Patent ID: 7768381
Filing Date: 2010-08-03
Classification: B60R

Abstract:
1. A collision detection apparatus for a vehicle having a vehicle bumper, which includes a bumper reinforcement, the collision detection apparatus comprising: a chamber member that is provided inside the vehicle bumper at a front surface of the bumper reinforcement, the chamber member having a chamber space therein; a pressure sensor that is configured to sense change of pressure in the chamber space; and collision detecting means for detecting collision of a collision object with the vehicle bumper based on a detection result by the pressure sensor, wherein: the chamber member includes a deformable part and a non-deformable part, each of which extends in a vehicle width direction; the deformable part and the non-deformable part integrally define the chamber space; the deformable part is compressed to be deformed between the collision object and the bumper reinforcement in a case, where the collision object collides with the vehicle bumper; and the non-deformable part is limited from being compressed to be deformed between the collision object and the bumper reinforcement.