Detecting a crash and determining the triggering times and the order

The Crash Safety Module uses the values transmitted by the sensors to determine the direction and severity of the crash. The threshold values of two independent sensors must be exceeded in order to detect a crash. In the case of a front-end crash, for example, the relevant high acceleration values from the B-pillar satellite and from the longitudinal acceleration sensor must be detected in the crash safety module. Triggering the output stages of the firing circuits

Based on the acceleration values and crash severity and direction, an algorithm determines the triggering (firing) points and the order of the restraint systems to be activated.

A possible imminent rollover is also detected and the appropriate protection systems are activated.