Patent ID: 8100215
Filing Date: 2012-01-24
Classification: B60R

Abstract:
1. A module for detecting a vehicle crash, comprising: a first rod adapted to contact to a vehicular frame member at one end thereof and a second rod adapted to contact to the opposite end of the first rod at one end thereof; first and second sensors mounted to the first and second rods, respectively, the first sensor configured to detect stress wave propagating through the first rod and to output a signal, the second sensor configured to detect stress wave propagating through the second rod and to output a signal; a housing configured to support the first and second rods, the housing being mounted to the frame member at one end portion thereof such that the one end of the first rod is brought into contact with the frame member; and a biasing member disposed between the opposite end of the second rod and the opposite end portion of the housing for biasing the first and second rods toward the frame member; wherein 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.