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US 11,981,268 B2Granted
Energy absorbing material for a vehicle
AssigneeGM Global Technology Operations LLC
InventorsVarun Agarwal, Biswajit Tripathy, Rajamanickam Vs
Life of this patent
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Abstract
An energy absorbing material includes a multi-cellular structure formed from a plurality of interconnected cells having a lattice structure. Each of the plurality of interconnected cells includes at least four nodes and at least one lattice element extending between each of the at least four nodes. The at least one lattice element has a diameter no greater than 2.5 mm.
Claims20
A vehicle headliner formed from a head impact energy absorbing material comprising:
- a multi-cellular structure formed from a plurality of cells having a lattice structure defining the vehicle headliner, each of the plurality of cells including at least four nodes and at least one lattice element extending between each of the at least four nodes, the at least one lattice element having a diameter no greater than 2.5 mm, wherein the plurality of cells being interconnected one with another to form the multi-cellular structure.
A vehicle comprising:
- a body including a passenger compartment having a roof including an inner surface;
- and
- a headliner mounted to the inner surface of the roof, the headliner including a head impact energy absorbing material disposed in the passenger compartment, the head impact energy absorbing material comprising:
- a multi-cellular structure formed from a plurality of cells having a lattice structure, each of the plurality of cells including at least four nodes and at least one lattice element extending between each of the at least four nodes, the at least one lattice element having a diameter no greater than 2.5 mm, wherein the plurality of cells being interconnected one with another to form the multi-cellular structure.
1 more element
Dependencies are inferred from the claim text.