Occupant proximity sensor with horn switch

Details Occupant proximity sensor with horn switch Occupant proximity sensor with horn switch

1999-04-21

2000-10-24

Rice, Kenneth R.

Land vehicles

Wheeled

Attachment

280735, B60R 2116

Patent

active

061354945

ABSTRACT:
A cover member (20) for a steering wheel mounted air bag module (14) is provided. The cover member (20) includes a horn switch (26) formed by a first conductive layer (30) defining a ground plane, and a second conductive layer (28) for contacting one side of the first conductive layer (30). The cover member (20) further includes a proximity sensor (24) formed by a third conductive layer (32) and a fourth conductive layer (34). The third and fourth conductive layers (32, 34) are electrically associated with the first conductive layer (30), and the proximity sensor (24) generates an electric field (50) in response to a signal received from a driver circuit (48).

REFERENCES:
patent: 5178409 (1993-01-01), Hiramitsu et al.
patent: 5520412 (1996-05-01), Davis
patent: 5721409 (1998-02-01), Enders
patent: 5722686 (1998-03-01), Blackburn et al.
patent: 5961144 (1999-10-01), Desmarais

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