Rotation damper for a motor vehicle

Patent metadata

Field	Value
Publication number	US-10449818-B2
Application number	US-201515541199-A
Country	US
Kind code	B2
Filing date	Dec 12, 2015
Priority date	Jan 17, 2015
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

A rotation damper for a motor vehicle. A flywheel driven via a drive with angular velocity and rotating about an axis of rotation is cardanically mounted via a first bearing element and a second bearing element. The flywheel is rotatably mounted on the first bearing element at the rotational angle and the first bearing element is rotatably mounted on the second bearing element at a first rotational angle of a first axis of the flywheel oriented orthogonally to the axis of rotation, and the second bearing element is rotatably mounted at a second rotational angle of a second axis oriented orthogonally to the first axis. The first bearing element is operationally connected to a shaft drive and the second bearing element can be connected by a means to a wheel carrier of the motor vehicle.

First claim

The invention claimed is:

1. A rotation damper for a motor vehicle, comprising:
a flywheel driven via a drive and rotating with angular velocity about an axis of rotation is cardanically mounted via a first bearing element and a second bearing element,
wherein the flywheel is rotatably mounted on the first bearing element at an angle of rotation of the axis of rotation and the first bearing element is rotatably mounted at the second bearing element at a first rotational angle of a first axis oriented orthogonally to the axis of rotation of the flywheel, and the second bearing element is rotatably mounted at a second rotational angle of a second axis oriented orthogonally to the first axis,
wherein the first bearing element is operationally connected to a shaft drive and the second bearing element is connected via a means to a wheel carrier of the motor vehicle,
wherein the first bearing element is designed in the form of a hollow shaft in whose interior is rotatably mounted the flywheel about the angle of rotation, and
wherein the second bearing element is formed with two bearing legs oriented orthogonally to the second axis and two bearing brackets connecting both bearing legs, oriented parallel to the second axis, wherein the first bearing element is rotatably mounted at the first rotational angle of the first axis between both bearing brackets.

2. The rotation damper according to claim 1 , wherein the flywheel is designed in the form of a flywheel shaft provided with a circumferential ring, wherein the flywheel shaft is designed as a hollow part in whose interior is arranged the drive.

3. The rotation damper according to claim 2 , wherein the drive arranged in the flywheel shaft is designed as an electric motor, having a stator that is fixedly connected to the first bearing element and whose rotor is a flywheel shaft that is designed as a hollow part.

4. The rotation damper according to claim 3 , wherein the flywheel shaft which is designed as a hollow part, is provided with a ribbed structure.

5. The rotation damper according to claim 3 , wherein the circumferential ring is formed from a material that is different from the remaining material of the flywheel shaft, wherein the material, wherein the material of the circumferential ring has a higher density than the remaining material of the flywheel shaft.

6. The rotation damper according to claim 1 , wherein the first bearing element is arranged in a housing at a second bearing element.

7. The rotation damper according to claim 1 , wherein the shaft drive of the first bearing element is flanged to a bearing strut of the second bearing element.

8. The rotation damper according to claim 1 , wherein between the first bearing element and the second bearing element is arranged a stop limiting the rotational movement of the first bearing element, wherein the stop is arranged in such a way that the rotation angle of the first bearing element is limited to the interval −π/2<θ<+π/2.

Assignees

• Audi Ag
• Karlsruher Inst Technologie

Inventors

• Koch Tilo
• Gauterin Frank
• Scheurich Bastian
• Frey Michael

Classifications

• B60G2401/28

  Gyroscopes · CPC title

• B60G13/02

  having dampers dissipating energy, e.g. frictionally · CPC title

• B60G13/18 Primary

  combined with energy-absorbing means · CPC title

• B60G13/005

  characterised by the mounting on the axle or suspension arm of the damper unit · CPC title

• B60G13/14

  having dampers accumulating utilisable energy, e.g. compressing air {(fluid springs with an accumulator B60G11/30)} · CPC title