Door cavity sensors: pressure as an impact signal

Useful to know

The Bosch peripheral pressure sensor is placed in the door cavity. It monitors the pressure and changes caused by side-impact deformation. The information is used by the passenger protection management system. [1]

Here, a "peripheral" describes the location and task in the system, not a pressure sensor in a tire. The difference is substantial, although both components use the word "pressure".

The sensor is not a stand-alone airbag and does not guarantee uniform activation at every contact. The control unit evaluates the event according to the vehicle's construction. After a neck repair or stroke, it is important to follow the procedures for the particular model, instead of the components being treated as ordinary accessories. The description explains why part of the system may be located away from the central block.