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Passenger protection
Pressure sensor for seat occupied
recognition G452
Pressure sensor for seat occupied recognition G452
is connected to the mat for seat occupied
recognition by means of a hose. The mat, which is
filled with a silicone-like gel is fitted below the seat
cushion. If the front passenger seat is occupied,
pressure is applied to this mat via the seat cushion.
Pressure sensor for seat occupied recognition G452
generates an analogue voltage signal based on this
pressure. The seat occupied recognition control unit
supplies the pressure sensor with a voltage of
5 volts. The signal generated by the pressure sensor
lies between approx. 0.2 and 4.3 volts, depending on
the load on the seat. The higher the load, the lower
the voltage.
Seat belt force sensor for seat occupied
recognition G453
The sensor element is located between the belt lock
and the belt lock fastener, which is fixed to the seat
frame. It consists of two movable parts. Both parts
are held in their idle position by a defined spring.
The seat belt force sensor operates by means of a
hall sensor. On fitting the safety belt correctly, a
tensile force is applied to the belt lock. The sensor
measures the displacement distance of the parts to
each other. The greater the tensile force, the greater
the distance the parts are displaced. This changes
the signal from the sensor. This information is
evaluated by the seat occupied recognition control
unit under the seat. A mechanical stop ensures that
the sensor element is not torn apart in the event
of a crash.
326_052
326_014
326_051
Pressure sensor for
seat occupied recognition
Protective foil
Gel-filled mat for
seat occupied recognition
Seat belt force sensor, unloaded
Seat belt force sensor, under load
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