| 摘要 |
PROBLEM TO BE SOLVED: To quickly and surely provide the information concerning the seriousness and progress of a vehicle collision by relating the output signal of a collision sensor to a coordinate system fixed to the vehicle. SOLUTION: The output signals of a plurality of collision sensors mounted on a plurality of position of a vehicle are related to a coordinate system invariable to the vehicle. According to this, the seriousness and progress of a collision in the vehicle can be precisely detected in the respective collision sensor arrangement positions by the collision sensors, and it can be determined which passenger protecting device is to be operated according to the content of the signals. In order to more precisely analyze and process a number of generated sensor signals, for example, generated acceleration signals are integrated several times. The resulting speed and displacement are expressed in a relative coordinate system fixed to the vehicle. At this time, x, y}, for example, is taken as the relative coordinate system fixed to the vehicle. The position of the vehicle is imparted through the zero point and torsion of the coordinate system in an inertial system η, ξ}. |
