Patent ID: 9663053
Date: 2017-05-30
CPC Classifications: B60R

Claim:
1. A collision detection device for a vehicle having a bumper cover and a bumper reinforcement, the collision detection device comprising: a chamber member that is disposed on a vehicle-front side of the bumper reinforcement in the bumper cover and includes a chamber main body having therein a hollow portion; a pressure sensor that detects pressure in the hollow portion of the chamber main body, wherein a clearance is formed between the chamber member and a front surface of the bumper reinforcement at least on a part of a rear surface of the chamber main body; a collision detection electronic control unit (ECU) that detects a collision of an object with the bumper cover based on a pressure detection result by the pressure sensor; and a projecting portion which is provided to project from the rear surface of the chamber main body and whose end is in contact with the front surface of the bumper reinforcement, wherein the projecting portion is provided to extend in an up-down direction of the vehicle.