1) ATE344380T1 (de)
DE (1) DE60031660T2 (de)
ES (1) ES2273677T3 (de)
FR (1) FR2792031B1 (de)
WO (1) WO2000061922A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2827007B1 (fr) * 2001-07-06 2003-10-31 Peugeot Citroen Automobiles Sa Dispositif de commande a electroaimant, notamment pour une soupape de moteur a combustion interne
FR2870563B1 (fr) 2004-05-19 2006-06-30 Peugeot Citroen Automobiles Sa Dispositif d'actionnement de soupapes
DE602007010448D1 (de) * 2006-05-12 2010-12-23 Parker Hannifin Corp Verschiebungsmesser
US20080266038A1 (en) * 2007-04-24 2008-10-30 Eaton Corporation Solenoid assembly
DE102007052253B4 (de) * 2007-11-02 2023-07-06 Mercedes-Benz Group AG Ventiltriebvorrichtung
DE102008036462B4 (de) * 2008-08-05 2023-12-14 Mercedes-Benz Group AG Ventiltriebvorrichtung
DE202008015980U1 (de) * 2008-12-03 2010-04-29 Eto Magnetic Gmbh Elektromagnetische Aktuatorvorrichtung
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
EP2868970B1 (de) 2013-10-29 2020-04-22 Honeywell Technologies Sarl Regelungsvorrichtung
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
DE102017121949A1 (de) * 2017-09-21 2019-03-21 Kendrion (Villingen) Gmbh Stellvorrichtung, sowie Kraftfahrzeug mit einer Stellvorrichtung
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
CN117307286A (zh) * 2023-11-02 2023-12-29 广州汽车集团股份有限公司 配气系统及车辆

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US4779582A (en) * 1987-08-12 1988-10-25 General Motors Corporation Bistable electromechanical valve actuator
US5548263A (en) * 1992-10-05 1996-08-20 Aura Systems, Inc. Electromagnetically actuated valve
DE19506566A1 (de) * 1995-02-24 1996-08-29 Bayerische Motoren Werke Ag Elektromagnetische Hubventil-Betätigungsvorrichtung
DE19518056B4 (de) * 1995-05-17 2005-04-07 Fev Motorentechnik Gmbh Einrichtung zur Steuerung der Ankerbewegung einer elektromagnetischen Schaltanordnung und Verfahren zur Ansteuerung
DE19719299C1 (de) * 1997-05-07 1998-08-20 Daimler Benz Ag Betätigungseinrichtung für Gaswechselventile einer Brennkraftmaschine mit elektromagnetischen Aktuatoren

Also Published As

Publication number Publication date
FR2792031B1 (fr) 2001-06-08
US6768406B1 (en) 2004-07-27
WO2000061922A1 (fr) 2000-10-19
KR20010110727A (ko) 2001-12-13
ATE344380T1 (de) 2006-11-15
FR2792031A1 (fr) 2000-10-13
DE60031660D1 (de) 2006-12-14
DE60031660T2 (de) 2007-08-30
KR100714387B1 (ko) 2007-05-07
EP1169552A1 (de) 2002-01-09
JP2002541674A (ja) 2002-12-03
ES2273677T3 (es) 2007-05-16

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