Front Door Satellites (STVL/STVR)

Front Door Satellite, Left/Right (STVL/STVR)

The STVL/STVR are located inside the front doors, attached to the inner door carriers. The STVL/STVR contain a pressure sensor.




The front door satellites are responsible for deploying the driver and passenger side airbags.

The satellite STVL/R is connected to the SIM via the byteflight. The power supply of the satellites is also from the SIM and it is buffered by the memory backup capacitor. In sleep mode of the byteflight, the power supply of the STVL/R is deactivated by the SIM. The watchdog function is run by the SIM.







Sensor System

A pressure sensor is integrated into the front door satellite. In the event of a collision, penetration of the door outer skin reduces the volume of the door, which leads to a significant rise in pressure.

The relative pressure change and rise in pressure evaluated over time are important factors for the crash evaluation.

The ignition stages are diagnosed and controlled by the igniter ICs. The self-diagnosis of the trigger circuits during the pre-drive check and in normal operation is the same for all satellites. (See SASL)