公开(公告)号：US20180352890A1

公开(公告)日：2018-12-13

申请号：US16106721

申请日：2018-08-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Louis G. HECTOR, JR. ,  Nilesh D. MANKAME ,  Hanif MUHAMMAD ,  Anil K. SACHDEV

IPC: A42B3/10 ,  B32B27/08 ,  B32B3/06 ,  B32B3/08 ,  B32B3/12 ,  B32B3/26 ,  B32B3/30 ,  B32B5/02 ,  B32B5/26 ,  B32B7/12 ,  B32B9/00 ,  B32B9/04 ,  B32B15/04 ,  B32B15/08 ,  B32B15/09 ,  B32B15/14 ,  B32B15/18 ,  F16F7/00 ,  B60R21/34 ,  B32B27/36 ,  B32B27/12 ,  B32B18/00 ,  B32B17/00 ,  B32B15/20 ,  A42B3/06

CPC classification number: A42B3/10 ,  A42B3/065 ,  B32B3/06 ,  B32B3/08 ,  B32B3/12 ,  B32B3/266 ,  B32B3/30 ,  B32B5/02 ,  B32B5/26 ,  B32B7/12 ,  B32B9/005 ,  B32B9/04 ,  B32B9/041 ,  B32B9/045 ,  B32B9/047 ,  B32B15/043 ,  B32B15/08 ,  B32B15/09 ,  B32B15/14 ,  B32B15/18 ,  B32B15/20 ,  B32B17/00 ,  B32B18/00 ,  B32B27/08 ,  B32B27/12 ,  B32B27/36 ,  B32B2250/03 ,  B32B2255/06 ,  B32B2262/0269 ,  B32B2262/101 ,  B32B2307/50 ,  B32B2307/51 ,  B32B2307/558 ,  B32B2307/56 ,  B32B2437/04 ,  B32B2571/00 ,  B32B2605/08 ,  B32B2605/10 ,  B32B2605/12 ,  B60R21/34 ,  B60R2021/343 ,  F16F7/003 ,  F16F7/12 ,  F16F2224/0208 ,  F16F2224/0225 ,  F16F2224/025 ,  F16F2224/0275

Abstract: A cover covering an object includes an inner surface of the cover facing the object and spaced from the object, and an outer surface of the cover opposite the inner surface. A local energy absorber is operatively attached to the inner surface of the cover. The local energy absorber includes an energy absorbing core layer operatively attached to the inner surface of the cover and a frangible face sheet layer attached to the energy absorbing core layer facing the object. The frangible face sheet layer is to initiate fracture of the frangible face sheet layer during an impact applied to the outer surface defining an impact event having a duration of less than 20 milliseconds.

公开(公告)号：US20180327033A1

公开(公告)日：2018-11-15

申请号：US16036051

申请日：2018-07-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Nilesh D. MANKAME ,  Hanif MUHAMMAD ,  Louis G. HECTOR, JR. ,  Anil K. SACHDEV

IPC: B62D25/12

CPC classification number: B62D25/12 ,  B60R19/023 ,  B60R19/03 ,  B60R19/18 ,  B60R21/34 ,  B60R2019/182 ,  B60R2021/343 ,  B62D25/105 ,  F16F7/12

Abstract: A vehicle hood covering an underhood object includes an inner surface of the vehicle hood facing the underhood object and spaced from the underhood object, and an outer surface of the vehicle hood opposite the inner surface. A local energy absorber is operatively attached to the inner surface of the vehicle hood. The local energy absorber is a multiply-connected structure. The local energy absorber includes a wall defining an interior surface having symmetry about a central plane normal to the inner surface of the vehicle hood. A plurality of apertures is defined in the wall symmetrically about the central plane to initiate buckling and fracture in the wall during an impact applied to the outer surface defining an impact event having a duration of less than 20 milliseconds.