EP1457645A1 - Mécanisme de commande de soupapes pour moteur à combustion interne - Google Patents

Mécanisme de commande de soupapes pour moteur à combustion interne Download PDF

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Publication number
EP1457645A1
EP1457645A1 EP04003090A EP04003090A EP1457645A1 EP 1457645 A1 EP1457645 A1 EP 1457645A1 EP 04003090 A EP04003090 A EP 04003090A EP 04003090 A EP04003090 A EP 04003090A EP 1457645 A1 EP1457645 A1 EP 1457645A1
Authority
EP
European Patent Office
Prior art keywords
valve
crankshaft angle
stroke
local
stroke curve
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
EP04003090A
Other languages
German (de)
English (en)
Other versions
EP1457645B1 (fr
Inventor
Till Dr. Scheffler
Horst Dr. Kellerer
Axel Knaut
Rudolf Dr. Seethaler
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
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1457645A1 publication Critical patent/EP1457645A1/fr
Application granted granted Critical
Publication of EP1457645B1 publication Critical patent/EP1457645B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • 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
    • F01L9/22—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by rotary motors
    • 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
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F01L2009/2125—Shaft and armature construction
    • F01L2009/2126—Arrangements for amplifying the armature stroke
    • 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
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F01L2009/2132—Biasing means
    • F01L2009/2134—Helical springs
    • F01L2009/2136—Two opposed springs for intermediate resting position of the armature
    • 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
    • F01L2201/00—Electronic control systems; Apparatus or methods therefor

Definitions

  • the present invention relates to an electrically controlled valve train for a Internal combustion engine according to the preamble of claim 1.
  • the camshaft is mechanically over a timing chain or timing belt driven by the crankshaft.
  • Valves of the individual cylinders but at least the intake valves and the To individually control the exhaust valves of the individual cylinders.
  • actuator unit This is possible with an electromagnetic valve train. This is every valve or each valve group of a cylinder is assigned an "actuator unit".
  • first type are an opening and a valve or a valve group Lock magnet assigned.
  • the valves can be energized by the solenoids be axially displaced, i.e. be opened or closed.
  • Valve drives are difficult to control in terms of control technology.
  • another type is a valve group or a valve group which can be pivoted back and forth Assigned actuation cams.
  • the actuation cam is activated by a electric swivel motor pivoted to support.
  • the object of the invention is an electric valve train with a swivel actuator and to create a control electronics that the best possible adaptation of the Opening / closing behavior to the current operating state of the Internal combustion engine allows.
  • the invention is based on a valve train with a swivel actuator which an electric motor or by another actuator, e.g. a hydraulic Actuator is operated.
  • the swivel actuator is for actuating one or more Valves provided.
  • the essence of the invention is control electronics for Control of the electric motor.
  • the electric motor or the cam is driven by the Control electronics controlled so that the valve according to one Stroke curve moves that optimally the current operating state of the engine, in particular adapted to the thermodynamic conditions in the engine is.
  • the valve runs through according to the control of the electric motor Control electronics one between an opening crank angle and one Closing crank angle lying stroke curve, which depends on current operating state of the internal combustion engine from the electronics a saved family of stroke curves selected or dependent from the current operating state according to a predetermined one "Educational regulation" is formed.
  • the one to be traversed by the valve Stroke curve is dependent on the current operating state of the Internal combustion engine can be modified by the control logic such that the position of the Center of gravity of the area under the stroke curve in relation to the Crankshaft angle is changeable without the Opening crankshaft angle or closing crankshaft angle can be shifted got to.
  • Control electronics can either be a family of such stroke curves can be stored or, alternatively, according to a predetermined Control logic depending on a large number of current operating parameters of the Internal combustion engine can be "created" a currently optimal stroke.
  • Different stroke curve curves can preferably be generated with the control electronics, that differ from each other in a variety of properties can.
  • Individual stroke curves can differ, for example distinguish their number of local and global extremes.
  • stroke curves can are generated, which differ in terms of their opening and / or Distinguish closing gradients.
  • stroke curves can be generated, which differ in terms of their opening and / or Distinguish closing gradients.
  • stroke curves are generated, which are related distinguish their opening and / or closing crankshaft angle.
  • Can also Stroke curves with different opening strokes are generated, etc.
  • different stroke curve curves can be generated Form with regard to the location of their centroids in relation to the Distinguish crankshaft angles, i.e. regarding the location of the center of gravity of the Areas under the respective stroke curve. Stroke curves can by appropriate control of the electric motor can be modified, and indeed without a shift in the opening and closing crankshaft angle.
  • FIG. 1 shows a valve train 1 with a valve 2, which is shown here only schematically shown valve spring 3 is pressed “up” in its closed position. To open the valve 2, it must move against the spring force of the valve spring 3 be pressed down.
  • a valve lever 4 is provided, which by a Cam 5 can be pressed down.
  • the cam 5 is pivotable about one Pivot axis 6 mounted in the engine.
  • the cam 5 has two cam flanks here on, namely a so-called high dynamic edge 7 and a low dynamic edge 8.
  • a pin 9 is provided on the cam 5, against which an actuator spring 10 suppressed.
  • the high dynamic edge 7 and the low dynamic edge 8 are each different Operating states of the engine assigned, which is not discussed here is to be received.
  • the valve 2 can be opened via the valve lever 4 by the cam 5 is turned clockwise or counterclockwise. at clockwise rotation, the valve 2 is driven by the high dynamic edge 7 open. When turning counterclockwise, the valve is replaced by the Low dynamic edge 8 opened.
  • An electric motor is used to turn the cam in one direction or the other (not shown) provided with which the cam in one or in the other direction can be pivoted.
  • valve 2 with the low dynamic edge of the Cam 5 can be targeted to the by controlling the electric motor
  • the course of the stroke curve of valve 2 can be influenced. Alone through the Control of the electric motor can be almost any number of different Stroke curves are generated.
  • the electric motor is controlled that the stroke curve is as optimal as possible to the current operating condition of the engine, especially the thermodynamic conditions is matched in the engine. This allows charge changes, mixture preparation, Acoustics, consumption and emissions of the internal combustion engine can be optimized.
  • FIGS. 2 and 3 show examples of different possible stroke profiles for an inlet valve.
  • FIG. 2 shows a stroke course for an intake valve, with which good mixture formation can be achieved with a warm engine and low engine load.
  • the valve opens at crankshaft angle E01. This is followed by an increase, described by the crankshaft angle difference EO_F, to a global maximum.
  • the valve expressed in degrees crankshaft angle, holds the crankshaft angle E stroke 1.
  • the valve is then partially closed again, ie the valve stroke drops to a local extremum E stroke 2, which is achieved with ES1.
  • the transition is described by the crankshaft difference ES_F.
  • the valve is then closed. With the crankshaft angle ES2, the valve is then completely closed.
  • FIG. 3 shows a stroke curve for an intake valve, which is expediently activated when the engine is cold in order to keep the formation of hydrocarbons as low as possible, ie in the first 20 seconds after the cold start.
  • the inlet valve is partially opened here when the crankshaft angle EO2 is reached, ie there is an increase to a local extremum.
  • the inlet valve is then kept partially open for the duration E stroke 2.
  • the inlet valve is kept open for the duration E stroke 1.
  • the stroke curve then drops.
  • the inlet valve can either be completely closed, which is then achieved in ES1, or initially partially, which corresponds to the local extremum shown in dashed lines.
  • the inlet valve is then closed again at the latest at time ES2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
EP04003090A 2003-03-14 2004-02-12 Mécanisme de commande de soupapes pour moteur à combustion interne Expired - Fee Related EP1457645B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10311275 2003-03-14
DE10311275A DE10311275A1 (de) 2003-03-14 2003-03-14 Ventiltrieb für einen Verbrennungsmotor

Publications (2)

Publication Number Publication Date
EP1457645A1 true EP1457645A1 (fr) 2004-09-15
EP1457645B1 EP1457645B1 (fr) 2005-08-17

Family

ID=32748255

Family Applications (1)

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EP04003090A Expired - Fee Related EP1457645B1 (fr) 2003-03-14 2004-02-12 Mécanisme de commande de soupapes pour moteur à combustion interne

Country Status (2)

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EP (1) EP1457645B1 (fr)
DE (2) DE10311275A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006117486A1 (fr) 2005-05-03 2006-11-09 Peugeot Citroën Automobiles SA Procédé de réduction des émissions d'hydrocarbures d'un moteur froid et dispositif et moteur mettant en oeuvre ce procédé
EP1818518A1 (fr) * 2006-02-09 2007-08-15 Bayerische Motoren Werke Aktiengesellschaft Moteur à combustion interne avec une méchanisme électroméchanique de commande de soupape
EP1818517A2 (fr) 2006-02-09 2007-08-15 Bayerische Motoren Werke Aktiengesellschaft Moteur à commande de soupapes électrique
FR2909129A1 (fr) * 2006-11-27 2008-05-30 Peugeot Citroen Automobiles Sa Procede perfectionne de commande du fonctionnememnt d'un ensemble de cylindre de moteur a combustion interne.
WO2011061528A2 (fr) 2009-11-18 2011-05-26 Camcon Oil Limited Actionneur électromagnétique rotatif
WO2014056798A1 (fr) * 2012-10-11 2014-04-17 Continental Automotive Gmbh Procédé et dispositif permettant de faire fonctionner un moteur à combustion interne
WO2014191212A1 (fr) * 2013-05-31 2014-12-04 Robert Bosch Gmbh Procédé de commande d'un arbre à cames

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006023654B3 (de) * 2006-05-18 2007-10-25 Esa Patentverwertungsagentur Sachsen-Anhalt Gmbh Anordnung zur Erzeugung einer nichtlinearen Kraft- bzw. Drehmomentkennlinie
DE102008061236A1 (de) 2008-12-09 2010-06-10 Man Diesel Se Verfahren und Ventilnocke zur Ventilsteuerung eines Verbrennungsmotors
US8360387B2 (en) 2010-03-26 2013-01-29 Bose Corporation Actuator including mechanism for converting rotary motion to linear motion
US11353084B2 (en) 2013-03-15 2022-06-07 Clearmotion Acquisition I Llc Rotary actuator driven vibration isolation
US9291300B2 (en) 2013-03-15 2016-03-22 Bose Corporation Rotary actuator driven vibration isolation
DE102015117921A1 (de) 2015-10-21 2017-04-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zur Beeinflussung der Gemischbildung und der Ladungsbewegung bei einer Kolbenbrennkraftmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331931A (en) * 1986-09-02 1994-07-26 Blish Nelson A Variable intake valve
DE10140461A1 (de) * 2001-08-17 2003-02-27 Bayerische Motoren Werke Ag Drehaktor-Vorrichtung zur Hubsteuerung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine
WO2004044392A1 (fr) * 2002-11-14 2004-05-27 Bayerische Motoren Werke Aktiengesellschaft Systeme d'actionneur oscillant servant a commander la levee d'une soupape de changement des gaz dans la culasse d'un moteur a combustion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6561150B1 (en) * 1999-08-23 2003-05-13 Toyota Jidosha Kabushiki Kaisha Engine valve characteristic controller
DE10019744A1 (de) * 2000-04-20 2001-10-25 Fev Motorentech Gmbh Verfahren zur Beeinflussung von Gemischbildung und Ladungsbewegung in einem Zylinder einer fremdgezündeten Kolbenbrennkraftmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331931A (en) * 1986-09-02 1994-07-26 Blish Nelson A Variable intake valve
DE10140461A1 (de) * 2001-08-17 2003-02-27 Bayerische Motoren Werke Ag Drehaktor-Vorrichtung zur Hubsteuerung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine
WO2004044392A1 (fr) * 2002-11-14 2004-05-27 Bayerische Motoren Werke Aktiengesellschaft Systeme d'actionneur oscillant servant a commander la levee d'une soupape de changement des gaz dans la culasse d'un moteur a combustion

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006117486A1 (fr) 2005-05-03 2006-11-09 Peugeot Citroën Automobiles SA Procédé de réduction des émissions d'hydrocarbures d'un moteur froid et dispositif et moteur mettant en oeuvre ce procédé
FR2885389A1 (fr) * 2005-05-03 2006-11-10 Peugeot Citroen Automobiles Sa Procede de reduction des emissions d'hydrocarbures d'un moteur froid et dispositif et moteur mettant en oeuvre ce procede
US7881854B2 (en) 2005-05-03 2011-02-01 Peugeot Citroen Automobiles Sa Method of reducing hydrocarbon emissions from a cold engine and device and engine for carrying out this method
EP1818518A1 (fr) * 2006-02-09 2007-08-15 Bayerische Motoren Werke Aktiengesellschaft Moteur à combustion interne avec une méchanisme électroméchanique de commande de soupape
EP1818517A2 (fr) 2006-02-09 2007-08-15 Bayerische Motoren Werke Aktiengesellschaft Moteur à commande de soupapes électrique
EP1818517A3 (fr) * 2006-02-09 2009-05-13 Bayerische Motoren Werke Aktiengesellschaft Moteur à commande de soupapes électrique
FR2909129A1 (fr) * 2006-11-27 2008-05-30 Peugeot Citroen Automobiles Sa Procede perfectionne de commande du fonctionnememnt d'un ensemble de cylindre de moteur a combustion interne.
WO2011061528A3 (fr) * 2009-11-18 2011-09-22 Camcon Oil Limited Actionneur électromagnétique rotatif
WO2011061528A2 (fr) 2009-11-18 2011-05-26 Camcon Oil Limited Actionneur électromagnétique rotatif
GB2487510A (en) * 2009-11-18 2012-07-25 Camcon Oil Ltd Rotary electromagnetic actuator
US9068480B2 (en) 2009-11-18 2015-06-30 Camcon Auto Limited Rotary electromagnetic actuator
EP2977567A1 (fr) * 2009-11-18 2016-01-27 Camcon Auto Limited Actionneur électromagnétique rotatif
US9768663B2 (en) 2009-11-18 2017-09-19 Camcon Auto Limited Rotary electromagnetic actuator
WO2014056798A1 (fr) * 2012-10-11 2014-04-17 Continental Automotive Gmbh Procédé et dispositif permettant de faire fonctionner un moteur à combustion interne
KR20150065747A (ko) * 2012-10-11 2015-06-15 콘티넨탈 오토모티브 게엠베하 내연 기관을 작동시키기 위한 방법 및 장치
US9518545B2 (en) 2012-10-11 2016-12-13 Continental Automotive Gmbh Method and device for operating an internal combustion engine
WO2014191212A1 (fr) * 2013-05-31 2014-12-04 Robert Bosch Gmbh Procédé de commande d'un arbre à cames
CN105229288A (zh) * 2013-05-31 2016-01-06 罗伯特·博世有限公司 用于操控凸轮轴的方法

Also Published As

Publication number Publication date
DE10311275A1 (de) 2004-09-30
DE502004000040D1 (de) 2005-09-22
EP1457645B1 (fr) 2005-08-17

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