Torque transmitting device

Patent metadata

Field	Value
Publication number	US-12344096-B2
Application number	US-202017767685-A
Country	US
Kind code	B2
Filing date	Aug 20, 2020
Priority date	Oct 10, 2019
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

A torque transmitting device for a drive train for transmitting an input torque provided by at least one drive element to an output element. The device including: an electric motor having a stator and a rotor which can be rotated relative to said stator for providing a further drive torque; a separating clutch arranged operatively between the first drive element and the electric motor; and at least one centrifugal pendulum which is arranged operatively between the separating clutch and the output element and has at least two pendulum masses which are accommodated so as to be deflectable to a limited extent along a pendulum path and so as to be peripherally adjacent to one another on at least one pendulum mass carrier that can be rotated about an axis of rotation, wherein the peripherally adjacent pendulum masses are coupled to one another via coupling means.

First claim

The invention claimed is:

1. A torque transmitting device for a drive train for transmitting a drive torque provided by at least one drive element to an output element, the torque transmitting device comprising:
an electric motor having a stator and a rotor which can be rotated relative to said stator for providing a further drive torque,
a separating clutch arranged operatively between the drive element and the electric motor, and
at least one centrifugal pendulum arranged operatively between the separating clutch and the output element and having at least two pendulum masses received circumferentially adjacent to one another on at least one pendulum mass carrier rotatable about an axis of rotation and deflectable to a limited extent along a pendulum path,
wherein:
peripherally adjacent pendulum masses are coupled to one another via coupling means;
a torque transmitting unit is arranged operatively between the separating clutch and the output element;
the centrifugal pendulum is assigned to the torque transmitting unit; and
the torque transmitting unit is a torque converter with a pump impeller, a turbine wheel, and a converter bridging clutch.

2. The torque transmitting device according to claim 1 , wherein the coupling means are configured to set a force coupling and/or a movement coupling between the pendulum masses, wherein the coupling means for the force coupling have spring means and/or the coupling means for the movement coupling have transmitting means for transmitting the movement of one of the pendulum masses to at least the other pendulum mass.

3. The torque transmitting device according to claim 1 , wherein the coupling means are arranged peripherally between the pendulum masses.

4. The torque transmitting device according to claim 1 , wherein each of the pendulum masses, when moving along the pendulum path, rotates of its own accord about a center of rotation that deviates from the axis of rotation.

5. The torque transmitting device according to claim 1 , further comprising: a torsional vibration damper having a rotatable damper input part and a damper part which can be rotated to a limited extent relative thereto via an action of first spring elements arranged operatively between the separating clutch and the output element.

6. The torque transmitting device according to claim 5 , wherein the torsional vibration damper is configured with several stages and the damper part is an intermediate damper part to which a further damper part is connected in a limited rotatable manner via the action of second spring elements which are connected in series with the first spring elements.

7. The torque transmitting device according to claim 6 , wherein the centrifugal pendulum is arranged on the damper input part or on the damper part or on the further damper part.

8. The torque transmitting device according to a claim 5 , wherein the torsional vibration damper is arranged within the torque transmitting unit.

9. The torque transmitting device according to claim 1 , wherein the pendulum masses are arranged at least partially radially overlapping the rotor.

Assignees

• Schaeffler Technologies Ag

Inventors

• Vögtle Benjamin
• Krause Thorsten
• Maienschein Stephan
• Wahl Peter

Classifications

• F16H2045/0263

  the damper comprising a pendulum · CPC title

• F16H2045/0231

  arranged in series · CPC title

• F16H2045/002

  comprising a clutch between prime mover and fluid gearing · CPC title

• F16H45/02

  with mechanical clutches for bridging a fluid gearing of the hydrokinetic type (control of torque converter lock-up clutches F16H61/14) · CPC title

• F16D2300/22

  Vibration damping · CPC title