Vorrichtung und Verfahren zur Erfassung von Verschiebungen

摘要

In order to provide a technology which is effective for improving the detection quality for detection of displacement of a vehicle component during a vehicle collision,
a collision detection device (130) to be installed in a vehicle comprises a coil sensor (131). The coil sensor (131) includes a first coil which is arranged to face a door outer panel (12) and a second coil which is arranged near the first coil and inside the outer diameter of the first coil and centered about a line perpendicular to the coil plane of the first coil. The coil sensor (131) detects information about induced voltage due to magnetovariation via the second coil when the door outer panel (12) is located in a distant region and detects information about variation in impedance via the first coil when the door outer panel (12) is located in an adjacent region.