DE102021103127A1 - Actuating device for shifting gears of an automated manual transmission - Google Patents

Abstract

Actuating device (1) for shifting gears of an automated transmission (2) of a utility vehicle, the actuating device having a plurality of piston-cylinder arrangements which are connected to a pneumatic or hydraulic pressure medium supply system (26). The manual transmission has a main transmission (2a) with an upstream splitter group (2b) and a downstream range group (2c), each of which is assigned at least one pneumatically or hydraulically actuated piston-cylinder arrangement (6, 7, 8, 9). Each piston-cylinder arrangement has at least one electrically controllable switching valve (14a, 14b, 15a, 15b, 16a, 16b, 17a, 17b) for its actuation and at least one switching position sensor (18, 19, 20, 21) for measuring the switching position assigned to the piston-cylinder arrangement. The piston-cylinder assemblies, the shift valves and shift position sensors are installed in a common actuator housing (3). It is further provided that two piston-cylinder arrangements (6, 7) are arranged in a first geometrical plane (4) and are aligned with their longitudinal axes (22, 23) parallel to one another, and that a third piston-cylinder arrangement (8th ) is arranged at a distance from the first geometrical plane (4) and in a second geometrical plane (5) which is at least approximately perpendicular to this.

Description

The invention relates to an actuating device for shifting gears of an automated manual transmission of a commercial vehicle, the actuating device having a plurality of piston-cylinder arrangements which are connected to a pneumatic or hydraulic pressure medium supply system, the manual transmission having a main transmission with an upstream splitter group and a downstream range group At least one pneumatically or hydraulically actuatable piston-cylinder assembly is assigned to each of the three sub-transmissions mentioned, each of the at least three piston-cylinder assemblies being assigned at least one electrically controllable switching valve to actuate them, each of the at least three pistons -Cylinder assemblies is assigned at least one switching position sensor for measuring a switching position of the respective piston-cylinder assembly, and in which the piston-cylinder assemblies and these ordered switching valves and switch position sensors are installed in a common actuator housing.

Such actuating devices are used for automated engagement and disengagement of gears in manual transmissions in drive trains of motor vehicles and are known in various designs. Pneumatically or hydraulically actuated manual transmissions in commercial vehicles are often designed in a group design. They have a main transmission, a splitter group connected upstream of the main transmission and a range group connected downstream of the main transmission. The splitter group and the range group are each assigned a fluid-operated piston-cylinder arrangement for switching between only two translations. The main transmission is assigned a piston-cylinder arrangement for gear selection and optionally another piston-cylinder arrangement for shift gate selection. In addition, each piston-cylinder arrangement is usually assigned two switching valves designed as electrically controllable solenoid directional control valves, by means of which the respective piston-cylinder arrangements can be actuated. In addition, for the precise detection of a respective switch position of the piston-cylinder arrangement, several switch position sensors are arranged, which are designed, for example, as 3D Hall sensors.

In the case of piston-cylinder arrangements, a linearly displaceable piston rod carries a double-acting piston at one end, which separates two pressure chambers from one another in the associated cylinder. The piston is acted upon in the cylinder by the pressure medium which, depending on the intended direction of movement, flows in a valve-controlled manner into one of the two pressure chambers, while the respective other pressure chamber is vented. The pressure medium acting on the piston via the pressure chambers and the venting of the pressure chambers is controlled by means of the switching valves, with each of the pressure chambers usually being assigned a switching valve which opens or closes the pressure lines connected to it. Outside of the cylinder, the piston rod of the respective piston-cylinder arrangement has a mechanical interface for transmitting an actuating force to a shifting element of the gearbox.

The piston-cylinder arrangements as well as the shift valves and shift position sensors are usually housed in a common housing and, together with a usually integrated electronic control unit, form the actuating device of such a manual transmission.

Such an actuating device is known, for example, from WABCO publication no. 815 020 266 3/08.2020, “WABCO Automated Manual Transmission (AMT), aftermarket solutions for transmission controls for ZF transmissions”. the DE 10 2014 114 730 A1 shows another such arrangement of a generic actuator.

In the known automated manual transmissions in group construction, the shift cylinders of the three sub-transmissions mentioned are positioned next to one another in a parallel arrangement in the actuating device housing. However, due to specifications from commercial vehicle manufacturers or transmission manufacturers for commercial vehicles with regard to the positioning of shifting elements and pressure medium feeds in new and future types of automated manual transmissions and due to space limitations, it is difficult in many cases to accommodate all components of the actuating device in the conventional arrangement in the actuating device housing and connect to the gearbox. In particular, the relative position of the mechanical interfaces of the piston rods of the piston-cylinder assemblies to the transmission in the previous actuating devices is not readily compatible with the specifications mentioned. It has also been found that the electrical and/or magnetic switching components and sensor components present in the available installation space in the previous concepts for actuating devices have an unfavorable effect on one another, as a result of which faults and inaccuracies in the switching control of the transmission could occur.

Against this background, the invention is based on the object of proposing an actuating device of the type mentioned at the outset, which saves installation space, is easy to assemble and is reliable in operation. In particular, this actuating device should provide an alternative, space-saving and simple connection to the mechanical, electrical and fluid interfaces of an automated manual transmission and facilitate interference-free accommodation of the electrical and/or magnetic switching components and sensor components in the actuating device housing.

This object is achieved with an actuating device which has the features of claim 1 . Advantageous refinements and developments of the invention are defined in the dependent claims.

• - wobei die Betätigungsvorrichtung mehrere Kolben-Zylinder-Anordnungen aufweist, welche mit einem pneumatischen oder hydraulischen Druckmittelversorgungssystem verbunden sind,
• - wobei das Schaltgetriebe ein Hauptgetriebe mit einer vorgeschalteten Splitgruppe und einer nachgeschalteten Bereichsgruppe aufweist,
• - wobei jedem der drei genannten Teilgetriebe jeweils mindestens eine pneumatisch oder hydraulisch betätigbare Kolben-Zylinder-Anordnung zugeordnet ist,
• - wobei jeder der mindestens drei Kolben-Zylinder-Anordnungen jeweils mindestens ein elektrisch ansteuerbares Schaltventil zu deren Betätigung zugeordnet ist,
• - wobei jedem der mindestens drei Kolben-Zylinder-Anordnungen jeweils mindestens ein Schaltstellungssensor zum Messen einer Schaltstellung der jeweiligen Kolben-Zylinder-Anordnung zugeordnet ist, und
• - bei dem die Kolben-Zylinder-Anordnungen, die diesen zugeordneten Schaltventile sowie Schaltstellungssensoren in einem gemeinsamen Betätigungsvorrichtungsgehäuse eingebaut sind.

The invention therefore relates to an actuating device for shifting gears of an automated manual transmission of a commercial vehicle,

• - wherein the actuating device has a plurality of piston-cylinder arrangements which are connected to a pneumatic or hydraulic pressure medium supply system,
• - wherein the manual transmission has a main transmission with an upstream splitter group and a downstream range group,
• - wherein each of the three sub-transmissions mentioned is assigned at least one pneumatically or hydraulically actuated piston-cylinder arrangement,
• - wherein each of the at least three piston-cylinder assemblies is assigned at least one electrically controllable switching valve to actuate it,
• - Each of the at least three piston-cylinder assemblies being assigned at least one switching position sensor for measuring a switching position of the respective piston-cylinder assembly, and
• - In which the piston-cylinder assemblies, these associated switching valves and switch position sensors are installed in a common actuator housing.

In order to solve the task at hand, it is provided in this actuating device that two piston-cylinder assemblies of the at least three piston-cylinder assemblies are arranged in a first geometric plane and are aligned with their longitudinal axes parallel to one another, and that a third piston-cylinder assembly is arranged at a distance from the first geometric plane and in a second geometric plane which is at least approximately perpendicular to the first geometric plane.

The term "geometric plane" is understood to mean an imaginary plane within an actuator housing.

The arrangement presented creates a particularly compact actuating device which, in contrast to the known actuating devices, can make better use of the available installation space. This is achieved in particular in that the piston-cylinder arrangements are not all arranged next to one another in a single geometric plane, but are distributed over a horizontal plane and a vertical plane next to one another and one above the other.

The actuating device according to the invention is particularly advantageous for such automated manual transmissions in which, due to the design, an arrangement of at least three shift cylinders of three partial transmissions lined up next to one another is rather unfavorable or incompatible for the transmission of the actuating forces of the piston-cylinder arrangements to the associated shifting elements of the transmission .

The actuating device according to the invention can advantageously be adapted to a compact transmission structure of a group transmission in a limited space available, in which the transmission-internal shifting elements, such as shifting forks and shifting sleeves, are partially positioned one above the other or offset from one another. In principle, the existing piston-cylinder arrangements can be distributed in various configurations on a horizontal geometric plane and a vertical geometric plane, that is to say partly next to one another and partly one above the other, in the actuating device housing. As a result, the actuating device with the features of the invention has a high degree of adaptability to different customer requirements.

Due to the arrangement of the piston-cylinder arrangements described, the position magnets of the shift position sensors, which are preferably designed as 3D Hall sensors and are arranged on the piston rods of the shift cylinders, are spatially further apart than in known actuating devices. This reliably prevents mutual magnetic interference between the sensors, which could severely disrupt the switch position measurement.

In contrast to the known actuating devices, the presented arrangement according to the invention has the further advantage that sufficient free space is created for favorable accommodation of electrical valve components. Accordingly, the actuating device according to the invention allows variable options for the arrangement of the switching valves. For example, four switching valves of two piston-cylinder assemblies, such as the switching valves for operating the splitter group and the range group, could be placed side by side. This simplifies the supply of pressure medium and the electrical switching of the switching valves in question.

According to a development of the invention, it can be provided that in the housing of the actuating device there is a fourth piston-cylinder arrangement which, like the first two shift cylinders, is arranged in the first geometric plane, with the longitudinal axis of the fourth piston-cylinder arrangement is aligned perpendicular to the respective longitudinal axes of the first two piston-cylinder assemblies.

The main transmission in an automated manual transmission in group construction are often assigned two piston-cylinder arrangements, with a first piston-cylinder arrangement for gear selection and a second piston-cylinder arrangement for shift gate selection being provided for more than two forward gears and in addition to shift at least one reverse gear. By arranging this additional fourth piston-cylinder arrangement in the transverse direction in relation to the two first and second piston-cylinder arrangements oriented in the longitudinal direction on the first geometric plane, a particularly compact design of the actuating device is achieved.

• - wobei die beiden dem Hauptgetriebe zugeordneten Kolben-Zylinder-Anordnungen in der ersten geometrischen Ebene angeordnet sind sowie senkrecht zueinander ausgerichtet sind,
• - wobei die der Bereichsgruppe zugeordnete Kolben-Zylinder-Anordnung parallel zu einem der beiden dem Hauptgetriebe zugeordneten Kolben-Zylinder-Anordnungen ausgerichtet sowie in der ersten geometrischen Ebene angeordnet ist,
• - wobei die der Splitgruppe zugeordnete Kolben-Zylinder-Anordnung parallel zu der der Bereichsgruppe zugeordnete Kolben-Zylinder-Anordnung ausgerichtet sowie in der zweiten geometrischen Ebene angeordnet ist,
• - wobei die Stellrichtung der der Bereichsgruppe zugeordneten Kolben-Zylinder-Anordnung zur Übertragung einer Stellkraft entgegengesetzt zu der Stellrichtung der der Splitgruppe zugeordneten Kolben-Zylinder-Anordnung ist, und
• - wobei in einer Einbaulage des Betätigungsvorrichtungsgehäuses die erste geometrische Ebene als eine horizontale Ebene und die zweite geometrische Ebene als eine vertikale Ebene definiert sind,
• - sodass die der Bereichsgruppe zugeordnete Kolben-Zylinder-Anordnung mit der dem Hauptgetriebe zugeordneten Kolben-Zylinder-Anordnung in der horizontalen Ebene sowie mit der der Splitgruppe zugeordneten Kolben-Zylinder-Anordnung in der vertikalen Ebene eine zueinander parallele Anordnung bildet.

According to an actuating device according to the invention that is specific to an exemplary application, it can be provided that the first piston-cylinder arrangement and the fourth piston-cylinder arrangement are assigned to the main transmission, that the second piston-cylinder arrangement is assigned to the range group, and that the third piston-cylinder arrangement is assigned to the splitter group,

• - wherein the two piston-cylinder arrangements associated with the main transmission are arranged in the first geometric plane and are aligned perpendicular to one another,
• - the piston-cylinder arrangement assigned to the range group being aligned parallel to one of the two piston-cylinder arrangements assigned to the main transmission and being arranged in the first geometric plane,
• - the piston-cylinder arrangement assigned to the split group being aligned parallel to the piston-cylinder arrangement assigned to the range group and being arranged in the second geometric plane,
• - wherein the actuating direction of the range group associated piston-cylinder assembly for transmitting an actuating force is opposite to the actuating direction of the split group associated piston-cylinder assembly, and
• - wherein the first geometric plane is defined as a horizontal plane and the second geometric plane is defined as a vertical plane in an installation position of the actuator housing,
• - So that the area group associated piston-cylinder assembly forms a mutually parallel arrangement with the main transmission associated piston-cylinder assembly in the horizontal plane and with the splitter group associated piston-cylinder assembly in the vertical plane.

By way of example, this actuating device is adapted to fictitious specifications from manufacturers of compact automated manual transmissions in group construction. These requirements relate to both installation space restrictions and interfaces for the mechanical transmission of the actuating forces from the actuators of the actuating device to the shifting elements of the manual transmission.

Accordingly, the piston-cylinder assemblies of the range group and the splitter group are arranged one above the other in a vertical geometric plane, instead of side by side in a horizontal plane as before. In addition, the direction of adjustment of these two piston-cylinder assemblies is opposite. The term “actuating direction” means that direction in which the piston rod of the respective piston-cylinder arrangement moves when its piston is pressurized. This adjustment-direction-related arrangement enables an advantageous spatial arrangement of the magnetic elements of the respective assigned switch position sensors that are particularly far apart. In addition, the connections to the pressure medium supply and the associated arrangement of the associated switching valves are simplified. In particular, in the actuator housing straight, so not bent or angled, guided bores for the required pressure medium channels and a compact side-by-side arrangement of the switching valves for the area group and the splitter group of the group be realized pen drive. The compact arrangement of the switching valves also simplifies their electrical connection to an electronic control unit of the actuating device.

Depending on the transmission concept, the person skilled in the art will find further advantageous arrangements in which other piston-cylinder arrangements are arranged one above the other in the vertical plane. Likewise, one or more piston-cylinder assemblies can be rotated through 90° or through 180° in order to position their adjustment direction differently.

Finally, the invention also relates to an automated manual transmission, with an actuating device for shifting gears, which is constructed according to one of the device claims, and a commercial vehicle, with an automated manual transmission and such an actuating device.

• 1 eine perspektivische schematische Ansicht einer Betätigungsvorrichtung mit den Merkmalen der Erfindung, und
• 2 eine schematische Ansicht der Betätigungsvorrichtung gemäß 1 aus einer anderen Perspektive.

The invention is explained in more detail below with reference to an exemplary embodiment illustrated in the attached drawing. In the drawing shows

• 1 a perspective schematic view of an actuating device with the features of the invention, and
• 2 a schematic view of the actuating device according to FIG 1 from a different perspective.

In the 1 and 2 the components relevant to the description of the invention of an actuating device 1 designed according to the invention of an automated manual transmission 2 of a commercial vehicle, which is only indicated, are shown in a partly schematic, greatly simplified form. A number of pressure medium lines and a number of electrical lines for connecting and connecting the individual components are not shown, since the pressure medium supply and the electrical circuit of such an actuating device are known per se and are not relevant to the invention.

The actuating device 1 is presently designed as an electropneumatically operable actuating device which has an integrated electronic control unit (not shown) and is supplied with compressed air as pressure medium via a known pressure medium supply system 26 of a commercial vehicle, only indicated in the figures.

A pressure medium supply system 26 of a commercial vehicle designed as a compressed air system has, as is known, a compressor that can be driven by a drive motor or electrically and compresses the ambient air, which is then fed to a multi-circuit protection valve via an air dryer. The multi-circuit protection valve forwards a supply pressure independently to several compressed air circuits of several pneumatic consumers of the vehicle. The compressed air circuit of the actuating device 1 is connected to the multi-circuit protection valve via a pressure-reducing valve, also not shown.

The compressed air circuit of the actuating device has several pneumatically operable piston-cylinder assemblies 6, 7, 8, 9 and associated switching valves 14a, 14b, 15a, 15b, 16a, 16b, 17a, 17b designed as electrically operable directional control valves. The assignment of the respective switching valves 14a, 14b, 15a, 15b, 16a, 16b, 17a, 17b to the respective piston-cylinder assemblies 6, 7, 8, 9 is in the 1 and 2 illustrated by dashed arrows. This component arrangement is in a common, in the 1 and 2 housed only indicated actuator housing 3 and is explained in more detail below.

Accordingly, in the present example, the actuating device 1 has four actuators which, in a known embodiment, are designed as double-acting piston-cylinder arrangements. Each piston-cylinder arrangement 6, 7, 8, 9 has a linearly displaceable piston rod 10, 11, 12, 13 in a cylinder housing, which carries a double-acting piston at an inner end, which cannot be seen separates two pressure chambers (not shown) from one another. At least two switching valves 14a, 14b; 15a, 15b; 16a, 16b; 17a, 17b, each of the pressure chambers being pneumatically connected to a switching valve 14a, 14b, 15a, 15b, 16a, 16b, 17a, 17b, which in each case open or close a pressure line connected to it.

When compressed air is applied to the respective piston, valve-controlled compressed air flows into one of the two pressure chambers, depending on the intended direction of movement, while the respective other pressure chamber is vented. The piston rods 10 , 11 , 12 , 13 of the piston-cylinder assemblies 6 , 7 , 8 , 9 have a mechanical interface outside of the cylinder housing for transmitting an actuating force to an associated shifting element of the manual transmission 2 (not shown). The actuating direction in which the respective piston rod 10, 11, 12, 13 moves out of the cylinder housing in order to exert an actuating force on a shifting element of the manual transmission 2 that is directly or indirectly connected to the piston rod 10, 11, 12, 13 in a non-positive manner is in the two 1 and 2 each made visible with an arrow on the piston rods. If the piston rod 10 moves, 11, 12, 13 back into the assigned cylinder, the shift element on the transmission side is relieved.

In addition, a switching position sensor 18, 19, 20, 21, known as a 3D Hall sensor, is arranged on each piston-cylinder arrangement 6, 7, 8, 9, each of which is arranged stationary relative to the associated piston rod 10, 11, 12, 13 Sensor head 18a, 19a, 20a, 21a and a position magnet 18b, 19b, 20b, 21b attached adjacent thereto on the piston rod 10, 11, 12, 13. The switching position sensors 18, 19, 20, 21 are used for the precise position measurement and control of the movement of the associated piston rod 10, 11, 12, 13 or the relevant switching valve 14a, 14b, 15a, 15b, 16a, 16b, 17a, 17b by the control unit of the manual transmission 2.

In the present example, the first piston-cylinder arrangement 6 is assigned to a main transmission 2a of the manual transmission 2 and is arranged in a first imaginary geometric plane 4 of the actuating device housing 3 . The first geometric plane 4 is also referred to below as the horizontal plane 4 with regard to a preferred installation position of the actuating device 1 . In the present example, the second piston-cylinder arrangement 7 is assigned to a range group 2c of the transmission 2 and is also arranged in the horizontal plane 4 of the actuating device housing 3, the longitudinal axes 22, 23 of the two mentioned piston-cylinder arrangements 6, 7 being parallel to one another get lost. However, the setting directions of these two shift cylinders 6, 7 are aligned in opposite directions, as can be seen from the setting direction arrows. The fourth piston-cylinder arrangement 9 is assigned to the main transmission 2a of the gearbox 2 as a further piston-cylinder arrangement and is also arranged in the horizontal plane 4 of the actuating device housing 3 . However, the longitudinal axis 25 of this fourth piston-cylinder arrangement 9 runs in the transverse direction to the longitudinal axes 22, 23 of the other two piston-cylinder arrangements 6, 7 in this horizontal plane 4.

In contrast to the conventional actuating devices, the third piston-cylinder arrangement 8, which in the present example is assigned to a splitter group 2b of the transmission 2, is not in the horizontal plane 4, but spaced from it in a second plane perpendicular to the horizontal plane 4 5 arranged, which is also called vertical plane 5 here. This piston-cylinder arrangement 8 for actuating the split group 2b runs with its longitudinal axis 24 parallel to the longitudinal axis 23 of the piston-cylinder arrangement 7 for actuating the range group 2c. However, the actuating direction of this fourth piston-cylinder arrangement 8 is opposite to the actuating direction of the piston-cylinder arrangement 7 for the actuation of the range group 2c. The piston-cylinder arrangement 8 for actuating the splitter group 2b of the range-change transmission is therefore arranged below the piston-cylinder arrangement 7 intended for actuating the range group 2c, as seen in the installation direction.

In an imaginary cross-sectional view through the first piston-cylinder assembly 6 for actuating the main transmission 2a, through the piston-cylinder assembly 7 for actuating the range group 2c and through the piston-cylinder assembly 8 for actuating the splitter group 2b or through the two planes 4, 5 perpendicular to one another, the result in the actuating device 1 with the features of the invention is an angular arrangement of the three mentioned piston-cylinder assemblies 6, 7, 8 in the actuating device housing 3. This structure is adapted to a correspondingly predetermined transmission structure of the manual transmission 2 adjusted.

Reference List

1

operating device

2

Automated manual transmission, group transmission

2a

Main transmission of manual transmission

2 B

Split group of the manual transmission

2c

Manual transmission range group

3

actuator housing

4

First geometric plane, horizontal plane

5

Second geometric level, vertical level

6

First piston and cylinder arrangement, for the main gearbox

7

Second piston-cylinder arrangement, for the range group

8th

Third piston-cylinder arrangement for the splitter group

9

Fourth piston-cylinder arrangement, for the main gearbox

10

Piston rod of the first piston-cylinder assembly

11

Piston rod of the second piston-cylinder arrangement

12

Piston rod of the third piston-cylinder arrangement

13

Piston rod of the fourth piston-cylinder arrangement

14a

First switching valve for the first piston-cylinder arrangement

14b

Second switching valve for the first piston-cylinder arrangement

15a

First switching valve for the second piston-cylinder arrangement

15b

Second switching valve for the second piston-cylinder arrangement

16a

First switching valve for the third piston-cylinder arrangement

16b

Second switching valve for the third piston-cylinder arrangement

17a

First switching valve for the fourth piston-cylinder arrangement

17b

Second switching valve for the fourth piston-cylinder arrangement

18

First switch position sensor

18a

Sensor head of the first switch position sensor

18b

Position magnet of the first switch position sensor

19

Second switch position sensor

19a

Sensor head of the second switch position sensor

19b

Position magnet of the second switch position sensor

20

Third shift position sensor

20a

Sensor head of the third switch position sensor

20b

Position magnet of the third switch position sensor

21

Fourth switch position sensor

21a

Sensor head of the fourth switch position sensor

21b

Position magnet of the fourth switch position sensor

22

Longitudinal axis of the first piston-cylinder arrangement

23

Longitudinal axis of the second piston-cylinder arrangement

24

Longitudinal axis of the third piston-cylinder arrangement

25

Longitudinal axis of the fourth piston-cylinder arrangement

26

pressure medium supply system

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102014114730 A1 [0005]

Claims (5)

Actuating device (1) for shifting gears of an automated manual transmission (2) of a commercial vehicle, - the actuating device (1) having a plurality of piston-cylinder arrangements which are connected to a pneumatic or hydraulic pressure medium supply system (26), - the manual transmission ( 2) has a main transmission (2a) with an upstream splitter group (2b) and a downstream range group (2c), - each of the three sub-transmissions (2a, 2b, 2c) mentioned having at least one pneumatically or hydraulically actuatable piston-cylinder arrangement ( 6, 7, 8, 9); 17a, 17b) is assigned for its actuation, - wherein each of the at least three piston-cylinder assemblies (6, 7, 8, 9) has at least one switching position sensor (18, 19, 20, 21) for measuring an S switching position of the respective piston-cylinder assembly is assigned, and - in which the piston-cylinder assemblies (6, 7, 8, 9) and the associated switching valves (14a, 14b, 15a, 15b, 16a, 16b, 17a, 17b ) and switching position sensors (18, 19, 20, 21) are installed in a common actuating device housing (3), characterized in that two piston-cylinder assemblies (6, 7) of the at least three piston-cylinder assemblies (6, 7, 8, 9) are arranged in a first geometric plane (4) and are aligned with their longitudinal axes (22, 23) parallel to one another, and that a third piston-cylinder arrangement (8) is spaced apart from the first geometric plane (4) and in a second geometrical plane (5) which is at least approximately perpendicular to the first geometrical plane (4). operating device claim 1 , characterized in that there is a fourth piston-cylinder arrangement (9) which, like the first two shift cylinders (6, 7), is arranged in the first geometric plane (4), the longitudinal axis (25) of the fourth piston -cylinder arrangement (9) is aligned perpendicular to the respective longitudinal axes (22, 23) of the first two piston-cylinder arrangements (6, 7). operating device claim 1 or 2 , characterized in that the first piston-cylinder arrangement (6) and the fourth piston-cylinder arrangement (9) are assigned to the main transmission (2a), that the second piston-cylinder arrangement (7) of the range group (2c) is assigned, and that the third piston-cylinder arrangement (8) is assigned to the splitter group (2b), - the two piston-cylinder arrangements (6, 9) assigned to the main transmission (2a) being located in the first geometric plane (4th ) and are aligned perpendicular to one another, - the piston-cylinder arrangement (7) assigned to the range group (2c) being aligned parallel to one of the two piston-cylinder arrangements (6, 9) assigned to the main transmission (2a) and in the is arranged in the first geometric plane (4), - the piston-cylinder arrangement (8) assigned to the split group (2b) being aligned parallel to the piston-cylinder arrangement (7) assigned to the range group (2c) and in the second geometric plane (5) is arranged - wobe i is the adjusting direction of the piston-cylinder arrangement (7) assigned to the range group (2c) for transmitting an adjusting force opposite to the adjusting direction of the piston-cylinder arrangement (8) assigned to the splitter group (2b), and - wherein in an installation position of the Actuator housing (3), the first geometrical plane (4) is defined as a horizontal plane and the second geometrical plane (5) as a vertical plane, - so that the range group (2c) associated piston-cylinder assembly (7) with the Piston-cylinder arrangement (6) associated with the main transmission (2a) in the horizontal plane (4) and with the piston-cylinder arrangement (8) associated with the splitter group (2b) in the vertical plane (5) forms a mutually parallel arrangement. Automated gearbox (2, 2a, 2b, 2c) with an actuating device (1) for shifting gears, which is constructed according to one of the device claims. Commercial vehicle with an automated manual transmission (2, 2a, 2b, 2c) and with an actuating device (1) for shifting gears of the manual transmission (2, 2a, 2b, 2c), which is constructed according to one of the device claims.

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