Occupant protection system for passenger vehicles

1) occupant protection system for passenger vehicles, a) with an impact detection device for detecting a dangerous collision of the vehicle, b) associated with at least one a specific seat protective device which in the event of a dangerous impact, comprising at least one person located on the seat and the agent protecting associated therewith a triggering means of a trigger signal can be supplied from the impact detection means, and c) with a seat-occupancy detection device, comprising a associated with the particular seat sensor unit and connected to an output of the sensor unit evaluation circuit which provides an enable signal for the associated with the particular seat protection means when the evaluation of the output signals of the sensor means obtained that the monitored seat of a person is busy, d) whereby only then performs a trigger signal for triggering the protection device of the particular seat, even if the corresponding enable signal is present, characterized, e) that the sensor unit (19) of the seat-occupancy detection device (18) to the foot area (26) in front of the seat to be monitored ...