Title:
OCCUPANT DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO2003100462
Kind Code:
A3
Abstract:
An occupant detection system (10) comprises a weight sensor (12) and an electric field sensor (14), each operatively coupled to a seat (22). The electric field sensor (14) generates an electric field from at least one electrode (26) in the seat bottom of the seat, generates a response to an influence of the occupant (18) thereupon, and discriminates from the response a seated infant or child seating condition from another seating condition. If an output from the weight sensor (12) is less than a threshold, or if a seated child condition is detected, then a signal processor (U2) provides for disabling an associated restraint actuator (44). The electric field sensor (14) may comprise a plurality of electrodes (26, 26.1, 26.2) over separate first and second regions of differing proximity to a seated infant or child, or at least one electrode (26) in cooperation with a shield or void.
Inventors:
STANLEY JAMES G
STOPPER ROBERT A JR
STOPPER ROBERT A JR
Application Number:
PCT/US2003/016045
Publication Date:
April 08, 2004
Filing Date:
May 21, 2003
Export Citation:
Assignee:
AUTOMOTIVE SYSTEMS LAB (US)
International Classes:
B60N2/90; B60N2/00; B60N2/28; B60R21/01; B60R21/16; G01G19/414; B60R21/015; (IPC1-7): G08B13/26
Foreign References:
| US20020038947A1 | 2002-04-04 | |||
| US6283504B1 | 2001-09-04 | |||
| US6378900B1 | 2002-04-30 | |||
| US6348862B1 | 2002-02-19 | |||
| US5948031A | 1999-09-07 |
Other References:
See also references of EP 1573695A4
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