EP0870905B1 - Procédé de contrôle de courant pour une soupape à actionnement électromagnétique de moteur à combustion interne - Google Patents

Procédé de contrôle de courant pour une soupape à actionnement électromagnétique de moteur à combustion interne Download PDF

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Publication number
EP0870905B1
EP0870905B1 EP98100651A EP98100651A EP0870905B1 EP 0870905 B1 EP0870905 B1 EP 0870905B1 EP 98100651 A EP98100651 A EP 98100651A EP 98100651 A EP98100651 A EP 98100651A EP 0870905 B1 EP0870905 B1 EP 0870905B1
Authority
EP
European Patent Office
Prior art keywords
armature
magnet coil
current level
distance
current
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
EP98100651A
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German (de)
English (en)
Other versions
EP0870905A1 (fr
Inventor
Michael Bayer
Rudolph Brandl
Marcus Plitz
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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
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Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0870905A1 publication Critical patent/EP0870905A1/fr
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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 a current control method for an electromagnetically actuated lift valve of an internal combustion engine, which is oscillatingly moved by an armature plate arranged between alternately energized solenoid coils, against the force of a return spring, starting from the first end position of the armature, in which the armature is at the first is applied with a holding current, the low holding current of the first solenoid is first switched off, and then the second solenoid is first subjected to a high catching current and then the holding current, in order to first attract the armature and then the one connected to the solenoid Hold anchor.
  • a current control method according to the preamble of claim 1 goes for example also from EP-A-662697.
  • EP-A-408963 discloses a method for controlling the armature movement Switching magnet, in which after an increase in the current in the second Magnetic coil to a catch value from a point in time before the impact of the Magnet armature lies on the pole face, the current is regulated linearly to a value, which is lower than the catch value in order to be able to determine the impact of the anchor.
  • the energy consumption or Electricity consumption can be reduced. Noise reduction requirements are not provided here.
  • the object of the present invention is to provide a remedial measure for this problem.
  • the solution to this problem is characterized in that in the second magnet coil, a change is made to a lower landing current level than the catching current level when the armature is still spaced from this second magnet coil, the distance of the armature from the second magnet coil being measured and the switchover from the catching current level to the touch-down current level takes place as a function of the size of this measured distance.
  • the suitably guided armature (and of course the internal combustion engine lift valve mechanically connected to it) starts to move under the influence of the force of the return spring, namely towards the second solenoid.
  • the spring force of the second return spring is effective, so that additional forces have to be applied by the second magnet coil in order to attract the armature.
  • the second solenoid coil is excited with a relatively high current, the so-called capture current.
  • the holding current level is labeled I H and the catching current level is labeled I F.
  • the holding current I H flows in the first magnet coil and is switched off at time t 1 . As described, this causes the armature to move and cover the distance s over time t.
  • the armature is approximately in the middle between the two solenoids, i. h He has covered half the distance s h .
  • the second solenoid coil is initially subjected to the catch current level I F , which is reached only after a delay due to the magnetic conditions.
  • the armature After the armature has covered the full distance s v and is therefore in contact with the second magnet coil, it is possible to transition from the catch current level I F to the holding current level I H in this second magnet coil, which takes place here at time t 6 . Due to the magnetic conditions in the magnet coil, the value I H of the holding current is only reached after a delay. The time t 6 is later than the time t 5 at which the armature first hits the solenoid. This ensures that the armature is held securely on the magnetic coil, even if it bounces off briefly after the first impact or moves back a minimal distance.
  • the respective distance of the armature from the second magnet coil can be measured over time t.
  • the changeover from the catch current level I F to the landing current level I A preferably takes place as a function of the size of this distance, in particular when the armature is still more than 5% of the total distance s v between the two magnet coils away from the magnet coil is.
  • the difference (s v - s a ) is therefore more than 5% of the total distance s v .
  • the touchdown current level I A can be anywhere in the range between the catch current level I F and the holding current level I H , but should achieve the desired effect, namely with regard to a soft impact or touchdown of the armature on the second solenoid are significantly below the catch current level I F.
  • the boost current level I A is preferably in the order of magnitude of the single to double holding current level I H.
  • this point in time t 2 is the distance s h , that is to say when the anchor is approximately halfway; more precisely by 60% of the distance between the two solenoids from the second solenoid.
  • this, as well as a large number of further details, can be designed quite differently from the exemplary embodiment shown, without leaving the content of the claims.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Magnetically Actuated Valves (AREA)

Claims (4)

  1. Procédé de commande de courant d'une soupape à commande électromagnétique d'un moteur à combustion interne, cette soupape étant déplacée en mouvement oscillant contre la force d'un ressort de rappel, par une plaque d'induit installée entre deux bobines électromagnétiques alimentées alternativement en courant, selon lequel partant de la première position de fin de course de l'induit dans laquelle celui-ci est appliqué contre la première bobine électromagnétique alimentée par un courant de maintien (IH), on coupe tout d'abord le courant de maintien (IH) d'intensité relativement faible dans la première bobine,
    et ensuite on alimente la seconde bobine électromagnétique tout d'abord avec un courant d'accrochage (IF) d'intensité relativement élevée et ensuite avec le courant de maintien (IH),
    pour tout d'abord attirer l'induit puis maintenir l'induit appliqué contre la bobine électromagnétique,
    caractérisé en ce que
    dans la seconde bobine électromagnétique, on commute sur un niveau de courant d'appui (IA) plus faible que le niveau de courant d'accrochage (IF) lorsque l'induit est encore distant de la première bobine électromagnétique, et
    on mesure la distance (SV - SA) de l'induit par rapport à la seconde bobine électromagnétique et on commute du niveau de courant d'accrochage (IF) au niveau de courant d'appui (IA) en fonction de cette distance mesurée (SV-SA).
  2. Procédé de commande de courant selon la revendication 1,
    caractérisé en ce que
    on commute du niveau de courant d'accrochage élevé (IF) au niveau de courant d'appui faible (IA) dans la seconde bobine électromagnétique aussi longtemps que l'induit est encore à plus de 5 % de la distance (Sv) (comprise entre les deux bobines électromagnétiques) par rapport à la seconde bobine électromagnétique.
  3. Procédé de commande de courant selon l'une des revendications précédentes,
    caractérisé en ce que
    le niveau de courant (IA) est de l'ordre de grandeur du niveau de courant de maintien (IH) jusqu'au double de ce niveau.
  4. Procédé de commande de courant selon l'une des revendications précédentes,
    caractérisé en ce que
    on applique le courant d'accrochage (IF) à la seconde bobine électromagnétique déjà lorsque l'induit est encore distant de la seconde bobine électromagnétique à plus de 40 % de la distance (Sv) (distance comprise entre les deux bobines électromagnétiques).
EP98100651A 1997-04-08 1998-01-15 Procédé de contrôle de courant pour une soupape à actionnement électromagnétique de moteur à combustion interne Expired - Lifetime EP0870905B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19714518A DE19714518A1 (de) 1997-04-08 1997-04-08 Stromsteuerverfahren für ein elektromagnetisch betätigtes Hubventil einer Brennkraftmaschine
DE19714518 1997-04-08

Publications (2)

Publication Number Publication Date
EP0870905A1 EP0870905A1 (fr) 1998-10-14
EP0870905B1 true EP0870905B1 (fr) 2002-09-04

Family

ID=7825820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98100651A Expired - Lifetime EP0870905B1 (fr) 1997-04-08 1998-01-15 Procédé de contrôle de courant pour une soupape à actionnement électromagnétique de moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP0870905B1 (fr)
JP (1) JPH10288015A (fr)
DE (2) DE19714518A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3846070B2 (ja) 1998-10-29 2006-11-15 トヨタ自動車株式会社 電磁駆動弁の制御装置
DE19852169C1 (de) * 1998-11-12 2000-03-09 Daimler Chrysler Ag Verfahren zum Betrieb eines Aktors zur elektromagnetischen Ventilsteuerung bei Brennkraftmaschinen
DE19860272B4 (de) 1998-12-24 2005-03-10 Conti Temic Microelectronic Verfahren und Vorrichtung zum Vermindern der Geräuschentwicklung bei elektromagnetisch betätigten Vorrichtungen
DE10012988A1 (de) * 2000-03-16 2001-09-20 Bayerische Motoren Werke Ag Verfahren zum Betrieb eines elektromagnetischen Aktors
US7165518B2 (en) 2005-02-01 2007-01-23 Ford Global Technologies, Llc Adjusting valve lash for an engine with electrically actuated valves
US7204210B2 (en) 2005-02-01 2007-04-17 Ford Global Technologies, Llc Reducing power consumption and noise of electrically actuated valves
DE102005012184B4 (de) * 2005-03-14 2007-04-12 Schatz, Oskar, Dr. Verfahren zum Betrieb einer elektromagnetischen Hochgeschwindigkeitsstelleinrichtung und zu dessen Anwendung geeignete Stelleinrichtung

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611220A1 (de) * 1985-04-25 1987-01-02 Kloeckner Wolfgang Dr Verfahren und vorrichtung zum betreiben einer brennkraftmaschine
DE3733704A1 (de) * 1986-10-13 1988-04-14 Meyer Hans Wilhelm Verfahren zum betrieb einer brennkraftmaschine
DE3722527A1 (de) * 1987-07-08 1989-01-19 Vdo Schindling Verfahren und schaltungsanordnung zur ansteuerung eines einspritzventils
DE3826978A1 (de) 1988-08-09 1990-02-15 Meyer Hans Wilhelm Elektromagnetisch betaetigbare stellvorrichtung
FR2714998B1 (fr) * 1994-01-07 1996-02-09 Peugeot Procédé de commande d'un actionneur électromagnétique bistable et dispositif pour sa mise en Óoeuvre.
DE4414609B4 (de) * 1994-04-27 2005-12-22 Robert Bosch Gmbh Einrichtung zur Ansteuerung eines Verbrauchers
DE4433209C2 (de) * 1994-09-17 2000-02-03 Mtu Friedrichshafen Gmbh Einrichtung zur Erkennung des Ankeraufprallzeitpunktes bei Entstromung eines Magnetventils
DE4434684A1 (de) * 1994-09-28 1996-04-04 Fev Motorentech Gmbh & Co Kg Verfahren zur Steuerung der Ankerbewegung einer elektromagnetischen Schaltanordnung
JP3134724B2 (ja) * 1995-02-15 2001-02-13 トヨタ自動車株式会社 内燃機関の弁駆動装置
DE19521078B4 (de) * 1995-06-09 2005-02-10 Fev Motorentechnik Gmbh Energiesparende elektromagnetische Schaltanordnung
DE19526683A1 (de) * 1995-07-21 1997-01-23 Fev Motorentech Gmbh & Co Kg Verfahren zur Erkennung des Ankerauftreffens an einem elektromagnetisch betätigbaren Stellmittel
DE19529151A1 (de) * 1995-08-08 1997-02-13 Fev Motorentech Gmbh & Co Kg Verfahren zum Schalten eines elektromagnetischen Aktuators
DE19530121A1 (de) * 1995-08-16 1997-02-20 Fev Motorentech Gmbh & Co Kg Verfahren zur Reduzierung der Auftreffgeschwindigkeit eines Ankers an einem elektromagnetischen Aktuator
DE19530394B4 (de) * 1995-08-18 2005-12-01 Fev Motorentechnik Gmbh Verfahren zur Funktionsüberwachung eines über einen elektromagnetischen Aktuator betätigten Gaswechselventils an einer Kolbenbrennkraftmaschine
DE19530798A1 (de) * 1995-08-22 1997-02-27 Fev Motorentech Gmbh & Co Kg Verfahren zur Erkennung des Auftreffens eines Ankers auf einen Elektromagneten an einer elektromagnetischen Schaltanordnung
DE19531435B4 (de) * 1995-08-26 2006-11-16 Fev Motorentechnik Gmbh Verfahren zur Anpassung der Steuerung eines elektromagnetischen Aktuators an betriebsbedingte Veränderungen
DE19533452B4 (de) * 1995-09-09 2005-02-17 Fev Motorentechnik Gmbh Verfahren zur Anpassung einer Steuerung für einen elektromagnetischen Aktuator
DE19617264A1 (de) * 1995-09-23 1997-03-27 Bosch Gmbh Robert Vorrichtung und Verfahren zur Ansteuerung eines elektromagnetischen Verbrauchers
GB2306679B (en) * 1995-11-03 2000-05-17 Motorola Ltd Method for detecting closure of a solenoid coil

Also Published As

Publication number Publication date
EP0870905A1 (fr) 1998-10-14
DE59805369D1 (de) 2002-10-10
JPH10288015A (ja) 1998-10-27
DE19714518A1 (de) 1998-10-15

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