WO2017101932A1 - Pumpenaktor zur kupplungs- und gangstelleraktuierung in einem getriebe eines kraftfahrzeugs - Google Patents
Pumpenaktor zur kupplungs- und gangstelleraktuierung in einem getriebe eines kraftfahrzeugs Download PDFInfo
- Publication number
- WO2017101932A1 WO2017101932A1 PCT/DE2016/200561 DE2016200561W WO2017101932A1 WO 2017101932 A1 WO2017101932 A1 WO 2017101932A1 DE 2016200561 W DE2016200561 W DE 2016200561W WO 2017101932 A1 WO2017101932 A1 WO 2017101932A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump
- drive
- control unit
- local control
- pump 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
- F16D48/02—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
- F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
- F16D2048/0233—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by rotary pump 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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0287—Hydraulic circuits combining clutch actuation and other hydraulic systems
- F16D2048/029—Hydraulic circuits combining clutch actuation with clutch lubrication or cooling
-
- 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
- F16D2300/00—Special features for couplings or clutches
- F16D2300/02—Overheat protection, i.e. means for protection against overheating
- F16D2300/021—Cooling features not provided for in group F16D13/72 or F16D25/123, e.g. heat transfer details
Definitions
- the invention relates to a pump actuator for clutch and Gangstelleraktu réelle in a transmission of a motor vehicle.
- the pump actuator can be used in a hydraulic system, such as are used in masses in multi-clutch transmissions for motor vehicles.
- Clutches for automated manual transmissions, double or multi-clutch transmissions and separable distributor and differential transmissions are designed as dry or wet clutches. They are operated either electromechanically or hydraulically, the hydraulic actuation due to the high power density of the actuators offers advantages in terms of the spatial arrangement in the transmission.
- the clutches can be operated directly, for example by means of central injector or CSC, and additional friction losses through mechanical transmission or the like can be avoided.
- a hydraulic system for clutch and gear actuator actuation is known.
- the system includes a pump which can actuate a dual-clutch transmission via a valve logic with several different valves.
- the valves are distributed over the system. As a result, the assembly cost is increased and there are losses in the hydraulic lines due to viscous wall friction through long distances between the valves.
- the object is achieved according to the invention by a pump actuator having the features of claim 1.
- Preferred embodiments of the invention are specified in the subclaims, which individually or in combination may constitute an aspect of the invention.
- the invention relates to a pump actuator for clutch and Gangstelleraktu réelle in a transmission of a motor vehicle, comprising a pump for conveying a working fluid, a drive for actuating the pump, a local control unit for controlling the drive, and at least one hydraulic interface for actuating at least one Consumer, wherein at least one cooling device cools the drive and the local control unit.
- the pump actuator can be designed as a controllable electrically driven hydraulically acting volume power supply unit.
- the pump, the drive and the local control unit together an electric
- Form pump actuator This is also abbreviated as EPA.
- the pump actuator can include all components as a compact unit, so that simple, space-saving and absolutely intrinsically safe hydraulic system for the control of a clutch transmission can be provided.
- the pump actuator can have a high degree of integration in a clutch transmission and for example also be easily integrated into existing systems.
- the pump actuator can have a robust construction due to the structure.
- Pump actuator are installed almost anywhere in the vehicle and self-sufficient from the central control unit of a motor vehicle, in English as an electronic control unit or abbreviated ECU, operated. It can continue to be saved long lines to the central control unit of the motor vehicle, so that short ways for the signal and power transmission can be provided.
- the pump may be configured as a single pump or as a reversing pump.
- the pump can only promote working fluid, for example a hydraulic oil, engine oil or transmission oil, from a reservoir to a consumer, for example a partial clutch of a double clutch, a gear regulator or a parking brake in order to actuate the consumer.
- working fluid for example a hydraulic oil, engine oil or transmission oil
- a second pump or a return element such as a return spring
- the pump may have a first conveying direction and a second conveying direction for the working fluid, for example a hydraulic oil, engine oil, engine oil or gear oil.
- the first conveying direction or the second conveying direction of the reversing pump can be set by the direction of rotation of the drive, in particular an electric motor.
- the reversing pump can preferably be a fluid pump that can be operated in opposite directions of flow.
- the fluid pump may in particular be a hydraulic pump.
- the hydraulic pump is preferably designed in displacement design.
- the hydraulic pump may be designed as a vane pump, gear pump, for example external gear pump or internal gear pump, gerotor pump or piston pump, for example axial piston pump or radial piston pump.
- the reversing pump with the first conveying direction can actuate a first consumer, for example a partial coupling, a gear regulator or a parking brake, and with the second conveying direction a second consumer or convey the working fluid from the first consumer into a reservoir.
- the connection of the pump with the consumers can be done using the hydraulic interfaces.
- the drive can be designed as an electric motor.
- the drive may be, for example, a synchronous motor, asynchronous motor, permanent-magnet motor, for example with a magnet made of ferrite or rare earth, a separately excited motor or a motor with variable motor constant.
- a valve arrangement for example a two-pressure valve or directional control valve, can be connected to the first conveying direction and the second conveying direction of the reversing pump in order to prevent the Pump to connect to a reservoir for the working fluid.
- the first delivery direction output of the reversing pump can be connected to a first side of the two-pressure valve, and a second side of the two-pressure valve opposite the first side can be connected to the second delivery direction output of the reversing pump. be connected to sierpumpe.
- the two-pressure valve may be configured as an and-valve. By means of the two-pressure valve it can be ensured that only one conveying direction side can be connected to the reservoir.
- the directional control valve may have different switching positions in order to connect the first delivery direction output or the second delivery direction output to the reservoir. In this way, a pump actuator with a simple and compact structure can be provided.
- the cooling device can be designed as a heat exchanger or as an electric fan to dissipate the heat generated during the operation of the pump actuator from the drive and the local control unit. When configured as an electric fan, the cooling device may blow cool air to the drive and the local controller.
- the cooling device can be arranged either directly on the drive and / or the local control unit or via cooling lines to dissipate the heat.
- the cooling device may passively, for example, a arranged on the drive and / or local control device metallic heat sink, or active, for example, with the aid of a pump and a cooling liquid, the heat dissipate from the drive and / or the local control unit.
- At least one sensor line connects the local control device to an output of the pump, in particular to a hydraulic path extending to the at least one hydraulic interface, for detecting and transmitting a parameter for controlling the drive by the local control device.
- the sensor line can either conduct an electrical signal to the local control unit or be a hydraulic circuit, which transmits, for example, a pressure of a volume flow to the local control unit.
- the sensor line can not be connected directly to the output of the pump, but at a hydraulic distance between a pump outlet, for example, a first delivery direction output of the pump, and the hydraulic interface be arranged.
- the parameter detected by the sensor line can be, for example, the pressure of the volume flow of the delivered working fluid, a temperature of the working fluid and / or a rotational speed of the pump. In this way, the control of the drive of the pump actuator can be simplified.
- At least one cooling device is arranged on the drive and / or on the local control unit for cooling the drive and / or the local control unit.
- the resulting in the drive and / or local control unit heat can be transferred directly into the cooling device.
- the cooling device can immediately cool the drive and the local control unit.
- Cooling device can dissipate the heat from the drive and / or local control unit with the aid of a cooling liquid.
- the cooling liquid may be the working fluid or another cooling fluid, for example water, liquid metals, oil or alcohol.
- the at least one hydraulic interface is connected to a second cooling device, in particular a heat exchanger.
- the second heat exchanger can deliver the heat present in the working fluid to the environment, so that the subsequent actuation of a consumer connected to the hydraulic interface, for example a partial clutch, can not be adversely affected by a working fluid that is too hot. In this way, the reliability of the actuated by the pump actuator transmission can be improved.
- the cooling device for cooling the drive and / or the local control device is integrated in a drive housing and / or in a housing of the local control device.
- the cooling device can be formed as cooling channels, which are integrated, for example, in the drive housing.
- a cooling liquid can flow in order, for example, to dissipate the heat generated in the drive directly.
- an external cooling device that can be arranged on the drive or local control unit can be saved, so that a compact pump actuator can be made available.
- a drive housing and / or a housing of the local control unit is arranged in the cooling device and the cooling device uses the working fluid as cooling fluid for cooling the drive and / or the local control unit.
- the cooling device may be formed as a cooling sleeve with cooling channels, which completely surrounds the drive and / or the local control unit, or the cooling device may be formed as a housing which completely surrounds the drive and / or the local control unit.
- the drive and / or the local control unit can be completely surrounded by the cooling liquid, so that the resulting heat can be dissipated directly into the cooling liquid. In this way, the reliability of the pump actuator can be improved and the life of the pump actuator can be increased.
- a sensor in particular a pressure difference sensor, is arranged on the local control device, wherein at least one sensor line is connected to the sensor.
- the pressure difference sensor can determine the pressure both on the first conveying direction side and on the second conveying direction side. Since only one conveying direction side has an increased pressure in a reversing pump and the other conveying direction side is balanced with the environment, a signal from a conveying direction side can be sufficient to determine the pressure.
- the structure of the pump actuator can be simplified, instead of providing a separate pressure sensor for each delivery direction side of a pump, the pressure can be determined by a pressure difference sensor.
- the pressure difference sensor can measure the pressure of the volumetric flow of the working fluid.
- the drive can operate the pump so that the pump can provide the required pressure for actuating the clutch and / or the gear selector.
- the pump is a variable displacement pump. In this way, by adjusting the volume of an adjusting piston of the pump, the flow rate of the pump can be adjusted.
- an adjusting piston may be arranged, or an adjusting piston arranged only on one conveying direction side and the other conveying direction side has a constant delivery volume.
- the drive and the pump are preferably connected to one another via a main shaft, the main shaft being mounted both in the drive and in the pump.
- the main shaft can be stored in the drive via a bearing and in the pump via the pump spectacles.
- the bearing of the main shaft in the drive according to the requirements of the pump actuator may be arranged closer to the pump or further away from the pump.
- the bearing in the drive can be a ball bearing, which is supported by a bearing holder on the housing of the drive. In this way, the drive and the pump can be connected to a module, which makes a compact and simple
- FIG. 1 is a schematic view of a first embodiment of a pump actuator
- Fig. 2 is a schematic view of a second embodiment of a pump actuator
- FIG. 3 shows a schematic view of a third embodiment of a pump actuator
- FIG. 4 shows a schematic view of a fourth embodiment of a pump actuator
- 5 shows a schematic view of a fifth embodiment of a pump actuator
- 6 shows a schematic view of a sixth embodiment of a pump actuator
- Fig. 7 is a schematic view of a seventh embodiment of a pump actuator
- Fig. 8 is a schematic view of an eighth embodiment of a pump actuator
- Fig. 9 is a schematic view of a ninth embodiment of a pump actuator
- FIG. 10 shows a schematic view of a tenth embodiment of a pump actuator
- Fig. 1 1 is a schematic view of an eleventh embodiment of a pump actuator
- Fig. 12 is a schematic view of a twelfth embodiment of a pump actuator.
- Fig. 13 is a schematic view of a thirteenth embodiment of a
- a first embodiment of a pump actuator 10 is shown.
- the pump actuator 10 includes a pump 12 in the form of a reversing pump.
- the pump 12 is connected to a drive 14 in the form of an electric motor.
- the drive 14 is connected to a local control unit 16.
- the local control unit 16 controls the drive 14 and thereby the pump 12.
- the pump 12 is a reversing pump having a first conveying direction and a second conveying direction opposite to the first conveying direction. The selection of the conveying direction takes place with the help of the direction of rotation of the drive 14.
- the first conveying direction of the pump 12 is shown as an arrow to the left and the second conveying direction of the pump 12 is shown as an arrow to the right.
- the first conveying direction of the pump 12 is connected to a reservoir 18 for the working fluid, in this embodiment
- Hydraulic oil connected.
- the second conveying direction of the pump 12 is via a hydraulic path with a hydraulic interface A for actuating a consumer, not shown, of a transmission, not shown, for example, a partial Coupling a double clutch, connected.
- the pump actuator 10 has a sensor line 20 which connects the hydraulic path to the hydraulic interface A with the local control unit 16, so that a sensor in the local control unit 16 can check an actuation parameter in the hydraulic path, for example the volume flow of the working fluid, and depending on the measured sensor value, the local control unit 16 can control the drive 14.
- FIG. 2 shows a second embodiment of a pump actuator 22.
- the pump actuator 22 comprises a pump 12, a drive 14 and a local control unit 16.
- the first delivery direction output of the pump 12 is connected to the reservoir 18 via a cooling device 24, for example a heat exchanger.
- the cooling device 24 is arranged on the local control unit 16 and the drive 14 and cools them with the aid of the working fluid.
- the hydraulic interface A of the pump actuator 22 is in this embodiment connected to a second cooling device 26 in the form of an external heat exchanger to deliver the heat present in the working fluid to the environment.
- the local control unit 16 uses the sensor line 20 to check a parameter in the hydraulic path to control the drive 14 and thereby the pump 12.
- FIG. 3 shows a third embodiment of a pump actuator 28.
- the pump actuator 28 comprises a pump 12, a drive 14 and a local control unit 16.
- the local control unit 16 and the drive 14 are arranged in this embodiment in a cooling device 30, for example a housing, and completely surrounded by working fluid.
- the hydraulic interface A is connected to a second cooling device 26 in order to deliver the heat taken up by the working fluid in the cooling device 30 to the surroundings of the local control device 16 and / or the drive.
- the pump actuator 32 comprises a pump 12, a drive 14 and a local control unit 16.
- the first delivery direction output of the pump 12 is provided with a hydraulic interface B for actuating a second consumer, for example a gear regulator. connected.
- the pump actuator 32 comprises a two-pressure valve 34.
- the two-pressure valve 34 is connected at a first side to the first delivery direction output of the pump 12 and connected to the second delivery direction output of the pump 12 with a second side opposite the first side.
- the two-pressure valve 34 is connected to the reservoir 18 for the working fluid. Due to the two-pressure valve 34, only the hydraulic interface A or the second hydraulic interface B can always be connected to the reservoir 18. This is determined by means of the conveying direction of the pump 12.
- the pump actuator 36 comprises a pump 12, a drive 14 and a local control unit 16.
- the first delivery direction output of the pump 12 is connected via a cooling device 24 to the hydraulic interface B.
- the pump actuator 36 has a two-pressure valve 34.
- FIG. 6 shows a sixth embodiment of a pump actuator 38.
- the pump actuator 38 comprises a pump 12, a drive 14 and a local control unit 16.
- a pressure difference sensor 40 is arranged on the local control unit 16.
- the pressure difference sensor 40 is connected via the sensor line 20 with the hydraulic path to the hydraulic interface A.
- the pressure difference sensor 40 is connected via the sensor line 42 with the hydraulic path to the hydraulic interface B. Since only one working pressure is present either in the hydraulic path to the hydraulic interface A or to the hydraulic interface B, and the respective other hydraulic path is balanced with the environment, receipt of a signal for the local control device 16 is sufficient for the drive 14 Taxes.
- FIG. 7 shows a seventh embodiment of a pump actuator 44.
- the pump actuator 44 comprises a pump 46, a drive 14 and a local control unit 16.
- the pump 46 is a one-sided variable displacement pump that can be adjusted by the local control unit 16 as a function of the value transmitted through the sensor line 20.
- the delivery volume of the pump 46 is adjustable only at the second delivery direction output and constant at the first delivery direction output.
- 8 shows an eighth embodiment of a pump actuator 48.
- the pump actuator 48 comprises a pump 50, a drive 52 and a local control unit 16.
- the pump 50 and the drive 52 are connected via a common main shaft 54.
- the hydraulic route to the hydraulic interface A or B, as well as the two-pressure valve and the reservoir are not shown.
- the main shaft 54 is supported in the pump 50 by means of pumping goggles 56.
- the pump 50 still has a secondary shaft 58.
- the auxiliary shaft 58 and the main shaft 54 each have a gear 60.
- the secondary shaft 58 is connected to the main shaft 54 to transmit a torque of the main shaft 54.
- the pump 50 includes a pump housing 62 in which all components of the pump 50 are arranged.
- the main shaft 54 via a bearing 64, for example, a ball bearing, stored.
- the bearing 64 is held in a bearing holder 66.
- the drive 52 has a rotor 68 arranged on the main shaft and a stator 70 surrounding the rotor 68.
- FIG. 9 shows a ninth embodiment of a pump actuator 80.
- the pump actuator 80 comprises a pump 50, a drive 82 and a local control unit 16. The hydraulic distance to the hydraulic interface A or B, and the two-pressure valve and the reservoir are not shown. In contrast to FIG.
- Fig. 10 shows a tenth embodiment of a pump actuator 84.
- the pump actuator 84 comprises a pump 50, a drive 14 and a local control unit 16. The hydraulic distance to the hydraulic interface A or B, and the two-pressure valve and the reservoir are not shown.
- the drive 86 in the drive housing 88 has cooling channels 90 for cooling the drive 86.
- FIG. 1 an eleventh embodiment of a pump actuator 92 is shown.
- the pump actuator 92 comprises a pump 50, a drive 94 and a local control unit 16.
- the hydraulic distance to the hydraulic interface A or B, as well as the two-pressure valve and the reservoir are not shown.
- the local control unit 16 is arranged laterally on the drive housing 96, so that the local control unit 16 can be cooled by means of the cooling channels 90 of the drive housing 96.
- the rotor position sensor 76 is integrated in the drive housing 96.
- Fig. 12 shows a twelfth embodiment of a pump actuator 98.
- the pump actuator 98 comprises a pump 50, a drive 100 and a local control unit 16.
- the hydraulic distance to the hydraulic interface A or B, and the two-pressure valve and the reservoir are not shown.
- the drive housing 101 has no cooling channels, but the rotor position sensor 76 is integrated in the drive housing 101.
- the drive housing 101 is enclosed by a cooling device 102.
- the cooling device 102 is designed in the form of a sleeve, which has cooling channels 104.
- the local control device is arranged on the outside of the cooling device 102.
- a pump actuator 106 is shown.
- the pump actuator 106 includes a pump 12, a drive 108 and a local control unit 16.
- the hydraulic distance to the hydraulic interface A or B, and the two-pressure valve and the reservoir are not shown.
- the drive housing 1 10 has cooling channels 90.
- the local control unit 16 is arranged laterally on the drive housing 1 10 to be cooled by the cooling channels 90.
- an element of the pump 50 is used as a sensor target for controlling the pump actuator 106.
- the sensor 1 12 detects the gear 60 of the secondary shaft 58th LIST OF REFERENCES
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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)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112016005751.2T DE112016005751A5 (de) | 2015-12-18 | 2016-11-30 | Pumpenaktor zur kupplungs- und gangstelleraktuierung in einem getriebe eines kraftfahrzeugs |
CN201680070912.3A CN108291590B (zh) | 2015-12-18 | 2016-11-30 | 用于在机动车的变速器中进行离合器和换挡器致动的泵致动器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015225862.9 | 2015-12-18 | ||
DE102015225862.9A DE102015225862A1 (de) | 2015-12-18 | 2015-12-18 | Pumpenaktor zur Kupplungs- und Gangstelleraktuierung in einem Getriebe eines Kraftfahrzeugs |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017101932A1 true WO2017101932A1 (de) | 2017-06-22 |
Family
ID=57614103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2016/200561 WO2017101932A1 (de) | 2015-12-18 | 2016-11-30 | Pumpenaktor zur kupplungs- und gangstelleraktuierung in einem getriebe eines kraftfahrzeugs |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN108291590B (de) |
DE (2) | DE102015225862A1 (de) |
WO (1) | WO2017101932A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018007461A1 (de) * | 2018-09-21 | 2020-03-26 | Fte Automotive Gmbh | Hydraulische Vorrichtung zum Kühlen von wenigstens zwei nasslaufenden Kupplungen in einem Kraftfahrzeug |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0879724A2 (de) * | 1997-05-22 | 1998-11-25 | Still Gmbh | Flurförderzeug mit einem elektrischen Aggregrat |
EP1396465A2 (de) * | 2002-09-06 | 2004-03-10 | Still Gmbh | Flurförderzeug mit einem elektrischen Antrieb |
DE112005000814B4 (de) | 2004-06-30 | 2014-11-27 | Magna Powertrain Ag & Co. Kg | Hydrauliksystem für die Steuerung zweier Kupplungen eines Getriebes |
WO2015067268A1 (de) * | 2013-11-05 | 2015-05-14 | Schaeffler Technologies AG & Co. KG | Hydraulikanordnung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5262833B2 (ja) * | 2009-02-27 | 2013-08-14 | 日産自動車株式会社 | 車両のクラッチ制御装置 |
DE102011105648A1 (de) * | 2011-06-07 | 2012-12-13 | Fte Automotive Gmbh | Hydraulische Betätigungsvorrichtung für die Betätigung von Kupplungen in insbesondere einem Mehrkupplungsgetriebe für Kraftfahrzeuge |
-
2015
- 2015-12-18 DE DE102015225862.9A patent/DE102015225862A1/de not_active Withdrawn
-
2016
- 2016-11-30 CN CN201680070912.3A patent/CN108291590B/zh active Active
- 2016-11-30 DE DE112016005751.2T patent/DE112016005751A5/de active Pending
- 2016-11-30 WO PCT/DE2016/200561 patent/WO2017101932A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0879724A2 (de) * | 1997-05-22 | 1998-11-25 | Still Gmbh | Flurförderzeug mit einem elektrischen Aggregrat |
EP1396465A2 (de) * | 2002-09-06 | 2004-03-10 | Still Gmbh | Flurförderzeug mit einem elektrischen Antrieb |
DE112005000814B4 (de) | 2004-06-30 | 2014-11-27 | Magna Powertrain Ag & Co. Kg | Hydrauliksystem für die Steuerung zweier Kupplungen eines Getriebes |
WO2015067268A1 (de) * | 2013-11-05 | 2015-05-14 | Schaeffler Technologies AG & Co. KG | Hydraulikanordnung |
Also Published As
Publication number | Publication date |
---|---|
DE102015225862A1 (de) | 2017-06-22 |
CN108291590A (zh) | 2018-07-17 |
CN108291590B (zh) | 2020-04-07 |
DE112016005751A5 (de) | 2018-08-23 |
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