EP2126417A1

EP2126417A1 - Actuating device with selector lever return

Info

Publication number: EP2126417A1
Application number: EP08715530A
Authority: EP
Inventors: Andreas Giefer; Jörg Meyer; Ludger Rake
Original assignee: ZF Friedrichshafen AG
Current assignee: ZF Friedrichshafen AG
Priority date: 2007-03-27
Filing date: 2008-03-05
Publication date: 2009-12-02
Also published as: JP2010522115A; KR20090122450A; KR101394678B1; WO2008116437A1; CN101646883B; DE102007015262A1; CN101646883A; US8336418B2; US20100024584A1; JP5264879B2; DE102007015262B4

Abstract

The invention relates to an actuating device for selecting shifting stages of a shift-by-wire gearshift mechanism. The actuating device comprises a selector lever that can be moved between at least one driving position and one parking brake position, the lever having stable selector lever positions, and a detent device with a spring-loaded detent element (6) and a detent link. According to the invention, the actuating device is characterized by a separating device having a thrust wedge (7) that is driven by an actuator. By means of the thrust wedge, the detent element (6) and detent link can be moved out of a first relative position, in which the detent element (6) engages in a switching track of the detent link, into a further relative position, in which the detent element (6) is not engaged in the switching track of the detent link. The invention provides for an automatic return of the selector lever into the parking brake position and thus provides the driver with optical and also tactile correct feedback about the actual shifting state of the transmission.

Description

Actuator with selector lever return

description

The invention relates to an actuation device for a gear change transmission, in particular for an automatic transmission with shift-by-wire actuation, according to the preamble of patent claim 1.

Gear change transmissions of motor vehicles are usually controlled or switched by means of an operating device arranged in the grip region of the driver. For this purpose, actuating elements such as shift levers or selector levers are regularly used, which are arranged, for example, between the front seats of the motor vehicle.

The design and ergonomic requirements of such Betätigungsemrichtungen or selector lever for gear change are manifold. For example, in order to provide the driver with a realistic feeling of transmission actuation for reasons of safety and ergonomics, it is required for generic actuation devices that the driver is provided with both visual and clear haptic or tactile feedback. From this, the driver should be able to close the operation actually done in the gear shift when operating the selector lever. Likewise, it should be possible for the driver to be able to intuitively grasp the instantaneous switching state of the transmission with a glance or a handle to the selector lever. It is therefore desirable to provide the driver with the aid of the respective instantaneous position or angular position of the selector lever, a clear visual and haptic feedback on the current transmission state or on the actually engaged gear.

In the case of a mechanical transmission actuation or a mechanical coupling between selector lever and gear change transmission - for example by means of cable or rod - the selector lever position always agrees with the actual gear position due to the mechanical coupling there. Since mechanically operated speed change transmissions are generally multistable (the transmission shift position is stable in several or all positions, so does not change automatically), and the associated selector lever is multistable and thus remains as well as the change gear always in the respectively inserted by the driver position or gear.

The driver can therefore close on the one hand from the respective selector lever position to the current switching state of the transmission, or recognize the gear lever in each case engaged gear on the basis of the selector lever position, and on the other hand rely on the selector lever position does not deviate from the actual switching state of the transmission.

In the case of increasingly used electrical actuation, or the so-called shift-by-wire actuation of gear change transmissions, however, there is no longer mechanical coupling between the actuating element or selector lever in the passenger compartment and the motor vehicle transmission in the engine compartment. Rather, the transmission of the switching commands from the actuator to the motor vehicle transmission in the case of the "shift-by-wire" -driven transmission usually exclusively by means of electrical or electronic signals and by means of subsequent mostly electro-hydraulic conversion of the switching commands. This is partly true for both modern shift or gear change, but in particular for the current generations of automatic transmissions, which are usually completely actuated remotely actuated.

In the case of the by-wire-operated gear change transmission, however, the lack of mechanical connection between the Getriebeanktuatorik and the selector lever can cause the selector lever position no longer coincides with the switching state of the transmission under certain conditions or in the event of a fault.

Thus, modern automatic transmissions generally have a so-called Auto-P function, which ensures that when leaving the vehicle possibly the parking brake is automatically engaged in the transmission, so as to prevent rolling of the unattended vehicle, if the driver Inserting the parking lock before leaving the vehicle has failed. In other words, the auto-P function, which in particular automatically occurs when the ignition key is removed or the vehicle is left, ensures the automatic engagement of the parking brake in the transmission, regardless of the gear selected actually on the selector lever. The parking brake is thus engaged by the auto-P function of the transmission or the vehicle when the selector lever was left by the driver, for example in the neutral position, in an existing tipgasse, or in one of the driving position.

In this case, however, the selector lever position is no longer consistent with the actual switching state of the transmission. When returning to the vehicle, or in a start attempt of the vehicle, based on the selector lever position therefore both optically and haptically initially given an inaccurate information to the driver. Based on the perception of the selector lever position, the driver would therefore assume that the transmission is, for example, in the neutral position or in a drive position, while in the transmission, in contrast, the parking brake is engaged. This discrepancy between the selector lever position and the transmission state could thus lead to unwanted operating errors, to erroneous conclusions by the driver and thus also to safety-critical situations. To this To prevent this, an additional signaling device for the driver must be provided, which signals the driver in the event of the parking lock engaged by Auto-P, that the vehicle can only be started when first the selector lever manually in the parking brake position and thus in accordance is brought to the actual switching state of the transmission.

It has been attempted to counteract the problem presented so that the selector lever of shift-by-wire gear change transmissions have been designed as monostable actuators. In other words, this means that such a monostable selector lever always returns to the same center position after each actuation. The feedback on the actual switching state of the transmission is thus left in a monostable selector lever exclusively a separate display, for example by means of light emitting diodes. On the other hand eliminates the opportunity for a monostable selector lever, the driver on the basis of the selector lever position optical or haptic feedback übeT to convey the switching state of the transmission. Furthermore, the realization of the mechanical switching logic and the necessary shift locks - such as the so-called. Keylock and Shiftlock locks - in monostable selector levers is usually difficult and requires a complex actuator for selectively blocking inadmissible switching commands depending on the driving condition of the motor vehicle, which is structurally complex is and causes corresponding costs.

For example, the safety function known as the so-called keylock system in the automatic gear change transmission leads to a blockage of the selector lever in position "P" as long as the ignition key is removed.

This is - for actuators with mechanical coupling to the gear change gear - prevents accidental actuation of the selector lever can be done with removed ignition key or ignition switched off and thus unintentional interpretation of the parking brake in the transmission, after which the vehicle could set in motion undesirable. Another example of such, with monostable selector levers feasible only with relatively great effort safety function is the shift lock lock, which serves to ensure that can be switched out for safety reasons only when the brake from the switch positions "P" and "N". This also serves the purpose of preventing an uncontrolled start of the vehicle already at the moment of engaging a gear.

The known, monostable trained controls also have the disadvantage that the driver has to get used to a new operating concept with the always back to the middle position lever, this operating concept differs significantly from the traditional transmission operation.

With this background, it is thus the object of the present invention to provide an actuating device for a change-speed gearbox with which the said disadvantages existing in the prior art can be overcome. With the invention is to be made possible that even with shift-by-wire-controlled gear change transmissions the selector lever position always reflects the actual switching state of the transmission, whereby a reliable visual and tactile feedback on the actual switching state of the transmission should be realized. In particular, it should be prevented that the selector lever in the case of automatically engaged parking brake ("Auto-P") remains misleading in one of the driving position, while in the transmission, however, the parking brake is actually engaged.

This object is achieved by an actuating device having the features of patent claim 1.

It is a further object of the invention, an actuator for a gear change, in particular the storage of a selector lever that allows movement of the selector lever between at least two shift gates, structurally simple, very compact and cost-effective and robust perform. This object is achieved by an actuating device having the features of patent claim 11.

Preferred embodiments are the subject of the subclaims.

In itself initially known manner, the actuating device according to the present invention comprises a selector lever and a locking device with a latching element which slides spring-loaded in a detent gate. The selector lever - in accordance with the traditional operating concept - is designed as a multi-stable operating element with stable selector lever positions.

According to the invention, however, the actuating device is characterized by a separating device with an actuation - for example, electric motor or electromagnetically - driven thrust wedge. By means of the thrust wedge latching element and latching gate can be spent from a first relative actuator position in a further relative position. In the first relative position, the latching element engages latching in corresponding latching recesses of the latching gate, which represents the normal operation of the actuating device, with corresponding detenting of the selector lever in the individual selector lever positions. In the further relative position, however, the detent element is disengaged from the latching track of the detent gate.

In other words, this means that the existing in normal operation, latching engagement of the locking element in the detent gate can be canceled reliably and in a structurally simple manner thanks to the inventive device with pusher. Thereafter, the selector lever can be smoothly and quietly set in motion, in particular automatically return to the parking brake position. The latter can for example be actuated or by spring force, since the selector lever braking reaction and friction forces of the locking element in the Rastkuhsse be eliminated thanks to the separator according to the invention. If, for example, the driver has failed to manually engage the parking brake when the vehicle is parked, then the parking lock is automatically engaged by the transmission control after the ignition key has been removed or the vehicle has been left. Further, by means of the inventive separating device and, for example, a return spring or an actuator, the selector lever is automatically returned to the parking lock position from the last engaged drive position, so that the actual shift state of the transmission (parking lock) finally coincides with the position of the selector lever ("P") agrees again. In this way, there is a correct optical and haptic feedback on the gear state to the driver even in the case of automatically inserted by means of auto-P function by the gear change parking brake.

According to a preferred embodiment of the invention, the actuating device further comprises a driving device connected to the thrust wedge for actuator displacement of the selector lever from a first shift gate into a further shift gate. The entrainment device can be brought to bear against a stop region connected to the selector lever.

In this way, a highly advantageous dual function of the actuatorally driven thrust wedge is achieved by this is used on the one hand for deactivating the locking device, and on the other hand also responsible for the actuator displacement of the selector lever, for example from the tipgasse out in the Fahrstufengasse. As a result, the selector lever can thus be returned from each selector lever position, in particular from the tip track, in the parking brake position.

The type and structural design of the locking element is initially not crucial to the realization of the invention. For example, the latching element may be a spring-loaded roller. According to a preferred embodiment of the invention, however, the locking element is spring-loaded Detent pin formed. Preferably, the locking pin is connected at its end remote from the detent gate with a lifting pin, for example, penetrated by the lifting pin, and the lifting pin is engaged by the thrust wedge.

In this way, a structurally simple and reliable power transmission from the thrust wedge results in the locking element designed as a locking element. In the sense of a symmetrical power transmission to the lifting pin and to avoid tilting of the locking bolt of the thrust wedge is preferably formed fork-shaped and can thus engage under the lifting pin symmetrically at its two ends.

According to a further, particularly preferred embodiment of the invention, the actuating device comprises an actuatable sliding control link and an engaging with the control link, driven by the control link pivot lever, wherein the pivot lever is in turn operatively engaged with the pusher.

This results in a structurally advantageous and space-saving arrangement of the drive for the thrust wedge. Thus, in particular, as is also provided according to a further embodiment of the invention, the control link can be arranged linearly displaceable in the vehicle longitudinal direction, while pivot lever, driver and thrust wedge are arranged so that their movement and possibly the actuator displacement movement of the selector lever between the shift gates in Vehicle transverse direction takes place. In addition, the control link can be used with constructive advantage for other tasks in the actuator, as shown below.

Preferably, the actuator comprises an actuatorally driven linear spindle for the sliding actuation of the control link, wherein the drive of the linear spindle is preferably carried out by a servo motor. For the realization of the invention, it is initially not important in which way the actuator actuation of the selector lever, in particular the automatic return of the selector lever takes place in the parking brake position. So it is conceivable, for example, that the selector lever - after the deactivation of the locking device by the separator - automatically falls back into the parking brake position due to an application of spring force by a spring accumulator, or that this is a separate actuator is used.

According to a particularly preferred embodiment of the invention, however, an acting between the control link and selector lever stop means for actuatoric pivotal movement of the selector lever is provided. The stop device is used for actuatoric pivoting of the selector lever, in particular within the Fahrstufengasse for aktuatorischen feedback of the selector lever in the parking brake position, resulting in a structurally very advantageous multiple benefits of Steuerkulisse. Because in this way the control link serves both to drive the pivot lever and thus the thrust wedge or the separating device, as well as in addition to the actuator pivotal movement of the selector lever.

The invention further relates to an actuator for selecting shift stages of a gear change transmission, in particular an automatic transmission with shift-by-wire operation, wherein the actuating device comprises a selector lever with a plurality of selector lever positions and at least two shift gates.

The actuating device is characterized in that the selector lever - for selecting the switching stages - is pivotable in the direction of travel about a bearing axis, and additionally displaceable transversely to the direction of travel along the bearing axis. In this way, a structurally particularly simple, robust and thus cost-effective representation of the storage of the selector lever results both with respect to the driving position along the vehicle longitudinal direction, as well as with respect to the shift gate positions of the selector lever transverse to the direction of travel. In other words, this means that the Wählliebel along the bearing axis transversely to the direction of travel - in particular between a Tipgasse and a Fahrstufengasse - can be moved back and forth, while the actual selection of the speed levels, or the manual gear changes in the Tipgasse by pivoting the Selector lever is done around the bearing axis. In this case, this actuator is particularly well suited for combination with the above-described separator and the associated actuator.

With this background, a particularly preferred embodiment of the invention also provides that, in the case of an actuating device with a selector lever displaceable along the bearing axis and with a detent device and separating device, the thrust wedge and the entrainment device are integrally formed and mounted on the bearing axis. This embodiment is characterized in particular by cost manufacturability and by structurally simple and space-saving arrangement of the thrust wedge and the driver.

In the following the invention will be explained in more detail with reference to exemplary embodiments illustrative drawings. It shows:

Fig. 1 is a schematic isometric view of an embodiment of a

Actuator according to the present invention with the selector lever in the Tipgassenstellung;

Fig. 2 in a Fig. 1 corresponding representation and view the

Actuating device according to Figure 1 with activated thrust wedge.

Fig. 3 in a Fig. 1 and 2 corresponding representation and view the

Actuating device according to Figures 1 and 2 with transferred into the Fahrstufengasse selector lever. Fig. 4 in a Fig. 1 to 3 corresponding representation and view the

Actuating device according to Figures 1 to 3, with in the parking brake position recycled selector lever; and

Fig. 5 in a further schematic isometric view of the

Actuating device according to FIGS. 1 to 4 in the position according to FIG. 1 with viewing direction according to arrow P in FIG. 4.

Fig. 1 shows a schematic isometric illustration of an embodiment of an actuating device according to the invention for a gear change transmission.

It can be seen first of all a Wählliebel 1 with schematically indicated actuating knob 2. By means of dashed lines 3, the possible in this embodiment selector lever positions are indicated. In the positions that can take the selector lever 1, this is the center position in the Tipgasse in which the selector lever 1 according to FIG. 1 is currently located, also in the Tipgasse to the Tipstellungen "+" and "-" for Manual gear change, as well as in the Fahrstufengasse to the driving position P, R, N and D to select the appropriate mode or gear ratio of the associated automatic transmission.

Integrally connected to the selector lever 1, the selector lever bearing 4 and a housing 5, in which a spring-loaded locking pin 6 is arranged. The locking pin 6 is part of the locking device of the illustrated actuating device, which further has a (not shown for clarity) detent gate with detent recesses. The locking recesses are assigned to the stable selector lever positions P, R, N and D and the center position in the Tipgasse such that the selector lever 1 remains after selecting one of these positions in each case in the selected position.

From Fig. 1 also shows the separator out, with the locking pin 6 can be withdrawn and thus disengaged from the detent gate to allow the subsequent automatic return of the selector lever 1 in the parking brake position "P". The separating device comprises in particular the here fork-shaped thrust wedge 7 and a lifting pin 8, which is connected to the detent gate end facing away from the locking bolt 6 with the locking pin 6 and movably received in a slot 9 in the locking bolt housing 5.

Upon displacement of the thrust wedge 7 along the movement direction indicated by the arrow X causes the inclined plane of the thrust wedge 7 lifting the lifting pin 8 within the slot 9, whereby the locking pin 6 connected to the lifting pin 8 is retracted into the locking pin housing 5 and so out of engagement the (not shown) Rastkulisse device. During this lifting of the lifting pin 8, the thrust wedge 7 is supported on a support collar 10 arranged on the locking bolt housing.

The associated situation - after the displacement of the thrust wedge 7 - is shown in Fig. 2. It can be seen that the pusher wedge 7 moves in the direction of the latching bolt housing 5 and the latching bolt 6 has been pulled back into the latching bolt housing 5 by means of a lifting movement of the lifting scissor 8.

The movement of the thrust wedge 7 takes place via a pivot lever 11 which is pivotally mounted at its lower end related to the drawing about a connected to the (not shown) housing base of the actuator pivot axis, and at its subscription-related upper end a shift fork 12 has. The shift fork 12 of the pivot lever 11 engages in a driving groove of a driver 13 connected to the pusher 13, wherein the driver 13 is pushed onto the bearing axis 14 of the selector lever 1 and thus - in addition to the support collar 10 - simultaneously forms a further storage for the pusher wedge 7 , which is integrally connected to the driver 13.

The pivoting movement of the pivoting lever 11 in turn is caused by a control link 15, namely by the control link 15 is moved along the direction indicated by the arrow Y via a linear spindle 16 by a servo motor 17. The deactivation of the locking device of the selector lever 1 takes place in other words over the chain of action "servomotor 17, linear spindle 16, control link 15, pivot lever 11, driver 13, pusher 7, lifting pin 8, locking pin 6".

Following the entry of the locking bolt 6 into the locking bolt housing 5, as shown in FIG. 2, the control link 15 is moved further along the direction of the arrow Y by means of the servomotor 17. As a result, first, the pivot lever 11 is further pivoted in the direction of arrow X, which also driver 13 and thrust wedge 7 further - also in the direction of arrow X - to be moved. However, driver 13 and thrust wedge 7 are already on corresponding abutment surfaces 18 on the locking pin 5 and on the integrally connected to the locking pin housing selector lever 4. Therefore, in the further movement of driver 13 and pusher 7 along the direction of arrow X in addition, a corresponding displacement of the selector lever bearing 4 and the unit of selector lever 1, selector lever bearing 4 and 5 Rastbolzengehäuse also in the direction of arrow X.

The result of this displacement movement is evident from the illustration of FIG. It can be seen that the control link 15 has been moved in the direction of arrow Y relative to the situation of FIG. 2, whereby pivot lever 11, driver 13, pusher 7 as well as the unit of selector lever 1, selector lever bearing 4 and locking pin 5 moves along the direction of arrow X have been moved.

The shift of the unit of selector lever 1, selector lever bearing 4 and detent pin 5 was carried out by sliding on the bearing axis 14 of the selector lever 1. In the range of selector lever knob 2 can be seen that the selector lever 1 has been moved from the center position of the tipgasse in the Fahrstufengasse, and now the position of the "D" corresponding position occupies.

From this position out can now be the return of the selector lever 1 in the parking brake position "P". For this purpose, the control link 15 is displaced by a further distance in the direction of arrow Y by means of the servomotor 17 via the linear spindle 16, after which the situation according to FIG. 4 results. This linear displacement of the control link 15 from the position shown in FIG. 3 in the position shown in FIG. 4 caused due to the curve 19th In the recess of the control link 15 no further sideways movement of the pivot lever 11 and thus also of the selector lever 1. The control link 15, however, has a not visible in the illustration of FIGS. 1 to 4 driving projection 20 on its underside, see Fig. 5. The driving projection 20th 3, in the relative position of control link 15 and selector lever 1 shown in FIG. 3, engages with a driver pin 21 arranged on the selector lever bearing 4. The driver pin 21 is indicated by dashed lines in both FIG. 1 and FIG.

FIG. 5 shows the situation according to FIG. 1, but viewed along the arrow P in FIG. 4. In FIG. 5, apart from the servomotor 17, linear spindle 16, control link 15, pivoting lever 11, driver 13, sliding wedge 7, bearing axis 14 , Selector lever 1 and locking pin 6 with lifting pin 8 in particular arranged on the underside of the control link 15 driving projection 20 and dashed arranged on the selector lever bearing 4 driving pin 21. The driving projection 20 of the control link 15 first strikes in the relative position of control link 15 and selector lever 4 according to FIG In the further sliding movement of the control link 15 in the direction of arrow Y thus entrainment of the pin 21 and thus pivoting connected to the pin 21 selector lever bearing 4 and the unit of selector lever 1, selector lever storage 4, locking bolt housing 5 with locking pin 6 and thrust wedge 7 in Gegenuhrz eigersinn according to FIG. 5, until finally the situation and relative position shown in FIG. 4 is reached.

From Fig. 4 it is apparent that - due to the entrainment of the pin 21 by the control link 15 - the selector lever 1 has been pivoted from the position "D" shown in FIG. 3 in the parking brake position "P" in FIG.

This means, in other words, that by means of a single linear displacement of the control link 15, starting from the position of the control link 15 of FIG. 1 or FIG. 5, to the position of the control link 15 of FIG. 4, all for returning the selector lever. 2 from the tip alley in the parking lock position required operations are triggered successively. As described in detail above, it is These operations in detail to the deactivation of the detent or the withdrawal of the locking bolt 6 in the locking bolt housing 5 (see Fig. 2), to the linear displacement of the selector lever 1 from the Tipgasse in the Fahrstufengasse (see Fig. 3) and the subsequent pivoting movement of the selector lever 1 from the drive position "D" in the parking brake position "P" (see Fig. 4).

In this case, the return of the selector lever 1 in the parking brake position works not only starting from the tip track, but also from each of the other selector lever positions D, N or R out, as shown in FIGS. 1 to 4 with the only difference that the selector lever 1 initially in each of the other selector lever positions D, N or R as the starting position.

As a result, it is clear that with the invention, an actuator for motor vehicle transmission is provided, which has the advantage over the prior art, the advantage of one with the actual switching state of the transmission always matching selector lever position. In this case, the storage of the selector lever and the actuator used for returning the selector lever structurally particularly compact, robust and therefore cost-effective. Furthermore, thanks to the invention, it is possible to ensure that the selector lever can be safely returned to the parking brake position from any desired position. In this way, the invention enables a reliable for the driver optical as well as haptic feedback on the actual switching state of the transmission, especially in the case of the automatically inserted by means of "Auto-P" parking brake.

Thanks to the cost-effective feasibility and high reliability, the invention thus makes a significant contribution to improving the ergonomics and safety of actuators for motor vehicle transmission, especially in the application in the field of shift-by-wire-controlled automatic transmission. LIST OF REFERENCE NUMBERS

1 selector lever

2 operating knob

3 selector lever positions

4 selector lever bearing

5 locking bolt housing

6 stop bolts

7 thrust wedge

8 lifting pin

9 slot

10 support collar

11 pivot lever

12 shift fork

13 drivers

14 bearing axis

15 control link

16 linear spindle

17 servomotor

18 contact surfaces

19 scenery curve

20 driving ahead

21 driving pin

Claims

Actuator with heat lever return Patent claims

1. actuating device for selecting shift stages of a shift-by-wire gear change transmission, the actuating device comprising a movable between at least one drive position and a parking brake position selector lever (1) with stable selector lever positions and a locking device with a spring-loaded locking element (6) and a detent gate, characterized by a separating device with an actuatorally driven pusher (7), wherein latching element (6) and latching linkage by means of the thrust wedge (7) from a first relative position, in which the latching element (6) engages in a switching track of the latching backdrop, are brought into a further relative position in which the detent element (6) is disengaged from the shift track of the detent gate.

2. Actuating device according to claim 1, characterized by a with the thrust wedge (7) connected entrainment device (13) for actuator displacement of the selector lever (1) from a first shift gate in a further shift gate, wherein the entrainment device (13) at one with the selector lever ( l) connected stop area (18) can be brought to bear.

3. Actuating device according to claim 1 or 2, characterized in that the latching element is designed as a spring-loaded locking pin (6).

4. Actuating device according to claim 3, characterized in that the latching pin (6) at its end of the detent gate end is connected to a lifting pin (8), wherein the lifting pin (8) of the thrust wedge (7) is under attack.

5. Actuating device according to one of claims 1 to 4, characterized in that the thrust wedge (7) is fork-shaped.

6. Actuating device according to one of claims 1 to 5, characterized by an actuarially displaceable control link (15) and one with the control link (15) in drivingly engaged pivot lever (11) for actuating the thrust wedge (7).

7. Actuating device according to claim 6, characterized in that the control link (15) is arranged linearly displaceable in the vehicle longitudinal direction.

8. Actuating device according to claim 6 or 7, characterized by an actuatorally driven linear spindle (16) for displacement of the control link.

9. Actuating device according to claim 8, characterized in that the drive of the linear spindle (16) takes place by servo motor (17).

10. Betätigungsseinriclitung according to any one of claims 6 to 9, characterized by a between control link (15) and selector lever (l) acting stop means (20, 21) for aktuatorischen pivotal movement of the selector lever (1) by the control link (15).

11. Actuating device for selecting shift stages of a shift-by-wire gear change transmission, the actuating device comprising a selector lever (l) with several selector lever positions and at least two shift gates, characterized in that the selector lever (l) in the direction of travel about a bearing axis (14) pivotally and transversely to the direction of travel along the bearing axis (14) is displaceable.

12. Actuating device according to claim 11 with locking device and separating device according to one of claims 1 to 10, characterized in that the thrust wedge (7) and driving device (13) integrally formed and on the

Bearing axis (14) are stored.