公开(公告)号：US20240051490A1

公开(公告)日：2024-02-15

申请号：US17883791

申请日：2022-08-09

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Rajamanickam VS ,  Vivekananda Kinila ,  Biswajit Tripathy ,  Varun Agarwal

IPC分类号： B60R21/34 ,  B62D25/10 ,  B62D27/02 ,  B32B5/18 ,  B32B3/26 ,  B32B7/12

CPC分类号： B60R21/34 ,  B62D25/105 ,  B62D27/026 ,  B32B5/18 ,  B32B3/263 ,  B32B7/12 ,  B32B2307/558 ,  B32B2605/08

摘要： A hood assembly of a vehicle includes a hood outer panel defining an outer surface of the hood assembly, and a hood inner panel defining an inner surface of the hood assembly, such that a hood cavity is defined between the hood inner panel and the hood outer panel. An energy absorbing material is located at the hood inner panel. The 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.

公开(公告)号：US20230116375A1

公开(公告)日：2023-04-13

申请号：US17500320

申请日：2021-10-13

申请人： GM Global Technology Operations LLC

发明人： Varun Agarwal ,  Biswajit Tripathy ,  Rajamanickam VS

IPC分类号： B60R13/02 ,  B60R21/04

摘要： 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.