VEHICLE COLLISION SENSOR AND VEHICLE COLLISION DETECTION DEVICE USING SAME

摘要

A vehicle collision sensor that detects collisions with a bumper cover (22) provided in a front section (21) of a vehicle (VE) has a piezoelectric macromolecular film (3). The piezoelectric macromolecular film (3) is formed on a piezoelectric macromolecular material that is either extended or polarized in a prescribed treatment direction. The piezoelectric macromolecular film (3) is attached to the inside surface (22a) of the bumper cover, such that the prescribed treatment direction matches the vehicle width direction and such that the prescribed treatment direction does not match the vertical direction, and forms an output voltage (Vpz) corresponding to the amount of deformation (Q) of the bumper cover.