| 摘要 |
PROBLEM TO BE SOLVED: To provide a collision detection device for a vehicle which improves collision detection accuracy by a chamber member in a chamber type collision detection device for a vehicle.SOLUTION: A collision detection device 1 for a vehicle includes a chamber member 2 which is arranged on a vehicle front side of a bumper reinforcement 9 in a bumper 6 of a vehicle and formed with a chamber space 2a therein, and a pressure sensor 3 for detecting pressure in the chamber space 2a, and detects collision of an object to the bumper 6 on the basis of a pressure detection result by the pressure sensor 3. The chamber member 2 includes a non-facing part 2b which does not face a front surface 9a of the bumper reinforcement 9, and a support member 4 at least one part of which is connected to the non-facing part 2b of the chamber member 2 and the other part of which is fixed to the bumper reinforcement 9 being a rigid member on the vehicle side. |
