ACSM control unit

All inflator assemblies and sensors are connected directly to the ACSM control unit. The ACSM control unit evaluates the data from the sensors. In the event of a collision, the ACSM control unit decides whether seatbelt tensioner and airbag triggering is required and which airbags have to be triggered.

Two acceleration sensors are fitted in the ACSM control unit. The longitudinal acceleration sensor detects frontal or rear-end collisions. The lateral acceleration sensor acceleration sensor detects a side impact.

An ignition capacitor is fitted in the ACSM control unit. If the power supply is interrupted in a collision, the ignition capacitor serves as an energy reserve for the ACSM control unit.