Module for detecting a vehicle crash and an airbag deploying system including the same차량 충돌 감지 모듈 및 이를 구비하는 차량 에어백 전개 시스템

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Embodiments of the present invention may provide a module for detecting a vehicle crash. The module includes a housing mounted to a vehicular frame member at one end portion thereof. The module includes first and second rods housed in the housing. The first rod is contacted to the frame member at one end thereof through the one end portion of the housing. The second rod is contacted to the opposite end of the first rod and being disposed between the first rod and the opposite end portion of the housing. The module includes first and second sensors mounted to the first and second rods respectively for detecting a crash by sequentially measuring stress wave caused by the crash. The first sensor detects a stress wave propagating through the first rod and outputting a signal. The second sensor detects a stress wave propagating through the second rod and outputting a signal. The module includes a biasing member disposed between the second rod and the opposite end portion of the housing for biasing the first and second rods toward the frame member. A magnitude of impedance of the first rod is larger than that of the second rod and the magnitude of impedance of the second rod is larger than that of the biasing member. The module can remarkably reduce the elapsed time required for detecting a crash by measuring a stress wave, which propagates very rapidly through a vehicular frame member.
Assignee
KAIST
Country
US (United States)
Issue Date
2012-01-24
Application Date
2008-09-26
Application Number
12238610
Registration Date
2012-01-24
Registration Number
08100215
URI
http://hdl.handle.net/10203/231036
Appears in Collection
ME-Patent(특허)
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