Methods of occupancy state determination and computer programs
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United States of America Patent
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-
Mar 30, 1999
Issued Date -
N/A
app pub date -
Oct 11, 1996
filing date -
Apr 12, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A system for sensing the presence, position and type classification of an occupant in a passenger seat of a vehicle, as well as for sensing the presence of a rear-facing child seat therein, for use in controlling a related air bag activator control system to enable, disable or control inflation rate or amount of inflation of an air bag. The sensor system employs sensor fusion, a process of combining information provided by two or more sensors (24, 26), each of which 'sees' the world in a unique sense. In a preferred embodiment, infrared sensor inputs (78) and ultrasonic sensor inputs (79) are combined in a microprocessor by a sensor fusion algorithm (80) to produce an occupancy state output signal (85) to the air bag controller.
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