WO2006042494A1 - Verfahren zum einstellen der drehwinkellage der nockenwelle einer hubkolben- verbrennungsmaschine relativ zur kurbelwelle - Google Patents
Verfahren zum einstellen der drehwinkellage der nockenwelle einer hubkolben- verbrennungsmaschine relativ zur kurbelwelle Download PDFInfo
- Publication number
- WO2006042494A1 WO2006042494A1 PCT/DE2005/001720 DE2005001720W WO2006042494A1 WO 2006042494 A1 WO2006042494 A1 WO 2006042494A1 DE 2005001720 W DE2005001720 W DE 2005001720W WO 2006042494 A1 WO2006042494 A1 WO 2006042494A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- phase angle
- stop
- signal
- angle signal
- camshaft
- Prior art date
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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
- F01L1/34—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
- F01L2800/00—Methods of operation using a variable valve timing mechanism
-
- 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
- F01L2820/04—Sensors
- F01L2820/041—Camshafts position or phase sensors
Definitions
- the invention relates to a method for adjusting the rotational angular position of the camshaft of a reciprocating internal combustion engine relative to the crankshaft, wherein the crankshaft via a variable speed drive with the camshaft in drive connection, which is designed as a three-shaft gear with a crankshaft fixed drive shaft, a camshaft fixed output shaft and an adjusting shaft, wherein a phase angle signal is detected for the rotational angle position of the camshaft relative to the crankshaft, wherein a stop travel is carried out in which a stop element connected to the drive shaft is moved towards a counter stop element connected to the camshaft, while the reaching of a stop position is monitored wherein, upon detecting the stop position, a stopper phase angle value is detected, and wherein a target phase angle signal is provided and the phase angle signal is controlled to the target phase angle signal.
- the electric motor is controlled in such a way that the deviation is reduced. So that the engine function can be maintained even in the event of a malfunction of the adjusting device, the relative displacement is limited to a maximum displacement angle by means of a stop element connected to the drive shaft, which interacts with a camshaft-fixed counterstop element.
- the reaching of the stop position is monitored by sensors.
- a phase angle value is assigned to the stop position. This can be done, for example, in such a way that the phase angle signal at the stop position is read out and the corresponding measured value is used as the phase angle value for the stop position. But it is also possible to set the phase angle signal to zero when the stop position is reached. In this case, the stop position forms the reference point for the phase angle signal.
- the desired phase angle signal is provided by an engine control unit which controls the reciprocating internal combustion engine.
- the desired phase angle signal is selected in dependence on the operating state of the internal combustion engine such that a favorable fuel consumption and a low pollutant emissions of the reciprocating internal combustion engine results.
- the phase angle signal is regulated by this desired phase angle signal by the adjustment shaft being rotated in the event of a deviation between the phase angle signal and the desired phase angle signal so that the deviation is reduced.
- the desired phase angle signal is limited in dependence on the stop phase angle value such that a collision of the stop element with the counter stop element is avoided during normal operation of the internal combustion engine. In practice, however, it has been shown that the stop position can change during operation of the reciprocating internal combustion engine, so that it no longer coincides with the stop phase angle value determined during the starting process.
- This object is achieved by assigning an adjacent or adjacent phase angle range to the stop phase angle value and comparing the phase angle signal with the phase angle range, and in the event that the SoII phase angle signal should be within the phase angle range Phase angle signal is interrupted to the desired phase angle signal and another Anschlag ⁇ ride is carried out, in which the stop element zube ⁇ is moved to the counter-stop element, while the achievement of the stop position is monitored, that when detecting the stop position of the stop phase angle value is redetermined and thereafter, the control of the phase angle signal to the target phase angle signal is continued.
- this makes it possible to redetermine the stop phase angle value during normal operation of the reciprocating internal combustion engine in order to adapt it, for example, to changed operating conditions of the internal combustion engine.
- the stop travel is carried out when the desired phase angle signal is in the vicinity of a stop phase angle value determined at an earlier time, for example at the last stop travel, so that only a relatively small deviation of the phase angle signal from the desired phase angle signal occurs during the stop travel and the An ⁇ schlagfahrt thus practically does not affect the fuel consumption, the pollutant emissions or other performance of the reciprocating internal combustion engine.
- the stop travel is thus carried out without the user of the combustion engine noticing this.
- the stop phase angle value can be used as a reference point for the phase angle signal and / or during the control of the phase angle signal for limiting the phase angle.
- the target phase angle signal is compared during stop travel with the phase angle range, wherein in the event that the desired phase angle signal should leave the phase angle range, the stop travel ab ⁇ broken and the control of the phase angle signal is resumed on the target phase angle signal.
- the stop travel ab ⁇ broken and the control of the phase angle signal is resumed on the target phase angle signal.
- the time which has elapsed since the last stop travel is measured and compared with a predetermined minimum period of time, wherein the execution of a further stop travel is suppressed as long as the minimum duration has not yet been reached. It is assumed that no significant change in the stop position is to be expected within the minimum period of time. Unnecessary stop rides are thus avoided.
- At least one operating state variable of the internal combustion engine in particular its operating temperature and / or crankshaft speed, is detected when stop drives are carried out in different operating states, if the stop phase angle values respectively determined for the individual operating states are stored in a data memory, and if Thereafter, for an operating condition, a stopper phase angle value is determined by reading out a stopper phase angle value from the data memory and using it to limit the phase angle signal and / or reference phase angle signal and / or as the reference point for the phase angle signal, depending on the at least one operating state variable.
- a characteristic map is learned which, for example, can have as parameters the cooling water and / or oil temperature of the combustion engine and / or the crankshaft speed.
- the stop phase angle value can be easily adapted to a change in the operating state of the internal combustion engine without the need for a stop travel again.
- the map is stored in a non-volatile memory, such as a non-volatile memory.
- an EEProm stored so that it is still available after a restart of the internal combustion engine.
- the data memory may be preset with default values.
- the difference between the phase angle signal and the stop phase angle value is determined, wherein the desired phase speed signal is changed as a function of the difference and in particular reduced when the difference decreases.
- the desired phase speed signal is changed as a function of the difference and in particular reduced when the difference decreases.
- an electric motor is provided for driving the adjusting shaft, wherein during the stop travel the operating current and / or the operating voltage of the electric motor is (are) limited. Also by this measure, damage to the An ⁇ stop and / or counter-stop element can be avoided.
- the operating current and / or the operating voltage of the electric motor can be limited by pulse width modulation.
- FIG. 1 is a schematic partial view of a reciprocating internal combustion engine having a device for adjusting the phase angle of the camshaft relative to the crankshaft,
- FIG. 3 shows a graphic representation of a phase angle signal and a nominal phase angle signal during a stop travel, wherein the abscissa represents the time in seconds and the ordinate the signal amplitude, and
- FIG. 4 representation similar to FIG. 3, but with the stop travel is prematurely terminated.
- An adjusting device for the rotational angle position of the camshaft 3 relative to the crankshaft 5 of a reciprocating internal combustion engine has, according to FIG. 1, an adjusting mechanism 1 which is designed as a three-shaft transmission with a crankshaft-fixed drive shaft, a camshaft-fixed output shaft and an adjusting shaft.
- the adjusting mechanism may be a planetary gear, preferably a planetary gear.
- the drive shaft is rotatably connected to a camshaft gear 2, which is in a conventional manner via a chain or a toothed belt with a rotatably mounted on the crankshaft 5 of the internal combustion engine crankshaft gear in drive connection.
- the output shaft is rotatably connected to the camshaft 3.
- the adjusting is rotatably connected to the rotor of an electric motor 4.
- the adjusting mechanism 1 is integrated in the Na ⁇ be the camshaft gear 2.
- the adjusting device has a fixed to the An ⁇ drive shaft of the variable. 1 connected stop element 6 and a symbolsanschlag- element 7, which is non-rotatably connected to the camshaft 3 and comes in the position of use in a stop position on the stop element 4 to the plant.
- a magnetic detector 8 which detects the tooth flanks of a consisting of a magnetically conductive material existing, arranged on the crankshaft 5 ring gear 9.
- One of the tooth gaps or teeth of the toothed rim 9 has a greater width than the other tooth gaps or teeth and marks a reference rotational angle position of the crankshaft 5.
- a reference mark is generated in the sensor signal of the magnetic detector 8, which is also referred to below as the crankshaft sensor signal. This is achieved in that the crankshaft sprocket 9 at the reference rotational angle position has a larger gap than between its other teeth.
- a rotational angle measuring signal is set to a value assigned to the reference rotational position. Thereafter, the rotational angle measuring signal is tracked with each change in the state of the crankshaft sensor signal by triggering an interrupt in an operating program of a control device, in which the rotational angle measurement signal is incremented.
- an EC motor which has a rotor, on the circumference of a series of magnetized alternately in opposite directions magnetic magnet segments is arranged, which via an air gap with teeth of a stator interact magnetically.
- the teeth are wound with a winding, which is energized via a An ⁇ control device.
- the position of the magnet segments relative to the stator and thus the Verstellwellenen loftwinkel is detected by means of a measuring device having a plurality of magnetic field sensors 10 which are arranged offset to one another in the circumferential direction of the stator such that per revolution of the rotor, a number of magnetic segment sensor Combinations will go through.
- the magnetic field sensors 10 generate a digital sensor signal which passes through an order of sensor signal states that repeat as often as the measuring device has magnetic field sensors 10 during a mechanical full rotation of the rotor. This sensor signal is also referred to below as Verstellwellen sensor signal.
- a Hall sensor 11 As a reference signal generator for the camshaft rotation angle, a Hall sensor 11 is provided, which cooperates with a arranged on the camshaft 3 trigger wheel 12. When Er ⁇ reaching a predetermined angular position of the camshaft 3, a flank is generated in a camshaft reference signal. If the hall sensor 11 detects the edge, an interrupt is triggered in an operating program of a control unit, in which the crankshaft rotation angle and the adjustment shaft rotation angle for the control of the phase angle are temporarily stored for further processing. This interrupt will also be referred to as a camshaft interrupt below. Finally, in the operating program of the control unit, a time-slice-controlled interrupt is also triggered, which is referred to below as a cyclical interrupt.
- the current phase angle ⁇ ist (t) is calculated: ⁇ ⁇ sl (0 ⁇ ⁇ Abs H 7 ⁇ ' V- ' ⁇ EmJCyc ⁇ EmJCam] ⁇ i ⁇ cnkJCyc ⁇ ⁇ cnkJCam] J
- ⁇ Abs is the absolute phase angle determined by measurement at each camshaft interrupt and equal to the crankshaft rotation angle cpcnwcy c at that time.
- phase angle signal ⁇ st is thus tracked, starting from a reference rotational angle value, in a change in state of the crankshaft sensor signal and / or the Verstellwellen-Sen ⁇ sensor signal.
- the thus determined phase angle signal ⁇ st is regulated to a Sollphasenwin- kelsignal ⁇ so n, which is provided by an engine control unit.
- a stop travel is initially carried out in which the stop element 6 is moved toward the counter-stop element 7 by appropriate activation of the electric motor 4 until the stop position er ⁇ is enough.
- the in ⁇ ⁇ is by means of the phase angle signal is determined and the phase velocity of a the stop position occurring decrease in the phase velocity is detected. So ⁇ soon, the phase angle value ⁇ s to ch iag is known for the stop position, the Phasenwin- ⁇ angle signal is measured with respect to this phase angle and to the setpoint phase angle signal ⁇ SO ⁇ regulated.
- the further phase angle signal ⁇ - ⁇ st is measured in relation to the reference mark and the camshaft edge .
- a greater accuracy of measurement is achieved.
- tolerances are dependent, inter alia, on the operating temperature of the internal combustion engine (thermal change in length of the chain or toothed belt) and the speed of the crankshaft, which influences the centrifugal forces on the chain or toothed belt.
- the phase angle signal is is ⁇ in response to the stop phase angle value ⁇
- An sc h i a g limited such that the machine during normal operation of the Verbrennungs ⁇ a collision of the Stop element 6 with the counter stop element 7 vermie ⁇ is the.
- ⁇ for the stop phase angle value at s ch ia g during Be ⁇ the internal combustion engine drive learned a map and stored in a data memory in which for different operating temperatures and / or crankshaft speeds respectively a stop phase angle value ⁇ An h h h is stored.
- a shock An ⁇ phase angle value ⁇ An sc h i a g is determined and used to limit the phase angle signal ⁇ is t.
- the stop phase angle value ⁇ An h h h is associated with a phase angle range which is adjacent to the stop phase angle value ⁇ S c t u a g. In Fig. 3 and 4, this phase angle range is marked by a double arrow 13.
- the desired phase angle signal ⁇ so provided by the engine control unit is compared with the phase angle range.
- the reaching of the stop position is again monitored by detecting a decrease in the phase velocity occurring at the stop position while the electric motor continues to be energized in the direction of the counter-stop element 7.
- the control of the phase angle signal ⁇ is resumed on the desired phase angle signal ⁇ S0 n.
- the phase angle signal ⁇ j St leaves the phase angle range marked by the double arrow 13 during a stop travel.
- the stop driving the setpoint phase angle signal ⁇ as n constantly compared with the phase angle range, and after each comparison if the setpoint phase angle signal ⁇ as n, it is checked is still within the phase angle range, and thus the stop movement is still allowed. If it is determined during the check that the desired phase angle signal ⁇ so n outside the Phase angle range is the stop travel is aborted and the control of the phase angle signal ⁇ is resumed on the desired phase angle signal ⁇ so n again.
- the phase angle signal is again removed from the stop phase angle value ⁇ ans c h i a g from the point in time indicated at t A bb r uc h , before the stop position has been reached.
- the measured stop phase angle values ⁇ An h h h in the form of a characteristic map are stored in a data memory.
- the operating state variables on which the characteristic map is dependent are determined at each stop travel, and depending on the operating state variables, a memory location in the data memory is allocated to the respective stop phase angle value ⁇ Anschag , in which the An ⁇ stop phase angle value ⁇ A ⁇ s ch is deposited. If the measured stop phase angle values ⁇ AnS c h i a g is not plausible, the storage of the stop phase angle value ⁇ Ans chiag is suppressed.
- a timer which measures the time which has elapsed since the last stop travel is reset. Before a further stop travel is carried out, the time measured by the timer is first read out and compared with a predetermined minimum time duration. As long as the minimum period has not been reached, the execution of another stop travel is suppressed.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05791470A EP1802851B1 (de) | 2004-10-20 | 2005-09-28 | Verfahren zum einstellen der drehwinkellage der nockenwelle einer hubkolben- verbrennungsmaschine relativ zur kurbelwelle |
US11/577,619 US7451730B2 (en) | 2004-10-20 | 2005-09-28 | Method for adjusting the position of the angle of rotation of the camshaft of a reciprocating piston internal combustion engine in relation to the crankshaft |
DE112005003247T DE112005003247A5 (de) | 2004-10-20 | 2005-09-28 | Verfahren zum Einstellen der Drehwinkellage der Nockenwelle einer Hubkolben-Verbrennungsmaschine relativ zur Kurbelwelle |
DE502005003033T DE502005003033D1 (de) | 2004-10-20 | 2005-09-28 | Verfahren zum einstellen der drehwinkellage der nockenwelle einer hubkolben- verbrennungsmaschine relativ zur kurbelwelle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004051000.8 | 2004-10-20 | ||
DE102004051000 | 2004-10-20 |
Publications (1)
Publication Number | Publication Date |
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WO2006042494A1 true WO2006042494A1 (de) | 2006-04-27 |
Family
ID=35448190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2005/001720 WO2006042494A1 (de) | 2004-10-20 | 2005-09-28 | Verfahren zum einstellen der drehwinkellage der nockenwelle einer hubkolben- verbrennungsmaschine relativ zur kurbelwelle |
Country Status (4)
Country | Link |
---|---|
US (1) | US7451730B2 (de) |
EP (1) | EP1802851B1 (de) |
DE (2) | DE112005003247A5 (de) |
WO (1) | WO2006042494A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101222343B1 (ko) * | 2004-10-06 | 2013-01-14 | 섀플러 홀딩 게엠베하 운트 코. 카게 | 크랭크축과 관련하여 왕복형 내연기관의 캠축의 회전 각도위치를 조정하기 위한 방법 |
JP4948831B2 (ja) * | 2005-12-13 | 2012-06-06 | ヤマハ発動機株式会社 | 可変動弁装置ならびにそれを備えるエンジンシステムおよび乗り物 |
DE102009002403A1 (de) * | 2008-04-17 | 2009-10-22 | Denso Corporation, Kariya-City | Ventilsteuerzeitsteuervorrichtung und Ventilsteuerzeitsteueranordnung |
DE102008039007A1 (de) * | 2008-08-21 | 2010-02-25 | Schaeffler Kg | Verfahren zur Verstellung einer Kurbelwelle eines Verbrennungsmotors, Nockenwellenverstellsystem und Verbrennungsmotor mit verstellbarer Kurbelwelle |
US9488498B2 (en) * | 2014-03-21 | 2016-11-08 | Infineon Technologies Ag | Cam shaft rotation sensor |
US10222234B2 (en) | 2014-06-17 | 2019-03-05 | Infineon Technologies Ag | Rotation sensor |
US11125768B2 (en) | 2014-06-17 | 2021-09-21 | Infineon Technologies Ag | Angle based speed sensor device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5289805A (en) * | 1992-03-05 | 1994-03-01 | Borg-Warner Automotive Transmission & Engine Components Corporation | Self-calibrating variable camshaft timing system |
DE10038354A1 (de) * | 2000-08-05 | 2002-02-28 | Atlas Fahrzeugtechnik Gmbh | Steuereinrichtung zum Verstellen des Drehwinkels einer Nockenwelle |
JP2002161763A (ja) * | 2000-11-24 | 2002-06-07 | Unisia Jecs Corp | 電磁式可変バルブタイミング装置の制御装置 |
US20030000498A1 (en) * | 2001-07-02 | 2003-01-02 | Mathews David Stewart | Target wheel tooth detection |
EP1375833A1 (de) * | 2002-06-28 | 2004-01-02 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine, Steuergerät zum Durchführen des Verfahrens und Brennkraftmaschine |
DE10236507A1 (de) * | 2002-08-09 | 2004-02-19 | Aft Atlas Fahrzeugtechnik Gmbh | Steuereinrichtung zum Verstellen des Drehwinkels einer Nockenwelle |
DE10244540A1 (de) * | 2002-09-25 | 2004-04-08 | Robert Bosch Gmbh | Verfahren zum Regeln der Position eines Nockenwellenstellers |
DE10307307A1 (de) * | 2003-02-20 | 2004-09-09 | Siemens Ag | Verfahren zum Steuern einer Brennkraftmaschine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1605140B1 (de) * | 2004-06-09 | 2016-11-02 | Schaeffler Technologies AG & Co. KG | Verstellvorrichtung für eine Nockenwelle |
-
2005
- 2005-09-28 DE DE112005003247T patent/DE112005003247A5/de not_active Withdrawn
- 2005-09-28 US US11/577,619 patent/US7451730B2/en active Active
- 2005-09-28 WO PCT/DE2005/001720 patent/WO2006042494A1/de active IP Right Grant
- 2005-09-28 DE DE502005003033T patent/DE502005003033D1/de active Active
- 2005-09-28 EP EP05791470A patent/EP1802851B1/de active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5289805A (en) * | 1992-03-05 | 1994-03-01 | Borg-Warner Automotive Transmission & Engine Components Corporation | Self-calibrating variable camshaft timing system |
DE10038354A1 (de) * | 2000-08-05 | 2002-02-28 | Atlas Fahrzeugtechnik Gmbh | Steuereinrichtung zum Verstellen des Drehwinkels einer Nockenwelle |
JP2002161763A (ja) * | 2000-11-24 | 2002-06-07 | Unisia Jecs Corp | 電磁式可変バルブタイミング装置の制御装置 |
US20030000498A1 (en) * | 2001-07-02 | 2003-01-02 | Mathews David Stewart | Target wheel tooth detection |
EP1375833A1 (de) * | 2002-06-28 | 2004-01-02 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine, Steuergerät zum Durchführen des Verfahrens und Brennkraftmaschine |
DE10236507A1 (de) * | 2002-08-09 | 2004-02-19 | Aft Atlas Fahrzeugtechnik Gmbh | Steuereinrichtung zum Verstellen des Drehwinkels einer Nockenwelle |
DE10244540A1 (de) * | 2002-09-25 | 2004-04-08 | Robert Bosch Gmbh | Verfahren zum Regeln der Position eines Nockenwellenstellers |
DE10307307A1 (de) * | 2003-02-20 | 2004-09-09 | Siemens Ag | Verfahren zum Steuern einer Brennkraftmaschine |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 2002, no. 10 10 October 2002 (2002-10-10) * |
Also Published As
Publication number | Publication date |
---|---|
EP1802851A1 (de) | 2007-07-04 |
EP1802851B1 (de) | 2008-02-27 |
DE502005003033D1 (de) | 2008-04-10 |
US7451730B2 (en) | 2008-11-18 |
US20070245989A1 (en) | 2007-10-25 |
DE112005003247A5 (de) | 2007-09-27 |
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