The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2010
Filed:
Jan. 31, 2008
Jenne-tai Wang, Rochester, MI (US);
Bing Deng, Rochester Hills, MI (US);
Qing Zhou, Beijing, CN;
Qi Liu, Beijing, CN;
Yong Xia, Beijing, CN;
Jenne-Tai Wang, Rochester, MI (US);
Bing Deng, Rochester Hills, MI (US);
Qing Zhou, Beijing, CN;
Qi Liu, Beijing, CN;
Yong Xia, Beijing, CN;
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
An energy-absorbing hood assembly for a vehicle includes upper, lower, and middle panels. The upper and lower panels respectively include first and second interface surfaces. The upper panel is preferably secured to an inner surface of an outer panel. The middle panel has opposing first and second surfaces defining an asymmetric waveform profile, preferably having a polygonal geometry. The middle panel member is secured to the first and second interface surfaces at preselected locations along the upper and lower surfaces, thereby defining a plurality of laterally oriented asymmetric channels. The asymmetric waveform profile is configured with distinct amplitudes and wavelengths along different regions of the hood assembly, each configured to provide different predetermined levels of absorption and attenuation of kinetic energy imparted to the hood assembly by objects upon impact therebetween. Ideally, the lower and middle panels are respectively configured to controllably fail at first and second predetermined crush loads.