Sensors

The sensor that triggers the warning signal to fasten the seatbelt is an electromechanical pressure-sensitive foil sensor. It can be mounted either directly under the seat cover or under the seat cushion. The sensor is intended to alert that the seatbelt is not fastened when someone is sitting in the seat, but otherwise must not cause a false alarm in the case of a lightweight object, such as a briefcase on the passenger seat. The sophisticated development process of the sensor must take into account all seat and seat cover tolerances and the entire temperature spectrum. The specific adjustment of the sensor parameters is carried out by means of extensive laboratory measurements and practical testing with test subjects.