EP1573175A1 - Anordnung zum verstellen der drehwinkelrelation zwischen nockenwelle und kurbelwelle - Google Patents
Anordnung zum verstellen der drehwinkelrelation zwischen nockenwelle und kurbelwelleInfo
- Publication number
- EP1573175A1 EP1573175A1 EP03753275A EP03753275A EP1573175A1 EP 1573175 A1 EP1573175 A1 EP 1573175A1 EP 03753275 A EP03753275 A EP 03753275A EP 03753275 A EP03753275 A EP 03753275A EP 1573175 A1 EP1573175 A1 EP 1573175A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control unit
- arrangement
- camshaft
- crankshaft
- angle
- 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
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
- F01L1/352—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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/266—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the computer being backed-up or assisted by another circuit, e.g. analogue
-
- 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
-
- 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
Definitions
- the invention relates to an arrangement for adjusting the angle of rotation relation between camshaft and crankshaft according to the preamble of patent claim 1.
- the crankshaft drives one or more camshafts via a primary drive, which is designed, for example, as a toothed belt.
- a camshaft gear is attached to each camshaft, via which the primary drive drives the camshaft.
- the crankshaft angle of rotation is translated at any time, with 720 ° crankshaft angle of rotation ⁇ «being converted into 360 ° camshaft angle of rotation ⁇ N.
- the operating properties of an internal combustion engine can be optimized, in particular with regard to fuel consumption, exhaust gas emission and smooth running, if the system coupled via the primary drive can be changed between the camshaft and the crankshaft.
- DE 100 38 354 A1 discloses an arrangement for adjusting the angle of rotation relationship between the camshaft and the crankshaft by means of a swashplate mechanism.
- An additional drive works here a swash plate gear, which is arranged between the camshaft gear and the camshaft, additionally on the camshaft. This means that the camshaft can be adjusted relative to the crankshaft.
- the object of the invention is to demonstrate a simple and inexpensive arrangement for adjusting the angle of rotation relationship between the camshaft and crankshaft.
- such an arrangement has a modular structure, so that the various tasks of such an arrangement are distributed over a number of control units, which in turn can be arranged independently of one another
- the advantage of the invention is that such a structure is very inexpensive because functions of other control units can also be used.
- Another advantage of the invention is that individual control devices of the arrangement can be dimensioned smaller. With such an arrangement it is also possible to perform the tasks depending on certain mechanical and / or electrical parameters, such as e.g. to distribute the power, the current and the voltage to the most suitable modules, in particular control units, that best meet the requirements.
- the setpoint can be specified by the engine control. It is also an advantage if the setpoint is an angle, a speed, a current or a torque value that is particularly easy to measure and control.
- Figure 1 Arrangement with target angle specification.
- Figure 2 Arrangement with target speed specification
- FIG. 1 shows an arrangement in which the setpoint for the control device 7 is specified by the engine control unit 1.
- This is a target angle, which is to be set as a specific angle of rotation between crankshaft 6 and camshaft 5 with respect to a basic position.
- the engine control unit 1 which defines this target angle 1, actually controls the internal combustion engine which drives the crankshaft 6.
- This setpoint angle serves as a reference value for a second control unit 2, which at the same time also records measured values from sensors 8a, 8b, which record the actual value of the variable to be controlled.
- sensors 8a, 8b can detect the position of camshaft and crankshaft 5, 6.
- the angle of rotation between the two shafts can be determined from the position measurements of crankshaft and camshaft 5, 6.
- This twist angle can be changed by the adjuster 4.
- the value of the setpoint angle is passed on from engine control unit 1 to a second control unit 2.
- the second control unit 2 controls an electric motor 3, which actuates the adjuster 4.
- the second control device 2 for the electric motor 3 contains the output stage for controlling the electric motor 3 and the position control of the arrangement.
- the arrangement shown is a control circuit with a control device 7 and a control system 9, the control system being the camshaft and the crankshaft 5, 6, the angle of rotation relationship of which is changed with respect to one another, and the control system is composed of the following components:
- Setpoint adjuster wherein the setpoint is generated by the engine control 1, which is transmitted to the control unit 2, in which the circuit for the setpoint adjustment is located.
- 8a, 8b are formed on the camshaft or on the crankshaft and alternatively or additionally consist of sensors that recognize the position of the electric motor or the adjuster.
- a comparator which compares the actual value with the target value, this function also being integrated in control unit 2 in the application example.
- FIG. 2 also shows an arrangement in which the setpoint for the control device 7 is specified by the engine control 1.
- the setpoint angle is not determined and passed on directly, but the setpoint speed for the electric motor 3 is determined and passed on by the engine control 1 of the internal combustion engine, with which the desired angle of rotation between the crankshaft and the camshaft can be set.
- This target speed value serves as a reference value for the control unit 2, which can simultaneously process measured values from sensors 8a, 8b, which represent the actual value of the controlled variable and the angle of rotation. These sensors 8a, 8b can, for example, detect the position of the camshaft and crankshaft 5, 6 in the controlled system 9. As an alternative or in addition, the instantaneous speed of the electric motor 3 can also be measured and then compared in the control unit 2 with the target value.
- the control unit 2 for the electric motor 3 also contains the output stage for controlling the electric motor 3. However, the position control of the arrangement is carried out by the motor controller 1, which varies the target speed accordingly until the desired state between the camshaft and crankshaft is reached. However, this position control can also be implemented in a different arrangement.
- control unit 2 can also take on other functions.
- the arrangement shown is a control circuit with a control device 7 and a control system 9, the control system being the camshaft and the crankshaft 5, 6, the angle of rotation relationship of which is changed with respect to one another, and the control system is composed of the following components:
- a setpoint adjuster composed of a plurality of control devices 1, 2, the setpoint being set by the engine controller 1 is generated, which is transmitted to the control unit 2, which contains the output stage for the electric motor.
- the position control can be accommodated both in the engine control 1 or in the control unit 2.
- a measuring device which in the exemplary embodiment is designed on the electric motor 3 in the form of a tachometer and / or is formed by the sensors 8a and 8b from the previous exemplary embodiment.
- a comparator which compares the actual value with the target value, this function also being integrated in control unit 2 in the application example.
- FIG. 3 shows an arrangement in which the setpoint for the control device 7 is given to the control unit 2 as the setpoint current or as the setpoint torque for the electric motor 3 by the engine control unit 1.
- This target current or the target torque indirectly determines or changes the angle of rotation between the camshaft and crankshaft 6, 7.
- the level of the target current or torque is specified by the engine control unit.
- the setpoint ' from the engine control 1 is forwarded to the control unit 2.
- the value influences the operating parameters for the electric motor 3, which in turn then drives the adjuster 4 more or less.
- the adjuster 4 has a swash plate mechanism which is connected to the camshaft 5 stands, which is driven by the crankshaft 6.
- current actual values are recorded in the electric motor 3 or also in the adjuster and made available to the control unit as a comparison value for the target / actual comparison.
- the engine control unit 1 which determines the target current or the target torque, actually controls the internal combustion engine which drives the crankshaft 6.
- This target current value or the target torque value serves as a reference value for the control unit 2, which at the same time also records measured values on the electric motor 3 and / or on the adjuster 4, which represent the current comparison value with the target value.
- the controlled system includes the camshaft and crankshaft 5, 6, the angle of rotation relation of which is changed by changing the operating current of the electric motor and thus also the torque or the speed of the electric motor or the adjuster.
- the associated control device consists of the following components:
- a setpoint adjuster the setpoint being generated and updated by the engine control 1 and the setpoint being transferred to the control unit 2 in which the circuit with which it is located
- Setpoint can be set.
- control device has a modular structure.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10259133 | 2002-12-18 | ||
DE10259133A DE10259133A1 (de) | 2002-12-18 | 2002-12-18 | Anordnung zum Verstellen der Drehwinkelrelation zwischen Nockenwelle und Kurbelwelle |
PCT/DE2003/002965 WO2004057161A1 (de) | 2002-12-18 | 2003-09-06 | Anordnung zum verstellen der drehwinkelrelation zwischen nockenwelle und kurbelwelle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1573175A1 true EP1573175A1 (de) | 2005-09-14 |
EP1573175B1 EP1573175B1 (de) | 2008-03-26 |
Family
ID=32403896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03753275A Expired - Lifetime EP1573175B1 (de) | 2002-12-18 | 2003-09-06 | Anordnung zum verstellen der drehwinkelrelation zwischen nockenwelle und kurbelwelle |
Country Status (5)
Country | Link |
---|---|
US (1) | US7146947B2 (de) |
EP (1) | EP1573175B1 (de) |
DE (2) | DE10259133A1 (de) |
ES (1) | ES2302940T3 (de) |
WO (1) | WO2004057161A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005015856A1 (de) | 2004-12-24 | 2006-07-13 | Daimlerchrysler Ag | Verfahren und Einrichtung zum Einstellen einer elektrodynamischen Bremse eines elektrischen Nockenwellenverstellers für eine Nockenwelle einer Brennkraftmaschine |
DE102005022714A1 (de) * | 2005-05-18 | 2006-11-23 | Schaeffler Kg | Vorrichtung mit einem elektrischen Nockenwellenversteller, einer Steuereinheit und einem zentralen Steuergerät |
JP4668150B2 (ja) * | 2006-08-31 | 2011-04-13 | トヨタ自動車株式会社 | 可変バルブタイミング装置 |
DE102016218192B3 (de) * | 2016-09-22 | 2018-01-25 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller |
US10920627B2 (en) | 2016-09-22 | 2021-02-16 | Schaeffler Technologies AG & Co. KG | Adjusting unit of an internal combustion engine |
DE102017114173A1 (de) | 2017-06-27 | 2018-12-27 | Schaeffler Technologies AG & Co. KG | Steuergerät für einen Verbrennungsmotor |
DE102019113300B3 (de) | 2019-05-20 | 2020-07-09 | Schaeffler Technologies AG & Co. KG | Verfahren zum Betrieb eines elektromechanischen Nockenwellenverstellers |
DE102019118689A1 (de) | 2019-07-10 | 2021-01-14 | Schaeffler Technologies AG & Co. KG | Verbrennungsmotor und Verfahren zum Betrieb eines elektromechanischen Nockenwellenverstellers |
DE102021134044B3 (de) | 2021-12-21 | 2023-03-16 | Schaeffler Technologies AG & Co. KG | Brennkraftmaschine und Verfahren zum Betrieb einer Brennkraftmaschine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3631733A1 (de) * | 1986-09-18 | 1988-03-24 | Kloeckner Humboldt Deutz Ag | Vorrichtung an einer brennkraftmaschine zur aenderung des foerderbeginns und/oder der ventilsteuerzeiten |
US5209202A (en) * | 1992-07-27 | 1993-05-11 | Ford Motor Company | Multiple functions cam sensing |
US5245968A (en) * | 1992-08-04 | 1993-09-21 | Ford Motor Company | System to determine cam phase and cylinder identification for a variable cam timing engine |
US5218935A (en) * | 1992-09-03 | 1993-06-15 | Borg-Warner Automotive Transmission & Engine Components Corporation | VCT system having closed loop control employing spool valve actuated by a stepper motor |
US5548995A (en) * | 1993-11-22 | 1996-08-27 | Ford Motor Company | Method and apparatus for detecting the angular position of a variable position camshaft |
DE29517755U1 (de) * | 1995-11-09 | 1997-03-13 | FEV Motorentechnik GmbH & Co. KG, 52078 Aachen | Verstelleinrichtung für einen nockengesteuerten Ventilbetrieb an einer Kolbenbrennkraftmaschine |
US5680837A (en) * | 1996-09-17 | 1997-10-28 | General Motors Corporation | Planetary cam phaser with worm electric actuator |
DE19918095C1 (de) * | 1999-04-21 | 2000-10-12 | Siemens Ag | Schaltung zur Steuerung mindestens eines jeweils elektromechanisch betätigten Ein- und Auslaßventils einer Brennkraftmaschine |
DE10038354C2 (de) * | 2000-08-05 | 2003-03-20 | Atlas Fahrzeugtechnik Gmbh | Steuereinrichtung zum Verstellen des Drehwinkels einer Nockenwelle |
DE10116707B4 (de) * | 2001-04-04 | 2017-01-19 | Schaeffler Technologies AG & Co. KG | Vorrichtung zur Relativverdrehung einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine |
-
2002
- 2002-12-18 DE DE10259133A patent/DE10259133A1/de not_active Withdrawn
-
2003
- 2003-09-06 WO PCT/DE2003/002965 patent/WO2004057161A1/de active IP Right Grant
- 2003-09-06 EP EP03753275A patent/EP1573175B1/de not_active Expired - Lifetime
- 2003-09-06 ES ES03753275T patent/ES2302940T3/es not_active Expired - Lifetime
- 2003-09-06 DE DE50309500T patent/DE50309500D1/de not_active Expired - Lifetime
-
2005
- 2005-06-20 US US11/156,816 patent/US7146947B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004057161A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2302940T3 (es) | 2008-08-01 |
US7146947B2 (en) | 2006-12-12 |
WO2004057161A1 (de) | 2004-07-08 |
DE10259133A1 (de) | 2004-07-01 |
US20050252469A1 (en) | 2005-11-17 |
DE50309500D1 (de) | 2008-05-08 |
EP1573175B1 (de) | 2008-03-26 |
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