Kollisions-Erfassungsvorrichtung für ein Fahrzeug

摘要

A crash detection apparatus of a vehicle includes acceleration sensors mounted on different positions of a vehicle, each for detecting an acceleration at its position. A crash mode identifying section identifies a crash mode of the vehicle in accordance with a time difference between timings at which integral values obtained by integrating the individual acceleration signals supplied from the acceleration detectors exceed a threshold value. In accordance with the crash mode, a reference threshold value of a comparator for making a crash decision is determined. This makes it possible to implement a crash detection apparatus of a vehicle capable of making a responsive crash decision even in an asymmetric crash in which only one side of the vehicle is deformed and the occurrence of a large acceleration signal is delayed.