MRS control unit

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

Two acceleration sensors are fitted in the MRS 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 MRS control unit. If the voltage supply is interrupted in a collision, the ignition capacitor serves as an energy reserve for the MRS control unit.