Front Belt Tension Limiter: Notes
The belt tension limiters for the driver and passenger seat are inertia reel seatbelts with adaptive force limitation.
A gas generator is used to switch from a high degree of force to a lower degree of force. This also has to be possible during an accident to achieve a regressive force reduction. The advantage of the adaptive belt tension limiter is the considerable reduction of the load on the chest in the event of a crash.
With optimum coordination to the airbag, the kinetic energy of the occupant is reduced evenly across the duration of the crash, thus achieving low occupant load values.