Siemens Aktiengesellschaft

Siemens Vdo Automotive Ag

Peter Karges

Gerd Winkler

Gerhard Wild

Hubert Melzl

Erwin Hetzenecker

Michael Krempl

Reinhard Schmid

A device and a method for differentiating between a person sitting on the seat surface of a vehicle seat and an object such as, for example, a child seat. The device has a cushion provided with weight sensors which are distributed over the seat surface in a plane manner, first weight sensors being arranged in a central region and second weight sensors being arranged on the edge of the seat surface. At least one central weight sensor is differentiated from a plurality of second weight sensors on the edge of the seat surface in that it always emits a comparatively low sensor signal when subjected to the same weight load.

Device and method for differentiating between a person and an object on a motor vehicle seat using multiple sensors

A circuit configuration recognizes the occupancy of a seat and triggers a seat belt warning in a motor vehicle. Resistance elements are disposed in a separated and flat manner on a motor vehicle seat, in particular on a sensor seating mat, which alters the resistance values when a force is exerted thereon, for example, perpendicular to the surface of the vehicle seat, or by bending. The weight-sensitive resistance elements contain first resistance elements and additional resistance elements, and the resistance values thereof can be measured in respectively different measuring circuits without the measuring results for the first resistance elements influencing the measuring results for the additional resistance elements.

Circuit configuration for recognizing the occupancy of a seat and seatbelt warning in a motor vehicle

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Yokohama, Japan

Peter Karges