CONSTRUCTION METHOD TO CONTROL FRONT ENGINE COMPARTMENT DEFORMATION
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United States of America Patent
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Sep 24, 2013
Grant Date -
Oct 17, 2013
app pub date -
Apr 12, 2012
filing date -
Apr 12, 2012
priority date (Note) -
Granted
status (Latency Note)
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Abstract
A frame structure absorbs energy from frontal impacts and extends under a front portion of the body frame. The frame structure includes a rear sub-frame located below and in front of a pair of side frame under-members, and an inverter protection brace extending between the front sub-frame and the rear sub-frame. Loading from the inverter protection brace travels through the rear sub-frame to A-point bolt connections located on the pair of front frame side members. The rear sub-frame moves rearward and deforms at the A-point bolt connections. The load through the A-point bolt connections changes the deformation mode of the frame front side members between the A-point bolt connections and B-point bolt connections. At least one of the pair of side frame under-members buckles rearward of the B-point bolt connection located on the pair of side frame under-members for energy absorption during the frontal impact.
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