DE102014200257A1 - Actuator assembly for gear selection in a vehicle transmission - Google Patents

Abstract

The present invention relates to an actuator assembly for gear selection in a vehicle transmission, in particular an automatic transmission, with at least - an actuator unit (4, 6) having a plurality of actuating elements (4a-4d, 6a-6d) for acting on switching means to the means Switching means for engaging a gear one of several idler gears of the vehicle transmission (G) selectively couple and rotatably connected to a shaft (L1, L2) of the transmission (G) can connect, and - an actuator unit (2) with at least one adjustably mounted actuator element (21 ) which can be adjusted in response to an electrical control signal to effect engagement of a new gear by acting on at least one actuator (4a-4d; 6a-6d). According to a first aspect of the invention, pivotally mounted actuating elements (4a-4d; 6a-6d) and at least one selector element (3; 5) are provided, wherein the selector element (3; 5) has a plurality of switching sections (30,31,32; 51, 52) for acting on the pivotally mounted actuating elements (4a-4d, 6a-6d), - by means of the actuator element (21) axially along an actuator axis (A) is adjustable and - is rotatable about the actuator axis (A), and wherein the selector member (3; 5) is rotatable to move along the actuator axis (A) via a particular shift portion (31, 32, 51, 52) on at least one of the actuators (4a-4d) during an adjustment initiated by the actuator member (21) 6a-6d), so that this actuating element (4a-4d; 6a-6d) is pivoted and thereby a certain idler gear is coupled in via the switching means. A second aspect of the present invention relates to a mechanical energy storage device for an actuator assembly, which can be loaded via a rotatable adjusting element.

Description

The present invention relates to an actuator assembly for gear selection in a vehicle transmission, in particular according to the preamble of claim 1.

A generic actuator assembly includes, inter alia, an actuator unit having a plurality of actuators for acting on switching means of the transmission, and an actuator unit with at least one adjustably mounted actuator element, which can be adjusted to an electrical control signal to the insertion of a new gear by acting on at least to effect an actuator of the actuator unit. The switching means include, for example, a shift linkage with a shift fork or a plurality of shift forks, so that selectively coupled by means of the switching means for engaging a gear one of several idler gears of the vehicle transmission and rotatably connected to a shaft of the transmission.

Such Aktorbaugruppe is used for example for planetary gear automatic transmission, automated manual transmission and in particular in dual-clutch transmissions. In automated transmissions and in particular dual-clutch transmissions several idler gears are freely rotatably mounted on a transmission shaft and a tooth / idler gear is positively engaged when engaging a gear with a shaft of the transmission, so for example a transmission shaft or a countershaft. The engagement of a gear via a shift fork, which is usually arranged next to the respective shaft and slidable in the direction of the shaft center axis. This shift fork engages in a co-rotating on the shaft shift sleeve. From a central position, this shift sleeve can usually be moved over the shift fork to both sides, where these are brought into positive engagement with a respective synchronization operation with one of the two adjacent idler gears. From this arrangement results that with a shift fork each two courses can be selected, separated by a central position in which no gear is selected. Accordingly, z. B. for a four-speed gearbox two shift forks are used, care must be taken to ensure that only one gear can be engaged and the second shift fork is in the center position.

In automated manual transmissions and dual-clutch transmissions, the circuits between the individual gears are implemented via actuator units. In common designs, these have electromotive or hydraulic drives that move in a mostly linear translation function, the associated shift fork for changing the gears in the axial direction. Depending on the embodiment, an electromechanical actuator unit can actuate all the shift forks belonging to a partial transmission (sequential transmission) or the relevant shift fork selected via a selector actuator and the circuit is implemented via a shift actuator (so-called "Active Interlock").

Common to all such electromotive systems is the property that the energy required for the switching operation must be made available at the same time by the electric drive.

Furthermore, hydraulically operated actuator assemblies for automated vehicle transmissions are known, which are equipped with a hydraulic storage volume. About gas pressure and / or spring pressure, the trapped volume is kept under pressure and continuously or intermittently refilled via a pump unit. In the case of the shift, the spring or gas bias forces the hydraulic fluid through a hydraulic valve into a hydraulic cylinder that shifts the shift fork. By specific characteristics of the hydraulics, such as Leakage at the valve gaps and regulation of the neutral position of the cylinder by proportional valve technology, it is necessary that the system constantly or at least recurrently energy must be supplied even in phases of rest. So it is e.g. necessary to constantly compensate for leaks via the pump unit, which is generated by the control element, the hydraulic valve. The hydraulic valve is usually designed as a proportional valve, since in neutral position in the middle between two gears no cylinder end position is present and this position must be adjusted extensively. This in turn brings energy input to the control element and hydraulic leakage currents at the valve with it.

However, hydraulically operating systems may be susceptible to failure or impairment of the transmission function due to contamination of the hydraulic fluid or due to temperature fluctuations. In addition, in the systems known hitherto, an increase in the dynamics during the switching process is generally only possible by increasing the installed power for the respective actuator assembly and in particular drives provided therein. However, this is associated with an increase in weight and increased costs.

The present invention is therefore based on the object to overcome the aforementioned disadvantages or at least to minimize and to provide an improved actuator assembly of the type mentioned.

This object is achieved both with an actuator assembly of claim 1 and an actuator assembly of claim 13.

• – mehrere Schaltabschnitte zur Einwirkung auf die verschwenkbar gelagerten Betätigungselemente aufweist,
• – mittels des Aktorelements axial entlang einer Aktorachse verstellbar ist und
• – um die Aktorachse drehbar ist.

According to a first aspect of the present invention, an actuator assembly is proposed which has an actuator unit, each with individually pivotally mounted actuators and at least one selector element, wherein the selector element

• - Has a plurality of switching sections for acting on the pivotally mounted actuators,
• - Is axially adjustable by means of the actuator element along an actuator axis and
• - Is rotatable about the actuator axis.

In this case, the selector element is rotatable to act at a triggered by the actuator adjustment along the actuator axis over a certain switching section on at least one - by previous rotation of the selector previously selected - actuator, so that this actuator pivots and thereby coupled via the switching means a specific idler gear becomes.

An actuator assembly according to the invention thus translates an easily controllable linear adjustment movement of an actuator element into a targeted pivoting movement of a preselected actuating element or a plurality of preselected actuating elements, if a specific (other) gear is to be inserted, preferably automatically. The selection element, for example in the form of a voting drum, is thus preferably rotatable about the actuator axis before it is axially displaced to engage another gear. The axial adjustment of the actuator element is preferably carried out by means of a first electromotive drive, while the rotation of the selector element is selected and controlled for selecting the actuation elements to be actuated or via a second electric motor drive.

It can be given in a simple manner on the interaction of the linear to be adjusted selector element with one or more pivotable actuators and the further interaction of an actuator to be pivoted with an associated, usually also linearly adjustable switching rod different switching characteristics. For this purpose, for example, a respective switching contour over which individual elements are mechanically brought into contact with each other during switching, be designed accordingly.

Against this background, it is also provided in one exemplary embodiment that at least one switching section of the selection element defines a switching contour which influences the course of a pivoting movement of an actuating element. Consequently, here, for example, the maximum distance covered by the switching contour can be predetermined and / or can be divided by the switching contour, the pivoting movement in different movement phases. In such movement phases, for example, the swivel angle respectively swept by the actuating element per time unit and / or an actuating force relayed by the actuating element may differ, such that an adjustment speed of the actuating element and / or actuating force transmitted thereto to a switching means varies during a pivoting movement.

• – zum Einlegen eines Ganges aus einer Neutralstellung in eine Betätigungsstellung verschwenkt wird oder
• – in einer Neutralstellung gehalten wird oder
• – aus einer Betätigungsstellung in eine Neutralstellung verschwenkt wird.

In a development, a switching section defines a switching contour via which an actuating element is in operative contact with the selection element

• - Is pivoted to engage a gear from a neutral position in an operating position, or
• - is held in a neutral position or
• - Is pivoted from an operating position to a neutral position.

In principle, it is particularly preferred in this context if the actuating elements are pivotable about their respective pivot axis from a neutral position along mutually opposite actuating directions. Depending on the selected rotational position of the selection element before its axial displacement for engagement of a particular gear thus a particular actuator can thus be selectively swiveled by the selector element from a neutral position in one or the other direction of actuation, thereby achieving a coupling of one or the other idler gear.

In a corresponding embodiment variant, a plurality of switching sections with different switching contours may also be provided on the selector element. In this way, a switching element of a plurality of different switching sections can be preset for interaction with a specific actuating element by rotation of the selection element, if the selection element is axially displaced to engage a gear. Each switching section can then impose a different switching movement on the actuating element.

In one embodiment variant, the selector element can simultaneously act on at least two actuation elements via at least two switching sections. This can be ensured, for example, in a simple manner that two or more actuators of a sub-transmission of a dual-clutch transmission in the desired Positions are present when an adjustment of the selector element via the actuator. Thus, for example, it would be achieved that upon actuation of the actuator unit for engaging a new gear on the unloaded partial transmission, a shift fork for coupling the desired idler gear is adjusted, but at the same time over the at least one further shift fork for the same partial transmission are adjusted so that the associated shift sleeves in a neutral center position before the desired gear is engaged.

Accordingly, it is also provided in a variant that the selection element and the actuating elements are designed and arranged such that at least one first actuating element from its neutral position or opposite actuating position in an (other) operating position and at least one second actuating element from an actuating position via the selector can be pivoted into a neutral position. In this case corresponds to an actuating position of an actuating element, for example with a einkoppelnden position of a shift fork and an associated shift sleeve and a neutral position of an actuating element with a neutral center position of the shift fork and the associated shift sleeve, in this no idler gear rotatably connected to a countershaft.

The selector element can furthermore be adjustable into a switching position along the actuator axis from an optional position in which the selector element is rotatable without an actuating element, wherein the selector element and the actuating elements are designed such that an actuation element pivoted by a selector section through the respective Switching section is held positively in the assumed position, as long as the selector element is in its switching position. The selector element and the actuator unit are here preferably designed and arranged relative to one another that the selector element in its position - before actuation of the actuator unit for engaging a gear - is not in operative connection with an actuating element of the actuator unit, but after its axial displacement along the actuator axis with a positive fit is connected to at least one actuator pivoted by the selector element and remains until the selector element has been moved back to its selected position.

For the action of the selection element on an actuating element different geometric embodiments of the selection element are conceivable.

In one embodiment variant, the selection element has, for example, at least one switching section which projects at least partially radially with respect to the actuator axis on the selection element. This can be understood to mean that the switching section protrudes radially inwards, in the direction of the actuator axis and / or radially outwards, away from the actuator axis on the selector element. At least one actuating element can have a switching jaw, with which a radially protruding region of a switching section can be brought into operative contact in order to pivot the respective actuating element.

In another embodiment variant, a switching contour of a switching section is defined by a switching opening into which a switching arm of an actuating element can engage. The switching opening may be for this purpose in cross section, for example, V-shaped or Y-shaped. Also, as mentioned above, different switching sections may be provided, of which at least one switching section has a V-shaped and at least one other switching section has a Y-shaped switching opening.

In one embodiment variant, the actuator unit further comprises a mechanical energy storage device, which can release an adjustment force for adjusting the actuator element in response to the electrical control signal in order to engage a new gear. In this case, the Aktorbaugruppe is constructed so that an adjustment direction of the actuator for charging the energy storage device and an adjustment of the actuator element for inserting a new course opposite to each other along an actuator axis. The actuator element is thus preferably exclusively translationally adjustable along an actuator axis, wherein depending on the adjustment direction, an energy storage device is loaded or an adjustment force is exerted to engage a gear.

A second aspect of the invention, which can be readily combined with the above-described first aspect of the invention, provides an actuator assembly according to claim 13, in which the actuator unit comprises a mechanical energy storage device which can release an adjusting force for adjusting the actuator element in response to the electrical control signal, to engage a new gear, and having at least one rotatable adjusting element for charging the energy storage device and adjustment of the actuator element in its rest position.

By providing a mechanical energy storage device, the power dynamics of an actuator assembly can be easily adapted because designed to provide a power to be released in case of need and thus adjustment to an actuator element to engage a desired gear, a drive device of the actuator assembly with a lower power can be used as a drive device, which would have to apply even the adjusting force for adjusting the actuator element.

The adjusting element, which is rotated to charge the energy storage device, is preferably rotatable about the actuator axis or about an axis perpendicular thereto. In the former case, the adjusting element may comprise, for example, a slide drum with a preferably central passage opening, through which the actuator element is displaceable. In the latter case, the adjusting element may comprise a rotatable cam or a rotatable cam.

Preferably, the adjustment member is rotatable via an electromotive drive means to charge the energy storage means, e.g. by tensioning a spring element of the energy storage device.

However, by rotating the adjusting element, the energy storage device can not only be charged, but also dischargeable, and thus an adjusting force for adjusting the actuator element located in its rest position can be released. In this way, both the charging of the energy storage device and its discharge and thus the triggering of the actuator unit to engage a certain (other) gear on the vehicle transmission, be controllable via a rotation of the adjusting element.

In possible embodiments, the adjusting element cooperates with at least one coupling element of the actuator element relative to which the adjusting element is rotatable in order to charge the energy storage device and to adjust the actuator element to its rest position before a gear change takes place. The coupling element is, for example, a rolling body, e.g. in the form of a rotatably mounted on the actuator element roller. Such a rolling body lies in a variant on a running surface of a slotted guide of a relative to the actuator element rotatably mounted about the actuator axis adjusting element, wherein the running surface of the slotted guide is designed such that by rotation of the adjusting element and thereby caused rolling of the rolling body on the tread the Actuator is adjusted along the actuator axis in the direction of its rest position. For this purpose, the slotted guide runs, for example, at least partially spirally around the actuator axis, along which the actuator element is adjustable. In this case, by adjusting the actuator element in the direction of its rest position and a preferably hereby coupled selection element, can be acted on the targeted at least one particular actuator of the actuator unit, adjusted and brought out of engagement with the actuator unit. The actuator element is hereby secured with its at least one coupling element against rotation about the actuator axis.

In this case, a loading, holding and / or discharging characteristic of the energy storage device can be predetermined via sections of the slotted guide. Thus, e.g. Depending on the course of a running surface of the slotted guide against which a rolling body of the actuator element is pressed, the applied for loading the mechanical energy storage device force of a drive device, as well as the course of the adjustment of the actuator when releasing the stored energy, if its rolling body here on the tread rolls.

In an advantageous embodiment, the adjusting element has at least one portion on which the coupling element is held in a positive and / or frictional engagement when the energy storage device is charged (maximum). The adjusting element therefore has at least one section, via which the energy storage device is held in a charged state, without requiring additional energy to be supplied to the energy storage device for this purpose. The energy storage device rather insists in the charged state. For example, this remains the coupling element of the actuator element on the rotatable adjusting element in a position occupied, in particular by engagement or locking in the link contour, so that the actuator element remains in its rest position when the energy storage device is maximally charged and the adjustment is no longer rotated.

Preferably, the actuator element is moved by means of the adjusting element against a force applied by a spring element of the energy storage device restoring force in a rest position to charge the energy storage device. The energy storage device thus has at least one spring energy storage in order to bias by a rotational movement of the adjusting at least one spring and thus to save energy for later actuation of the actuator unit for inserting and possibly changing a gear. The charging of the energy storage device, e.g. by tensioning at least one spring, in this case controlled by an electronic control unit such that this takes place in each case in an operating state of the transmission in which - at least for a short time - no gear change is necessary, so that the stored energy for triggering the actuator unit and adjusting the actuator for Is available when a new gear is to be inserted.

As already mentioned in the introduction, an actuator assembly according to the invention is preferred for gear selection in an automated manner Manual transmission, in particular used in a dual-clutch transmission and is accordingly designed and provided for this purpose. In this case, the selection element and the actuating elements can be designed in such a variant and arranged to each other that the selection element can act simultaneously on at least two actuators, which are assigned to the same of two partial transmissions of the dual clutch transmission.

An actuator assembly according to the invention can also be used for braking and coupling planetary gear sets of a torque converter automatic transmission.

Further advantages and features of the present invention will become apparent in the following description of exemplary embodiments with reference to the figures.

Hereby show:

1A - 1C a first embodiment of an actuator assembly according to the invention in different views and positions of an actuator unit;

2 a sectional view of one opposite the 1A - 1C supplemented embodiment of an actuator assembly without representation of an actuator unit, via the switching means are actuated to selectively couple one of a plurality of idler gears of a vehicle transmission and rotatably connected to a shaft of the transmission;

3A - 3D the actuator assembly of the 2 in different positions of an actuator element of the actuator unit;

4A - 4B Representation of another embodiment of an actuator assembly according to the invention together with adjustable over this fork forks as switching means;

5 a sectional view of the actuator assembly of 4 ;

6A - 6B Sectional views of the actuator assembly of 5 in different positions when inserting a new gear by means of the actuator unit;

6C a further sectional view of the actuator assembly of 5 with representation of a further switching contour on a switching section for actuating an actuating element of the actuator unit;

7A - 7B the actuator assembly of the 4 to 6C in a perspective view and in different positions of the actuator unit;

8th a partial representation of an embodiment of a dual clutch transmission with an actuator assembly of 4 to 6C ;

9 a schematic representation of a dual-clutch transmission, in which an actuator assembly according to the invention can be used to select the different possible gears.

In the 9 schematically is a dual-clutch transmission DK, G consisting of a dual clutch unit DK and a transmission unit G shown. Via the dual-clutch transmission DK, G, a drive torque of a motor shaft MW is provided at a transmission output shaft GAW coupled to the wheels of the vehicle. Here, the engine speed is translated to the speed of the drive wheels.

A dual-clutch transmission DK, G is a variant of a so-called automated manual transmission and has two partial transmissions TG1 and TG2. Each partial transmission TG1, TG2 has a transmission shaft GW1 or GW2 which can be coupled via the double clutch unit DK to the motor shaft MW and also a countershaft L1 or L2. One of the partial transmissions TG1, TG2 carries the even gears (in the 2 the subtransmission TG2 with the gears 2, 4 and 6), while the other subtransmission TG1 the odd gears, in this case the gears 1, 3 and 5 and usually also the reverse gear (in the 9 not shown) carries. When the first gear is engaged, the transmission shaft GW1 is coupled to the motor shaft MW via a first clutch K1 of the double clutch unit DK and transmits a drive torque via a first gear pair to the countershaft L1 of the first subtransmission TG1 and then to the transmission output shaft GAW.

To now switch between the individual gears, switching means are in the 9 schematically indicated switching sleeves SM1, SM2, SM5 and SM6 provided. These shift sleeves SM1, SM2, SM5 and SM6 are used for coupling a idler gear arranged on the countershaft L1 or L2, so that this then rotatably connected to the respective countershaft L1 or L2 and thus a drive torque can be forwarded to the transmission output shaft GAW. A shift sleeve SM1, SM2, SM5 or SM6 is in this case via a shift linkage with a plurality of shift forks as additional switching means with the desired idler gear positively engaged to the respective gear on the unloaded partial transmission TG1 or TG2 insert.

When upshifting from the first to the second gear, e.g. via the shift sleeve SM2 the corresponding idler gear rotatably connected to the countershaft L2. Subsequently, the second clutch K2 of the double clutch DK is closed and at the same time the first clutch K1 is opened. The drive torque of the motor shaft MW is no longer transmitted via the (here internal) transmission shaft GW1, but via the (outer) second transmission shaft GW2. When switching to the next higher gear initially the shift sleeve SM1 is moved in the direction of the adjacent idler gear for the third gear and then closed again the first clutch K1 and simultaneously open the second clutch K2. Thus, with a dual-clutch gearbox DK, G, a gear change between even and odd gears without interruption of traction is possible.

In the in the 9 schematically illustrated dual-clutch gearbox DK, G - but also in other automated manual transmission - there are different challenges in the pre-selection of the gear to be engaged and in particular the adjustment of the shift sleeves. For example, the shift sleeves SM1 and SM2 in the 9 to move from a central position on the respective shift fork to both sides. In this case, the respective shift sleeve SM1 or SM2 after a synchronization process with one of the two adjacent idler gears can be positively brought into engagement. This synchronization and switching process is composed of different phases, which is assigned to a corresponding force-displacement or time-distance profile. Thus, for example, when leaving the central position, a lower but increasing counterforce (due to Rastierelementen) to overcome, while synchronizing the respective shift sleeve under a high, almost constant preload temporarily comes to rest until the respective countershaft L1, L2 brought to synchronous speed is then to come into engagement with the teeth of the idler gear and produce the positive connection. The amount of preload in the synchronization process is thus crucial to how fast the synchronization process can be completed. This actuation profile requires previously customary embodiments of an actuator assembly for actuating the switching means, that is to say in particular at least one shift fork and shift sleeve SM1, SM2, SM5 or SM6, a design of a drive of the actuator unit to the maximum occurring load. In other words, the torque of an electric motor or the thrust of a hydraulic cylinder for adjusting an actuator element of the actuator must be dimensioned such that in the phase of the synchronization process sufficient force is available with almost no movement, while in other phases much movement at lower forces (high Dynamics) would be required.

Frequently, the electromotive or hydraulic drives used for this purpose are provided to move in a mostly linear translation function, the respectively associated shift fork for changing the gears in the axial direction. Depending on the embodiment, an electromechanical actuator unit can actuate all shift forks belonging to a partial transmission TG1 or TG2 (so-called sequential transmission) or via a selector actuator the relevant shift fork is selected and the circuit is executed via the switch actuator (so-called "active interlock").

In the case of such previously known actuator assemblies, it is regularly provided that the energies which are required for the respective switching operation must be made available at the same time in response to a control signal. In particular, hydraulic systems are known which are equipped with a storage volume. About gas pressure and / or spring pressure, the trapped volume is kept under pressure and continuously or intermittently refilled via a pump unit. In the case of the shift, the spring or gas bias forces the hydraulic fluid through a hydraulic valve into a hydraulic cylinder that shifts the shift fork. It is necessary that the system constantly and repeatedly energy must be supplied even during periods of rest. So it is e.g. necessary to constantly compensate for leaks via a pump unit. In addition, such systems are susceptible to malfunction due to contamination and / or temperature fluctuations due to the hydraulic fluid used.

The aforementioned disadvantages can now be avoided or at least minimized with an actuator assembly according to the invention.

Here, according to a first aspect of the present invention as part of an actuator assembly for gear selection in a vehicle transmission, such as in the 9 schematically illustrated dual clutch transmission DK, G, an actuator unit provided with pivotally mounted actuators for acting on the switching means and for engaging a gear and at least one rotatable about an actuator axis and axially along the actuator axis adjustable selector. The selector member is rotatable to at least one of the in a triggered by an actuator element of an actuator of the Aktorbaugruppe adjustment along the actuator axis over a certain switching section of the selector element Actuate elements, so that this actuator is pivoted and thereby coupled via the switching means a specific idler gear of the transmission. By combining an actuator with adjustable actuator element and a both linearly and rotatably adjustable selector element with pivoting actuators, the switching process when inserting a desired gear easier and in particular almost independent of the particular drive used for the actuator and its control set. Thus, a switching operation can already be specifically controlled by appropriate switching contours, via which the selection element and the actuating elements and the actuating elements and the switching means are brought into operative contact with each other.

According to a second aspect of the invention may be additionally or alternatively provided that the actuator comprises a mechanical energy storage device and at least one rotatable adjusting the energy storage device is provided to charge the energy storage device and to adjust the actuator element in a rest position from which it is required to act on the Actuator unit - for example, via a selector lever according to the first aspect of the invention - is adjustable by means of the stored energy, so that a desired and / or predetermined via an electronic control gear is engaged. In particular, by training as an electromechanical system with a mechanical energy storage device can be achieved that only an electromotive drive device for the actuator with a comparatively small power must be used to charge the mechanical energy storage device, but still a sufficiently large adjustment force to engage the respective gear is available.

In the 1A . 1B and 1C is now a first inventive embodiment of an actuator assembly 1 presented in different views and position.

The actuator assembly 1 includes an actuator unit 4 with several individually pivotable actuators 4a . 4b . 4c and 4d to act on a plurality of switching means, not shown here, such as shift forks, each with an associated shift sleeve to selectively coupled by means of the switching means one of several loose wheels of a vehicle transmission and rotatably connect to a shaft of the transmission can. For actuating the actuators 4a to 4d the actuator unit 4 is an actuator unit 2 with an actuator element mounted so as to be adjustable along an actuator axis A in the form of an actuator sleeve 21 intended. The actuator sleeve 21 is with a voting element in the form of a voting drum 3 coupled so that in a linear adjustment of the actuator sleeve 21 along the actuator axis A and the election drum 3 is adjusted along the actuator axis A. The election drum 3 can in this case for inserting a certain gear in a vehicle transmission, for example, the double-clutch transmission DK, G of 9 be engaged with a pair of the actuating elements, here as a pivotally mounted actuator lever 4a to 4d are formed. Each of the in the embodiment of 1A to 1C provided two pairs of actuator levers 4a . 4b and 4c . 4d For example, it is assigned to a partial transmission TG1 or TG2.

By now on a control signal of a control unit, not shown here, an adjustment of the actuator sleeve 21 is triggered along the actuator axis A from a rest position in a switching direction S1, acts the present pinion-like election drum 3 on two actuator levers, in the 1C the actuator lever 4a and 4b one. The pivotable about pivot axes Ba, Bb actuator lever 4a and 4b are thereby pivoted; the one actuator lever 4a from one in the 1A apparent neutral position along an actuating direction Va in one (outer or lower) operating position and at the same time the other actuator lever 4b from an (inner or upper) operating position to a neutral position. This is done by the actuator lever 4a a certain gear engaged while through the other actuator lever 4b the same subtransmission TG1 or TG2 is ensured that an adjacent idler gear is no longer coupled. The actuator levers 4a to 4d each act via operating sections 41 on here not shown shift forks.

To about the election drum 3 as required, the actuator lever 4a to 4d from their respective neutral position along one of two opposite actuating directions Va and Vb in one of two possible operating positions and vice versa to be able to adjust back to its neutral position, has the election drum 3 several switching sections 30 . 31 and 32 with, relative to the actuator axis A, radially inwardly and outwardly projecting areas. The individual on an inner and outer perimeter of the election drum 3 the election drum 3 provided switching sections 30 . 31 and 32 thus define different switching contours 300 . 301 . 310 . 311 . 320 and 321 when in contact with an actuator lever 4a to 4d affect its pivotal movement.

This is how each actuator lever points 4a to 4d a cross-sectionally U-shaped switching mouth 40 on, in the one the switching sections 30 . 31 and 32 forming peripheral wheel of the shift drum 3 can be introduced so that the peripheral wheel between the legs of the U-shape is bordered. About the different strong and partially ramped protruding portions of the switching sections 30 . 31 and 32 can then, for example, on one of the legs of a shift mouth 40 be acted upon so that the associated actuator lever 4a . 4b . 4c or 4d Performs a specific pivoting movement in one or the other direction of actuation Va or Vb. Over on the thighs of each Schaltmauls 40 trained counter surfaces 401 and 402 , Which in the embodiment shown each have a convexly curved end in the direction of the other leg, is a defined operative contact between a switching section 30 . 31 or 32 the election drum 3 and the respective actuator lever 4a to 4d ensured while making a sliding contact.

In the illustrated embodiment, via a first type of switching section 30 with radially inwardly and outwardly identically projecting areas, which have an outer and inner switching contour 300 and 301 define that reaches the respective actuator lever 4a . 4b . 4c or 4d is pivoted to its neutral position or held in its already assumed neutral position when the election drum 3 by triggering the actuator unit 2 is adjusted and engaged with one of the actuator lever 4a to 4d located. Another, spaced from the first switching section 30 arranged switching section 31 has switching contours 310 and 311 on, where the outer switching contour 310 projects more strongly over a ramp-like area than a radially inner switching contour 311 , In contact with this switching section 31 thus becomes an actuator lever 4a . 4b . 4c or 4d over the outer switching contour 310 , relative to the switching direction S1 of the actuator sleeve 21 , swung outwards. In a third type of switching section 32 the election drum 3 this is just the opposite and an internal switching contour 321 is more radially than an outer switching contour 320 , In this way, this is in contact with an actuator lever 4a . 4b . 4c or 4d a pivoting in an opposite direction of actuation Vb, reached inside.

To the election drum 3 to insert a desired gear quickly from a rest position in which the election drum 3 in the desired relative position about the actuator axis A relative to the actuator unit 4 is rotatable, in engagement with the desired actuator levers 4a to 4d to bring is an energy storage device on the actuator unit 2 intended. This energy storage device comprises in addition to the actuator sleeve 21 an adjustment in the form of a link drum 20 and one within the actuator sleeve 21 provided compression spring 22 , The scenery drum 20 has a disk-like portion with a drive surface 200 on, at the one in the 1A to 1C not shown (first) drive device attacks. About this drive device, which preferably has an electric motor is the slide drum 20 rotatable about the actuator axis A. By turning the link drum 20 becomes the actuator sleeve axially displaceably mounted therein 21 against the spring force of the compression spring 22 moved along the actuator axis A. By turning the link drum 20 thus becomes the compression spring 22 compressed and thus stored energy.

The axial displacement of the actuator sleeve 21 is thereby by interaction of two slide guides 201 the scenery drum 20 with two attached to the outside of the actuator sleeve 21 diametrically opposed coupling elements in the form of rollers 21a and 21b reached. The two rollers 21a and 21b are on the actuator sleeve 21 rotatably mounted and are located on a running surface of the slotted guide 201 on. The slotted guide extends in a first section 201 spirally about the actuator axis A and here has one against the direction of rotation of the slide drum 20 rising course, so that upon rotation of the slide drum 20 and rolling up the rollers 21a and 21b on the rising section 201 the actuator sleeve 21 in shift direction S2 from the actuator unit 4 away linearly. The history of the section 201 the slide tour 201 , in particular the steepness of the loading flank defined therewith is adapted to the system parameters in such a way that a drive motor is attached to the link drum 20 attacking drive means within a predetermined loading time the compression spring 22 compressed to its maximum preload. This charging with the compression spring 22 provided mechanical energy storage device 20 . 21 . 22 , Which takes place in an operating state of the transmission, in which no gear change is requested, for example, immediately after a switching operation, can be made by a comparatively small-sized electric motor.

At the end of the spirally rising loading flank of the gate section 201 closes another stage section 201b on, about a roller 21a and 21b each held positively and / or frictionally, so that the compression spring 22 remains locked in its maximum tensioned position when the slide drum 20 not (further) is turned. The scenery section 201b is here designed so that here the compression spring 22 over the actuator sleeve 21 no restoring moment on the scenery drum 20 exercises. This is the backdrop section 201b For example, a trough, so that the relative position of the actuator sleeve 21 to the backdrop drum 20 with tensioned spring 22 automatically locked when the respective roller 21a or 21b the section 201b the slide tour 201 reached. The energy storage device 20 . 21 . 22 thus remains in a charged state, without the need for additional energy. The actuator assembly 1 insists thus without further energy supply in a stable position with maximally stored spring energy.

About another also relatively small dimensionable drive motor of a second drive means can now, as already mentioned, the election drum 3 be rotated in the desired shift position about the actuator axis A. Will be the link drum afterwards 20 to a control signal for triggering the actuator unit 2 towards - preferably on the first drive means - further rotated, get the two rollers 21a and 21b from the respective arresting gate section 201b in a scenery section 201c the slide tour 201 with a falling edge. This makes it possible that the spring energy is released as adjusting and the Aktorhülse 21 together with the election drum 3 in the switching direction S1 in the direction of the actuator unit 4 is pressed. The through the gate section 201c defined, sloping discharge flank is formed steeper than the loading flank of the gate section 201 , In this way, the Aktorhülse 21 move much faster from its charged rest position in a discharged switching position as the other way around, when it is brought over the slide drum in its rest position. The discharged switching position of the actuator sleeve 21 is thereby by another gate section 201d at the end of the sloping discharge edge of the gate section 201c defined (cf. 1C ). By turning the link drum 201 along the same direction of rotation is now the energy storage device 20 . 21 . 22 again preferably loaded immediately and the actuator sleeve 21 with the option element 3 transferred to the rest position, so by adjusting the actuator sleeve 21 If necessary, a new gear can be inserted at short notice.

In the illustrated embodiment - as well as in particular in the embodiments explained below - a drive motor, which is the link drum 20 against the on the actuator sleeve 21 engaging spring force of the compression spring 22 turns, also braking over the scenery drum 20 on the actuator sleeve 21 act. Hereby, if necessary, the switching process can be varied and the switching dynamics can be changed.

Likewise, such a drive motor supportive on the link drum 20 act and these in addition to a rotation drive to the adjustment speed of Aktorhülse 21 and / or to vary the switching power. While always ensured in the embodiment described above, that by the compression spring 22 the rollers 21a and 21b the actuator sleeve 21 against the tread of the slotted guide 201 are pressed, this is in support of the adjustment by a drive motor during the discharge of the energy storage device 20 . 21 . 22 may not exist. It is therefore preferred in this context, the slotted guide 201 the scenery drum 20 at least in the area of the scenery section 201c form channel-shaped with the discharge edge. Such a counter contour is available, the lifting of the respective roller 21a or 21b from the slide tour 201 prevented.

Furthermore, it can be provided in one embodiment that the loading flank at the gate section 201 is formed with a varying pitch. So this example, initially a larger slope, z. B. by a convex curvature, train, so that an applied motor torque for rotating the link drum 20 remains constant, although the force passing through the compression spring 22 the adjustment is constantly increasing. Likewise, the slope of the discharge edge at the gate section 201c be varied continuously to provide an altered discharge characteristic.

Furthermore, instead of a slide drum 20 Also be used a cam, the axis of rotation perpendicular to the actuator axis A of the actuator sleeve 21 runs.

With the illustrated embodiment of a mechanical energy storage device according to the invention 20 . 21 . 22 is it possible with an actuator assembly 1 to charge a spring energy accumulator with a single (first) actuator drive of low power, to hold it in a tensioned and energy-saving position and to unload it in a controlled manner. There is no additional device for holding or triggering the energy storage device 20 . 21 . 23 necessary. Alone on the scheme of the scenery drum 20 attacking actuator drive, the first drive device, all phases are initiated, regulated and controlled. In the charged steady state, the largest part of the operating time of the actuator unit in terms of time 2 No energy is needed to maintain this condition.

In the 2 . 3B to 3D is the actuator unit 2 shown with further details. So is in the 2 and 3A to 3D not just a second drive device 25 for turning the scenery drum 20 shown, but also a spring housing 24 in which the compression spring 22 is included, and a bearing shaft 23 representing the physical adjustment axis (actuator axis A) for the actuator sleeve 21 Are defined. The bearing shaft 23 runs centrally through the spring housing 24 and the actuator sleeve 21 , On an outer lateral surface 240 of the hollow cylindrical spring housing 24 is the actuator sleeve 21 slidably guided. The spring housing 24 and the actuator sleeve 21 rest again within a hollow cylindrical recess of the slide drum 20 , on the backdrop of which 201 the actuator sleeve 21 about their casters 21a and 21b rests.

While in the 2 a sectional view of the actuator 2 is shown, the show 3A . 3B . 3C and 3D the different relative positions of the actuator sleeve 21 and the scenery drum 20 when charging and discharging the energy storage device, here next to the backdrop drum 20 , the actuator sleeve 21 and the compression spring 22 also the bearing shaft 23 , the spring housing 24 and the drive device 25 includes.

With the 4A to 4B . 5 . 6A to 6C . 7A to 7B and 8th is another embodiment of an actuator assembly according to the invention 1' illustrated. Here, the actuator assembly 1' a to the previously explained embodiments of the 1A to 1C and 2 to 3D modified actuator unit 6 and a modified election drum 5 on. The actuator unit 2 can be taken over unchanged and is in the 4 to 7B shown only schematically.

It should be noted at this point only supplementary, that in particular for the embodiment of 4A to 8th the use of a mechanical energy storage device according to the previously described embodiments of 1A to 1C and 2 to 3D Of course, not mandatory. Here would also be another adjustment mechanism for linear adjustment of Aktorhülse 21 and actuation of the actuator unit 6 conceivable.

The actuator unit 6 the actuator assembly 1' , about which on switching means in the form of a in the bottom view of 4 schematically illustrated shift linkage SG can be acted upon with shift forks SG1, SG2, SG3 and SG4, here again several pivotable about each pivot axes Ba, Bb, Bc and Bd actuator lever 6a . 6b . 6c and 6d on. The actuator levers 6a to 6d Although in this embodiment again arranged such that an axial displacement of the election drum 5 in a switching direction S1 pivoting the actuator lever 6a to 6d in the two directions of actuation Va and Vb is possible. Also, the pivot axes Ba, Bb, Bc and Bd are the actuator lever 6a to 6d each perpendicular to the actuator axis A and laterally spaced therefrom, so that one with the election drum 5 communicating leg of the respective actuator lever 6a to 6d in the direction of the election drum 5 shows. In this embodiment, each opposite actuator lever 6a and 6c or 6b and 6d assigned to a partial transmission TG1 or TG2 and are actuated simultaneously.

In contrast to the previously explained embodiments, the actuator lever 6a to 6d but no switching mouth 40 on, in which a switching section 30 . 31 or 32 can be retracted. Rather, one is in the direction of the election drum 5 each oriented leg of an actuator lever 6a to 6d in each case as elongated switching arm 60 with a contact area 600 educated. This switching arm 60 can with his contact area 600 in a switching opening of the election drum 5 intervene when the election drum 5 before triggering the actuator unit 2 was rotated accordingly to the actuator axis A. Every contact area 600 has, for example, a spherical, cylindrical shape or - as in the present embodiment - a roller 65 on.

Kick the election drum 5 with an actuator lever 6a . 6b . 6c or 6d In contact, for example via an associated shift fork SG1, SG2, SG3 or SG4 of the shift linkage SG to make a gear selection on a partial transmission TG1 or TG2 of a dual-clutch transmission DK, G, a pivoting movement of the respective actuator lever 6a . 6b . 6c or 6d via an also here radially outwardly facing end with an operating section 61 in a suitable form in a linear movement of the associated shift fork SG1, SG2, SG3 or SG4 transferred.

The election drum 5 has here to control the individual desired pivoting movements of the actuator lever 6a to 6d again differently designed switching sections 50 . 51 and 52 on. The individual circumferentially spaced switching sections 50 . 51 and 52 in each case define different switching contours via geometrically differently designed switching openings 500 . 510 and 520 , These switching contours 500 . 510 and 520 involved in an axial displacement of the election drum 5 in shift direction S1 with the roller 65 or an expression of an actuator lever 6a to 6d come in contact, are defined in a first approximation over in cross-section V- or Y-shaped switching openings. The two edges of the respective switching opening have the task, first - regardless of the current switching state of the respective operating lever 6a . 6b . 6c or 6d (inner / upper operating position, neutral position or lower / outer operating position) - the respective operating lever 6a . 6b . 6c or 6d move to its neutral position within a first movement phase. Each of the switching openings, one of the three different switching contours 500 . 510 and 520 for pivoting an actuator lever 6a . 6b . 6c or 6d define, has at least one run-up slope 5001 . 5101 or 5201 at one of the peripheral edges of the switching opening to the thus coming in contact actuator lever 6a . 6b . 6c or 6d first to transfer to a neutral position. This is done in the present embodiment for all the shift forks of a subtransmission TG 1 or TG2 simultaneously by the switching openings on the election drum 5 are arranged such that in a switching operation each actuator lever 6a . 6c or 6b . 6d a sub-transmission TG1 or TG2 is brought into engagement with a switching opening.

In a V-shaped in cross-section switching opening, in which the tip of the V-shape with respect to the switching direction S1 and the actuator axis A inward (see the switching section 52 in the 6A ) or to the outside (see the switching section 52 in the 6C ), becomes an actuator lever 6a . 6b . 6c or 6d pivoted to engage a particular gear in an operating position. For example, if the tip of the V-shape points inward, then in a second phase of motion, the roller becomes 65 or an expression of the actuator lever 6a . 6b . 6c or 6d pulled inwards into the top of the V-shape and inserted via the connection to the respective shift fork SG1, SG2, SG3 or SG4 of the corresponding gear. On the other hand, if the tip points outward, the actuator lever becomes 6a . 6b . 6c or 6d accordingly pivoted outward and the same shift fork SG1, SG2, SG3 or SG4 sets the opposite gear. At the election drum 5 are thus mutually offset in the circumferential direction switching sections 51 and 52 with different switching contours 510 and 520 provided, via which an actuator lever 6a . 6b . 6c or 6d in the one or the other direction of actuation Va or Vb can be pivoted when the respective actuator lever 6a . 6b . 6c or 6d with the corresponding switching section 51 or 52 comes into contact.

At least one other switching section 50 with which an actuator lever 6a . 6b . 6c or 6d a pair of actuator levers 6a . 6c or 6b . 6d a subtransmission TG1 or TG2 comes into contact, is further with a switching contour 500 provided over which the respective actuator lever 6a . 6b . 6c or 6d pivoted in a first movement phase in the neutral position and held in this. For this purpose, the switching opening of the corresponding switching section 50 in the present case Y-shaped.

The actuator levers 6a to 6d and the election drum 5 are presently designed and arranged to each other that on the election drum 5 only the actuator levers of a TG1 or TG2 partial transmission are always actuated. The non-switching actuator lever of the other subtransmission TG2 or TG1 are not in a switching section 50 . 51 or 52 introduced when the election drum 5 via the actuator unit 2 is shifted axially in the switching direction S1. Which actuator levers of a subtransmission TG1 or TG2 via the optional drum 5 are actuated by the relative position of the election drum 5 to the actuator unit 6 established. This is the election drum 5 to the actuator axis A via a in the 7A and 7B schematically illustrated second preferably electromotive drive device 55 rotated in the desired position - regardless of the rotation of an adjustment, such as the sliding drum 20 for charging a preferably provided energy storage device of the actuator unit 2 is provided.

The 8th further illustrates a possible arrangement of an actuator assembly 1' to a transmission housing GG of a dual-clutch transmission not shown here with a double clutch unit DK. Here is the actuator assembly 1' housed in a lying outside of the transmission housing portion or a separate actuator housing. Instead of in the 8th illustrated arrangement of the actuator assembly 1' but this can of course also in particular with their actuator unit 2 integrated into the transmission and thus be arranged partially or completely within the transmission housing GG.

In particular, in the in the 4 . 5 . 6A to 6C and 7A to 7B illustrated embodiment, it is possible to provide an actuator assembly that can work with variable gear ratios, via an actuator 2 only in one adjustment direction must apply an adjusting and the actuators, such as the actuator lever 6a to 6d , Can be adjusted in opposite directions of actuation Va and Vb with different and easily adjustable and variable switching characteristics. In addition, a mechanical locking of the individual gears of the transmission is mutually ensured in a simple manner. Incidentally, these features can also be realized by the other exemplary embodiments described.

Furthermore, the actuator unit 2 constructed in all the illustrated embodiments so that an adjustment of the actuator sleeve 21 for charging the energy storage device 20 - 25 (Switching direction S2) and an adjustment of the actuator sleeve 21 for inserting a new gear (switching direction S1) opposite to each other along an actuator axis A run. The actuator sleeve 21 is here exclusively translationally along the actuator axis A adjustable, depending on the adjustment of the actuator sleeve 21 through this an energy storage device 20 - 25 loaded or an adjusting force is exerted to engage a gear.

LIST OF REFERENCE NUMBERS

1, 1 '

actuator assembly

2

actuator

20

Sliding drum (adjusting element)

200

drive surface

201

shift gate

201a, 201b, 201c, 201d

gate section

21

Actuator sleeve (actuator element)

21a, 21b

Roller (coupling element)

22

Printer spring (spring element)

23

bearing shaft

24

spring housing

240

lateral surface

25

driving means

3

Voting drum (voting element)

30, 31, 32

switching section

300, 310, 320

External switching contour

301, 311, 321

Inner switching contour

4

actuator unit

40

shift mouthpiece

401, 402

counter surface

41

actuating section

4a, 4b, 4c, 4d

Actuator lever (actuator)

5

Voting drum (voting element)

50, 51, 52

switching section

500, 510, 520

switching contour

5001, 5101, 5201

starting slope

55

driving means

6

actuator unit

60

shifting

600, 610

contact area

61

actuating section

65

caster

6a, 6b, 6c, 6d

Actuator lever (actuator)

A

actuator axis

Ba, Bb, Bc, Bd

swivel axis

DK

Double clutch unit

G

gear unit

GAW

Transmission output shaft

GG

gearbox

GW1, GW2

gear shaft

K1, K2

clutch

L1, L2

Countershaft

MW

motor shaft

S1, S2

switching direction

SG

shift linkage

SG1, SG2, SG3, SG4

shift fork

SM1, SM2, SM5, SM6

shift sleeve

TG1, TG2

subtransmissions

Va, Vb

operating direction

Claims (26)

Actuator assembly for gear selection in a vehicle transmission, comprising at least - an actuator unit ( 4 ; 6 ), which have multiple actuators ( 4a - 4d ; 6a - 6d ) to act on switching means to selectively couple by means of the switching means for engaging a gear one of several idler gears of the vehicle transmission (G) and rotatably connected to a shaft (L1, L2) of the transmission (G), and - an actuator unit ( 2 ) with at least one adjustably mounted actuator element ( 21 ), which can be adjusted in response to an electrical control signal to engage a new gear by acting on at least one actuator ( 4a - 4d ; 6a - 6d ), characterized by - pivotally mounted actuators ( 4a - 4d ; 6a - 6d ) and - at least one election element ( 3 ; 5 ), the - several switching sections ( 30 . 31 . 32 ; 50 . 51 . 52 ) for acting on the pivotally mounted actuators ( 4a - 4d ; 6a - 6d ), - by means of the actuator element ( 21 ) is axially adjustable along an actuator axis (A) and - is rotatable about the actuator axis (A), wherein the selection element ( 3 ; 5 ) is rotatable to at a through the actuator element ( 21 ) triggered adjustment along the actuator axis (A) over a certain switching section ( 31 . 32 ; 51 . 52 ) on at least one of the actuators ( 4a - 4d ; 6a - 6d ), so that this actuating element ( 4a - 4d ; 6a - 6d ) is pivoted and thereby a certain idler gear is coupled via the switching means. Actuator assembly according to claim 1, characterized in that the selector element ( 3 ; 5 ) is rotatable about the actuator axis (A) before it is axially displaced to engage another gear. Actuator assembly according to claim 1 or 2, characterized in that at least one switching section ( 30 . 31 . 32 ; 50 . 51 . 52 ) a switching contour ( 300 . 301 . 310 . 311 . 320 . 321 ; 500 . 510 . 520 ) defines the course of a pivoting movement of an actuating element ( 4a - 4d ; 6a - 6d ). Actuator assembly according to claim 3, characterized in that a switching section ( 30 . 31 . 32 ; 50 . 51 . 52 ) a switching contour ( 300 . 301 . 310 . 311 . 320 . 321 ; 500 . 510 . 520 ), via which an actuating element ( 4a - 4d ; 6a - 6d ) in operative contact with the selection element ( 3 ; 5 ) - Is pivoted to engage a gear from a neutral position in an operating position or - is held in a neutral position or - is pivoted from an operating position to a neutral position. Actuator assembly according to claim 3 or 4, characterized in that a plurality of switching sections ( 30 . 31 . 32 ; 50 . 51 . 52 ) with different switching contours ( 300 . 301 . 310 . 311 . 320 . 321 ; 500 . 510 . 520 ) on the voting element ( 3 ; 5 ) are provided. Actuator assembly according to one of claims 3 to 5, characterized in that the selector element ( 3 ; 5 ) via at least two switching sections ( 30 . 31 . 32 ; 50 . 51 . 52 ) simultaneously to at least two actuators ( 4a - 4d ; 6a - 6d ) can act. Actuator assembly according to claim 4 and claim 6, characterized in that the selector element ( 3 ; 5 ) and the actuators ( 4a - 4d ; 6a - 6d ) are formed and arranged to one another such that via the selector element ( 3 ; 5 ) at least one first actuating element ( 4a - 4d ; 6a - 6d ) from its neutral position into an actuating position and at least one second actuating element ( 4a - 4d ; 6a - 6d ) can be pivoted from an operating position to a neutral position. Actuator assembly according to one of claims 3 to 7, characterized in that the selector element ( 3 ; 5 ) from an election position in which the voting element ( 3 ; 5 ) is rotatable without an actuator ( 4a - 4d ; 6a - 6d ) to pivot, along the actuator axis (A) is adjustable in a switching position, and that the selection element ( 3 ; 5 ) and the actuators ( 4a - 4d ; 6a - 6d ) are formed such that a through a switching section ( 30 . 31 . 32 ; 50 . 51 . 52 ) pivoted actuator ( 4a - 4d ; 6a - 6d ) by the respective switching section ( 30 . 31 . 32 ; 50 . 51 . 52 ) is held positively in the assumed position, as long as the selector element ( 3 ; 5 ) is in its switching position. Actuator assembly according to one of claims 3 to 8, characterized in that a switching section ( 30 . 31 . 32 ) at least partially with respect to the actuator axis (A) radially to the selector element ( 3 ) protrudes. Actuator assembly according to claim 9, characterized in that at least one actuating element ( 4a - 4d ) a switching mouth ( 41 ), with which a radially projecting region of a switching section ( 30 . 31 . 32 ) can be brought into operative contact to the respective actuating element ( 4a - 4d ) to pivot. Actuator assembly according to one of claims 3 to 8, characterized in that a switching contour ( 500 . 510 . 520 ) of a switching section ( 50 . 51 . 52 ) is defined by a switching opening into which a switching arm ( 60 ) an actuating element ( 6a - 6d ) can intervene. Actuator assembly according to claim 11, characterized in that the switching opening in cross-section is V-shaped or Y-shaped. Actuator assembly for gear selection in a vehicle transmission, in particular according to one of claims 1 to 12, with at least one actuator unit ( 4 ; 6 ), which have multiple actuators ( 4a - 4d ; 6a - 6d ) to act on switching means to selectively couple by means of the switching means for engaging a gear one of several idler gears of the vehicle transmission (G) and rotatably connected to a shaft (L1, L2) of the transmission (G), and - an actuator unit ( 2 ) with at least one adjustably mounted actuator element ( 21 ), which can be adjusted in response to an electrical control signal from a rest position to the insertion of a new gear by acting on at least one actuator ( 4a - 4d ; 6a - 6d ), characterized in that the actuator unit ( 2 ) a mechanical energy storage device ( 20 - 25 ) which, in response to the electrical control signal, has an adjusting force for adjusting the actuator element ( 21 ) can be released to engage a new gear, and the at least one rotatable adjusting element ( 20 ) for charging the energy storage device ( 20 - 25 ) and adjustment of the actuator element ( 21 ) in its rest position. Actuator assembly according to claim 13, characterized in that by rotation of the adjusting element ( 20 ) the energy storage device ( 20 - 25 ) not only rechargeable, but also dischargeable and thus an adjusting force for adjusting the actuator element located in its rest position ( 21 ) is releasable. Actuator assembly according to claim 13 or 14, characterized in that the adjusting element ( 20 ) with at least one Coupling element ( 21a . 21b ) of the actuator element ( 21 ) cooperates, relative to which the adjusting element ( 20 ) is rotatable about the energy storage device ( 20 - 25 ) and the actuator element ( 21 ) to its rest position before a gear change takes place. Actuator assembly according to claim 15, characterized in that the adjusting element ( 20 ) at least one section ( 201c ), on which the coupling element ( 21a . 21b ) is held positively and / or frictionally, when the energy storage device ( 20 - 25 ) is charged. Actuator assembly according to one of claims 13 to 16, characterized in that the actuator element ( 21 ) is axially adjustable along an actuator axis (A) and by means of the adjusting element ( 20 ) a displacement of the actuator element ( 21 ) against one of a spring element ( 22 ) of the energy storage device ( 20 - 25 ) applied restoring force is possible to the energy storage device ( 20 - 25 ) to charge. Actuator assembly according to one of claims 13 to 17, characterized in that the rotatable adjusting element ( 20 ) for charging the energy storage device ( 20 - 25 ) and adjustment of the actuator element ( 21 ) in its rest position a backdrop ( 201 ) having. Actuator assembly according to claim 18, characterized in that over sections ( 201 . 201b . 201c . 201c ) of the slotted guide ( 201 ) a charging, holding and / or discharging characteristic of the energy storage device ( 20 - 25 ) is given. Actuator assembly according to claim 19, characterized in that the slotted guide ( 201 ) defines a tread on which at least one rolling body ( 21a . 21b ), which on the actuator element ( 21 ) is rotatably mounted. Actuator assembly according to one of claims 18 to 20, characterized in that the slide guide ( 201 ) at least partially spirally around an actuator axis (A), along which the actuator element ( 21 ) is adjustable. Actuator assembly according to one of the preceding claims, characterized in that the actuator assembly ( 1 . 1' ) is designed and provided for the gear selection in a dual-clutch transmission (DK, G). Actuator assembly according to claim 6 or 7 and claim 22, characterized in that the selector element ( 3 ; 5 ) and the actuators ( 4a - 4d ; 6a - 6d ) are arranged and arranged relative to one another such that the selection element ( 3 ; 5 ) simultaneously to at least two actuators ( 4a - 4d ; 6a - 6d ), which are assigned to the same of two partial transmissions (TG1, TG2) of the dual-clutch transmission (DK, G). Actuator assembly according to one of the preceding claims, characterized in that an adjusting element ( 20 ) for transferring the actuator element ( 21 ) in a rest position and / or for charging an energy storage device ( 20 - 25 ) of the actuator assembly ( 1 . 1' ) is provided, which for both the transfer of the actuator element ( 21 ) in a rest position and / or charging of the energy storage device ( 20 - 25 ) as well as for triggering an adjustment movement of the actuator element ( 21 ) is adjustable for engaging a gear in one and the same adjustment direction, in particular in one and the same direction of rotation of a power-operated drive ( 25 ) is rotatable. Actuator assembly according to one of the preceding claims, characterized in that the actuator assembly ( 1 . 1' ) a power-operated drive ( 25 ) by means of which both a charging process and a discharging process of an energy storage device ( 20 - 25 ) of the actuator assembly ( 1 . 1' ) is controllable and by means of an adjustment of the actuator element ( 21 ) can be triggered to engage a gear.  Automated manual transmission with an actuator assembly according to one of the preceding claims 1 to 26 for gear selection.

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