DIFFERENTIAL PRESSURE OCCUPANT DETECTION

An occupant detection system (12) is configured to classify an object that resides on a seat (10) of a vehicle. The system (12) includes a first bladder (22), a second bladder (24), and a differential pressure sensor (30). The first bladder (22) is configured to be disposed in a central area of a se...

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Bibliographische Detailangaben
Hauptverfasser:	GRIFFIN DENNIS P, CURTIS ANDREW H
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PERFORMING OPERATIONS PHYSICS SEATS SPECIALLY ADAPTED FOR VEHICLES TESTING TRANSPORTING VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	An occupant detection system (12) is configured to classify an object that resides on a seat (10) of a vehicle. The system (12) includes a first bladder (22), a second bladder (24), and a differential pressure sensor (30). The first bladder (22) is configured to be disposed in a central area of a seat (10). The second bladder (24) is configured to be disposed in a peripheral area of the seat (10). The differential pressure sensor (30) is fluidicly coupled to the first bladder (22) and the second bladder (24) in a manner effective to determine a pressure difference between a first pressure of the first bladder (22) and a second pressure of the second bladder (24). In one configuration, the first bladder (22) and the second bladder (24) are configured so the pressure difference when a person sits on the seat (10) is greater than the pressure difference when a child-seat occupies the seat (10).