| 摘要 |
An energy-absorbing system includes two formed and sealed components bonded together to form crush boxes that entrap air for controlled distribution during an impact, and an activator system adapted to extend the crush boxes in the event of a vehicle crash. Channels interconnect the crush boxes for optimal control of lateral flow of air for lateral energy distribution. The components can be thermoformed, injection molded, or otherwise formed. By this arrangement, the crush boxes provide a first level of static energy absorption when impacted in an undeployed state such that energy is absorbed at a first rate and stroke. Also, the crush boxes can be extended to provide a second level of static energy absorption when impacted in a vehicle crash (i.e., the activator system is energized and the crush boxes extended or "deployed") such that energy is absorbed at a one or more different rates and strokes.
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