Gyroscope-based rotation damper for a motor vehicle

Patent metadata

Field	Value
Publication number	US-10556479-B2
Application number	US-201515544085-A
Country	US
Kind code	B2
Filing date	Dec 12, 2015
Priority date	Jan 17, 2015
Publication date	Feb 11, 2020
Grant date	Feb 11, 2020

Abstract

A gyroscope-based rotation damper for a motor vehicle, includes a flywheel that is driven via a drive, rotates around an axis of rotation at an angular velocity (ωφ), the flywheel being mounted in a gimbal on the motor vehicle structure by way of a first bearing element and a second bearing element. The flywheel is mounted rotatably around the angle of rotation (φ) at the first bearing element, and the first bearing element is rotatably mounted at the second bearing element around a first angle of rotation (θ) around a first axis aligned orthogonal to the axis of rotation of the flywheel, and the second bearing element is mounted rotatably around a second angle of rotation (ψ) around a second axis aligned orthogonal to the first axis, as well as a controller unit for controlling a shaft drive.

First claim

The invention claimed is:

1. A gyroscope-based rotation damper for a motor vehicle, comprising:
a flywheel that is driven via a drive, rotates around an axis of rotation at an angular velocity (ω φ ) and that is mounted on the motor vehicle structure via a first bearing element and a second bearing element in a gimbal, wherein the flywheel is mounted rotatably around an angle of rotation (φ) at the first bearing element, and the first bearing element is rotatably mounted at the second bearing element around a first angle of rotation (θ) around a first axis aligned orthogonal to the axis of rotation of the flywheel, and the second bearing element is mounted rotatably at the motor vehicle structure around a second angle of rotation (ψ) around a second axis aligned orthogonal to the first axis; and
a controller unit for controlling a shaft drive,
wherein the second bearing element rotatably mounted on the motor vehicle structure is operatively connected to the shaft drive via a drive shaft, wherein the first bearing element rotatably mounted at the second bearing element is operatively connected to a wheel carrier in such a way that a compression/rebound movement of the wheel carrier causes a rotation of the first bearing element around the first angle of rotation (θ), wherein the controller unit controls the angular velocity (ω ψ ) and the torque (M ψ ) of the drive shaft by way of the shaft drive as a function of the first angle of rotation (θ) and of the first torque (M θ ).

2. The gyroscope-based rotation damper according to claim 1 , wherein the drive of the flywheel and the shaft drive of the drive shaft is an electric motor.

3. The gyroscope-based rotation damper according to claim 1 , wherein the first bearing element is joined to the wheel carrier in such a way that for a compression/rebound movement of the wheel carrier, the following applies for the first angle of rotation (θ): −π/2<θ<+π/2.

4. The gyroscope-based rotation damper according to claim 1 , wherein the power flow at the drive shaft from the shaft motor is positive or negative.

5. The gyroscope-based rotation damper according to claim 1 , wherein the power flow at the axis of rotation from the drive is positive or negative.

6. The gyroscope-based rotation damper according to claim 1 , wherein the power flow at the first axis from the connection of the wheel carrier is positive or negative.

Assignees

• Audi Ag
• Karlsruher Institute Fuer Tech
• Karlsruher Inst Technologie

Inventors

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

Classifications

• B60G2600/17

  Proportional control, i.e. gain control · CPC title

• B60G2401/28

  Gyroscopes · CPC title

• B60G2202/42

  Electric actuator · CPC title

• B60G2202/22

  Rotary Damper · CPC title

• F16F15/02

  Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems ({F16F15/005 takes precedence } ; layered products B32B; suppression of vibration in ships B63; {relieving load on bearings, using magnetic means F16C39/06}) · CPC title