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US 12,617,248 B2Granted
Inductive shock absorber
AssigneeAudi AG
InventorsRonny Demmler, Jürgen Pöppel
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Abstract
An inductive shock absorber for a motor vehicle is provided having a cylindrical damper tube and a damper rod. A related method for operating a shock absorber is also provided.
Claims13
A shock absorber for a motor vehicle, comprising:
- a cylindrical damper tube;
- and
- a damper rod, which can move in a linear manner inside the damper tube, and in which at least one permanent magnet is situated, wherein at least two coils are arranged in the damper tube, wherein a first coil and a second coil of the at least two coils are configured to be energized, during operation, by electric currents of different current strength simultaneously to regulate dampening characteristics of the shock absorber.
A method for operating a shock absorber of a motor vehicle, the shock absorber including a cylindrical damper tube and a damper rod that can move linearly inside the damper tube, wherein the damper tube includes at least two coils and the damper rod includes at least one permanent magnet, the method comprising:
- regulating a dampening characteristic of the shock absorber by conducting electric currents of different current strength simultaneously through individual coils of the at least two coils;
- and
- using kinetic energy of the damper rod to generate electrical energy;
- and
- taking the energy out from the at least two coils.
2 more elements
Dependencies are inferred from the claim text.