EP0758047B1 - Verfahren zum Betreiben einer hydraulisch gesteuerten/geregelten Nockenwellen-Verstellvorrichtung für Brennkraftmaschinen - Google Patents
Verfahren zum Betreiben einer hydraulisch gesteuerten/geregelten Nockenwellen-Verstellvorrichtung für Brennkraftmaschinen Download PDFInfo
- Publication number
- EP0758047B1 EP0758047B1 EP96108399A EP96108399A EP0758047B1 EP 0758047 B1 EP0758047 B1 EP 0758047B1 EP 96108399 A EP96108399 A EP 96108399A EP 96108399 A EP96108399 A EP 96108399A EP 0758047 B1 EP0758047 B1 EP 0758047B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- camshaft
- controlled
- internal combustion
- valve
- operating
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 9
- 230000001105 regulatory effect Effects 0.000 title description 3
- 238000011017 operating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/34403—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
- F01L1/34406—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley
-
- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34446—Fluid accumulators for the feeding circuit
-
- 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
- F01L2800/00—Methods of operation using a variable valve timing mechanism
- F01L2800/01—Starting
Definitions
- the invention relates to one according to the preamble features of the claim 1 designed method for operating a hydraulically controlled / regulated Camshaft adjusting device for internal combustion engines.
- EP-B 0 245 791 describes one operated according to the generic method Camshaft adjusting device known in which the mechanical actuating device by appropriate choice of the direction of a helical or helical toothing is designed relative to the direction of rotation of the camshaft so that at Failure of the control / regulating hydraulics in the late position to the stop brought. This is to ensure engine operation when the internal combustion engine is cold started with the generic hydraulic system principally to quickly undo towards early adjustment, however, e.g. Early adjustment to be achieved within one second no longer ensured during longer breaks in operation of the internal combustion engine due to leaks in one of the two valves, the pressure level in the pressure accumulator is reduced.
- the invention has for its object the generic operating method for a camshaft adjusting device with a simple structure to improve that a rapid early adjustment of the camshaft can be achieved depending on the start is.
- valve-controlled pressure accumulator connectable to the hydraulic circuit advantageously, with a simple structure, a method for the fastest possible Early adjustment of the camshaft achieved when starting the internal combustion engine.
- the method according to the invention is schematic with reference to one in the drawing Hydraulic circuit shown for a camshaft adjusting device described.
- a camshaft adjusting device 1 of a not shown Internal combustion engine comprises a mechanical actuating device 2 and one hydraulic actuating device 3.
- the mechanical actuating device 2 effects about their teeth 4 and 5 according to the drive direction according to the arrow "A" of the driven wheel 6 when the hydraulic actuating device 3 is ineffective a late position of a camshaft 7, a piston 8 of the Actuator 3 assumes an end position "B".
- the pump 9, supply line 11, return line 12 and 4/3-way valve 13 in essentially formed hydraulic circuit 16 is upstream of the check valve 10 A pressure accumulator 19 via a line 17 and a 2/2-way valve 18 connected.
- the one arranged in series with the pressure accumulator 19 Electromagnetically actuated 2/2-way valve 18 has in the with Pump-side hydraulic circuit 16 connected pressure accumulator inlet path 17 'a seat valve 20.
- the seat valve 20 serves to retain Pressure medium from the hydraulic circuit 16 in the pressure accumulator 19.
- control unit 21 denotes an electronic control unit, which is connected via signal lines 22 is connected to an ignition system 23.
- Another control line 24 is connected the electromagnetically actuated 4/3-way valve 13 connected such that the Inlet line 11 with the control chamber 14 in the late position of the camshaft 7 standing piston 8 is connectable.
- the control unit 21 further signal line 25 to the electromagnetically actuated 2/2-way valve 18, to close the pressure accumulator 19 with the inlet line 11 via its outlet path 17 " connect.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Description
Claims (3)
- Verfahren zum Betreiben einer hydraulisch gesteuerten/geregelten Nockenwellen-Verstellvorrichtung für Brennkraftmaschinen,bei dem eine auf Spät-Stellung der Nockenwelle (7) ausgelegte mechanische Stelleinrichtung (2) durch einen zumindest einseitig hydraulisch beaufschlagbaren Kolben (8) gesteuert wird, demein Druckmedium aus einem Hydraulikkreis (16) über ein betriebspunktabhängig wirksames Steuerventil (13) zugeführt wird, wobeidas Druckmedium unter der Wirkung eines Druckspeichers (19) steht, dadurch gekennzeichnet,daß bei einem Start der Brennkraftmaschine ein in dem Druckspeicher (19) über ein gesondertes Wegeventil (18) gesteuert bevorratet gehaltenes Druckmedium in Abhängigkeit eines Startsignals über das Wegeventil (18) gesteuert freigegeben wird zur Beaufschlagung des Verstellkolbens (8) für eine Früh-Verstellung der Nockenwelle (7) durch die Stelleinrichtung (2).
- Verfahren nach Anspruch 1,gekennzeichnet durch die Verwendung eines mit dem Druckspeicher (19) in Reihe angeordneten, elektromagnetisch betätigbaren 2/2-Wegenventils (18), dasin dem mit dem pumpenseitigen Hydraulikkreis (16) in Verbindung stehenden Druckspeicher-Zulaufweg (17') ein Sitzventil (20) umfaßt.
- Verfahren nach Anspruch 1 und 2,gekennzeichnet durch die Verwendung eines vorgesteuerten, elektromagnetisch betätigbaren 2/2-Wegeventils (18).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19529277A DE19529277A1 (de) | 1995-08-09 | 1995-08-09 | Verfahren zum Betreiben einer hydraulisch gesteuerten/geregelten Nockenwellen-Verstellvorrichtung für Brennkraftmaschinen |
DE19529277 | 1995-08-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0758047A1 EP0758047A1 (de) | 1997-02-12 |
EP0758047B1 true EP0758047B1 (de) | 1999-06-30 |
Family
ID=7769080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96108399A Expired - Lifetime EP0758047B1 (de) | 1995-08-09 | 1996-05-28 | Verfahren zum Betreiben einer hydraulisch gesteuerten/geregelten Nockenwellen-Verstellvorrichtung für Brennkraftmaschinen |
Country Status (4)
Country | Link |
---|---|
US (1) | US5704317A (de) |
EP (1) | EP0758047B1 (de) |
DE (2) | DE19529277A1 (de) |
ES (1) | ES2134535T3 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5915348A (en) * | 1996-11-07 | 1999-06-29 | Ina Walzlager Schaeffler Ohg | Adjusting cylinder of a camshaft adjusting device acted upon by a separate oil supply unit |
DE19604865B4 (de) * | 1996-02-10 | 2009-05-07 | Schaeffler Kg | Mittels separater Ölfördereinrichtung beaufschlagbarer Stellzylinder eines Nockenwellenverstellers |
DE19639170A1 (de) * | 1996-09-24 | 1998-03-26 | Bayerische Motoren Werke Ag | Verfahren zum Starten einer fremdgezündeten Brennkraftmaschine mit Kraftstoffeinspritzung und einer Nockenwellen-Verdreheinheit |
DE19702268A1 (de) * | 1997-01-23 | 1998-07-30 | Deutz Ag | Einspritzverlaufformung für MV-Einspritzsysteme |
US6158404A (en) * | 1997-02-26 | 2000-12-12 | Aft Atlas Fahrzeugtechnik Gmbh | Apparatus for regulating the operation of an adjusting device |
US5862783A (en) * | 1998-03-12 | 1999-01-26 | Lewis; Henry E. | Variable angle camshaft |
US6234125B1 (en) * | 1998-03-30 | 2001-05-22 | Aft Atlas Fahrzeugtechnik Gmbh | Apparatus for angular adjustment of camshafts relative to crankshafts in combustion engines |
US6981040B1 (en) | 1999-12-28 | 2005-12-27 | Utopy, Inc. | Automatic, personalized online information and product services |
US6782856B2 (en) * | 2002-04-09 | 2004-08-31 | Ford Global Technologies, Llc | Camshaft accumulator |
DE10228354B4 (de) * | 2002-06-25 | 2017-06-22 | Daimler Ag | Vorrichtung zur Druckversorgung einer Nockenwellen-Verstelleinrichtung |
DE102007020431B4 (de) | 2007-04-27 | 2010-07-22 | Schwäbische Hüttenwerke Automotive GmbH & Co. KG | Nockenwellenphasensteller und Vakuumpumpe für eine Brennkraftmaschine |
DE102007041552A1 (de) * | 2007-08-31 | 2009-03-05 | Schaeffler Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
DE102007056683A1 (de) * | 2007-11-24 | 2009-05-28 | Schaeffler Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
DE102007056685A1 (de) * | 2007-11-24 | 2009-05-28 | Schaeffler Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
DE102009034011B4 (de) | 2008-10-07 | 2018-04-05 | Schaeffler Technologies AG & Co. KG | Druckspeicher zur Unterstützung der Druckmittelversorgung eines Nockenwellenverstellers einer Brennkraftmaschine |
DE102009030201A1 (de) * | 2009-06-24 | 2010-12-30 | Schaeffler Technologies Gmbh & Co. Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
DE102009042202A1 (de) * | 2009-09-18 | 2011-04-14 | Schaeffler Technologies Gmbh & Co. Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
DE102009049459A1 (de) | 2009-10-15 | 2011-04-21 | Schaeffler Technologies Gmbh & Co. Kg | Volumenspeicher |
DE102009049461A1 (de) | 2009-10-15 | 2011-04-21 | Schaeffler Technologies Gmbh & Co. Kg | Volumenspeicher |
DE102011003991A1 (de) | 2011-02-11 | 2012-08-16 | Schaeffler Technologies Gmbh & Co. Kg | Nockenwellenversteller mit einem Druckspeicher |
US8683965B2 (en) * | 2011-05-10 | 2014-04-01 | Gm Global Technology Operations, Llc | Engine assembly including camshaft actuator |
DE102012201551B4 (de) * | 2012-02-02 | 2022-05-12 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller und Verfahren zum Füllen eines Volumenspeichers in einem Nockenwellenversteller |
US9863293B2 (en) * | 2012-08-01 | 2018-01-09 | GM Global Technology Operations LLC | Variable valve actuation system including an accumulator and a method for controlling the variable valve actuation system |
DE102013005959B4 (de) * | 2013-04-06 | 2020-03-26 | Deutz Aktiengesellschaft | Brennkraftmaschine mit einer Ölversorgung eines Nockentriebs und Verfahren zum Betreiben einer solchen |
DE102013219075B4 (de) * | 2013-09-23 | 2020-11-26 | Schaeffler Technologies AG & Co. KG | Multiverriegelung eines Nockenwellenverstellers |
DE102013220322B4 (de) * | 2013-10-09 | 2020-11-26 | Schaeffler Technologies AG & Co. KG | Nockenwellenverstelleinrichtung |
DE102015204040B4 (de) * | 2015-03-06 | 2021-07-08 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller |
US11352913B2 (en) * | 2017-12-20 | 2022-06-07 | Guangzhou Automobile Group Co., Ltd. | Variable valve lift device and automobile |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3616234A1 (de) * | 1986-05-14 | 1987-11-19 | Bayerische Motoren Werke Ag | Vorrichtung zur relativen drehlagenaenderung zweier in antriebsverbindung stehender wellen, insbesondere zwischen in einem maschinengehaeuse einer brennkraftmaschine gelagerten kurbelwelle und nockenwelle |
JPS63106309A (ja) * | 1986-10-23 | 1988-05-11 | Honda Motor Co Ltd | 内燃機関の弁作動特性可変制御装置 |
EP0571472B1 (de) * | 1991-02-20 | 1995-05-03 | ITT Automotive Europe GmbH | Hydraulikanlage |
JP2971593B2 (ja) * | 1991-03-06 | 1999-11-08 | アイシン精機株式会社 | 弁開閉時期制御装置 |
US5127375A (en) * | 1991-04-04 | 1992-07-07 | Ford Motor Company | Hydraulic valve control system for internal combustion engines |
DE4324987A1 (de) * | 1993-07-26 | 1995-02-02 | Teves Gmbh Alfred | Einrichtung zur hydraulischen Verstellung einer Nockenwelle |
-
1995
- 1995-08-09 DE DE19529277A patent/DE19529277A1/de not_active Withdrawn
-
1996
- 1996-05-28 ES ES96108399T patent/ES2134535T3/es not_active Expired - Lifetime
- 1996-05-28 DE DE59602318T patent/DE59602318D1/de not_active Expired - Lifetime
- 1996-05-28 EP EP96108399A patent/EP0758047B1/de not_active Expired - Lifetime
- 1996-08-09 US US08/695,348 patent/US5704317A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19529277A1 (de) | 1997-02-13 |
DE59602318D1 (de) | 1999-08-05 |
ES2134535T3 (es) | 1999-10-01 |
EP0758047A1 (de) | 1997-02-12 |
US5704317A (en) | 1998-01-06 |
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