Gear selection unit for an automatic transmission for a vehicle, and method for operating a gear selection unit

Patent metadata

Field	Value
Publication number	US-10495212-B2
Application number	US-201515313868-A
Country	US
Kind code	B2
Filing date	Apr 27, 2015
Priority date	May 27, 2014
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

The present disclosure provides a gear selection unit for an automatic transmission. The gear selection unit may include a mount having a gate, where the gate has an automatic channel oriented in a longitudinal direction and a tapping channel disposed adjacent to the automatic channel, and where the automatic channel and the tapping channel are connected to one another via a connecting channel. A selection lever may be inserted in the gate, and the selection lever may be pivotably supported in the mount. A cable pull slider may be movably supported in the longitudinal direction in the mount, where the cable pull slider is coupled to the selection lever via a releasable first coupling device when the selection lever is disposed in the automatic channel. A connector may be coupled in the longitudinal direction to the cable pull slider via a second coupling device.

First claim

We claim:

1. A gear selection unit for an automatic transmission for a vehicle, the gear selection unit comprising:
a mount having a gate, wherein the gate has an automatic channel oriented in a longitudinal direction and a tapping channel disposed adjacent to the automatic channel and oriented in the longitudinal direction, wherein the automatic channel and the tapping channel are connected to one another via a connecting channel oriented in a transverse direction;
a selection lever inserted in the gate, the selection lever being pivotably supported in the mount, wherein a ball located at a bottom of the selection lever is located in a ball socket that is fixed relative to a base plate of the gear selection unit;
a cable pull slider, the cable pull slider being movably supported in the longitudinal direction in the mount, wherein the cable pull slider is coupled to the selection lever via a releasable first coupling device when the selection lever is disposed in the automatic channel, the first coupling device having an element that is fixed to the selection lever at a position above the bottom of the selection lever; and
a connector, wherein the connector is coupled to the cable pull slider via a second coupling device, the second coupling device including an axle and second recess such that the connector is pivotable with one degree of rotation relative to the cable pull slider, wherein the connector is coupled in the transverse direction to the selection lever via a third coupling device, and wherein the connector is secured to the mount in the longitudinal direction via a releasable fourth coupling device when the selection lever is disposed in the tapping channel.

2. The gear selection unit of claim 1 , wherein the selection lever is released from the cable pull slider by the first coupling device when the selection lever is disposed in the tapping channel.

3. The gear selection unit of claim 1 , wherein the selection lever is coupled to the cable pull slider by the first coupling device when the selection lever is disposed in the connecting channel.

4. The gear selection unit of claim 1 , wherein the first coupling device comprises a recess and a sliding piece that is movable in the transverse direction in relation to the recess, wherein the sliding piece is fixed relative to the selection lever, wherein the recess has at least one first contact surface acting in the longitudinal direction, wherein the sliding piece has at least one second contact surface corresponding to the first contact surface, and wherein the first contact surface at least partially bears the second contact surface when the selection lever is disposed in the automatic channel.

5. The gear selection unit of claim 1 , wherein the third coupling device comprises a recess and a sliding piece that can move in the longitudinal direction in relation to the recess, wherein the recess has at least one first contact surface acting in the transverse direction, wherein the sliding piece has at least one second contact surface corresponding to the first contact surface, and wherein the sliding piece is permanently disposed in the recess.

6. The gear selection unit of claim 5 , wherein the sliding piece of the third coupling device includes a ball-head.

7. The gear selection unit of claim 1 , wherein the fourth coupling device comprises a recess and a sliding piece that is movable in the transverse direction in relation to the recess, wherein the recess has at least one first contact surface acting in the longitudinal direction, wherein the sliding piece has at least one second contact surface corresponding to the first contact surface, and wherein the first contact surface at least partially bears the second contact surface when the selection lever is disposed in the tapping channel.

8. The gear selection unit of claim 1 , wherein the cable pull slider has an interface for shifting a cable, wherein the cable is configured to transfer a movement of the cable pull slider to the automatic transmission.

9. The gear selection unit of claim 1 , wherein the cable pull slider is supported such that the cable pull slider can move linearly at an end facing a shifting cable, and wherein the first coupling device is designed to transfer a rotational movement of the selection lever into a substantially linear movement of the cable pull slider.

10. A method for operating a gear selection unit, the method comprising:
releasing a first coupling device coupling a selection lever and a cable pull slider, such that the selection lever and the cable pull slider are released from one another, when the selection lever is moved from an automatic channel of a mount into a tapping channel of the mount, wherein the automatic channel and the tapping channel are connected to one another via a connecting channel;
connecting a second coupling device to couple a connector and the mount when the selection lever is moved from the automatic channel into the tapping channel;
releasing a second coupling device coupling a connector and the mount, such that the connector is released from the mount, when the selection lever is moved from the tapping channel into the automatic channel; and
connecting the first coupling device between the selection lever and the cable pull slider when the selection lever is moved from the tapping channel into the automatic channel,
wherein the first coupling device includes a recess located within the cable pull slider and having at least one curved contact surface for receiving a sliding projection, the sliding projection being fixed relative to the selection lever.

11. A gear selection unit for an automatic transmission for a vehicle, the gear selection unit comprising:
a mount having a gate configured to receive a selection lever such that the selection lever is pivotably supported in the mount, wherein the gate has an automatic channel oriented in a longitudinal direction and a tapping channel disposed adjacent to the automatic channel and oriented in the longitudinal direction, wherein the automatic channel and the tapping channel are connected to one another via a connecting channel oriented in a transverse direction;
a cable pull slider, the cable pull slider being movably supported in the longitudinal direction in the mount, wherein the cable pull slider is configured to couple to the selection lever via a releasable first coupling device when the selection lever is disposed in the automatic channel, and wherein the first coupling device includes a recess located within the cable pull slider and having at least one curved contact surface for receiving a sliding projection, the sliding projection being fixed relative to the selection lever; and
a connector, wherein the connector is coupled in the longitudinal direction to the cable pull slider via a second coupling device, wherein the connector is configured to couple in the transverse direction to the selection lever via a third coupling device, and wherein the connector is configured to be secured to the mount in the longitudinal direction via a releasable fourth coupling device when the selection lever is disposed in the tapping channel.

12. The gear selection unit of claim 11 , wherein the cable pull slider is configured such that the selection lever is released from the cable pull slider by the first coupling device when the selection lever is disposed in the tapping channel, and/or the connector is released from the mount by the fourth coupling device when the selection lever is disposed in the automatic channel.

13. The gear selection unit of claim 11 , wherein the cable pull slider is configured such that the selection lever is coupled to

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Grosse Kohorst Berthold

Classifications

• F16H61/22

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

• F16H2059/026

  Details or special features of the selector casing or lever support · CPC title

• F16H59/0204 Primary

  for automatic transmissions with means for range selection and manual shifting, e.g. range selector with tiptronic · CPC title

• F16H61/36

  with at least one movement being transmitted by a cable · CPC title

• F16H59/10

  comprising levers · CPC title