Airbag Control Unit T21 (ACU)


The Airbag Control Unit (ACU) is the heart of the passive safety restraint system. It hosts all features for front-, rear- and side-impact protection and includes further legislation relevant functions such as Crash Detection and Event Data Recorder.


Technical Specifications

ACU Type 21
ACUType 21 (T21)
Firing Loopsup to 24 according AK-LV 16 automotive specification
SatellitesStandard 6, if required up to 12 depending on firing targets
Network1 x CAN, 2 x LIN
Micro-Switch3 (e.g. buckle switch 2nd row)
Internal SensorsRollover Sensing
Crash DetectionFront, Rear, Side, Roll
EDRNHTSA phase 2 standard
# of IASG5 (e.g. Buckle switch, e.g. Seat position)
Lamp DriverPassenger Airbag De-/Activation Lamp 

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