WO2016124183A1 - Verfahren zum schutz eines hydrostatischen kupplungsaktors, insbesondere für ein fahrzeug - Google Patents
Verfahren zum schutz eines hydrostatischen kupplungsaktors, insbesondere für ein fahrzeug Download PDFInfo
- Publication number
- WO2016124183A1 WO2016124183A1 PCT/DE2016/200031 DE2016200031W WO2016124183A1 WO 2016124183 A1 WO2016124183 A1 WO 2016124183A1 DE 2016200031 W DE2016200031 W DE 2016200031W WO 2016124183 A1 WO2016124183 A1 WO 2016124183A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clutch
- clutch actuator
- pressure
- threshold
- actuator
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/066—Control of fluid pressure, e.g. using an accumulator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0212—Details of pistons for master or slave cylinders especially adapted for fluid control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/102—Actuator
- F16D2500/1021—Electrical type
- F16D2500/1023—Electric motor
- F16D2500/1024—Electric motor combined with hydraulic actuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/102—Actuator
- F16D2500/1026—Hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/104—Clutch
- F16D2500/10406—Clutch position
- F16D2500/10412—Transmission line of a vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/302—Signal inputs from the actuator
- F16D2500/3024—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/302—Signal inputs from the actuator
- F16D2500/3026—Stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/51—Relating safety
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/70—Details about the implementation of the control system
- F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
- F16D2500/70402—Actuator parameters
- F16D2500/70406—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/70—Details about the implementation of the control system
- F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
- F16D2500/70402—Actuator parameters
- F16D2500/7041—Position
Definitions
- the invention relates to a method for protecting a hydrostatic
- Clutch actuator which comprises a hydrostatic transmission path with a master cylinder, wherein in the master cylinder, a hydraulic fluid for actuating a clutch is displaced and a pressure of the hydraulic fluid is determined, which is compared with an overpressure threshold.
- the hydrostatic clutch actuator may additionally comprise a pressure sensor for determining pressure values in the hydrostatic path, wherein a control device stores the pressure value determined by the pressure sensor, evaluates and thus can also protect against overpressure.
- a hydrostatic clutch actuator is to be understood below to mean an actuator having a hydrostatic transmission path, for example a pressure line with hydraulic fluid, the pressure of which is detected by the pressure sensor. Due to the displacement of the hydraulic fluid in the hydrostatic transmission path, the clutch is actuated.
- a piston in the master cylinder of the clutch actuator is adjusted by an electric motor.
- the hydraulic fluid in the system is used to actuate a piston in the slave cylinder.
- the piston of the slave cylinder acts on the lever spring tips of a plate spring, which then lift the clutch plate from the clutch disc and upon actuation thus interrupting the transmission of Kupplungsmonnent on the clutch. Unbiased, the preloaded lever spring closes the clutch.
- An existing overpressure protection in a hydraulic clutch actuator in the dual-clutch transmissions is that upon reaching a predefined very high pressure levels of the hydrostatic clutch actuator is opened immediately and until the pressure falls again below a low predefined pressure value. This action is performed by the hydrostatic clutch actuator independently.
- the clutch actuator When combining a non-actuated closed clutch with a hydrostatic clutch actuator, the clutch actuator can be moved to a high position to open the clutch. It is imperative that the pressure maximum be overcome. In this open clutch position, the clutch actuator can now remain for a longer time. The maximum pressure may be increased by speed of rotation, wear on the friction partners of the clutch and / or by an expansion of the hydraulic fluid. With the temperature expansion, the clutch can even be fully opened by this effect, so that the pressure rises sharply when mechanical limits at the end of the pressure curve are reached. If the clutch is now closed and the pressure minimum is higher than the permitted pressure threshold, the hydrostatic clutch actuator in this case tries to open the clutch actuator as quickly as possible. Consequently, the pressure increases even further until
- the invention has for its object to provide a method for protecting a hydrostatic see Kupplungsaktors, which can also be used in couplings with lever spring (disc spring), which is actuated by a hydrostatic clutch actuator.
- the object is achieved in that upon reaching the overpressure threshold motion information of the clutch actuator is evaluated and an opening or closing of the clutch actuator in response to the movement information of the clutch actuator is caused. Due to the simultaneous evaluation of the pressure and the movement information, an overpressure situation, no matter in which direction on the pressure curve of the clutch actuator moves reliably detected and derived from it measures to reduce the pressure occurring in the hydrostatic circuit.
- Such methods are not only effective for lever spring (Belleville) couplings, but are generally applicable to both un-actuated open clutches and unactuated clutches. It is assumed that the changes to the pressure characteristic due to the movement are significantly greater than other effects and the clutch actuator remains only in the fully closed and fully open positions
- the clutch actuator is moved in the direction of the opening clutch when the pressure exceeds the excess pressure threshold and the clutch actuator remains in its position. Since this mechanical limitations of the clutch actuator are achieved, the opening of the clutch actuator makes sense, which should be advantageously set before reaching the pressure threshold by the maximum pressure.
- the clutch actuator is moved in the direction of closing clutch when the movement information of the clutch actuator indicates that the clutch actuator opens the clutch and the pressure thereby exceeds the excess pressure threshold.
- Clutch actuator closes the clutch from the open state and the pressure exceeds the overpressure threshold.
- the clutch actuator is opened and closed on the basis of reaching the overpressure threshold until a release pressure threshold is reached, which is smaller than the overpressure threshold.
- This release pressure threshold which is set by a continuously changing opening and closing of the clutch actuator, allows the actuation of the clutch actuator in a pressure range in which an overload of the system is prevented.
- the position of the clutch actuator is stored as limit value when the overpressure threshold is reached, whereby upon opening and closing of the clutch actuator due to the overpressure threshold being reached, the limit value is reached. value is maintained. This ensures that the Druckmaxinnunn is not exceeded due to the predetermined position of the clutch actuator and thus destruction or damage to the hydrostatic clutch actuator is prevented.
- the movement of the clutch actuator in the direction of the opening clutch is allowed from the limit value or the movement of the clutch actuator in the direction of the closing clutch up to the limit value.
- the hydrostatic clutch actuator is moved in pressure ranges, which allows a reliable trouble-free operation of the clutch.
- the limiting value of the opening clutch is increased over time, while the limiting value of the closing clutch is reduced over time. Since the limit value limits the range of motion of the clutch actuator, it is changed over time, assuming that the clutch actuator does not reach the overpressure threshold.
- FIG. 2 is a schematic diagram of a hydrostatic clutch actuation system with a hydrostatic transmission path
- Fig. 3 is a pressure-displacement characteristic of the hydrostatic clutch actuator.
- Fig. 1 is a schematic diagram of a drive train of a hybrid vehicle is shown.
- This drive train 1 comprises an internal combustion engine 2 and an electric motor 3. Between the internal combustion engine 2 and the electric motor 3, a hybrid separating clutch 4 is arranged directly behind the internal combustion engine 2. Internal combustion engine 2 and hybrid disconnect clutch 4 are connected to each other via a crankshaft 5.
- the electric motor 3 has a rotatable rotor 6 and a fixed stator 7.
- the output shaft 8 of the hybrid disconnect clutch is connected to a transmission 9, which has a coupling element (not shown), for example includes a second clutch or a torque converter, which is arranged between the electric motor 3 and the transmission 9.
- the transmission 9 transmits the torque generated by the internal combustion engine 2 and / or the electric motor 3 to the drive wheels 10 of the hybrid vehicle.
- the electric motor 3 and the transmission 9 thereby form a transmission system 1 1, which of a hydrostatic
- Clutch actuator 12 is controlled.
- the hybrid disconnect clutch 4 arranged between the engine 2 and the electric motor 3 is closed to start the engine 2 during the running of the hybrid vehicle with the torque generated by the electric motor 3, or during one
- the hybrid separating clutch 4 which is actuated by means of a disk spring, is actuated by the hydrostatic clutch actuator 12.
- the hybrid disconnect clutch 4 In order to ensure that when the engine 2 is restarted by the electric motor 3, sufficient torque is provided by the electric motor 3, which both moves the hybrid vehicle over the drive wheels 10 without loss of comfort and at the same time actually starts the engine 2, a precise knowledge of Coupling characteristic of the hybrid disconnect clutch 4 is required, in which a clutch torque over the path of the hydrostatic clutch actuator 12 is shown.
- a clutch actuation system 13 with the hydrostatic clutch actuator 12 is shown in FIG.
- This clutch actuation system 13 comprises on the encoder side 14 a control unit 15 which actuates the hydrostatic clutch actuator 12.
- a piston 16 is displaced in the master cylinder 17 along the Kupplungsaktorweges to the right and displaces a hydraulic fluid 18 in the master cylinder 17, whereby a pressure p is built up in the master cylinder 17 via the hydraulic fluid 18 via a hydraulic line 19 a slave cylinder 20 is transmitted.
- the pressure p of the hydraulic fluid 18 causes a path change of a slave piston 21 which is transmitted to the hybrid disconnect clutch 4 to operate it.
- the pressure p in the master cylinder 17 is determined by means of a pressure sensor 22, while the distance s traveled by the hydrostatic clutch actuator 12 along the actuator path is determined by a displacement sensor 23.
- FIG. 3 shows the pressure p over the path s of the hydrostatic clutch actuator 12, as determined by means of the pressure sensor 22 and the displacement sensor 23.
- the pressure p behaves in a non-actuated closed hybrid disconnect clutch 4, which is operated with a lever spring (disc spring), not linear, since it rises during the opening of the hybrid disconnect clutch 4 up to a maximum pressure and then slightly decreases again.
- the upper branch of the hysteresis curve of the pressure characteristic curve is traversed from left to right when opening the unactuated closed hybrid disconnect clutch 4.
- the lower branch of the hysteresis curve of the pressure curve is traversed when closing the unactuated closed hybrid disconnect clutch 4 from right to left.
- the hysteresis curve can be much narrower than shown in FIG. 3
- the pressure output by the pressure sensor 22 is monitored by the control unit 15 an overpressure threshold p s compared and simultaneously evaluates the direction of movement of the clutch actuator 12 when the overpressure threshold p s is exceeded. Based on this evaluation, a targeted opening or closing of the clutch actuator 12 is caused.
- the clutch actuator 12 does not move in its end position after a closing movement and the pressure p measured by the pressure sensor 22 reaches the overpressure threshold p s , the pressure characteristic curve is reached when the mechanical limit at the clutch-open end is reached. Then, the clutch actuator 12 is opened, meaning that it is moving in the direction of closing the hybrid disconnect clutch 4.
- the clutch actuator 12 moves to higher positions s in the pressure characteristic, which means that the hybrid disconnect clutch 4 is opened and the clutch actuator 12 reaches a pressure p exceeding the overpressure threshold p s during this movement, the clutch actuator 12 is opened, ie Hybrid disconnect clutch 4 is closed by the movement of the clutch actuator 12.
- the clutch actuator 12 moves to smaller positions s, which corresponds to a closing of the hybrid disconnect clutch 4 starting from an open state and if the overpressure threshold p s is reached, then the clutch actuator 12 is closed to prevent a further increase in the pressure p, ie the hybrid disconnect clutch 4 will be opened. In the case of opening the clutch actuator, the opening and closing of the
- This release pressure threshold PF represents a pressure threshold that is smaller than the excess pressure threshold p s and in which it is assumed that the
- Clutch actuator 12 is operated in pressure ranges, where damage to the
- Clutch actuator 12 is reliably prevented.
- a position of the clutch actuator 12 is detected by the displacement sensor 23, which is stored as a limiting value SB in the control unit 15.
- the limiting value SB is kept constant. This has the consequence that after reaching the Freigabetikschwelle PF when opening the clutch actuator 12 maximum position of the current limiting value SB (open) can be achieved, while closing the
- Clutch actuator 12 represents. In order to be able to actuate the clutch actuator 12 normally again after setting the release pressure threshold PF, the limit value SB (open) is slowly increased over time, while the limiting value SB (closing) is slowly decreased over time as the clutch actuator closes, whereby the clutch actuator 12 again receives a greater freedom of movement.
- the hydrostatic clutch actuator 12 in combination with an unactuated closed hybrid disconnect clutch 4 is safely protected against overpressure. This is particularly important in borderline designed coupling systems of importance. By evaluating a pressure information and a movement information of the hydrostatic clutch actuator 12 when pressure limits are reached, a targeted opening or closing of the clutch actuator 12 is initiated to avoid overpressure damage.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020177021099A KR102532020B1 (ko) | 2015-02-02 | 2016-01-25 | 특히 차량을 위한 정유압 클러치 액추에이터의 보호 방법 |
DE112016000568.7T DE112016000568A5 (de) | 2015-02-02 | 2016-01-25 | Verfahren zum Schutz eines hydrostatischen Kupplungsaktors, insbesondere für ein Fahrzeug |
CN201680007357.XA CN107208719B (zh) | 2015-02-02 | 2016-01-25 | 用于保护尤其用于车辆的静液压的离合器执行器的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015201714 | 2015-02-02 | ||
DE102015201714.1 | 2015-02-02 |
Publications (1)
Publication Number | Publication Date |
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WO2016124183A1 true WO2016124183A1 (de) | 2016-08-11 |
Family
ID=55486417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2016/200031 WO2016124183A1 (de) | 2015-02-02 | 2016-01-25 | Verfahren zum schutz eines hydrostatischen kupplungsaktors, insbesondere für ein fahrzeug |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR102532020B1 (de) |
CN (1) | CN107208719B (de) |
DE (2) | DE102016200949A1 (de) |
WO (1) | WO2016124183A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017107494B4 (de) * | 2017-04-07 | 2023-02-02 | Schaeffler Technologies AG & Co. KG | Verfahren zur Prüfung einer mechanischen Blockade eines automatisierten Kupplungsbetätigungssystems |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012083918A1 (de) * | 2010-12-23 | 2012-06-28 | Schaeffler Technologies AG & Co. KG | Hydraulisches kupplungssystem |
DE102011085127A1 (de) | 2011-10-24 | 2013-04-25 | Schaeffler Technologies AG & Co. KG | Einrichtung zur Betätigung einer Doppelkupplung, Verfahren zum Steuern derselben und Verfahren zum Schützen einer Einrichtung zur Betätigung einer Doppelkupplung |
DE102012220179A1 (de) * | 2011-11-24 | 2013-05-29 | Schaeffler Technologies AG & Co. KG | Verfahren zur Überprüfung einer korrekten Befüllung eines hydraulischen Kupplungssystems |
DE102013205237A1 (de) * | 2012-04-16 | 2013-10-17 | Schaeffler Technologies AG & Co. KG | Aktorsystem zur hydraulischen Kupplungsbetätigung |
DE102014203219A1 (de) * | 2013-03-18 | 2014-09-18 | Schaeffler Technologies Gmbh & Co. Kg | Verfahren zur Bestimmung einer Vorsteuerspannung eines Elektromotors in einem hydrostatisch betätigten Kupplungssystem, vorzugsweise in einem automatisierten Schaltgetriebe eines Kraftfahrzeuges |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007038150B4 (de) * | 2007-08-13 | 2010-04-29 | Magna Powertrain Ag & Co Kg | Steuerverfahren für Kupplungsanordnung |
DE112011101223A5 (de) * | 2010-04-08 | 2013-01-24 | Schaeffler Technologies AG & Co. KG | Verfahren zum Steuern einer automatisierten Kupplung |
JP5746319B2 (ja) * | 2010-04-12 | 2015-07-08 | シェフラー テクノロジーズ アクチエンゲゼルシャフト ウント コンパニー コマンディートゲゼルシャフトSchaeffler Technologies AG & Co. KG | 自動化されたクラッチの制御方法 |
CN102971548B (zh) * | 2010-06-28 | 2016-07-06 | 舍弗勒技术股份两合公司 | 用于控制自动离合器的方法 |
DE112013002025B4 (de) * | 2012-04-11 | 2022-02-17 | Schaeffler Technologies AG & Co. KG | Verfahren zum Bestimmen und Steuergerät zur Bestimmung einer Position eines hydrostatischen Aktors sowie Positionssensor |
-
2016
- 2016-01-25 WO PCT/DE2016/200031 patent/WO2016124183A1/de active Application Filing
- 2016-01-25 CN CN201680007357.XA patent/CN107208719B/zh active Active
- 2016-01-25 DE DE102016200949.4A patent/DE102016200949A1/de not_active Withdrawn
- 2016-01-25 KR KR1020177021099A patent/KR102532020B1/ko active IP Right Grant
- 2016-01-25 DE DE112016000568.7T patent/DE112016000568A5/de active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012083918A1 (de) * | 2010-12-23 | 2012-06-28 | Schaeffler Technologies AG & Co. KG | Hydraulisches kupplungssystem |
DE102011085127A1 (de) | 2011-10-24 | 2013-04-25 | Schaeffler Technologies AG & Co. KG | Einrichtung zur Betätigung einer Doppelkupplung, Verfahren zum Steuern derselben und Verfahren zum Schützen einer Einrichtung zur Betätigung einer Doppelkupplung |
DE102012220179A1 (de) * | 2011-11-24 | 2013-05-29 | Schaeffler Technologies AG & Co. KG | Verfahren zur Überprüfung einer korrekten Befüllung eines hydraulischen Kupplungssystems |
DE102013205237A1 (de) * | 2012-04-16 | 2013-10-17 | Schaeffler Technologies AG & Co. KG | Aktorsystem zur hydraulischen Kupplungsbetätigung |
DE102014203219A1 (de) * | 2013-03-18 | 2014-09-18 | Schaeffler Technologies Gmbh & Co. Kg | Verfahren zur Bestimmung einer Vorsteuerspannung eines Elektromotors in einem hydrostatisch betätigten Kupplungssystem, vorzugsweise in einem automatisierten Schaltgetriebe eines Kraftfahrzeuges |
Also Published As
Publication number | Publication date |
---|---|
DE102016200949A1 (de) | 2016-08-04 |
CN107208719A (zh) | 2017-09-26 |
KR20170115496A (ko) | 2017-10-17 |
CN107208719B (zh) | 2019-07-09 |
KR102532020B1 (ko) | 2023-05-12 |
DE112016000568A5 (de) | 2017-11-09 |
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