Selector lever reset device for a vehicle gearbox, and method and device for operating such a selector lever reset device

Abstract

The present disclosure provides a selector lever resetting device for a vehicle transmission. The selector lever resetting device may include a selector lever configured to select a gear position of the vehicle transmission and a lever guide device, the lever guide device having a first sliding element and a locking slide. The first sliding element may be adjustable along a first sliding axis and has a latching contour. The selector lever may be coupled to the first sliding element and configured to be moved along the sliding axis between a latching position and an operating position. The locking slide may be adjustable along a second sliding axis to move at least between a latching position and a release position.

Claims

1. A selector lever resetting device for a vehicle transmission, the selector lever resetting device comprising: a selector lever configured to select a gear position of the vehicle transmission; a lever guide device, the lever guide device having a first sliding element and a locking slide, where the first sliding element is adjustable along a first sliding axis and has a latching contour, where the selector lever is coupled to the first sliding element and configured to be moved along the first sliding axis between a latching position, and an operating position, where the locking slide is adjustable along a second sliding axis to move at least between a locking position and a release position, where the locking slide includes a locking element, the locking element being engaged with the latching contour when the selector lever is in the operating position and the locking slide is in the locking position, and the locking element being released from the latching contour when the locking slide is in the release position, and where the locking slide includes a block element that is separate from the locking element, the block element extending in a direction parallel to the first sliding axis along a top surface of the locking slide, wherein the block element is positioned to prevent movement of the selector lever along the first sliding axis when the locking slide is in a blocking position; and a gear shifting gate with a first recess associated with the operating position and a second recess associated with the latching position, wherein the first recess has a depth greater than the second recess, and wherein the first recess and the second recess are connected by an inclined exchange lane.

2. The selector lever resetting device of claim 1, further comprising a spring element configured to press the locking element against the latching contour.

3. The selector lever resetting device of claim 1, further comprising a drive unit configured to move the locking slide between the locking position and the release position.

4. The selector lever resetting device of claim 3, further comprising a gearbox coupled to the drive unit, where the gearbox is configured to transmit a rotary motion generated by the drive unit into a linear movement of the locking slide.

5. The selector lever resetting device of claim 1, where a lever end of the select lever can be switched between the first recess and the second recess, and further comprising a preload device configured to apply a preload force to the lever end of the selector lever to move the selector lever.

6. The selector lever resetting device of claim 5, wherein the preload device includes a spring such that the lever end to have a tendency to move from the second recess, through the inclined exchange lane, and to the first recess absent an external force.

7. The selector lever resetting device of claim 5, where the selector lever includes a lever recess, where a latching body of the preload device is located within the lever recess, and where the preload force applied to the lever end of the selector lever is greater when the selector lever is in the first recess than when the selector lever is in the second recess.

8. The selector lever resetting device of claim 1, where the first recess is an automatic gate for automatic switching of the vehicle transmission and the second recess is a manual gate for manual switching of the vehicle transmission.

9. The selector lever resetting device of claim 1, where the blocking element prevents a locking body from entering the second recess when the locking slide is in the blocking position.

10. The selector lever resetting device of claim 1, where the selector lever is received by a recess of the first sliding element.

11. The selector lever resetting device of claim 1, further comprising a second sliding element perpendicularly movable with respect to the first sliding element, where the second sliding element is movable along a third sliding axis parallel to the second slide axis, and wherein the second sliding element is configured to allow movement of the select lever between a plurality of predefined lever positions.

12. A selector lever resetting device for a vehicle transmission, the selector lever resetting device comprising: a selector lever configured to select a gear position of the vehicle transmission; a lever guide device having a first sliding element and a locking slide, where the first sliding element is adjustable along a first sliding axis and has a latching contour, where the selector lever is coupled to the first sliding element and is movable along the first sliding axis between a first position and a second position, where the locking slide is adjustable along a second sliding axis to move at least between a locking position and a release position, where the locking slide includes a locking element, the locking element configured to engage with the latching contour when the locking slide is in the locking position and when the first sliding element is in at least one of the first position and the second position, where the locking slide includes a block element that is separate from the locking element, the block element extending in a direction parallel to the first sliding axis along a top surface of the locking slide, wherein the block element is positioned to prevent movement of the selector lever along the first sliding axis when the locking slide is in a blocking position, and where the first sliding axis is perpendicular to the second sliding axis; and a gear shifting gate with a first recess associated with the first position and a second recess associated with the second position, wherein the first recess has a depth greater than the second recess, and wherein the first recess and the second recess are connected by an inclined exchange lane.

13. The selector lever resetting device of claim 12, further comprising a spring element configured to press the locking element against the latching contour.

14. The selector lever resetting device of claim 12, further comprising a drive unit configured to move the locking slide between the locking position and the release position.

15. The selector lever resetting device of claim 14, further comprising a gearbox coupled to the drive unit, where the gearbox is configured to transmit a rotary motion generated by the drive unit into a linear movement of the locking slide.

16. The selector lever resetting device of claim 12, where a lever end of the select lever can be switched between the first recess and the second recess, and further comprising a preload device configured to apply a preload force to the lever end of the selector lever such that the lever end of the selector lever has a tendency to move towards the first recess.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present embodiments are explained as an example on the basis of the attached drawings. They show:

(2) FIG. 1 is a schematic cross section presentation of a selector lever resetting device in accordance with one embodiment of the present disclosure;

(3) FIGS. 2a, 2a, 2c, 2d are schematic three dimensional presentations of selector lever resetting device with blocked manual lane in accordance with one embodiment of the present disclosure;

(4) FIGS. 3a, 3b, 3c, 3d, 3e are schematic three dimensional presentations of the selector lever resetting device with released manual lane in accordance with one embodiment of the present disclosure;

(5) FIG. 4 is a schematic three-dimensional cross-section presentation of a selector lever resetting device with released manual lane in accordance with one embodiment of the present disclosure;

(6) FIGS. 5a, 5b are schematic three-dimensional cross-section presentations of a selector lever resetting device with locked selector lever in accordance with one embodiment of the present disclosure;

(7) FIGS. 6a, 6b are schematic three-dimensional cross-section presentations of a selector lever resetting device with released latching contour in accordance with one embodiment of the present disclosure;

(8) FIGS. 7a, 7b are schematic three-dimensional cross-section presentations of a selector lever resetting device with released latching contour in accordance with one embodiment of the present disclosure;

(9) FIG. 8 is a schematic three-dimensional presentation of a selector lever resetting device with a casing in accordance with one embodiment of the present disclosure;

(10) FIGS. 9a, 9b, 9c, 9d, 9e, 9f are schematic three dimensional presentations of different installation states of a selector lever resetting device with a casing in accordance with one embodiment of the present disclosure;

(11) FIG. 10 is a flow chart of a process to operate a selector lever resetting device in accordance with one embodiment of the present disclosure; and

(12) FIG. 11 is a block diagram of a device to perform a procedure in accordance with one embodiment of the present disclosure.

DETAILED DESCRIPTION

(13) In the following description of preferred embodiments of the present disclosure, the same or similar reference signs are used for the elements shown in the various figures and similar-looking elements, in which a repeated description of these elements is removed.

(14) FIG. 1 shows a schematic cross section presentation of a selector lever resetting device 100 in accordance with one embodiment of the present disclosure. The selector lever resetting device 100 includes a selector lever 105 to select a gear position of vehicle gearing (not shown here) and a lever guide device 110. The lever guide device 110 includes a sliding element 115 and a locking slide 120. The sliding element 115 is arranged movable along a sliding axis 125 in lever effect device 110. The sliding element 115 is plate-like shaped and has a recess, through which the selector lever 105 is carried out to mechanically couple the selector lever 105 with the sliding element 115. The selector lever 105 is formed to be moved using the sliding element 115 between a latching position 130 and an operating position 135 along the sliding axis 125. As an example, the selector lever 105 is arranged in the latching position 130 at right angles to the sliding element 115 and arranged in the operating position 135 at an acute angle to the sliding element 115. In FIG. 1 the selector lever 105 is shown in the operating position 135.

(15) The locking slide 120 is arranged according to this embodiment in a marginal area of the lever guide device 110 along the slide axle 140 deviating from the sliding axis 125 movable between a latching position and a release position on the sliding element 115. In FIG. 1 the slide axle 140 and the sliding axis 125 are exemplarily running perpendicular to each other, where the slide axle 140 runs perpendicular to a consideration level and thus is presented as a point. The sliding element 115 is formed to move the selector lever 105 in the operating position 135 so in the direction of the locking slide 120, that a marginal area of the sliding element 115 is covered by the locking slide 120.

(16) The slide element 115 includes a locking contour 145, also called as rastering or rastering contour, which is formed as an elevation in the marginal area of the sliding element 115 according to this embodiment. The locking slide 120 comprises a latching element 150, which is latched in the latching position of the locking slide 120 that is shown in FIG. 1 with the latching contour 145. The latching element 150 can also be referred to as a rastering element.

(17) According to this embodiment the latching element 150 is performed as a latch nose, which is formed to be pressed while moving the sliding element 115 in the direction of the lock slide 120, i.e. When you move the selector lever 105 in the operating position 135, through the elevation of the latching contour 145, so that the selector lever 105 is fixed in the operating position 135.

(18) In FIG. 1 the selector lever resetting device 100 is shown with an optional additional sliding element 155, where the other sliding element 155 is arranged along another sliding axis moveable in lever guide device 110. According to this embodiment, another sliding axis matches with the slide axle 140, so that the sliding element 115 and the other sliding element 155 are perpendicularly moveable to each other. Also the sliding element 115, as shown in FIG. 1, can be arranged movable in the other sliding element 155. The other sliding element 155 thus fulfills the functions of a framework to guide the sliding element 115 along the sliding axis 125. The other sliding element 155 can also be referred as longitudinal slide and the sliding element 115 also as cross section slide accordingly. The other slide element 155 can be arranged in turn moveable in a direction of a track or latching device not shown here, which can be some part of a casing of selector lever resetting device 100. Thus, the selector lever 105 is formed, to 155 to be moved along two sliding axis 125, 140 by means of the sliding elements 115. For example, the selector lever 105 is movable along the other sliding axis 140 between majorities of the predefined lever position.

(19) The locking slide 120 can be arranged adjacent to an edge of the other slide element 155 running parallel to the other sliding axis 140 or to the slide axle 140. The edge can serve as a guide track to guide the locking slide 120 between the latching position and the position of the release.

(20) The selector lever resetting device 100 additionally includes a gear shifter 160. The gear shifter 160 is designed as a shallow element with a scene recess 165. A floor space of the scene recess 165 has a first recess 170 and a second recess 175. First recess 170 is designed, for example, as automatic lane for the automatic shifting of the vehicle transmission and the second recess 175 as a manual lane for the manual shifting of the vehicle transmission. The recesses 170, 175 are thus forming a rastering for the selector lever 105. The manual lane can also be called tip lane. The recesses 170, 175 are interconnected via an exchange lane 180, in which the exchange lane 180 acts as an exchange area to change a position of lever between the first recess 170 and the second recess 175.

(21) As an example, the first recess 170 is run with a depth greater than the second recess 175. The exchange lane 180 thus has a tendency.

(22) The lever end 185 of the selector lever 105 is arranged movable between the first recess 170 and the second recess 175 in the gear shifter 160. The lever end 185 is arranged and formed in the second recess 175 in the operating position 135 to be moved in the first recess 170 when you move the selector lever 105 in the latching position 130 via the exchange lane 180. For example, the latching position 130 matches with a parking position of the vehicle transmission.

(23) According to this embodiment, the selector lever resetting device 100 is realized with an optional preload device 190. The preload device 190 includes an elongate locking body 195 and a preload element 196 for the preload of the latching body 195. The preload element 196 is implemented by way of example as a helical spring. The selector lever 105 is formed in the area of the lever end 185 with a lever recess 198, in which the latching body 195 is arranged moveable in the lever recess 198. By way of example, the latching body 195 in FIG. 1 is moveable along a longitudinal axle of the selector lever 105.

(24) According to this embodiment the latching body 195, which can be described as rastering element, is carried through by the preload element 196, where the preload element 196 is clamped in the selector lever 105, that an end portion of the latching body 195 is pressed by a preload force of the preload element 196 in the gear shifter 160. The end portion of the latching body 195 is jutting out into this pretensioned state of the selector lever 105 from the lever recess 198. The end portion of the latching body 195 thus forms the lever end 185 as moveable between the recess 170 and 175. The latching body 195 is formed to press the selector lever 105 in the release position of the locking slide 120 not shown here by the preload force of the actuating position 135 on a slope of the exchange lane 180 and back to its latching position 130. By the fact that the second recess 175 has a lower depth than the first recess of 170, the prestressing of the header element 196 in the operating position 135, in which the lever end 185 is arranged in the second recess 175, is greater than in the latching position 130, in which the lever end 185 is arranged in the first recess 170.

(25) The FIGS. 2a to 2d show schematic three dimensional presentations of a selector lever resetting device 100 with blocked manual lane 175 in accordance with one embodiment of the present disclosure. In contrast to FIG. 1 the lever end of selector lever 105 is arranged in the first recess, which is realized as automatic lane. The selector lever 105 is formed in and out to be moved between various lever settings in the automatic lane. As already described on the basis of FIG. 1, the second recess 175 is implemented as a manual lane accordingly.

(26) In addition the locking slide 120 has a block element 200. The block element 200 is implemented by way of example through a flat projection of a bottom plate of the locking slide 120, which extends the projection on a base of the locking slide 120. The blocking member 200 extends adjacent to a surface of the sliding element 115 and parallel to a main extension level of sliding element 115. Alternatively, the blocking member 200 may be formed as a pin or as another element with an appropriate geometrical shape.

(27) The locking slide 120 is arranged in the FIGS. 2a to 2d in a blocking position in contrast to FIG. 1, in which the selector lever 105 is blocked by the block element (or locking element) 200, that the selector lever 105 is locked up in the automatic gate, i.e. can be moved only along the automatic gate.

(28) The selector lever resetting device 100 shown in FIGS. 2a to 2d is also equipped with a drive unit 205, which is exemplified as an electric motor and is coupled mechanically with the locking slide 120 to the locking slide 120 along the slide axle 140 between the locking position to move the release position and here shown blocking position. In order to realize a most compact design of the selector lever resetting device 100, the drive unit 205 can be arranged on the blocking slide 120.

(29) FIG. 2a shows the selector lever 105 in the rest position 130, also referred to as X-position. The rest position 130 is for example centrally disposed between a first end and a second end of the automatic gate.

(30) FIG. 2b shows a rear view of the selector lever resetting device 100 shown in FIG. 2a.

(31) FIG. 2c shows the selector lever 105 in a first automatic position, also called the A-position. The end of the lever is arranged in the first end of the automatic gate 170, in the A-position.

(32) FIG. 2D shows the selector lever 105 in a second automatic position, also called a B-position. The end of the lever is arranged in the second end of the automatic gate 170 in the B-position.

(33) In contrast to the rest position 130, the selector lever 105 is arranged in the A- and the B-position each diagonally to the sliding element 115 or the gear shifter 160.

(34) FIGS. 3a to 3e show schematic three-dimensional representations of a selector lever resetting device 100 with released manual gate 175 in accordance with one embodiment of the present disclosure. In contrast to the FIGS. 2a to 2d, the locking slide 120 is shown in FIGS. 3a to 3e in the locking position. The blocking element is moved into a position in the locking position in which the lever path between the latching position and the operating position is released.

(35) The selector lever 105 is shown as in FIG. 2A in the latching position 130 in FIG. 3a. Here, the latching contour 145 is positioned adjacent to the selector lever 105 a facing edge of the locking slide 120.

(36) FIG. 3b shows the selector lever 105 in the operating position 135, also called as M position. The latching contour is covered by the locking slide 120 and locked with also not visible locking element. The selector lever 105 is arranged movable along the manual gate.

(37) FIG. 3c shows a consideration in FIG. 3b shown selector lever resetting device 100 with the deactivated block element 200.

(38) FIG. 3d displays the selector lever 105 in a first manual shift position, also called as Plus position, in which the selector lever 105 is arranged in a first end of the manual gate 175. For example, the vehicle transmission is designed to be switched when moving the selector lever 105 in the plus position in a higher gear.

(39) FIG. 3e shows the selector lever 105 of a second manual shift position, also called as minus position in which the selector lever 105 is arranged in a second end of the manual gate 175. For example, the vehicle transmission is designed to be switched while moving the select lever of 105 in the minus position in a lower gear.

(40) FIG. 4 shows a schematic three-dimensional cross-sectional representation of a selector lever resetting device 100 with shared manual gate 175 according to an embodiment of the present disclosure. In particular, a cutout view of the selector lever resetting device 100 shown in FIG. 3a is represented In FIG. 4. The lock slide 120 is shown with a guide channel 400 for guiding the locking element 150. As an example, the guide channel 400 runs perpendicular to the sliding element 115. There is a spring element 405 in the Guide Channel 400. The spring element 405 is connected between an end opposite the locking element 150 channel end of the guide channel 400 and the locking element 150 is clamped such that the locking member 150 is pressed against the edge region of the sliding element 115, in which the latching contour 145 is designed as an elevation. Thus, a slip resistant locking of the locking element 150 is made possible with the latching contour 145 in here not shown latching position of the locking slide.

(41) The selector lever resetting device 100 is realized also in FIG. 4 with a transmission gear 410, which extends as an example along the slide axle 140 in the locking slide 120. Here, a shaft of the drive unit 205 is rotationally fixed to the transmission gear 410, respectively. The transmission gear 410 is formed, for example as a spindle and serves to transmit a rotation of the shaft of the drive unit 205 in a linear movement of the locking slide 120 along the sliding axis 140.

(42) The FIGS. 5a and 5b show schematic representations of three-dimensional cross-section of selector lever resetting device 100 with front selector 105 in accordance with one embodiment of the present disclosure. A cut through that the selector lever resetting device 100 displayed in FIG. 3b is in case of FIG. 4. It is to realize that the locking element 150 is pressed over in the latching position of the locking slide 120 on the elevation of the latching contour 145, so that the locking element 150 is to be situated in contrast to FIG. 4 now on one of the selector lever 105 side facing of the elevation.

(43) FIG. 5b shows a rear view in FIG. 5a shown selector lever resetting device 100, while in the foreground of the locking slide 120 and selector lever 205 are presented, and is shown in the background of the selector lever 105.

(44) The FIGS. 6a and 6b show schematic representations of three-dimensional cross-section of selector lever resetting device 100 with shared locking contour 145 in accordance with one embodiment of the present disclosure. In contrast to the FIGS. 5a and 5b, the locking slide 120 is in the FIGS. 6a and 6b in the release position in which the locking element 150 along the sliding axis 140 is arranged laterally offset to the latching contour 145. Thus the latching contour is released and lifted the fixation of the select lever 105 in the actuating position 135.

(45) By the acting on the locking body 195 prestressing force of the header element 196, the selector lever 105 is now moved back on the switching gate 180 in the first recess 170, as shown in the following FIGS. 7a and 7b.

(46) The locking slide 120 with the integrated locking element 150 can be formed in accordance with an embodiment in response to a signal representing a position change of the vehicle transmission, for instance caused by the activation of an auto-P function, driven by the drive unit 205 of the locking position in to the release position.

(47) A rear view displayed in in FIG. 6a selector lever resetting device is shown in FIG. 6b. A perspective of the rear view displayed in the FIG. 6b corresponds to a perspective of the rear view shown in FIG. 5b.

(48) The FIGS. 7a and 7B schematic three-dimensional cross-sectional diagrams show a selector lever resetting device 100 with released latching contour 145 in accordance with one embodiment of the present disclosure. In contrast to the FIGS. 6a and 6B, the selector lever 105 in FIGS. 7a and 7B is located in the latching position 130.

(49) A rear view displayed in in FIG. 7a selector lever resetting device is shown in FIG. 7b. A perspective of the rear view displayed in the FIG. 7b corresponds to a perspective of the rear view shown in the FIGS. 5b and 6b

(50) According to one embodiment, is made possible without any additional actuator force by a superposition of different resting contours 145, 150, 170, 175, 185 and the activation of each required resting contours a provision of the selector lever 105 The actuator 205 serves merely to release a biased system. A significantly lower force is required, which has a positive effect on costs and acoustics. An optional use of the actuator 205 for an additional locking function brings an additional space and cost advantage.

(51) FIG. 8 shows a schematic three-dimensional representation of a selector lever resetting device 100 comprising a casing 800 according to an embodiment of the present disclosure. The selector lever resetting device 100 is enclosed by the casing 800. The casing 800 has, for example a two-part structure composed of a first casing half 805 and a second casing half 810. The casing halves 805, 810 are screwed together, for example. The selector lever 105 is performed through a casing recess of casing 800 812. A front page of the first case half 805 is with a front opening 815, which is locked by a lock plate 820.

(52) The FIGS. 9a to 9f show schematic three-dimensional representations of different installation states of a selector lever resetting device 100 with a case of 800 in accordance with one embodiment of the present disclosure. The selector lever resetting device 100 can be in the FIGS. 1 to 7b shown selector lever resetting device.

(53) FIG. 9A shows the casing 800 without locking plate. A first part of the selector lever resetting device 100 is visible through the front opening of 820. The first part of the selector lever resetting device 100 is arranged into a similarly shaped recess in the first case half of 805.

(54) FIG. 9b shows the casing 800 without the first casing half. Similar to the first half of the casing is realized with a recess in second case half of 810 which is shaped to receive a second part of the selector lever resetting device 100.

(55) FIG. 9c shows the selector lever resetting device 100 in accordance with the FIG. 9b, but without locking slide.

(56) FIG. 9d shows the first casing half 805 with therein contained first part of selector lever resetting device 100.

(57) FIG. 9e shows the selector lever resetting device 100 and the locking plate 820. The locking plate 820 is provided with a plate recess 905, in which the locking plate 820 overlooking one portion of the drive unit 205 are arranged as well as the locking plate 820 overlooking one portion of the locking plate 120. The plate recess 905 can be formed to lead the locking slide 120 along the slide axle.

(58) In addition, the selector lever resetting device 100 includes a circuit board of 910 with control electronics. The control electronics is connected to the drive unit 205 and configured to control the drive unit 205, for example, by using a gear position representing signal.

(59) FIG. 9f shows the selector lever resetting device 100 and the locking plate 820 in accordance with the FIG. 9e, however without the selector lever and the circuit board with the control electronics.

(60) FIG. 10 shows a flow chart of a process 1000 to run a selector lever resetting device in accordance with one embodiment of the present disclosure. The rest outline with the locking element due to a movement of the select lever from the initial position to the actuating position along a sliding axis is engaged in a step of 1005. Due to a movement of the locking slide of the locking position in the release position along a sliding axis different from the slide axle, the latching contour is now released in step 1010.

(61) According to one embodiment, a lever motion is generated by means of two latching contours and an actuator, for instance by means of an electric motor, but also by means of other actuators such as linear actuators, solenoids, piezo elements or muscle wires.

(62) FIG. 11 shows a block diagram of a device 1100 to perform a procedure in accordance with one embodiment of the present disclosure. The device 100 includes a reverse latch unit 1105 to the locking of the latching contour with the locking element due to a movement of the select lever from the initial position to the actuating position along a sliding axis, as well as a release unit 1110 to share the latching contour due to a movement of the locking slide from the locking position to the release position along a sliding axis different from the slide axle.

(63) The embodiments described and shown in the FIGS. are chosen only by way of example. Different examples of execution can be combined fully or in relation to individual characteristics. Also, an embodiment can be supplemented by features of a further embodiment.

(64) In addition, this procedure can be reviewed and executed in a language other than in the described order. Further, when an embodiment is described with a first feature and a second feature, it may so be read that the embodiment may have both the first feature and the second feature and in accordance with another embodiment has only one of the first feature and the second feature.

REFERENCE NUMERALS

(65) 100 selector lever resetting device 105 selector lever 110 lever guide equipment 115 sliding element 120 locking slide 125 sliding axis 130 latching position 135 actuating position 140 slide axle 145 latching contour 150 resting element 155 further sliding element 160 gear shifting gate 165 scene recess 170 first recess 175 second recess 180 change gate 185 end of the lever 190 preload device 195 locking body 196 preload elements 198 lever recess 200 blocking element 205 drive unit 400 guide channel 405 spring element 410 step-up gear unit 800 casing 805 first casing half 810 second 812 casing recess 815 front opening 820 locking plate 905 plate recess 910 circuit board with control electronics 1000 method of operating of a selector lever resetting device 1005 locking the latching contour with the latching element 1010 release of the latching contour 1100 device to perform a procedure to run a selector lever resetting device 1105 locking unit 1110 release unit