Actuation device for a motor vehicle

Patent metadata

Field	Value
Publication number	US-10151391-B2
Application number	US-201414769271-A
Country	US
Kind code	B2
Filing date	Feb 3, 2014
Priority date	Feb 27, 2013
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

An actuation device for a motor vehicle having a transmission with gear steps and a friction clutch for automated actuation of both the transmission and the friction clutch, where the actuation device has an actuator device with whose help both a rotational movement and a translational movement is executable, in order to improve the actuation device in terms of construction and/or function.

First claim

What is claimed is:

1. An actuation device for a motor vehicle having a transmission with gear steps and a friction clutch, the actuation device comprising:
an actuator device, including:
a rotary drive;
a spindle screw; and,
a tappet which can be moved rotationally and translationally, the tappet having:
a first end;
a second end; and,
a radially outward facing surface; and,

a transmission actuating section:
connected to and extending from the radially outward facing surface; and,
arranged between the first end and the second end, the transmission actuating section comprising a ramp profile forming a point that is directed in a first axial direction, toward the second end.

2. The actuation device of claim 1 , wherein when the transmission is actuated, first a gear step which is to be engaged is selected and then the selected gear step is engaged, wherein a selection movement of the actuator device is executed with a rotational movement and an engagement movement of the actuator device is executed with a translational movement.

3. The actuation device of claim 1 , further comprising at least one catch tab arranged on the radially outward facing surface proximate the first end and configured to disengage a gear step, when engaging or shortly before engaging a gear step.

4. The actuation device of claim 2 , further comprising at least one catch tab configured to secure an actuation state of the transmission during actuation of the friction clutch.

5. The actuation device of claim 1 , wherein, when actuated, the transmission is actuated before the friction clutch.

6. The actuation device of claim 1 , wherein the rotary drive, using a continuous drive motion, actuates the transmission and the friction clutch one after the other.

7. The actuation device of claim 1 , wherein the second end is a clutch actuating section and the actuation device further comprises a fixed perforated mask and at least one movable gear track.

8. The actuation device of claim 7 , wherein the ramp profile is arranged to move the at least one gear track.

Assignees

• Schaeffler Technologies Ag

Inventors

• Herkommer Dominik
• Reimnitz Dirk
• Greb Peter

Classifications

• F16H63/30 Primary

  Constructional features of the final output mechanisms · CPC title

• F16H63/36

  Interlocking devices · CPC title

• F16H2063/025

  Final output mechanisms for double clutch transmissions · CPC title

• F16H63/20

  with preselection and subsequent movement of each final output mechanism by movement of the final actuating mechanism in two different ways, e.g. guided by a shift gate · CPC title

• F16H2063/202

  using cam plates for selection or shifting, e.g. shift plates with recesses or groves moved by a selector extension · CPC title