Device for locking an operating element of an automatic transmission of a vehicle, method for operating such a device and switching device for switching an automatic transmission of a vehicle

Patent metadata

Field	Value
Publication number	US-2016238128-A1
Application number	US-201415029888-A
Country	US
Kind code	A1
Filing date	Sep 17, 2014
Priority date	Oct 17, 2013
Publication date	Aug 18, 2016
Grant date	—

Abstract

A device for locking an operation element of an automatic transmission of a vehicle may comprise a rotationally mounted locking comb including a locking contour configured to be coupled with an operation element. The device may further comprise a locking element, where the locking element is configured to be arranged in a first position outside the locking contour to release the locking comb for a rotational movement to allow a shifting movement of the operation element. The locking element may be configured to be arranged in a second position in the locking contour to fix the locking comb for locking the operation element. The device may further comprise a rotationally mounted set ring with a control contour for guiding the locking element between the first position and the second position.

First claim

1 . A device for locking an operation element of an automatic transmission of a vehicle, the device comprising:
a rotationally mounted locking comb including a locking contour configured to be coupled with an operation element; a locking element, wherein the locking element is configured to be arranged in a first position outside the locking contour to release the locking comb for a rotational movement to allow a shifting movement of the operation element, and wherein the locking element is configured to be arranged in a second position in the locking contour to fix the locking comb for locking the operation element; and a rotationally mounted set ring with a control contour for guiding the locking element between the first position and the second position.

2 . The device of claim 1 , wherein the locking contour is formed by a recess in the locking comb, and wherein the recess corresponds to a contour of the locking element.

3 . The device of claim 1 , wherein the control contour is formed by a groove extending in the set ring, wherein the groove has a first groove section that extends closer to an outer contour than to an inner contour of the set ring, wherein the groove has a second groove section that draws closer to the set ring, wherein the first groove section is formed to guide the locking element in the first position, and wherein the second grove section is formed to guide the locking element from the first position to the second position.

4 . The device of claim 1 , wherein the locking element comprises a protrusion on a side facing the control contour, wherein the protrusion is formed to engage with the control contour for guiding the locking element.

5 . The device of claim 1 , wherein the locking comb is arranged between the set ring, wherein the operation element and the locking element is arranged radially relative to the locking comb and the set ring, and wherein the operation element is formed to be moved in radial direction relative to the locking comb and the set ring between the first position and the second position.

6 . The device of claim 1 , further comprising a locking pin with a first pin position to engage in the locking contour of the locking comb and a second pin position to release the locking comb for a rotational movement, wherein the locking comb includes a stop element and the rotationally mounted set ring includes a control cam and a nose, wherein the control cam is formed by a radial expansion of the set ring and is configured to move the locking pin from the first position to the second position, and wherein the nose is formed upon the radial expansion of the set ring to engage the stop element to turn the locking comb in order to shift the operation element to a parking position.

7 . The device of claim 6 , wherein the control contour of the set ring extends adjacent to the control cam.

8 . The device of claim 1 , wherein the device further comprises a coupling element which connects the set ring with an actuator and is configured to transmit a torque of the actuator to the set ring to generate the rotational movement of the set ring.

9 . (canceled)

10 . A method for operating a device for locking an operation element of an automatic transmission of a vehicle, wherein the device comprises:
a rotationally mounted locking comb configured to directly connect with the operation element with a locking contour; a locking element configured to be arranged in a first position outside the locking contour to release the locking comb in order to allow a shifting movement of the operation element and configured to be arranged in a second position in the locking contour to fix the locking comb in order to lock the operation element; and a rotationally mounted set ring with a control contour for guiding the locking element between the first position and the second position, wherein the method comprises: turning the set ring to move the locking element from the first position to the second position by the control contour in order to fix the locking comb for locking the operation element.

11 . The method of claim 10 , further comprising turning the set ring to move the locking element from the second position to the first position by the control contour to release the locking comb for a rotational movement in order to allow a shifting movement of the operation element.

12 . The method of claim 10 , wherein the locking contour is formed by a recess in the locking comb, and wherein the recess corresponds to a contour of the locking element.

13 . A shifting device for shifting an automatic transmission of a vehicle, the shifting device comprising:
an operation element configured to be shifted between a parking position or a neutral position of the automatic transmission and at least a driving position of the automatic transmission; and a locking device for locking the operation element, wherein a locking comb of the device is directly connected with the operation element.

14 . The shifting device of claim 13 , wherein the locking device of the shifting device further comprising:
the locking comb including a locking contour configured to be coupled with the operation element, wherein the locking comb is rotationally mounted; a locking element configured to be arranged in a first position outside a locking contour to release the locking comb for a rotational movement to allow a shifting movement of the operation element, and wherein the locking element is configured to be arranged in a second position in the locking contour to fix the locking comb for locking the operation element; and a rotationally mounted set ring with a control contour for guiding the locking element between the first position and the second position.

15 . The shifting device of claim 14 , wherein the locking contour is formed by a recess in the locking comb, and wherein the recess corresponds to a contour of the locking element.

16 . The shifting device of claim 14 , wherein the control contour is formed by a groove extending in the set ring, wherein the groove has a first groove section that extends closer to an outer contour than to an inner contour of the set ring, wherein the groove has a second groove section that draws closer to the set ring, wherein the first groove section is formed to guide the locking element in the first position, and wherein the second grove section is formed to guide the locking element from the first position to the second position.

17 . The shifting device of claim 14 , wherein the locking element comprises a protrusion on a side facing the control contour, wherein the protrusion is formed to engage with the control contour for guiding the locking element.

18 . The shifting device of claim 14 , wherein the locking comb is arranged between the set ring, wherein the operation element and the locking element is arranged radially relative to the locking comb and the set ring, and wherein the operation element is formed to be moved in radial direction relative to the locking comb and the set ring between the first position and the second position.

19 . The shifting device of claim 14 , further comprising a locking pin with a first pin position to engage in the locking contour of the locking comb and a second pin position to release the locking comb for a rotational movement, wherein the locking comb includes a stop element and the rotationally mounted set ring includes a control cam and a nose, wherein the control cam is formed by a radial expansion of the set ring and is configured to move the lockin

Assignees

• Zahnradfabrik Friedrichshafen
• Lemförder Electronic GmbH

Inventors

• Rake Ludger
• Giefer Andreas
• Rosentreter Sascha
• Hartrampf Ralf

Classifications

• F16H2059/081

  using knops or discs for rotary range selection · CPC title

• F16H61/22 Primary

  Locking {of the control input devices} (constructional features of locking or disabling mechanisms F16H63/34) · CPC title

• F16H2059/0282

  Lever handles with lock mechanisms, e.g. for allowing selection of reverse gear or releasing lever from park position · CPC title

• F16H59/0278 Primary

  Constructional features of the selector lever, e.g. grip parts, mounting or manufacturing · CPC title

• F16H59/08

  Range selector apparatus · CPC title