Activation the safety system

Comprehensive tests are used to define triggering thresholds for all possible types of accident. This results in different trigger thresholds for activation of the various restraint systems (airbags, seatbelt tensioners, etc.). The restraint systems are only triggered if 2 independent sensors simultaneously detect the corresponding threshold values.

The MRS control unit evaluates the acceleration data of the sensors, thus determining the direction and severity of a collision. In the event of a collision, the MRS control unit decides whether it is required to trigger the system and which gas generators (seatbelt tensioners, airbags, etc.) have to be triggered. For example, the seatbelt tensioners have a lower trigger threshold than the front airbags. This means that, depending on the severity of the accident, only the seatbelt tensioners are triggered by the MRS control unit.