Gear selector for selecting gears of a motor vehicle transmission

Abstract

The present invention relates to a gear selector (100) for selecting gears of a motor vehicle transmission, comprising: a shaft (1), an axially displaceable slider device (2), a selector lever (4) coupled to the shaft (1) and the slider device (2) such that the shaft (1) is rotated during a forward movement of the selector lever (4) or during a backward movement of the selector lever (4), and the slider device (2) is axially displaced during a leftward movement of the selector lever (4) or a rightward movement of the selector lever (4), a rotation angle sensor (5.1) for detecting a rotation angle of the shaft (1), a position sensor (6) for detecting an axial position of the slider device (2), and a locking device (7) by which axial displacement of the slider device (2) can be selectively mechanically blocked and released.

Description

[0001] The present invention relates to a gear selection device for selecting gears of a motor vehicle transmission, specifically a motor vehicle transmission with a shift-by-wire system.

[0002] In this context, the term "driving stages" refers in particular to both automatic driving stages such as "Drive" (D), "Neutral" (N) and "Reverse" (R), and transmission shift stages, i.e., selected gears of a transmission.

[0003] From DE 10 2017 114 591 A1, a gear selector of the type mentioned above is known, which is designed to operate in both an automatic operating mode and an H-pattern operating mode. In the automatic operating mode, the known automatic gears (D, N, R, ...) can be selected by moving the selector lever forward and backward. In the H-pattern operating mode, gears of the vehicle transmission can be selected directly – analogous to a conventional (mechanical) H-pattern – by moving the selector lever forward and backward in combination with moving it left and right.

[0004] For the purposes of the present application, an H-switch operating mode shall expressly also be understood to include an operating mode with more than four speed steps adjustable by forward / reverse / left / right movements, in which case there are more than two adjacent forward-reverse switching lanes, each of which can be exited to the left and / or right in the middle.

[0005] The present invention is based on the objective of realizing a gear selection device for selecting gears of a motor vehicle transmission, which is designed to be operated in both an automatic operating mode and an H-shift operating mode, and is relatively simple in design.

[0006] This problem is solved according to the invention by a gear selection device for selecting gears of a motor vehicle transmission with the features of claim 1.

[0007] The gear selector according to the invention for selecting gears of a motor vehicle transmission is designed to be used in conjunction with, or as part of, a so-called shift-by-wire system, wherein there is no mechanical coupling between the gear selector and the transmission mechanism, but rather electrical signals are transmitted between the gear selector and an actuator coupled to the transmission mechanism. Preferably, the electronic signals are transmitted via a vehicle bus, for example via a so-called CAN bus and / or using the so-called FIBEX standard, or via an Ethernet connection. Typically, the gear selector includes its own control unit.

[0008] The gear selector device according to the invention for selecting gears of a motor vehicle transmission comprises a rotatably mounted shaft, which preferably has a circular cross-section. The shaft can be coupled to a torsion spring, a thrust washer, a stepper motor or another type of actuator in order to generate a defined resistance when the shaft is rotated.

[0009] The gear selector device according to the invention for selecting gears of a motor vehicle transmission further comprises a sliding device that is axially displaceable, i.e., parallel to an axial direction of the shaft. The sliding device can either comprise a sliding element arranged axially displaceable on the shaft with respect to the shaft, or the shaft itself can be designed to be axially displaceable and form the sliding device or be encompassed by the sliding device.

[0010] The gear selector device according to the invention for selecting gears of a motor vehicle transmission further comprises a selector lever which is coupled to the shaft and the slider device in such a way that the shaft is rotated when the selector lever is moved forward or backward, and the slider device is axially displaced when the selector lever is moved to the left or to the right.

[0011] The gear selector according to the invention for selecting gears of a motor vehicle transmission further comprises a rotary angle sensor for detecting a rotation angle of the shaft. The rotary angle sensor can be configured to directly detect a current rotation angle of the shaft by means of suitable sensing means, or to detect a current rotation angle or position of a component coupled to the shaft by means of suitable sensing means. The rotary angle sensor is configured to output an electrical signal, for example to a control unit of the gear selector, indicating the current rotation angle of the shaft or from which the current rotation angle of the shaft can be derived.

[0012] The gear selector device according to the invention for selecting gears of a motor vehicle transmission further comprises a position sensor for detecting the axial position of the slide mechanism. The position sensor can be configured to directly detect the current axial position of the slide mechanism by means of suitable sensing means, or to detect the current position or orientation of a component coupled to the slide mechanism by means of suitable sensing means. For example, the position sensor can be configured to detect, by means of suitable sensing means, in which of several locking positions defined by a locking device the slide mechanism is locked.The position sensor can, for example, also be configured to detect the position of a guide element translationally coupled to the slide mechanism within a guide track using suitable sensing means. The position sensor is configured, for example, to output an electrical signal to a control unit of the gear selector, indicating the current position of the slide mechanism or from which the current position of the slide mechanism can be derived.

[0013] The gear selector device according to the invention for selecting gears of a motor vehicle transmission further comprises a locking device by which axial displacement of the sliding device, and thus the leftward and rightward movement of the selector lever, can be selectively mechanically blocked and released. The rotation of the shaft, or the forward and reverse movement of the selector lever, is not blocked by the locking device. Consequently, the locking device allows for a simple switch between an automatic operating mode with a single forward-reverse shift gate, in which the known automatic gears (D, N, R, ...) are selected by forward or reverse movement of the selector lever, by blocking / releasing the sliding device.) can be selected, and an H-shift operating mode with several adjacent forward-reverse shift gates, in which individual gears of the vehicle transmission indicating driving stages can be selected by forward and reverse movement as well as left and right movement of the selector lever.

[0014] The combination of shaft, slider device, selector lever and locking device according to the invention thus enables the realization of a simply constructed gear selector for selecting gears of a motor vehicle transmission, which is designed to be operated in both an automatic operating mode and an H-shift operating mode.

[0015] In a preferred embodiment of the gear selector according to the invention, the sliding device comprises a sliding element arranged axially displaceably on the shaft, which is connected to the shaft in a rotationally fixed manner, for example by means of a toothed connection or another type of tangential positive locking. The selector lever is articulated to the sliding element such that, during a forward or backward movement of the selector lever, the sliding element and thereby the shaft, which is rotationally fixed to the sliding element, are rotated, and that during a left or right movement of the selector lever, the sliding element is displaced axially relative to the shaft. This enables the realization of a relatively compact gear selector. Preferably, the sliding element is mounted displaceably on the shaft, i.e., held by the shaft.However, it is also conceivable that the sliding element is held by a separate guide, for example, formed by a housing. Preferably, the sliding element is manufactured in one piece.

[0016] In an alternative embodiment of the gear selector according to the invention, the shaft is designed to be axially displaceable, the sliding device comprises the axially displaceable shaft or is formed by the axially displaceable shaft, and the selector lever is articulated to the shaft such that the shaft is rotated during a forward or backward movement of the selector lever, and the shaft is axially displaced during a left or right movement of the selector lever. This enables the realization of a gear selector consisting of relatively few individual parts, since no separate sliding element is required.

[0017] Preferably, the gear selector according to the invention comprises a locking device for locking the slider assembly in at least one locking position. Preferably, the locking device is configured to lock the slider assembly in several different locking positions. The locking device is preferably designed such that the lock releases automatically when the selector lever is pressed to the left or right with a certain force. Thus, the locking device is preferably not intended to permanently fix the slider assembly in a locking position, but rather to create only noticeable resistance against moving the slider assembly out of a locking position.

[0018] Preferably, the locking device comprises at least one receptacle arranged on a cylindrical surface of the shaft and an engagement element radially biased against the shaft, wherein the engagement element is configured to engage in the at least one receptacle in order to lock the slide device in a locking position. Preferably, the locking device comprises several receptacles arranged at different axial positions on the shaft in order to define multiple locking positions. Preferably, the engagement element is a ball that is pressed against the shaft by a spring element. In the simplest case, the at least one receptacle is formed by at least one recess formed in the cylindrical surface of the shaft. However, the at least one receptacle can also be formed by at least one separate receiving element arranged on the shaft.The at least one receptacle is preferably designed as a groove extending in the circumferential direction of the shaft in order to allow the shaft to rotate as freely as possible when the slide device is in a locking position.

[0019] In principle, the locking device can be configured in any suitable way to selectively block or release the axial movement of the slide mechanism. However, in a preferred embodiment of the gear selector according to the invention, the at least one receptacle of the locking device is formed by at least one receiving element arranged radially displaceably on the shaft, and the locking device comprises a locking mechanism by which the at least one receiving element can be pressed against the engagement element to block the locking device and thus to block the axial movement of the slide mechanism. To release the locking device and thus to release the axial movement of the slide mechanism, the pressure of the at least one receiving element against the engagement element can be released.

[0020] In a preferred embodiment, the locking mechanism comprises an eccentric shaft rotatably arranged in the shaft, against which a radial inner surface of the at least one receiving element rests, so that the at least one receiving element can be easily moved radially by rotating the eccentric shaft in order to selectively press the receiving element against the engagement element either to lock the locking device and thus to block the axial displacement of the slide device, or to release the locking device and thus to release the axial displacement of the slide device.

[0021] In an alternative preferred embodiment, the locking mechanism comprises an axially displaceable push rod having at least one flank, typically a number of flanks corresponding to the number of receiving elements, against which a radial inner surface of the at least one receiving element rests. In this embodiment, the at least one receiving element can be easily moved radially by axially displacing the push rod in order to selectively press the receiving element against the engagement element, either to lock the locking device and thus block the axial displacement of the slide device, or to release the locking device and thus allow the axial displacement of the slide device.

[0022] In an alternative preferred embodiment, the locking device can also comprise a guide track and a guide element, for example a pin-shaped one, which is positively guided in the guide track and is coupled translationally, but preferably not rotationally, to the slide device, for example via a connecting rod or linkage. The guide track has at least one locking position in which axial movement of the guide element by the guide track or by opposing guide surfaces of the guide track is blocked, so that in the locking position of the guide track axial displacement of the slide device by the locking device is blocked.The guide cam further comprises at least one release position in which axial movement of the guide element through the guide cam is permitted, meaning the guide element can move axially within the guide cam, and in the locking position of the guide cam, axial displacement of the slide device by the locking device is permitted. The guide cam is designed and arranged such that the at least one locking position and the at least one release position can be set by moving the guide cam relative to the guide element, for example, by sliding and / or rotating the guide cam relative to the guide element.In the simplest case, the guide track can be T-shaped, with one of its two branches arranged parallel to the axial direction of the shaft and the other perpendicular to it. When the guide element is located within the branch running perpendicular to the shaft's axial direction, its axial movement is blocked. When the guide element is at the intersection of the two branches, it can be moved in both axial directions within the branch running parallel to the shaft's axial direction. Therefore, by moving the guide track perpendicular to the shaft's axial direction, either the locked position (guide element within the transverse branch) or the unlocked position (guide element at the intersection of the two branches) can be selected.This enables the realization of a relatively simple and robust locking device. Through suitable design and movement of the guide cam, several different operating modes, and in particular an H-shift operating mode modeled on a conventional (mechanical) H-shift, can be easily implemented. It is clear to a person skilled in the art how the guide cam must be specifically designed and moved to realize the desired shift patterns, i.e., the desired movement patterns for the selector lever.

[0023] In a preferred embodiment, the guide cam is formed by a sliding element that is displaceable relative to the guide element, so that the at least one locking position and the at least one release position can be easily set by sliding the guide cam. This enables the realization of a relatively simple and robust locking device. The sliding element is designed to be displaceable at least transversely to the axial direction of the shaft, but can also be designed to be displaceable parallel to the axial direction of the shaft to realize more complex switching schemes or operating concepts.

[0024] In an alternative preferred embodiment, the guide cam is formed by a rotatable roller element, so that the at least one locking position and the at least one release position can be easily set by rotating the guide cam. This enables the realization of a relatively simple and robust locking device. Preferably, the roller element is arranged coaxially to the shaft; thus, preferably, one axis of rotation of the roller element corresponds to one axis of rotation of the shaft. The roller element does not necessarily have to enclose the shaft but can also be arranged axially adjacent to it. Furthermore, the roller element does not necessarily have to have a circular or annular cross-section but can, for example, also have a circular segment or annular segment cross-section.The roller element can, for example, be designed similarly to a shift drum used in motorcycles for shifting a sequential gearbox. To implement more complex shift patterns or operating concepts, it is also conceivable that the roller element could be additionally movable.

[0025] Preferably, the guide track has a first release position in which movement of the guide element is permitted in both axial directions, and at least one further release position in which movement of the guide element is permitted in only one of the two axial directions. The first release position serves to implement an H-pattern operating mode in which the selector lever is moved both to the left and to the right from a neutral position to select the gears. The further release position serves to enable a single additional shift gate, for example, to implement a sequential shift operating mode in which individual gear-defining gears can be sequentially shifted through by moving the selector lever forward and backward.

[0026] In principle, the guide cam can be moved in any way, for example purely mechanically via a suitably designed manual actuation mechanism. Preferably, however, the locking device includes an actuator, preferably an electric motor, for the automated movement of the guide cam, so that the movement of the guide cam can be controlled by a suitably designed control unit. This enables the implementation of particularly complex operating modes, since, for example, a locking position can be automatically set by the actuator after a left or right movement of the selector lever.Furthermore, it is also conceivable that by moving the guide cam using the actuator, the guide element and thus also the selector lever can be moved automatically, for example to move the selector lever automatically into a neutral position or into a defined gear selection position of an H-shift operating mode and / or to create as much authentic a shifting feel as possible as part of a force feedback system, for example by imitating the shift forces and stops of a mechanical H-shift and / or by providing feedback from the physical properties of an installed automatic or dual-clutch transmission.

[0027] In a preferred embodiment, the gear selector according to the invention comprises an electric motor, for example a so-called servo motor or stepper motor, whose driven motor rotor is directly or via a gearbox rotaryally coupled to the shaft, so that the shaft can be subjected to a torque by the electric motor, wherein the torque can, in principle, be either a driving torque or a braking torque. This enables automated movement of the shaft and thus of the selector lever, for example, to automatically move the selector lever to a neutral position or a gear selection position. Furthermore, it is also conceivable to use the electric motor as part of a force feedback system to generate the most authentic shifting feel possible by selectively driving and braking the shaft.In principle, it is also conceivable that instead of the electric motor, a different type of electromechanical actuator is used to apply the torque to the shaft, for example a magnetic / eddy current force-generating actuator or a magnetorheological actuator.

[0028] Preferably, the electric motor includes a rotation angle sensor or a position sensor for detecting the rotation angle or position of the motor rotor. Since the motor rotor is rotationally coupled to the shaft, the rotation angle of the shaft can be directly derived from the rotation angle of the motor rotor, so that the rotation angle sensor or the position sensor of the electric motor can also be used as the rotation angle sensor of the gear selector. In a preferred embodiment, the rotation angle sensor of the gear selector is therefore integrated into the electric motor.

[0029] Preferably, the gear selector according to the invention comprises a spring arrangement configured such that the slider is moved in both axial directions against the spring force of a spring element, so that the slider, and thus the selector lever, is biased into a central neutral position by the spring arrangement. Preferably, the spring arrangement comprises at least two spring elements arranged on opposite axial sides of the slider. A similar effect could also be achieved by a suitably designed detent or a suitably designed release contour.

[0030] An embodiment of the present invention is described below with reference to the accompanying figures. These show: Fig. 1 a schematic diagram of a gear selection device according to the invention for selecting gears of a motor vehicle transmission, Fig. 2 a schematic diagram of a locking device for the gear selector Fig. 1, Fig. 3 a schematic diagram of an alternative gear selection device according to the invention for selecting gears of a motor vehicle transmission, Fig. 4 an alternative guide cam element for the gear selector Fig. 1 or off Fig. 3, Fig. 5 a schematic diagram of an alternative locking device for the gear selector Fig. 1 or off Fig. 3, and Fig. 6 a schematic diagram of an alternative locking mechanism for the locking device made of Fig. 5.

[0031] Fig. Figure 1 shows a gear selection device 100 according to the invention for selecting gears of a motor vehicle transmission.

[0032] The gear selector 100 comprises a rotatable shaft 1 with several receptacles 1.1, each formed by a recess in a cylindrical surface 1.2 of the shaft 1.

[0033] The gear selector 100 further comprises a slider device 2 which is arranged axially displaceable on the shaft 1 with respect to the shaft 1.

[0034] The sliding device 2 comprises an annular sliding element 2.1 that surrounds the shaft 1 and is held axially displaceable along the shaft 1.

[0035] The sliding element 2.1 is coupled to the shaft 1 in a rotationally fixed manner via a toothing formed on an inner circumferential surface of the sliding element 2.1 or another type of tangential positive locking.

[0036] The sliding device 2 comprises an engagement element 2.3 designed as a ball, which is arranged to be radially displaceable in a recess 2.1.1 of the sliding element 2.1 and is preloaded against the shaft 1 by means of a spring element 2.4.

[0037] The engagement element 2.3 and the receptacles 1.1 arranged on the shaft 1 form a locking device 3 for locking the slide device 2 in several locking positions defined by the receptacles 1.1 arranged on the shaft 1, wherein the engagement element 2.3 is designed as shown in Fig. 2 shown, in the locking positions to engage in one of the receptacles 1.1 arranged on the shaft 1.

[0038] The gear selector 100 further comprises a selector lever 4 which is articulated to the slider element 2.1 in such a way that, in the event of a forward movement of the selector lever 4, i.e. a movement of the selector lever 4 in a forward direction V, or in the event of a backward movement of the selector lever 4, i.e. a movement of the selector lever 4 in a backward direction R, the slider element 2.1 and consequently also the shaft 1 are rotated, and that in the event of a leftward movement of the selector lever 4, i.e. a movement of the selector lever 4 in a leftward direction Li, or in the event of a rightward movement of the selector lever 4, i.e. a movement of the selector lever 4 in a rightward direction Re, the slider device 2 is axially displaced with respect to the shaft 1.

[0039] The gear selector 100 further comprises an electric motor 5, which is arranged at one end of the shaft 1, and whose driven motor rotor 5.1 is connected to the shaft 1 in a rotationally fixed manner.

[0040] The electric motor 5 includes a rotation angle sensor 5.2, which is configured to detect a current rotation angle of the motor rotor 5.1 and thus also a current rotation angle of the shaft 1 which is coupled to the motor rotor 5.1 in a rotationally fixed manner.

[0041] The gear selection device 100 further includes a position sensor 6 which is configured to detect a current axial position of the slide device 2.

[0042] The gear selection device 100 further comprises a blocking device 7 by which the axial displacement of the slide device 2 can be selectively mechanically blocked and released.

[0043] The blocking device 7 comprises a guide cam element 7.1, which is designed either as a sliding element transverse to the shaft 1 or as a rotatable roller element arranged coaxially to the shaft 1.

[0044] The guide cam element 7.1 forms a guide cam 7.2 in which a pin-shaped guide element 7.4 is positively guided and is coupled translationally but not rotationally to the slide element 2.1 of the slide device 2 via a connecting rod 7.3.

[0045] The control scheme 7.2 has a blocking position 7.5, a first release position 7.6, a second release position 7.7 and a third release position 7.8, which are in Fig. 1 are represented by the respective position of the guide element 7.4 within the guide backdrop 7.2.

[0046] In the blocking position 7.5, an axial movement of the guide element 7.4, i.e., a movement of the guide element 7.4 in a first axial direction A1 as well as in a second axial direction A2, is blocked by the guide cam 7.2.

[0047] In the first release position 7.6, axial movement of the guide element 7.4 in both axial directions A1, A2 is permitted; in the second release position 7.7, axial movement of the guide element 7.4 is permitted only in the first axial direction A1; and in the third release position 7.8, axial movement of the guide element 7.4 is permitted only in the second axial direction A2.

[0048] The locking position 7.5 and the three release positions 7.6 - 7.8 can be set by moving the guide cam element 7.1 and thus the guide cam 7.2, whereby a guide cam element 7.1 designed as a push element is moved transversely to the shaft 1 to set the locking position 7.5 and the three release positions 7.6 - 7.8 and a guide cam element 7.1 designed as a roller element is rotated relative to the shaft 1 to set the locking position 7.5 and the three release positions 7.6 - 7.8.

[0049] The blocking device 7 further comprises an actuator 7.9 for the automated movement of the guide cam element 7.1 and thus of the guide cam 7.2.

[0050] The gear selector 100 further comprises a spring arrangement 8 with a first spring element 8.1, which is arranged between the slider device 2 and the electric motor 5, and with a second spring element 8.2, which is arranged between the slider device 2 and the guide cam element 7.1.

[0051] The sliding device 2 is therefore moved in the first axial direction A1 against the spring force of the first spring element 8.1 and in the second axial direction A2 against the spring force of the second spring element 8.2.

[0052] Fig. Figure 3 shows an alternative gear selector 100* according to the invention for selecting gears of a motor vehicle transmission, wherein for features that are identical or similar to those known from the gear selector 100, the corresponding reference numerals from Fig. 1 and Fig. 2 can be used.

[0053] The gear selector 100* differs from the gear selector 100 essentially in that the shaft 1 is designed to be axially displaceable and the slider device 2 is essentially formed by the axially displaceable shaft 1, and that consequently, the gear selector 100* does not have an axially displaceable slider element 2.1.

[0054] In the gear selector 100*, the position sensor 6 is configured to detect the current axial position of the shaft 1, i.e., the slider device 2, and the guide element 7.4, which is positively guided in the guide cam 7.2, is coupled translationally but not rotationally to the shaft 1.

[0055] Furthermore, in the gear selector 100*, the spring arrangement is designed such that the slider device 2 formed by the shaft 1 is moved in the first axial direction A1 against the spring force of the first spring element and in the second axial direction A2 against the spring force of the second spring element (not shown).

[0056] Furthermore, in the gear selector 100*, the locking device 3 comprises a fixed part 3.1 with a recess 3.1.1 in which an engagement element 3.2 designed as a ball is arranged to be radially displaceable and is preloaded against the shaft 1 by means of a spring element 3.3, so that the engagement element 3.2 engages in each of the receptacles 1.1 arranged on the shaft 1 in the locking positions.

[0057] Fig. Figure 4 shows an alternative guide cam element 7.1 * for the gear selector 100 or for the gear selector 100*, wherein for features known to be identical or similar to the guide cam element 7.1 the corresponding reference numerals from Fig. 1 to Fig. 3 can be used.

[0058] The guide cam 7.2 of the guide cam element 7.1* has a central blocking position 7.10, a first lateral blocking position 7.11 and a second lateral blocking position 7.12, wherein the guide element 7.4, which is positively guided in the guide cam 7.2 and thus the slide device, is blocked at different axial positions by the three blocking positions 7.10, 7.11, 7.12.

[0059] The three locking positions 7.10, 7.11, 7.12 are connected to each other by diagonally running guide cam sections 7.13, which make it possible to reliably move the guide element 4 and thus the slide device 2 axially by moving the guide cam element 7.1*.

[0060] The guide cam 7.2 of the guide cam element 7.1* further has a first release position 7.14 and a second release position 7.15, in each of which axial movement of the guide element 7.4 in both axial directions A1, A2 is released.

[0061] Fig. Figure 5 shows an alternative locking device 7* for the gear selector 100 or for the gear selector 100*, wherein for features that are identical or similar to those of the locking device 7 the corresponding reference numerals are given. Fig. 1 to Fig. 4 can be used.

[0062] The blocking device 7* differs from the blocking device 7 essentially in that, instead of the guide cam 7.2 and the guide element 7.4, a blocking mechanism 7.16 is provided for blocking the locking device 3, wherein the blocking mechanism 7.16 is connected to the Fig. 2 shown locking device 3 of the gear selector 100 as well as with the in Fig. The locking device shown in section 3 can be used with the speed selector 100*, which is why the following and the following Fig. 5. For features of the locking device 3, the reference numerals of both versions of the locking device 3 shall be specified.

[0063] The locking device 3 comprises several receiving elements 3.4 arranged radially displaceable in the shaft 1, each of which has a recess 3.4.1 on its radial outer side, which forms a receiving 3.5 of the locking device 3.

[0064] The locking mechanism 7.16 comprises an eccentric shaft 7.16.1 rotatably arranged in the shaft 1, against which a radial inner surface of the receiving elements 3.4 rests, so that by rotating the eccentric shaft 7.16.1 the corresponding receiving element 3.4 can be pressed against the engagement element 2.3; 3.2 either to lock the locking device 3 and thus to block the axial displacement of the slide device 2, or to release the locking device 3 and thus to release the axial displacement of the slide device 2 by releasing the receiving element 3.4 against the engagement element 2.3; 3.2.

[0065] Fig. Figure 6 shows an alternative blocking mechanism 7.16* for the blocking device 7*, wherein for features that are identical or similar to those of the blocking mechanism 7.16, the corresponding reference numerals are given. Fig. 5 can be used.

[0066] The locking mechanism 7.16* differs from the locking mechanism 7.16 in that, instead of the eccentric shaft 7.16.1, an axially displaceable push rod 7.16.2 with a number of flanks 7.16.3 corresponding to the number of receiving elements 3.4 is provided, wherein the radial inner side of one of the receiving elements 3.4 rests against each of the flanks 7.16.3.

[0067] By axially displacing the push rod 7.16.2, the corresponding receiving element 3.4 can be pressed against the engagement element 2.3; 3.2 either to block the locking device 3 and thus to block the axial displacement of the slide device 2, or the pressing of the receiving element 3.4 against the engagement element 2.3; 3.2 can be released to release the locking device 3 and thus to release the axial displacement of the slide device 2. Reference symbol list 100; 100* Gear selector 1 wave 1.1 Recordings 1.2 Lateral surface area 2 sliding device 2.1 Sliding element 2.1.1 Recess 2.3 Intervention element 2.4 Spring element 3 Locking device 3.1 fixed part 3.1.1 Recess 3.2 Intervention element 3.3 Spring element 3.4 Recording elements 3.4.1 Recess 3.5 Recording 4 selector levers 5 electric motor 5.1 Motor rotor 5.2 Rotation angle sensor 6 Position sensor 7; 7* locking device 7.1; 7.1* Guide backdrop element 7.2 Leadership environment 7.3 Stabilizer link 7.4 Guide element 7.5 Blocking position 7.6 First release position 7.7 Second release position 7.8 Third release position 7.9 Actuator 7.10 central blocking position 7.11 First lateral locking position 7.12 second lateral locking position 7.13 diagonally running guide scenery sections 7.14 first release position 7.15 second release position 7.16; 7.16* Blocking mechanism 7.16.1 Eccentric shaft 7.16.2 Push rod 7.16.3 Flanks 8 Spring arrangement 8.1 First spring element 8.2 second spring element A1 first axial direction A2 second axial direction Left-hand direction R Reverse direction Right direction V Forward direction QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2017 114 591 A1

[0003]

Claims

[1] Gear selector device (100; 100*) for selecting gears of a motor vehicle transmission, comprising: a wave (1), an axially displaceable sliding device (2), a selector lever (4) which is coupled to the shaft (1) and the slide device (2) in such a way that when the selector lever (4) is moved forward or backward, the shaft (1) is rotated and when the selector lever (4) is moved to the left or to the right, the slide device (2) is moved axially. a rotation angle sensor (5.1) for detecting a rotation angle of the shaft (1), a position sensor (6) for detecting an axial position of the slide device (2), and a blocking device (7) by which axial displacement of the slide device (2) can be selectively mechanically blocked and released. [2] Gear selector device (100) according to claim 1, wherein: the sliding device (2) comprises a sliding element (2.1) arranged axially displaceable on the shaft (1) with respect to the shaft (1), which is connected to the shaft (1) in a rotationally fixed manner, and the selector lever (4) is articulated to the slider element (2.1). [3] Gear selector device (100*) according to claim 1, wherein: the shaft (1) is arranged to be axially displaceable, the sliding device (2) comprises the shaft (1), and the selector lever (4) is articulated to the shaft (1). [4] Gear selector device (100; 100*) according to one of the preceding claims, further comprising a locking device (3) for locking the slider device (2) in at least one locking position. [5] Gear selector device (100; 100*) according to claim 4, wherein the locking device (3) comprises at least one receptacle (1.1; 3.5) arranged on a cylindrical surface of the shaft (1) and an engagement element (2.3; 3.2) radially preloaded against the shaft (1), wherein the engagement element (2.3; 3.2) is designed to engage into the at least one receptacle (1.1; 3.5). [6] Gear selector device (100; 100*) according to claim 4 or 5, wherein the at least one receptacle (3.5) is formed by at least one radially displaceable receiving element (3.4), and wherein the locking device (7*) comprises a locking mechanism (7.16) by which the at least one receiving element (3.4) can be pressed against the engagement element (2.3; 3.2) to lock the locking device (3). [7] Gear selector device (100; 100*) according to claim 6, wherein the locking mechanism (7.16) comprises an eccentric shaft (7.16.1) rotatably arranged in the shaft (1), against which a radial inner surface of the at least one receiving element (3.4) rests. [8] Gear selector device (100; 100*) according to claim 6, wherein the locking mechanism (7.16*) comprises an axially displaceable push rod (7.16.2) having at least one flank (7.16.3) against which a radial inner surface of the at least one receiving element (3.4) rests. [9] Gear selector device (100; 100*) according to one of claims 1 to 5, wherein the locking device (7) comprises a guide cam (7.2) and a guide element (7.4) positively guided in the guide cam (7.2), wherein the guide element (7.4) is translationally coupled to the slide device (2), wherein the guide cam (7.2) has at least one locking position (7.5) in which axial movement of the guide element (7.4) through the guide cam (7.2) is blocked, wherein the guide cam (7.2) has at least one release position (7.6, 7.7, 7.8) in which axial movement of the guide element (7.4) through the guide cam (7.2) is released, and wherein the at least one locking position (7.5) and the at least one release position (7.6, 7.7, 7.8) are activated by moving the guide cam (7.2) can be set. [10] Gear selector device (100; 100*) according to claim 9, wherein the guide cam (7.2) is formed by a movable push element (7.1), and wherein the at least one locking position (7.5) and the at least one release position (7.6, 7.7, 7.8) can be set by moving the guide cam (7.2). [11] Gear selector device (100; 100*) according to claim 9, wherein the guide cam (7.2) is formed by a rotatable roller element (7.1), and wherein the at least one locking position (7.5) and the at least one release position (7.6, 7.7, 7.8) can be set by rotating the guide cam (7.2). [12] Gear selector device (100; 100*) according to one of claims 9 to 11, wherein a first release position (7.6) is provided in which movement of the guide element (7.4) in both axial directions (A1, A2) is allowed, and a further release position (7.7, 7.8) is provided in which movement of the guide element (7.4) is allowed only in one of the two axial directions (A1, A2). [13] Gear selector device (100; 100*) according to one of claims 9 to 12, wherein the locking device (7) comprises an actuator (7.9) for automated movement of the guide cam (7.2). [14] Gear selector device (100; 100*) according to one of the preceding claims, further comprising an electric motor (5) which is rotatorily coupled to the shaft (1). [15] Gear selector device (100; 100*) according to claim 14, wherein the rotation angle sensor (5.1) is integrated into the electric motor (5). [16] Gear selector device (100; 100*) according to one of the preceding claims, further comprising a spring arrangement (8) which is designed such that the slider device (2) is moved in both axial directions (A1, A2) against the spring force of a spring element (8.1, 8.2).

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