Automotive systems

Details Automotive systems Automotive systems

2007-02-20

2007-02-20

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S457000

Reexamination Certificate

active

10987318

ABSTRACT:
An occupant detection system includes a weight sensor and an electric field sensor, each operatively coupled to a seat. The electric field sensor generates an electric field from at least one electrode in the bottom of the seat, provides for generating a response to an influence of the occupant, and is adapted to discriminate the response of a seated infant or child seating condition from another seating condition. If a measure of weight from the weight sensor is less than a threshold, or if a child seating condition is detected by the electric field sensor, then a signal processor provides for disabling an associated restraint actuator. The electric field sensor may include a plurality of electrodes over first and second regions of differing proximity to a seated infant or child, or at least one electrode in cooperation with a shield or void over at least one of the regions.

REFERENCES:
patent: 5633594 (1997-05-01), Okada
patent: 5914610 (1999-06-01), Gershenfeld et al.
patent: 6043743 (2000-03-01), Saito et al.

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