Collision detection device for use in vehicle, has pressure sensor for detecting pressure in chamber area of chamber element, and detection device configured based on pressure change in chamber area, where element has recessed section

摘要

The device (1) has a detection device for detecting collision of an object with a bumper (2) of a vehicle. A chamber element (7) is arranged at a front surface of a bumper reinforcement (4) in a driving direction of the vehicle, where the element has an elongated rectangular parallelepiped-shape. The element has a recessed section and a projecting section, and an edge part of the element is arranged at a front surface of the element. A pressure sensor (8) detects pressure in a chamber area of the element, and the detection device is configured based on pressure change in the chamber area.