DEVICE FOR DETECTING VEHICLE SEAT OCCUPANCY
First Claim
1. A device for detecting the occupancy status of a seat of a vehicle comprising a sensor device for detecting the presence of a person on the seat and an analysis unit analyzing the sensor signal, with the sensor device being arranged in the seat belt buckle assigned to the seat, the sensor device being an electrical capacity sensor device whose electrical capacity is altered by the presence of a person occupying the seat and which, as a result, emits an electrical seat occupant presence output signal.
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Accused Products
Abstract
A device for detecting the occupancy status of a vehicle seat with an electrical capacity sensor device that is arranged in a seat belt buckle assigned to the vehicle seat and whose electrical capacity is altered relative to a reference potential (mass, ground) by the presence of a person occupying the vehicle seat and which, as a result, emits an electrical seat occupant presence output signal.
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Citations
12 Claims
- 1. A device for detecting the occupancy status of a seat of a vehicle comprising a sensor device for detecting the presence of a person on the seat and an analysis unit analyzing the sensor signal, with the sensor device being arranged in the seat belt buckle assigned to the seat, the sensor device being an electrical capacity sensor device whose electrical capacity is altered by the presence of a person occupying the seat and which, as a result, emits an electrical seat occupant presence output signal.
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12. A device for detecting the occupancy status of a seat of a vehicle comprising a sensor device for detecting the presence of a person on the seat and an analysis unit analyzing the sensor signal, with the sensor device being arranged in the seat belt buckle assigned to the seat, the sensor device being an electrical capacity sensor device whose electrical capacity is altered by the presence of a person occupying the seat and which, as a result, emits an electrical seat occupant presence output signal, and the seat belt buckle includes a buckle locking detector that detects the locking of a buckle tongue in the seat belt buckle and emits an electrical buckle locking signal, the outputs of the electrical capacity sensor device and the buckle locking detector being connected to a logic circuit, the buckle tongue having a transponder fixed thereto that carries a code assigned to the buckle tongue that is detected by a detector provided on the seat belt buckle
Specification