ACSM: Crash safety module
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The Crash Safety Module (ACSM) is the control unit for the passive safety system. The Crash Safety Module (ACSM) evaluates the longitudinal acceleration and lateral acceleration of all the involved sensors. Comprehensive tests were used to define triggering thresholds for all possible types of accident. The Crash Safety Module (ACSM) transmits a message to other bus users when the restraint systems are triggered. Depending on the accident severity to be expected, each of the control units performs certain functions, such as switching on the hazard warning flasher using the footwell module (FRM) or the Body Domain Controller (BDC).