CN106870599B

CN106870599B - Actuation module for hydraulically actuated clutch actuation

Info

Publication number: CN106870599B
Application number: CN201611144373.1A
Authority: CN
Inventors: A·帕尔门; R·维勒克; M·格伦茨霍伊泽; M·格雷特尔; D·赫尔科默; S·施毛斯; M·齐默尔曼
Original assignee: Schaeffler Technologies AG and Co KG
Current assignee: Schaeffler Technologies AG and Co KG
Priority date: 2015-12-14
Filing date: 2016-12-13
Publication date: 2021-04-09
Anticipated expiration: 2036-12-13
Also published as: DE102015225090A1; CN106870599A

Abstract

The invention relates to an actuation module for hydraulically actuating clutches or gears in a clutch transmission, in particular in a dual clutch transmission, comprising: at least one reversible pump (12, 20, 26) for conveying a working fluid, at least one electric drive (14, 22, 28) for actuating the reversible pump (12, 20, 26), and at least one local control (16, 24, 30) for controlling the drive (14, 22, 28), wherein the reversible pump (12, 20, 26) has a first conveying direction and a conveying direction opposite to the first conveying direction. In this way, a simple manipulator module with a compact structure, high integration and a robust construction with short stroke for signal transfer and power transfer can be provided.

Description

Actuation module for hydraulically actuated clutch actuation

Technical Field

The invention relates to an actuation module for hydraulically actuating clutches or gears in a clutch transmission, in particular a dual clutch transmission. The actuating module can be used, in particular, in an actuating device, as is used on a large scale in a multi-clutch transmission of a motor vehicle.

Background

The clutches for the automatic transmission, the dual-clutch transmission or the multiple-clutch transmission and the separable distributor transmission and the differential transmission are designed as dry clutches or wet clutches. The actuation of these clutches is either effected electromechanically or hydraulically, wherein the hydraulic actuation offers advantages with regard to the spatial arrangement in the transmission due to the high power density of the actuators. The clutch can thus be actuated directly (for example by means of a central coupling or a central release), and additional frictional losses are avoided by means of a mechanical transmission or the like.

EP 1236918A discloses a hydraulic system for actuating two clutches, in which two pumps are provided, which are always fed in the same direction, each pump being used for a single clutch, wherein the engagement force of the clutch and thus the torque transmitted is adjusted by changing the rotational speed of the drive engine. In this way, the control valve can be saved as much as possible, but it is not necessarily ensured that only one of the clutches is closed. The expenditure and the space requirement for the two hydraulic pumps are enormous here.

Disclosure of Invention

Therefore, there are the following tasks: a simple manipulator module having a compact structure and high integration and a durable configuration with a short stroke for signal transmission and power transmission are provided.

According to the invention, this object is achieved by the operating module according to the invention.

The invention relates to an actuation module for hydraulically actuating clutches or gears in a clutch transmission, in particular a dual clutch transmission, comprising: at least one reversible pump for conveying a working fluid, wherein the reversible pump has a first conveying direction and a conveying direction opposite to the first conveying direction; at least one electric drive for operating the reversible pump; and at least one local controller for controlling the drive means.

The actuation module can comprise all the components as a compact unit, so that a simple, space-saving and absolutely self-reliable hydraulic system can be provided for actuating the clutch transmission. In this way, the actuation module can have a high degree of integration in the clutch transmission and can also be integrated simply into existing systems, for example. Furthermore, the actuation module can have a durable design by way of its design, and the service life of the clutch transmission is thereby increased.

The operating device can be installed almost anywhere in the motor vehicle, in particular by using a local control unit, and can be operated autonomously by a central control unit (ECU) of the motor vehicle. Furthermore, long lines to a central control of the motor vehicle can be saved, so that short distances can be provided for signal and power transmission.

The reversible pump may have a first delivery direction and a second delivery direction for a working fluid (e.g., hydraulic oil, engine oil, or transmission oil). The first conveying direction or the second conveying direction of the reversible pump can be adjusted by the direction of rotation of the drive device (in particular the electric motor). The reversible pump may preferably be a fluid pump which can be operated in the opposite conveying direction. The fluid pump may particularly relate to a hydraulic pump. The hydraulic pump is preferably embodied in the form of a displacer structure. The hydraulic pump may be embodied as a vane pump, a gear pump or a piston pump. The reversible pump can in particular actuate a first system component (e.g. a partial clutch, a gear selector or a parking brake) in a first conveying direction and actuate a further system component in a second conveying direction.

The reversible pump, the drive device, and the local controller may collectively comprise an electric pump actuator. The operating module can either comprise only one pump actuator or two pump actuators, depending on the requirements.

In this way, a simple manipulator module with a compact structure, high integration and a durable configuration with short stroke for signal transmission and power transmission can be provided.

Preferably, the two reversible pumps and the two drive means are controllable by a local controller. In this way, one local controller can be saved, whereby components can be reduced and the module can be constructed more compactly.

Preferably, the first pump and the first drive means are controllable by a first local controller, and the second pump and the second drive means are controllable by a second local controller. In this way, each drive can be controlled by an inherent local controller, which can provide short strokes for signal and power transfer. Furthermore, the operational reliability can be increased thereby, since in the event of a failure of one controller, the other controller can continue to actuate the clutch transmission.

In a preferred embodiment, the at least one pressure sensor transmits a signal to at least one local controller for controlling the at least one drive means. The pressure sensor can transmit the signals required for actuating the drive to the control unit. The pressure sensor is particularly capable of measuring the pressure of the volumetric flow of the working fluid. By means of the pressure sensor, the drive device is able to operate the reversible pump in such a way that the reversible pump is able to provide the pressure required for actuating the clutch and/or the gear selector.

Preferably, at least one valve (in particular a dual pressure valve) is connected to the first and second conveying directions of the at least one reversible pump for the connection to the reservoir for the working fluid. The volume flow control device for clutch actuation or gear-shift-regulator actuation can be controlled by means of a valve, for example a double pressure valve in the form of an and-valve (Und-Ventil) or a directional control valve (Wegeventil). For example, in the case of a double pressure valve, the first conveying direction outlet of the reversible pump can be connected to a first side of the double pressure valve, and a second side of the double pressure valve opposite the first side can be connected to a second conveying direction outlet of the reversible pump. The dual pressure valve may be configured as an and-valve. In the case of a directional control valve, the directional control valve can have different switching states in order to connect the first or second conveying direction outlet to the reservoir.

In the case of two reversible pumps, the valve assembly, in particular an or-valve (oil-Ventil), is preferably connected to a delivery direction of the first reversible pump and to a delivery direction of the second reversible pump. By connecting the first reversible pump and the second reversible pump via the valve assembly, the first reversible pump and the second reversible pump are enabled to operate another system component (e.g., another clutch, a gear adjuster, or a parking brake) by interleaving through the valve assembly. The valve assembly can be configured as an or valve or as a directional valve. In the case of an or valve, it is possible to ensure that: for example, when the gear selector is actuated by an or-valve, only the reversible pump actuating the gear selector can provide the working fluid for actuating the gear selector. The reversible pump can in particular be configured such that the or-valve does not pump working fluid into the hydraulic lines of the other pumps or does not suck working fluid out of the hydraulic lines of the other pumps. In the case of a reversing valve, it can have different switching states, which connect either the first or the second reversible pump to a system component (for example a gear controller, a clutch or a parking brake). In this way, reliable handling of the system components by the valve assembly can be ensured.

In a preferred embodiment, the respective other delivery direction of the first reversible pump and the second reversible pump, which is not connected to the valve assembly, is connected to a hydraulic interface for clutch actuation and/or for gear actuation, and the valve assembly is connected to a hydraulic interface for clutch actuation and/or for gear actuation, respectively. In this way, the actuation module can have three hydraulic interfaces for actuating the system components, for example, in addition to actuating the double clutch, the actuation module can also actuate the gear selector. In particular, a partial clutch of the double clutch and the gear selector can be actuated simultaneously, for example: the first reversible pump is capable of operating the first sub-clutch, and the second reversible pump is capable of operating the gear adjuster through the valve assembly.

Preferably, the respective further conveying direction of the first reversible pump, which is not connected to the valve assembly, is connected to the first hydraulic connection and to the fourth hydraulic connection for clutch cooling, and the respective further conveying direction of the second reversible pump, which is not connected to the valve assembly, is connected to the second hydraulic connection for clutch actuation and/or for gear actuation and to the fifth hydraulic connection for clutch cooling, and the valve assembly is connected to the hydraulic connection for clutch actuation and/or for gear actuation. In this way, the sub-clutch which is just actuated is cooled by means of the working fluid from the pressure circuit associated with the sub-clutch which is not actuated. This can be achieved, for example, by: the first partial clutch can be cooled by means of the fifth hydraulic connection and the second partial clutch can be cooled by means of the fourth hydraulic connection. The actuation of the fourth hydraulic connection and the fifth hydraulic connection can be effected by means of a reversing valve or a check valve. In the case of the use of reversing valves, these can have different switching states, for example, in order to open or close the hydraulic path for cooling the clutch. In particular, an electromagnetic or hydraulically actuated directional control valve can be used. In the case of hydraulically operated reversing valves, the electromagnet with associated control electronics can be dispensed with.

Preferably, the respective other conveying direction of the first reversible pump and the second reversible pump, which is not connected to the valve assembly, is connected to a valve logic device, and the valve assembly is connected to a valve logic device. By means of the valve logic, for example, the respective hydraulic path to the hydraulic interface for actuating a system component (e.g. a clutch, a gear controller or a parking brake) can be closed or opened. This makes it possible to establish lower sealing requirements for the pump, so that simpler components can be used and costs can be saved. Furthermore, in the case of a hydraulic section disconnection, a reversible pump for actuating further transmission components can be used.

In a preferred embodiment, the valve logic device comprises at least one pressure-limiting valve and/or at least one directional control valve. The term pressure limiting valve ("druckbegrenngsventil") describes an overpressure valve which can be an important component in a hydraulic system. The maximum permissible hydraulic pressure can be limited by means of the pressure limiting valve in order to prevent the hydraulic system from being subjected to too high a pressure and to avoid damage. For example, a pressure limiting valve enables the working fluid to flow to the reservoir when the pressure in the system exceeds a desired value. Usually, exceeding the maximum permissible system pressure can be prevented by means of a pressure-limiting valve. In this way, the pressure limiting valve is able to achieve the required reliability in the case of special reliability requirements for overload protection of the actuated system component. The hydraulic path from the respective reversible pump to the respective hydraulic connection can be opened or closed by means of the directional control valve. The reversing valve can be used as a shut-off valve.

Drawings

The invention is explained below in an exemplary manner according to preferred embodiments with reference to the attached drawing, wherein the features shown below can be combined individually and in each case into one aspect of the invention. The figures show:

FIG. 1: a schematic view of a first embodiment of a manipulator module;

FIG. 2: a schematic view of a second embodiment of a manipulator module;

FIG. 3: a schematic view of a third embodiment of a manipulator module;

FIG. 4: a schematic view of a fourth embodiment of a manipulator module;

FIG. 5: a schematic view of a fifth embodiment of the steering module;

FIG. 6: a schematic view of a sixth embodiment of a steering module;

FIG. 7: a schematic view of a seventh embodiment of the steering module;

FIG. 8: a schematic view of an eighth embodiment of a steering module;

FIG. 9: a schematic view of a ninth embodiment of the steering module;

FIG. 10: a schematic view of a tenth embodiment of the steering module;

FIG. 11: a schematic view of an eleventh embodiment of a steering module;

FIG. 12: a schematic view of a twelfth embodiment of the steering module; and

FIG. 13: schematic illustration of a thirteenth embodiment of the steering module.

In the following description of the drawings, the same reference numerals are used for the same components and/or terms.

Detailed Description

Fig. 1 shows a schematic illustration of a first embodiment of an actuation module 10 for the actuation of clutches or gears in a hydraulically actuated clutch transmission, in particular a dual clutch transmission. The schematic view shows all components as rectangles. Furthermore, the mutual connection as well as the connection to the clutch are not shown. The schematic should only show that: which components are used in the manipulator module 10. The manipulation module 10 includes: a reversible pump 12 for delivering a working fluid, wherein the reversible pump 12 has a first delivery direction and a delivery direction opposite the first delivery direction; an electric drive 14 in the form of an electric motor for operating the reversible pump 12; and a local controller 16 for controlling the driving device 14. The reversible pump 12, the drive device 14 and the controller 16 together constitute an electric pump actuator (abbreviated EPA).

A schematic view of a second embodiment of the steering module 18 is shown in fig. 2. The schematic view shows all components as rectangles. Furthermore, the mutual connection as well as the connection to the clutch are not shown. The schematic should only show that: which components are used in the steering module 18. The steering module 18 includes a first reversible pump 20, the first reversible pump 20 being driven by a first drive device 22 in the form of an electric motor. The first drive 22 is controlled by means of a first local control 24. The first reversible pump 20, the first drive 22, and the first local controller 24 collectively comprise a first electric pump actuator EPA 1. In addition, the steering module 18 includes a second reversible pump 26, a second drive device 28, and a second local controller 30. The second reversible pump 26, the second drive 28, and the second local controller 30 collectively comprise a second electric pump actuator EPA 2. The first and second electric pump actuators EPA1, EPA2 are identically configured.

A schematic view of a third embodiment of the steering module 32 is shown in fig. 3. The schematic view shows all components as rectangles. Furthermore, the mutual connection as well as the connection to the clutch are not shown. The schematic should only show that: which components are used in the manipulator module 32. In the steering module, the first reversible pump 20, the first drive 22, the second reversible pump 26, and the second drive 28 are controlled by the local controller 16.

A schematic view of a fourth embodiment of the steering module 34 is shown in fig. 4. The schematic view shows all components as rectangles. Furthermore, the mutual connection as well as the connection to the clutch are not shown. The schematic should only show that: which components are used in the manipulator module 34. The steering module 34 includes the first reversible pump 20, the second reversible pump 26, the first drive 22, the second drive 28, the first local controller 24, and the second local controller 30. A first pressure sensor 36 is disposed between the first reversible pump 20 and the first drive 22. The first pressure sensor 36 measures the pressure of the volumetric flow of working fluid on the first reversible pump 20 and communicates the measured data to the first controller 24. The first controller 24 can control the first drive 22 by means of the measured data, whereby the first reversible pump 20 is controlled. In addition, the steering module 34 includes a second pressure sensor 38 located between the second drive 28 and the second reversible pump 26. The second pressure sensor 38 measures the pressure of the volumetric flow of working fluid on the second reversible pump 26 and communicates the measured data to the second controller 30. The second controller 30 can control the second drive 28 by means of the measured data, whereby the second reversible pump 26 is controlled.

A schematic view of a fifth embodiment of the steering module 40 is shown in fig. 5. The schematic view shows all components as rectangles. Furthermore, the mutual connection as well as the connection to the clutch are not shown. The schematic should only show that: which components are used in the steering module 40. The steering module 40 includes the reversible pump 12, the drive device 14, and the controller 16. A pressure sensor 42 is disposed between the reversible pump 12 and the drive device 14. The pressure sensor 42 measures the pressure of the volumetric flow of working fluid on the reversible pump 12 and communicates the measured data to the controller 16. The controller 16 can control the drive device 14 by means of the measured data, whereby the reversible pump 12 is controlled.

A schematic view of a sixth embodiment of the steering module 44 is shown in fig. 6. The schematic view shows all components as rectangles. Furthermore, the mutual connection as well as the connection to the clutch are not shown. The schematic should only show that: which components are used in the steering module 44. The steering module 44 includes the reversible pump 12, the drive device 14, and the controller 16. In addition, the actuating module 44 comprises a double pressure valve 46 in the form of an and valve in order to connect the two delivery directions of the reversible pump 12 to a reservoir for working fluid, not shown. In this embodiment, the working fluid is hydraulic oil.

A schematic view of a seventh embodiment of the steering module 48 is shown in fig. 7. The schematic view shows all components as rectangles. Furthermore, the mutual connection as well as the connection to the clutch are not shown. The schematic should only show that: which components are used in the steering module 48. The steering module 48 includes an electric dual-pump actuator EPA3 that should be constructed from an assembled electric pump actuator that includes a first electric pump actuator (e.g., EPA1) and a second electric pump actuator (e.g., EPA 2). Furthermore, the actuation module 48 comprises a first double pressure valve 50, a second double pressure valve 52 and a valve assembly 54 in the form of an or valve, wherein the first double pressure valve 50 is connected to the first reversible pump of the first electric pump actuator of the electric double pump actuator EPA3, wherein the second double pressure valve 52 is connected to the second reversible pump of the second electric pump actuator of the electric double pump actuator EPA3, and wherein the valve assembly 54 is connected to a conveying direction of the first reversible pump and to a conveying direction of the second reversible pump, respectively.

A schematic view of an eighth embodiment of the steering module 56 is shown in fig. 8. The schematic view shows all components as rectangles. Furthermore, the mutual connection as well as the connection to the clutch are not shown. The schematic should only show that: which components are used in the steering module 56. The manipulation module 56 includes: a first electric pump actuator EPA4 with a pressure limiting valve for ensuring that the component to be actuated is not overloaded; and a second electric pump actuator EPA5 with a pressure limiting valve for ensuring that no overload of the component to be actuated occurs. Furthermore, the actuation module 56 comprises a first double-pressure valve 50, a second double-pressure valve 52 and a valve assembly 54 in the form of an or-valve, the first double-pressure valve 50 being connected to the first reversible pump of the first electric-type pump actuator EPA4, the second double-pressure valve 52 being connected to the second reversible pump of the second electric-type pump actuator EPA5, the valve assembly 54 being connected to a conveying direction of the first reversible pump and a conveying direction of the second reversible pump, respectively

A schematic view of a ninth embodiment of the steering module 58 is shown in fig. 9. The schematic view shows all components as rectangles. Furthermore, the mutual connection as well as the connection to the clutch are not shown. The schematic should only show that: which components are used in the steering module 58. The steering module 58 includes an electric dual-pump actuator EPA3, which dual-pump actuator EPA3 should be constructed from an assembled electric pump actuator that includes a first electric pump actuator and a second electric pump actuator. Furthermore, the actuation module 58 comprises a first double pressure valve 50, a second double pressure valve 52 and a valve assembly 54 in the form of an or-valve, the first double pressure valve 50 being connected to the first reversible pump of the first electric pump actuator of the electric double pump actuator EPA3, the second double pressure valve 52 being connected to the second reversible pump of the second electric pump actuator of the electric double pump actuator EPA3, the valve assembly 54 being connected to a conveying direction of the first reversible pump and to a conveying direction of the second reversible pump, respectively. The first dual-pressure valve 50 is connected to the first pressure sensor 36 for monitoring the pressure of the volumetric flow of the working fluid. Second dual pressure valve 52 is connected to second pressure sensor 38 for monitoring the pressure of the volumetric flow of the working fluid. The valve assembly 54 is connected to a third pressure sensor 60 for monitoring the pressure of the volumetric flow of the working fluid

Fig. 10 shows a symbol diagram of a tenth embodiment of the steering module 62. The steering module includes a first electric pump actuator EPA6 and a second electric pump actuator EPA 7. These electric pump actuators EPA6 and EPA7 are each surrounded by a dashed rectangle.

The first electric pump actuator EPA6 includes: a first reversible pump 20 having a first conveying direction and a conveying direction opposite to the first conveying direction; a first electric drive 22 for operating the first reversible pump 20; and a first controller 24 for controlling the first driving device 22. The first reversible pump 20 is connected to the first dual pressure valve 50 in both the first and second delivery directions. The first double pressure valve 50 connects the first reversible pump 20 with a reservoir 64 for the working fluid. The first conveying direction of the first reversible pump 20 is shown with an arrow to the left, and the second conveying direction is shown with an arrow to the right. The first delivery direction of the first reversible pump 20 is connected to a first hydraulic connection a for actuating a first partial clutch of the dual clutch transmission. Further, the first electric pump actuator EPA6 further includes, in the first conveying direction: a first pressure limiting valve 66 for protecting the first sub-clutch from overload, and a first pressure sensor 36. The first drive 22 can be controlled by the first controller 24 by means of a first pressure sensor 36. In this case, the first pressure sensor 36 transmits the data it has determined to the first controller 24. The first controller 24 controls the first driving device 22 according to the transmitted data. The first pressure-limiting valve 66 is connected to a reservoir 64 for the working fluid, wherein the reservoir 64 can either be different from the reservoir connected to the first double-pressure valve 50 or the same.

The second electric-type pump actuator EPA7 includes: a second reversible pump 26 having a first conveying direction and a conveying direction opposite to the first conveying direction, a second electric drive 28 for operating the second reversible pump 26, and a second controller 30 for controlling the second drive 28. The second reversible pump 26 is connected to the second dual pressure valve 52 in both the first and second delivery directions. The second dual pressure valve 52 connects the second reversible pump 26 with a reservoir 64 for the working fluid. Reservoir 64 may be different from, or the same as, the reservoir connected to first dual-pressure valve 50. The first conveying direction of the second reversible pump 26 is shown with an arrow to the left, and the second conveying direction is shown with an arrow to the right. The second delivery direction of the second reversible pump 26 is connected to a second hydraulic connection B for actuating a second partial clutch of the dual clutch transmission. In addition, the second electric pump actuator EPA7 has a second pressure-limiting valve 68 for protecting the second partial clutch against overloading in the second conveying direction, and a second pressure sensor 38. The second drive 28 can be controlled by the second controller 30 by means of a second pressure sensor 38. In this case, the second pressure sensor 38 transmits the data it has acquired to the second controller 30. The second controller 30 controls the second driving device 28 according to the transmitted data. The second pressure-limiting valve 68 is connected to the reservoir 64 for the working fluid, wherein the reservoir 64 can either be different from the reservoir connected to the first double-pressure valve 50 or the same.

A valve assembly 54 in the form of an or-valve is arranged between the first and second electrical pump actuators EPA6, EPA 7. A first side of the valve assembly 54 is connected to the second delivery direction of the first reversible pump 20 and a second side opposite the first side is connected to the first delivery direction of the second reversible pump 26. The valve assembly 54 is connected to a third hydraulic connection C for actuating the gear selector. Furthermore, on the hydraulic path from the valve arrangement 54 to the hydraulic connection C, there are arranged: a third pressure sensor 60 for monitoring the pressure of the volumetric flow of working fluid; and a third pressure-limiting valve 70 for protecting the gear adjuster from overload. By means of the third pressure sensor 60, the first drive 22 can be controlled by the first controller 24 or the second drive 28 can be controlled by the second controller 30: depending on whether the first reversible pump 20 or the second reversible pump 26 delivers the working fluid to the valve assembly 54. In this case, the third pressure sensor 60 transmits the data it has determined to the first controller 24 or to the second controller 30. The first controller 24 controls the first driving device 22 according to the transmitted data, or the second controller 30 controls the second driving device 28 according to the transmitted data. The third pressure-limiting valve 70 is connected to a reservoir 64 for the working fluid, wherein the reservoir 64 can either be different from the reservoir connected to the first double-pressure valve 50 or the same.

Fig. 11 shows a symbol diagram of an eleventh embodiment of the operating module 72. The steering module includes a first electric pump actuator EPA8 and a second electric pump actuator EPA 9. These electric pump actuators EPA8 and EPA9 are each surrounded by a dashed rectangle.

The first electric pump actuator EPA8 includes: a first reversible pump 20 having a first conveying direction and a conveying direction opposite to the first conveying direction; a first electric drive 22 for operating the first reversible pump 20; and a first controller 24 for controlling the first driving device 22. The first reversible pump 20 is connected to the first dual pressure valve 50 in both the first and second delivery directions. The first double pressure valve 50 connects the first reversible pump 20 with a reservoir 64 for the working fluid. The first conveying direction of the first reversible pump 20 is shown with an arrow to the left, and the second conveying direction is shown with an arrow to the right. The first delivery direction of the first reversible pump 20 is connected to a first hydraulic connection a for actuating a first partial clutch of the dual clutch transmission. Furthermore, the first electric pump actuator EPA8 also has a first valve logic 74 in the form of a directional valve in the first conveying direction. The hydraulic line from the first reversible pump 20 to the first hydraulic interface a can be closed or interrupted by means of the first valve logic device 74. The first valve logic 74 is in this embodiment an electromagnetic directional valve which is held in an initial position (in this embodiment in an open state) by means of a resilient element in the form of a compression spring.

The second electric-type pump actuator EPA9 includes: a second reversible pump 26 having a first conveying direction and a conveying direction opposite to the first conveying direction; a second electric drive 28 for operating the second reversible pump 26; and a second controller 30 for controlling the second driving device 28. The second reversible pump 26 is connected to the second dual pressure valve 52 in both the first and second delivery directions. The second dual pressure valve 52 connects the second reversible pump 26 with a reservoir 64 for the working fluid. Reservoir 64 may be different from, or the same as, the reservoir connected to first dual-pressure valve 50. The first conveying direction of the second reversible pump 26 is shown with an arrow to the left, and the second conveying direction is shown with an arrow to the right. The first delivery direction of the second reversible pump 26 is connected to a second hydraulic connection B for actuating a second partial clutch of the dual clutch transmission. Furthermore, the second electric pump actuator EPA9 also has a second valve logic 76 in the form of a reversing valve in the second conveying direction. The hydraulic line from the second reversible pump 26 to the second hydraulic port B can be closed or interrupted by means of the second valve logic device 76. The second valve logic means 76 is in this embodiment an electromagnetic directional valve which is held in an initial position (in this embodiment in the open state) by means of a resilient element in the form of a compression spring.

A valve assembly 54 in the form of an or-valve is arranged between the first and second electrical pump actuators EPA8, EPA 9. A first side of the valve assembly 54 is connected to the second delivery direction of the first reversible pump 20 and a second side opposite the first side is connected to the first delivery direction of the second reversible pump 26. The valve assembly 54 is connected to a third hydraulic connection C for actuating the gear selector.

Fig. 12 shows a symbol diagram of a twelfth embodiment of the actuating module 78. In addition to the three hydraulic connections A, B, C, the actuation module comprises a fourth hydraulic connection D and a fifth hydraulic connection E. For example, a first electric pump actuator EPA8 may be able to actuate the first sub-clutch via a fourth hydraulic interface D and a fifth hydraulic interface E, and a second electric pump actuator EPA9 may be able to cool the first sub-clutch via hydraulic interface E. As the second sub-clutch is manipulated by the second electric pump actuator EPA9, the first electric pump actuator EPA8 can cool the second sub-clutch through the hydraulic interface D. Such switching is effected by means of a first valve logic device 80 and a second valve logic device 82. In this embodiment, the first valve logic device 80 and the second valve logic device 82 are configured as switchable directional valves in a seated configuration. The directional valves have an open state and a closed state and are hydraulically operated.

Fig. 13 shows a symbol diagram of a thirteenth embodiment of the actuation module 84. In this embodiment, electromagnetic directional valves are used as the first valve logic device 74 and the second valve logic device 76.

List of reference numerals

10 operating module

12 reversible pump

14 drive device

16 controller

18 operating module

20 first reversible pump

22 first drive device

24 first controller

26 second reversible pump

28 second drive device

30 second controller

32 operating module

34 operating module

36 first pressure sensor

38 second pressure sensor

40 operating module

42 pressure sensor

44 operating module

46 double pressure valve

48 operating module

50 first double pressure valve

52 second dual pressure valve

54 valve assembly

56 manipulator module

58 manipulator module

60 third pressure sensor

62 operating module

64 storage device

66 first pressure limiting valve

68 second pressure limiting valve

70 third pressure limiting valve

72 operating module

74 first valve logic device

76 second valve logic device

78 operating module

80 first valve logic device

82 second valve logic device

84 operating module

EPA electric pump actuator

EPA1 first electric Pump actuator

EPA2 second electric Pump actuator

EPA3 electric dual pump actuator

EPA4 first electric pump actuator with valve

Second electric pump actuator with EPA5 having a valve

EPA6 first electric Pump actuator

EPA7 second electric Pump actuator

EPA8 first electric Pump actuator

EPA9 second electric Pump actuator

A first hydraulic interface

B second hydraulic interface

C third hydraulic interface

D fourth hydraulic interface

E fifth hydraulic interface

Claims

1. A manipulation module for hydraulically manipulating clutch actuations or gear actuations in a clutch transmission, the manipulation module comprising:

at least one reversible pump (12, 20, 26) for delivering a working fluid, wherein the reversible pump (12, 20, 26) has a first delivery direction and a delivery direction opposite thereto;

at least one electric drive device (14, 22, 28) for operating the reversible pump (12, 20, 26); and

at least one local controller (16, 24, 30) for controlling the drive means (14, 22, 28);

in the case of two reversible pumps (20, 26), the valve assembly (54) is connected to a conveying direction of the first reversible pump (20) and to a conveying direction of the second reversible pump (26);

the further delivery direction of the first reversible pump (20), which is not connected to the valve assembly (54), is connected to the first hydraulic connection (A) for clutch actuation and/or for gear actuation and to the fourth hydraulic connection (D) for clutch cooling, and the further delivery direction of the second reversible pump (26), which is not connected to the valve assembly (54), is connected to the second hydraulic connection (B) for clutch actuation and/or for gear actuation and to the fifth hydraulic connection (E) for clutch cooling, and the valve assembly (54) is connected to the hydraulic connection (C) for clutch actuation and/or for gear actuation.

2. The operating module of claim 1, wherein the clutch transmission is a dual clutch transmission.

3. The steering module according to claim 1, wherein the two reversible pumps (20, 26) and the two drive means (22, 28) are controllable by means of one controller (16).

4. The steering module according to claim 1, wherein the first reversible pump (20) and the first drive device (22) are controllable by a first controller (24), and the second reversible pump (26) and the second drive device (28) are controllable by a second controller (30).

5. Steering module according to any of claims 1 to 4, characterized in that at least one pressure sensor (36, 38, 42, 60) transmits a signal to at least one of the controllers (16, 24, 30) for controlling at least one of the drive means (14, 22, 28).

6. The steering module according to any one of claims 1 to 4, characterized in that for connection with a reservoir (64) for a working fluid at least one valve is connected with a first and a second conveying direction of the at least one reversible pump (12, 20, 26).

7. The steering module of claim 6, wherein the valve is a dual pressure valve.

8. Operating module according to any of claims 1 to 4, 7, characterized in that the valve assembly is an OR-valve.

9. An operating module according to claim 6, characterised in that the valve assembly is an OR-valve.

10. Operating module according to claim 8, characterized in that the respective other delivery direction of the first reversible pump (20) and the second reversible pump (26), which is not connected to the valve assembly (54), is connected to a hydraulic interface (A, B) for clutch actuation and/or for gear actuation, and the valve assembly (54) is connected to a hydraulic interface (C) for clutch actuation and/or for gear actuation.

11. Operating module according to claim 9, characterized in that the respective other delivery direction of the first reversible pump (20) and the second reversible pump (26), which is not connected to the valve assembly (54), is connected to a hydraulic interface (A, B) for clutch actuation and/or for gear actuation, and the valve assembly (54) is connected to a hydraulic interface (C) for clutch actuation and/or for gear actuation.

12. Operating module according to one of claims 1 to 4, 7, 9 to 11, characterized in that the respective other delivery direction of the first reversible pump (20) and the second reversible pump (26), which is not connected to the valve assembly (54), and the valve assembly (54) are connected to a valve logic device (74, 76, 80, 82), respectively.

13. An operating module according to claim 12, characterised in that the valve logic means (74, 76, 80, 82) comprise at least one pressure limiting valve and/or at least one reversing valve.