EP0992658A1 - Elektromagnetischer Ventil-Aktuator - Google Patents

Elektromagnetischer Ventil-Aktuator Download PDF

Info

Publication number
EP0992658A1
EP0992658A1 EP99400877A EP99400877A EP0992658A1 EP 0992658 A1 EP0992658 A1 EP 0992658A1 EP 99400877 A EP99400877 A EP 99400877A EP 99400877 A EP99400877 A EP 99400877A EP 0992658 A1 EP0992658 A1 EP 0992658A1
Authority
EP
European Patent Office
Prior art keywords
pallet
valve
core
actuator according
ferromagnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99400877A
Other languages
English (en)
French (fr)
Other versions
EP0992658B1 (de
Inventor
Yves Porcher
Calogero Fiaccabrino
Lucien Donce
Thierry Lanoe
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.)
Johnson Controls Automotive Electronics SAS
Original Assignee
Johnson Controls Automotive Electronics SAS
Sagem SA
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
Priority claimed from FR9812489A external-priority patent/FR2784222B1/fr
Priority claimed from FR9812940A external-priority patent/FR2784712B1/fr
Application filed by Johnson Controls Automotive Electronics SAS, Sagem SA filed Critical Johnson Controls Automotive Electronics SAS
Publication of EP0992658A1 publication Critical patent/EP0992658A1/de
Application granted granted Critical
Publication of EP0992658B1 publication Critical patent/EP0992658B1/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 electromagnetic actuators intended to move in translation a valve to bring it alternately in an open position and a position of closing. It finds a particularly important application in the control of the valves of an internal combustion engine, spark or compression ignition.
  • Actuators have also already been proposed (US-A-4,614,170) electromagnetic to reduce the above drawbacks, having a pallet of ferromagnetic material attached to the valve stem, elastic return means provided for keep the valve at rest in a middle position between the full open and closed position, and means electromagnetic to alternately bring the valves in both positions.
  • Electromagnetic means described in document US-A-4 614 170 have a first electromagnet with ferromagnetic core placed on one side of the pallet and whose excitement attracts the pallet in a direction tending to close the valve and a second electromagnet, placed on the other side of the vane, the excitation of which tends to bring the valve into the full opening position.
  • the valve-spring assembly constitutes an oscillating system excited by alternating periodic power supplies of the electromagnets.
  • the electromagnet acting on the pallet in the direction of the valve opening begins to be energized while the pallet approaches a location where it sticks to the core of the electromagnet.
  • the invention aims in particular to provide an actuator electromagnetic responding better than those previously known to the demands of practice, especially the fact that he has a reduced footprint and connectivity.
  • the electromagnetic means include a single coil mounted on a ferromagnetic circuit of constitution as it presents, in combination with the palette, two stable magnetic flux paths corresponding to one and the other at a low (generally zero) air gap value.
  • One of the configurations corresponds to full opening and the other at closure.
  • the pallet In its initial state, in the middle position, the pallet generally present a position or circuit imbalance magnetic which makes that the direction in which it will be drawn to the first energization of the coil is predetermined. This imbalance can be deliberately caused.
  • the elastic return means consist of two springs each placed on one side of the pallet, these two springs can be such as to give the pallet at rest a position in which the force resulting from the supply of the coil is exercised in a determined direction and that they present the same potential compression energy in closed positions and full opening.
  • An advantageous way to unbalance magnetic forces exerted up and down is to dissymmetry the flows in the central part by playing on a sheet metal notch profile and / or on a pallet profile.
  • the palette may include an axial boss.
  • Another way to create an asymmetry consists in giving to the poles of the ferromagnetic circuit and to the palette a shape such that the surfaces in contact for both stable paths are different.
  • the single coil actuator is more compact than the previous actuators. Its electrical circuit and its control are simpler and less expensive.
  • the actuator 10 shown in Figures 1 to 3 consists of a assembly intended to be mounted on the cylinder head 12 of an engine. he has a housing made up of several parts 14 and 16 stacked and assembled by means not shown, such as screws. These parts are made of non-ferromagnetic material, for light alloy example.
  • the housing can be fixed on the cylinder head 12 by means of a shim 20 also made of non-material ferromagnetic.
  • the actuator comprises a pallet 22 made of material ferromagnetic, advantageously laminated to reduce losses, fixed on a rod 24 for driving the valve 25.
  • a pallet 22 made of material ferromagnetic, advantageously laminated to reduce losses, fixed on a rod 24 for driving the valve 25.
  • the rod 24 can be fixed to the pallet by welding and guided by another ring 26 fixed to a annular extension of the part 16.
  • valve stem 25 is separated from the rod 24. It is guided by a fixed ring to the cylinder head and can turn in it.
  • Two return springs 28a and 28b are provided to maintain the valve at rest in a substantially middle position between the closed position and the full open position.
  • a springs 28a is compressed between a plate 30 fixed to the rod 24 and the extension of part 16.
  • the other spring 28b is compressed between a plate 31 fixed to the valve stem and the bottom valve well in the cylinder head.
  • the distribution game between the lifted rod and the closed valve guarantees tightness.
  • the actuator can just as easily be used with a spring unique working in traction / compression and completed with elastic shock absorber ensuring sealing when closing the valve, as indicated in French patent No. 98 11 670.
  • the rod can then be in one piece with the valve.
  • the housing contains a ferromagnetic material core 36, advantageously laminated, delimiting a ferromagnetic circuit with the pallet, and a coil 38 placed in the core.
  • the core represented can be in two complementary parts, in support one against the other in a plane 40 (figure 2) or one holding.
  • the constituent sheets of each half of the core are in E shape ( Figures 2 and 3).
  • the upper branches 42 engage in the coil 36 which they support by via a mandrel 44.
  • the other two branches of each half delimits a volume of movement of the pallet.
  • the support of the pallet against the bottom 46 of the volume defines the valve fully open position.
  • the ceiling 48 of volume is at a location relative to the valve seat such the air gap is practically zero when the valve is closed.
  • a middle notch 49 corresponding to the position of rest of the pallet 22, can be provided in the chamber, length slightly greater than the thickness of the pallet. Above and below the notch, the volume wall leaves no than the clearance required for travel.
  • the core can as well be in one piece and wound on an automatic machine, which avoids the presence of an air gap and guarantees the precision of the notches 49.
  • the pallet 22 advantageously laminated or made of a material with a high electrical resistivity, has bevelled edges parallel at the poles of the core 36 ( Figure 4).
  • the armature is not magnetically saturated in its range of operation and the flow closes mainly through the armature, thanks to the shape of the pole pieces of the core.
  • the asymmetry of the flow circuit higher compared to the lower flow circuit is accentuated by different inclinations of the upper polar surfaces 80 and lower 82 of the core, each surface of the pallet in gaze of a pole being parallel to it.
  • the pallet 84 has a central boss in the form of bar which increases the asymmetry of the magnetic circuit.
  • the boss 84 When the pallet 22 is in the rest position where it is shown in Figure 5 and that a magnetic flux is generated by the coil 38, this flow closes on its way through the boss 84, as indicated by the arrow f, which reduces the length of the air gaps.
  • this boss When the pallet sticks against the core, extreme high position, this boss is short-circuited and does not weaken the bonding forces. This provision reduces notably the reluctance in the rest position and increases the ease of launching the device.
  • the current flowing through the coil 38 can be controlled by observing the position of the pallet 22 using a position integrated in the device.
  • Current pulses in the coil are supplied at times such as, at the time of the application of force, the speed of the pallet has the same sense that the force applied.
  • the initial force being of a sign given, as a result of the asymmetry, it suffices to apply a pulse only once per period.
  • Figure 6 schematically shows a phase of the launch of the device.
  • the pallet is in a position corresponding to the line L, for which the forces exerted by the springs 28a and 28b are balanced. This position is offset from the position L 'for which the electromagnetic force exerted on the pallet 22 by the field created by the coil 38 is zero.
  • the first current pulse in the coil 38 causes an elongation of the pallet, which then returns with its own period to a position which generally will be still above that indicated by the line L '.
  • the amplitude of the oscillations increases.
  • the monitoring of the position signal makes it possible to know at each instant the last duration T which separates two successive zero crossings.
  • the senor 52 is connected to a computer 50 which controls the supply of the coil 38 by an amplifier 54.
  • This sensor 52 can be carried by the housing 16 and make protruding downwards, so as to detect the approximation of the plate 30, made for this purpose of magnetic material.
  • the computer 50 which can be the engine control computer, determine the position reached by the moving crew.
  • the sensor 52 also allows, by varying the signal that it provides, to determine the instant at which the amplitude of the oscillation of the moving part brings it into its position extreme.
  • the launch can be done in one minimum time thanks to the combination of the position measurement and a pallet setting algorithm which controls the current in the coil so as never to generate forces magnetic braking.
  • the invention is susceptible of numerous variants of production.
  • the springs 28a and 28b can be placed by example one inside the other to reduce the size of the housing.
  • Each coil can consist of a number N of windings greater than 1 (two or three for example) supplied in parallel which divides by N the resistance and increases the total current maximum and what divides the inductance by N. Electric inertia is decreased.
  • the dynamics of the engine system are improved.
  • the cutting a winding wire does not disable the device.
  • the dynamics are improved: we can vary the magnetic field faster, because the ratio inductance / resistance is unchanged while the resistance of each winding is a fraction of the resistance of a coil unique: the maximum current value is higher and, the inductance being weaker, the dynamics are faster.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electromagnets (AREA)
EP99400877A 1998-10-06 1999-04-09 Elektromagnetischer Ventil-Aktuator Expired - Lifetime EP0992658B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9812489 1998-10-06
FR9812489A FR2784222B1 (fr) 1998-10-06 1998-10-06 Actionneur electromagnetique de soupape
FR9812940 1998-10-15
FR9812940A FR2784712B1 (fr) 1998-10-15 1998-10-15 Procede et dispositif d'actionnement electromagnetique de soupape

Publications (2)

Publication Number Publication Date
EP0992658A1 true EP0992658A1 (de) 2000-04-12
EP0992658B1 EP0992658B1 (de) 2003-05-21

Family

ID=26234581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99400877A Expired - Lifetime EP0992658B1 (de) 1998-10-06 1999-04-09 Elektromagnetischer Ventil-Aktuator

Country Status (6)

Country Link
US (1) US6651954B1 (de)
EP (1) EP0992658B1 (de)
JP (1) JP2004506826A (de)
KR (1) KR20010080034A (de)
DE (1) DE69908057T2 (de)
WO (1) WO2000020731A1 (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808375A1 (fr) * 2000-04-27 2001-11-02 Sagem Actionneur electromagnetique de soupape, de type monobobine
EP1160423A2 (de) * 2000-06-02 2001-12-05 Nissan Motor Co., Ltd. Ventilsteuerungssystem für elektromagnetische Ventile
FR2812121A1 (fr) * 2000-07-21 2002-01-25 Renault Actionneur lineaire electromagnetique de soupape comportant une seule bobine
FR2818432A1 (fr) * 2000-12-20 2002-06-21 Sagem Actionneur electromagnetique de soupape de moteur a combustion interne
EP1162349A3 (de) * 2000-06-06 2003-05-14 Nissan Motor Co., Ltd. Vorrichtung und Verfahren zur Steuerung einer elektromagnetisch betriebenen Ventilanordnung
US6724606B2 (en) 2002-03-08 2004-04-20 Joseph B. Seale Single-winding dual-latching valve actuation solenoid
FR2849466A1 (fr) 2002-12-27 2004-07-02 Renault Sa Ationneur lineaire de soupape comportant un aimant mobile dans un entrefer magnetique
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
CN112178213A (zh) * 2020-09-30 2021-01-05 赵鑫 高温高压环境电磁阀

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2809487B1 (fr) * 2000-05-23 2002-08-16 Sagem Capteur de position axiale pour une tige mobile axialement et actionneur electromagnetique de soupape qui en est equipe
US8083206B2 (en) * 2008-07-08 2011-12-27 Caterpillar Inc. Precision ground armature assembly for solenoid actuator and fuel injector using same
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US9502167B1 (en) 2015-11-18 2016-11-22 Hamilton Sundstrand Corporation High temperature electromagnetic actuator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19518056A1 (de) * 1995-05-17 1996-11-21 Fev Motorentech Gmbh & Co Kg Einrichtung zur Steuerung der Ankerbewegung einer elektromagnetischen Schaltanordnung und Verfahren zur Ansteuerung
DE19718038C1 (de) * 1997-04-29 1998-05-07 Daimler Benz Ag Elektromagnetischer Aktuator für Gaswechselventile einer Brennkraftmaschine
JPH10196328A (ja) * 1997-01-10 1998-07-28 Satoshi Yamada 磁力で開閉するエンジンのバルブ
DE19712064A1 (de) * 1997-03-24 1998-10-01 Braunewell Markus Elektromagnetischer Antrieb

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GB779364A (en) * 1954-09-30 1957-07-17 Welding Engineers Treatment of plastic materials
IL54107A (en) * 1978-02-22 1981-06-29 Yeda Res & Dev Electromagnetic linear motion devices
CA2092998C (en) * 1991-07-30 1995-12-05 J. David Schwitalla Variable gain servo assist
US5548263A (en) * 1992-10-05 1996-08-20 Aura Systems, Inc. Electromagnetically actuated valve
US5515818A (en) * 1993-12-15 1996-05-14 Machine Research Corporation Of Chicago Electromechanical variable valve actuator
US5636601A (en) * 1994-06-15 1997-06-10 Honda Giken Kogyo Kabushiki Kaisha Energization control method, and electromagnetic control system in electromagnetic driving device
JP3186462B2 (ja) * 1994-09-22 2001-07-11 トヨタ自動車株式会社 内燃機関の電磁式弁駆動装置
US5730091A (en) * 1996-11-12 1998-03-24 Ford Global Technologies, Inc. Soft landing electromechanically actuated engine valve
US5961097A (en) * 1996-12-17 1999-10-05 Caterpillar Inc. Electromagnetically actuated valve with thermal compensation
DE29712502U1 (de) * 1997-07-15 1997-09-18 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Elektromagnetischer Aktuator mit Gehäuse
FR2784712B1 (fr) * 1998-10-15 2001-09-14 Sagem Procede et dispositif d'actionnement electromagnetique de soupape
FR2808375B1 (fr) * 2000-04-27 2002-09-06 Sagem Actionneur electromagnetique de soupape, de type monobobine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19518056A1 (de) * 1995-05-17 1996-11-21 Fev Motorentech Gmbh & Co Kg Einrichtung zur Steuerung der Ankerbewegung einer elektromagnetischen Schaltanordnung und Verfahren zur Ansteuerung
JPH10196328A (ja) * 1997-01-10 1998-07-28 Satoshi Yamada 磁力で開閉するエンジンのバルブ
DE19712064A1 (de) * 1997-03-24 1998-10-01 Braunewell Markus Elektromagnetischer Antrieb
DE19718038C1 (de) * 1997-04-29 1998-05-07 Daimler Benz Ag Elektromagnetischer Aktuator für Gaswechselventile einer Brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 098, no. 012 31 October 1998 (1998-10-31) *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808375A1 (fr) * 2000-04-27 2001-11-02 Sagem Actionneur electromagnetique de soupape, de type monobobine
EP1160423A2 (de) * 2000-06-02 2001-12-05 Nissan Motor Co., Ltd. Ventilsteuerungssystem für elektromagnetische Ventile
EP1160423A3 (de) * 2000-06-02 2003-05-14 Nissan Motor Co., Ltd. Ventilsteuerungssystem für elektromagnetische Ventile
EP1162349A3 (de) * 2000-06-06 2003-05-14 Nissan Motor Co., Ltd. Vorrichtung und Verfahren zur Steuerung einer elektromagnetisch betriebenen Ventilanordnung
FR2812121A1 (fr) * 2000-07-21 2002-01-25 Renault Actionneur lineaire electromagnetique de soupape comportant une seule bobine
FR2818432A1 (fr) * 2000-12-20 2002-06-21 Sagem Actionneur electromagnetique de soupape de moteur a combustion interne
US6724606B2 (en) 2002-03-08 2004-04-20 Joseph B. Seale Single-winding dual-latching valve actuation solenoid
FR2849466A1 (fr) 2002-12-27 2004-07-02 Renault Sa Ationneur lineaire de soupape comportant un aimant mobile dans un entrefer magnetique
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
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US11421875B2 (en) 2012-09-15 2022-08-23 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
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
CN112178213A (zh) * 2020-09-30 2021-01-05 赵鑫 高温高压环境电磁阀
CN112178213B (zh) * 2020-09-30 2022-05-06 扬州苏油油成商贸实业有限公司 高温高压环境电磁阀

Also Published As

Publication number Publication date
JP2004506826A (ja) 2004-03-04
US6651954B1 (en) 2003-11-25
WO2000020731A9 (fr) 2003-03-06
KR20010080034A (ko) 2001-08-22
DE69908057D1 (de) 2003-06-26
EP0992658B1 (de) 2003-05-21
WO2000020731A1 (fr) 2000-04-13
DE69908057T2 (de) 2004-03-18

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