EP2326805A1 - Verfahren zur verstellung einer kurbelwelle eines verbrennungsmotors, nockenwellenverstellsystem und verbrennungsmotor mit verstellbarer kurbelwelle - Google Patents
Verfahren zur verstellung einer kurbelwelle eines verbrennungsmotors, nockenwellenverstellsystem und verbrennungsmotor mit verstellbarer kurbelwelleInfo
- Publication number
- EP2326805A1 EP2326805A1 EP09780891A EP09780891A EP2326805A1 EP 2326805 A1 EP2326805 A1 EP 2326805A1 EP 09780891 A EP09780891 A EP 09780891A EP 09780891 A EP09780891 A EP 09780891A EP 2326805 A1 EP2326805 A1 EP 2326805A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- camshaft
- crankshaft
- internal combustion
- shaft
- combustion engine
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000009467 reduction Effects 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 101100020619 Arabidopsis thaliana LATE gene Proteins 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
-
- 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
- F01L1/352—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 bevel or epicyclic gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/004—Aiding engine start by using decompression means or variable valve actuation
-
- 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
-
- 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/01—Absolute values
-
- 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/03—Auxiliary actuators
- F01L2820/032—Electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits specially adapted for starting of engines
- F02N11/0814—Circuits specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/005—Aiding engine start by starting from a predetermined position, e.g. pre-positioning or reverse rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/005—Aiding engine start by starting from a predetermined position, e.g. pre-positioning or reverse rotation
- F02N2019/008—Aiding engine start by starting from a predetermined position, e.g. pre-positioning or reverse rotation the engine being stopped in a particular position
Definitions
- the invention relates to a method for adjusting a crankshaft of an internal combustion engine by means of a camshaft adjuster with a three-shaft transmission. Generic methods are used in particular in so-called start-stop concepts for internal combustion engines. In addition, the invention relates to a camshaft adjuster and an internal combustion engine with an adjustable crankshaft at engine standstill.
- electro-mechanical camshaft adjustment systems are known from the prior art.
- three-shaft transmissions are commonly used in which a first shaft of the transmission, usually the drive shaft, is connected to the camshaft sprocket of an internal combustion engine, a second shaft (output shaft) is operatively connected to the camshaft via the camshaft sprocket and a third shaft , the adjusting shaft, with the rotor shaft of an electric variable speed motor (electric motor) is connected.
- the adjusting shaft serves to adjust the relative angular position between the camshaft and crankshaft during operation of the internal combustion engine.
- Examples of such three-shaft transmissions are swashplate transmissions and internal eccentric transmissions, which are described in WO 2006/018080. These also include the shaft gears known from WO 2005/080757 and the transmissions contained in US 2007/0051332 A1 and US 2003/0226534 A1. As actuators in such three-shaft systems are often electric motors for adjusting the adjusting used. However, it is also possible to use electrical, mechanical or hydraulic brakes or rotary or linear electromagnets to enable the phase adjustment.
- camshaft adjuster systems are designed due to their operating principle and / or their dimensions for the phase adjustment of the camshaft during engine operation. Joint use of actuator and actuator for pre-positioning of the crankshaft at engine standstill is not possible with such systems.
- the object is achieved by a method according to claim 1, by a camshaft adjusting system according to claim 10 and an internal combustion engine according to claim 16.
- an actuating shaft is driven during the engine standstill or in a transitional phase in which at least one of the three shafts of the three-shaft gear is stationary to complete a timing drive or partially to adjust the crankshaft and optionally one or more camshaft in its angular position.
- n A is the speed of the camshaft
- n B is the speed of the control shaft
- n c is the speed of the camshaft sprocket
- T NW KRAD T KW * 0.5
- T N W 51 TNW KRAD - or T A > T C> so that part of the power of the actuator does not flow into the camshaft.
- An inventive extended camshaft adjustment system with a three-shaft transmission comprises a control device which allows an adjustment of the control shaft when at least one of the other two shafts of the three-shaft transmission is stationary.
- the camshaft phasing system includes an additional pre-gearbox which additionally pre-gears the drive connection between actuator (e.g., electric motor) and actuator stem (three-shaft gearbox).
- actuator e.g., electric motor
- actuator stem three-shaft gearbox.
- the Vors GmbHsgetriebe can be arranged between the control shaft and the Steliergephaseuse or between the actuating shaft and the actuator housing (Nockenwellenkettenrad).
- the camshaft adjusting system in this embodiment comprises a control device for carrying out the method according to the invention.
- the adjustability of the crankshaft angle in engine standstill by means of the camshaft adjusting system according to the invention allows the pre-positioning of the shaft and thus the gas piston for the realization of the direct start of the internal combustion engine, without further units such as starter or positioning niermotoren are required.
- the pre-positioning of the crankshaft can take place with or without superimposed change of the camshaft phase angle.
- activation of the camshaft phasing system is triggered by a switch or message, for example via a CAN bus, or by opening the driver's door of the vehicle or by seat occupancy or the like to adjust and maintain the desired crankshaft angle and / or camshaft angle.
- the method according to the invention should also be effective in the transition areas between engine standstill and starting process, as well as between engine standstill and shutdown.
- a transitional area is, for example, se, if one of the three shafts of the camshaft adjuster already or still stands still or in motors with multiple adjustment individual shafts resting and still rotate the other waves.
- a pre-positioning of the control drive, the crankshaft and / or the camshaft can be controlled or unregulated.
- uncontrolled pre-positioning "blind" is adjusted in one direction With controlled adjustment, a continuous target / actual comparison is carried out, and regulated operation is generally preferred.
- the camshaft stops during the positioning of the crankshaft.
- the camshaft rotates during the positioning of the crankshaft. 3.
- the camshaft stops first and is subsequently carried along.
- crankshaft adjustment systems for example, for intake and exhaust camshaft
- all actuators are to be used synchronously by a corresponding circuit to adjust the crankshaft.
- the tow of the crankshaft should preferably be carried out against the normal drive direction of the control drive.
- the normal direction of drive is the normal direction of rotation of the motor (forward).
- the opposing rotation of the crankshaft has the advantage of tightening the draft margin for later launch.
- the pre-positioning can take place in the direction with the lowest rotational resistance regardless of the chain tension of the actuator in order to save positioning time and energy. If needed then tightened the timing drive by turning in the opposite direction again.
- Camshaft or crankshaft are preferably provided freewheels in the respective hubs so that these components are not mitzuschleppen when pre-positioning in the opposite direction. Such freewheels are already partially available.
- crankshaft must be decoupled from the vehicle transmission during the pre-positioning process. This can be done by an automated clutch or by a freewheel. Here, a fuse that prevents unintentional rolling away of the vehicle when the gearbox is disengaged must be used.
- an apparatus for decompressing the cylinders is provided to reduce the drag torque of the crankshaft.
- crankshaft and camshaft position are detected by a sensor system, and the adjustment selected such that the shorter adjustment is used to the direct start the optimal piston from 1 to 4 in a four-cylinder engine with the least time and energy to position.
- the camshaft adjusting system requires a reinforced electric motor with an engine constant ke> 13 mVs / rad compared to a conventional camshaft adjuster, which is additionally provided in the case of passive camshaft adjusters is.
- the internal combustion engine must provide the required electrical energy of> 100 W via a generator (alternator).
- camshaft breakaway torque, the camshaft drag torque, the crankshaft breakaway torque, and the crankshaft drag torque must each be ⁇ 30 Nm.
- an active camshaft and crankshaft sensor is used for the accurate determination of crankshaft and camshaft position.
- Fig. 1 a partial view of a camshaft adjusting system
- Fig. 2 schematic views of three configuration variants of a control drive.
- a camshaft sprocket 01 is an actuator of a camshaft adjuster via a chain 02 in operative connection with a crankshaft 03. These components form the timing drive.
- the crankshaft 03 drives the or the camshaft sprocket wheels 01 at half the crankshaft rotational speed in a direction of rotation 04.
- the control drive can also be arranged further actuators or camshafts and camshaft adjuster (eg for separate camshafts for intake and exhaust valves). Further actuators and camshafts may be arranged in a separate secondary drive 05 (FIG. 2, FIGS. B and c).
- the secondary drive 05 can in a known manner as a chain drive (Fig b) or as Gear drive (Fig. C) be executed.
- the primary drive can also be designed as a spur gear drive.
- a stop washer 06 is rotatably connected to a camshaft (not shown).
- the stop disk 06 has a cutout 07 which defines a boundary of the adjustment range.
- the cutout 07 has radially spaced from each other an early stop 08 and a late stop 09 on.
- a stop lug 11 on the camshaft sprocket 01 is provided such that camshaft sprocket 01 and stopper plate 06 between the stops 08, 09 can be rotated relative to each other.
- the adjustment range 12 is determined by the distance or the angle between the stop lug 11 and one of the stops 08, 09.
- the control shaft is driven by the electric motor as a controller. During this time, the camshaft is stationary.
- camshaft sprocket 01 with a stationary camshaft has a similar high reduction to the control shaft, as in normal operation of the internal combustion engine, ie when the camshaft sprocket 01 is rotating as a reference system for the camshaft-side driven gear.
- crankshaft positioning must be largely regardless of the camshaft phase angle, which could possibly adversely affect the start and exhaust behavior.
- the camshaft may need to be held in place by an auxiliary device (eg lock or brake device) during crankshaft positioning.
- crankshaft 03 can take place with referencing of the stop lug 1 1 on one of the two end stops 08, 09 of the stop plate 06 and with knowledge of the camshaft angle and the Verstellwellenwinkels.
- crankshaft position is determined directly. Irrespective of this, so-called active crankshaft and / or camshaft sensors are required because parts of the internal combustion engine are stationary at the time of adjustment. Active sensors are voltage-fed sensors that can be sensed even at low speeds until the motor stops.
- a second adjustment strategy is used when the camshaft adjuster has been turned off at one of the two stops 08, 09.
- the corresponding stop can already be set active when the internal combustion engine is switched off. It depends on the towing direction and the type of the variable speed gear, which stop is to be approached in the stop strategy used.
- An adjustment in the direction of the late limit stop must be used for a negative gear ratio of the three-shaft gearbox, right-hand drive direction and right-hand drive motor direction, or if the three-shaft gearbox is positive, the direction of control is left and direction of rotation is left.
- An adjustment in the direction of the early limit stop must be used for a positive gear ratio of the three-shaft gearbox, right-hand drive direction and right-hand drive motor direction, or for negative gear ratio of the three-shaft gearbox, left direction control drive and left hand drive direction of rotation.
- the camshaft is initially stationary (or may need to be held in addition). Upon reaching the other end stop the camshaft is entrained in the drive direction of the camshaft adjuster and thus the crankshaft. In the case of inverse towing operation, the opposite end stop must be used accordingly.
- a particular advantage of this adjustment strategy is that any crankshaft angle can be adjusted.
- crankshaft start position After successful acceptance of the crankshaft start position, a subsequent pre-adjustment of the camshaft phase position is possible before the injection takes place and the internal combustion engine is ignited.
- a third adjustment strategy the control drive and the crankshaft are first to be towed out of the static friction with the aid of the high gear ratio of the three-shaft transmission during an adjustment of the camshaft sprocket within the adjustment range 12 (according to the first adjustment strategy).
- the stop 08 or 09 Qe is reached after trailing direction
- the crankshaft 03 on the adjustment 12 addition can be adjusted with a pre-translation in front of the control shaft, the crankshaft 03 on the adjustment 12 addition.
- a lower pretranslation is required in comparison to the second adjustment strategy, since the breakaway torque of the crankshaft 03 has already been overcome.
- This strategy requires that when the internal combustion engine of the camshaft adjuster takes a camshaft phasing outside of a tow stop so that can always be towed with the high translation.
- the tow stop is the stop, from which then the camshaft is towed with.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008039007A DE102008039007A1 (de) | 2008-08-21 | 2008-08-21 | Verfahren zur Verstellung einer Kurbelwelle eines Verbrennungsmotors, Nockenwellenverstellsystem und Verbrennungsmotor mit verstellbarer Kurbelwelle |
| PCT/EP2009/059373 WO2010020509A1 (de) | 2008-08-21 | 2009-07-21 | Verfahren zur verstellung einer kurbelwelle eines verbrennungsmotors, nockenwellenverstellsystem und verbrennungsmotor mit verstellbarer kurbelwelle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2326805A1 true EP2326805A1 (de) | 2011-06-01 |
| EP2326805B1 EP2326805B1 (de) | 2013-05-01 |
Family
ID=41277514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09780891.9A Not-in-force EP2326805B1 (de) | 2008-08-21 | 2009-07-21 | Verfahren zur verstellung einer kurbelwelle eines verbrennungsmotors, nockenwellenverstellsystem und verbrennungsmotor mit verstellbarer kurbelwelle |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8813703B2 (de) |
| EP (1) | EP2326805B1 (de) |
| DE (1) | DE102008039007A1 (de) |
| WO (1) | WO2010020509A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011004070A1 (de) * | 2011-02-14 | 2012-08-16 | Schaeffler Technologies Gmbh & Co. Kg | 3-Wellen-Verstellgetriebe mit zwei mechanischen Anschlägen |
| DE102011004071A1 (de) * | 2011-02-14 | 2012-08-16 | Schaeffler Technologies Gmbh & Co. Kg | 3-Wellen-Verstellgetriebe mit integrierter Überlastkupplung |
| DE102012219297B4 (de) * | 2011-11-02 | 2023-12-28 | Schaeffler Technologies AG & Co. KG | Verfahren zum Betreiben eines Kraftfahrzeugs |
| DE102014205772B4 (de) | 2014-03-27 | 2024-07-11 | Schaeffler Technologies AG & Co. KG | Verfahren zur Verstellung von Steuerzeiten einer Brennkraftmaschine |
| DE102014205770A1 (de) | 2014-03-27 | 2015-10-01 | Schaeffler Technologies AG & Co. KG | Verfahren zur Verstellung von Steuerzeiten einer Brennkraftmaschine |
| CN106870173B (zh) * | 2017-04-12 | 2023-09-19 | 吉林大学 | 一种发动机停机相位控制机构 |
| DE102018006666B4 (de) * | 2018-08-23 | 2022-08-25 | Mercedes-Benz Group AG | Verbrennungskraftmaschine für einen Kraftwagen, mit einer Steuereinheit zum Ausrichten einer Nockenwelle und Verfahren zum Betreiben einer solchen Verbrennungskraftmaschine |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4439849A1 (de) * | 1994-11-08 | 1996-05-09 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Starten einer Brennkraftmaschine |
| AU2001250234A1 (en) * | 2000-05-13 | 2001-11-26 | Krupp Presta Ag | Adjusting device for adjusting the relative position of a shaft |
| JP3772699B2 (ja) * | 2001-06-28 | 2006-05-10 | トヨタ自動車株式会社 | 機関作動特性変更手段のロック防止作動制御方法 |
| JP4346262B2 (ja) * | 2001-07-25 | 2009-10-21 | 本田技研工業株式会社 | 内燃機関の始動方法および始動装置 |
| DE50209970D1 (de) * | 2002-05-14 | 2007-05-31 | Ford Global Tech Llc | Verfahren zur Vorbereitung des Anlassens einer Brennkraftmaschine |
| JP3986371B2 (ja) | 2002-06-07 | 2007-10-03 | 株式会社日立製作所 | 内燃機関のバルブタイミング制御装置 |
| DE10330872B4 (de) * | 2003-07-09 | 2018-05-30 | Schaeffler Technologies AG & Co. KG | Verfahren zum Bestimmen des Verdrehwinkels einer Nockenwelle gegenüber der Kurbelwelle eines Verbrennungsmotors |
| DE102004006337A1 (de) * | 2004-02-10 | 2005-08-25 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Winkelverstellung einer Kurbelwelle |
| DE102004009128A1 (de) | 2004-02-25 | 2005-09-15 | Ina-Schaeffler Kg | Elektrischer Nockenwellenversteller |
| KR101158926B1 (ko) * | 2004-06-09 | 2012-07-03 | 섀플러 카게 | 캠축 조정 장치 |
| DE102004033522A1 (de) * | 2004-07-10 | 2006-02-09 | Ina-Schaeffler Kg | Nockenwellenversteller mit elektrischem Antrieb |
| US7066127B2 (en) | 2004-07-21 | 2006-06-27 | Delphi Technologies, Inc. | Controlled engine camshaft stopping position |
| DE102004038681B4 (de) | 2004-08-10 | 2017-06-01 | Schaeffler Technologies AG & Co. KG | Elektromotorischer Nockenwellenversteller |
| ES2305959T3 (es) * | 2004-08-28 | 2008-11-01 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Procedimiento para determinar la posicion angular de giro del arbol de levas de un motor de combustion de pistones alternativos con relacion al cigueñal. |
| DE502005003033D1 (de) * | 2004-10-20 | 2008-04-10 | Schaeffler Kg | Verfahren zum einstellen der drehwinkellage der nockenwelle einer hubkolben- verbrennungsmaschine relativ zur kurbelwelle |
| US7654238B2 (en) * | 2004-11-08 | 2010-02-02 | Ford Global Technologies, Llc | Systems and methods for controlled shutdown and direct start for internal combustion engine |
| DE102005019973A1 (de) * | 2005-04-27 | 2006-01-05 | Geze Gmbh | Verfahren zur Steuerung eines Antriebs einer Tür |
| US8132549B2 (en) * | 2005-08-09 | 2012-03-13 | Schaeffler Technologies Gmbh & Co. Kg | Reciprocating piston internal combustion engine and method for determining the wear of a transmission element arranged between a crankshaft and a camshaft |
| JP4390078B2 (ja) | 2005-09-05 | 2009-12-24 | 株式会社デンソー | バルブタイミング調整装置 |
| US7421990B2 (en) * | 2006-08-22 | 2008-09-09 | Delphi Technologies, Inc. | Harmonic drive camshaft phaser |
| DE102007046819B4 (de) * | 2007-09-29 | 2016-12-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren und Vorrichtung zum Starten eines direkteinspritzenden Verbrennungsmotors sowie Kraftfahrzeug |
-
2008
- 2008-08-21 DE DE102008039007A patent/DE102008039007A1/de not_active Withdrawn
-
2009
- 2009-07-21 WO PCT/EP2009/059373 patent/WO2010020509A1/de not_active Ceased
- 2009-07-21 EP EP09780891.9A patent/EP2326805B1/de not_active Not-in-force
- 2009-07-21 US US13/060,147 patent/US8813703B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010020509A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008039007A1 (de) | 2010-02-25 |
| US8813703B2 (en) | 2014-08-26 |
| WO2010020509A1 (de) | 2010-02-25 |
| US20110146603A1 (en) | 2011-06-23 |
| EP2326805B1 (de) | 2013-05-01 |
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