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US 12,157,340 B2Granted
Spring system having a wide-band insulating effect
AssigneeHasse & Wrede GmbH
InventorsMichael Steidl, Norbert Reinsperger, Robert Kempgen, Mandy Streifler
Life of this patent
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Abstract
A spring system of a vehicle, in particular a utility vehicle, includes a first spring/damper unit with a first stiffness and a first damping; a second spring/damper unit with a second stiffness and a second damping; and an additional mass as a tuned-mass absorber. The tuned-mass absorber is coupled to at least one negative stiffness. A vehicle having such a spring system and a method for adapting the stiffness of a spring system are provided.
Claims17
A spring system of a vehicle, comprising:
- a first spring/damper unit with a first stiffness K1 and a first damping D1;
- a second spring/damper unit with a second stiffness K2 and a second damping D2;
- an additional mass as a tuned-mass absorber;
- at least one negative stiffness Kn, wherein the tuned-mass absorber is coupled to the at least one negative stiffness;
- and
- a translational transmission arranged between the tuned-mass absorber and the at least one negative stiffness.
3 more elements
A method for adapting a stiffness of a spring system of a vehicle, the method comprising:
- providing a spring system which has a first spring/damper unit with a first stiffness and a first damping, a second spring/damper unit with a second stiffness and a second damping, and an additional mass as a tuned-mass absorber;
- coupling at least one negative stiffness to the tuned-mass absorber by way of a translational transmission;
- and
- adapting the stiffness of the spring system and simultaneously isolating a vehicle body by way of the translational transmission coupled to the at least one negative stiffness and to the tuned-mass absorber.
1 more element
Dependencies are inferred from the claim text.