Land vehicles – Wheeled – Attachment
Patent
1997-12-18
1999-09-28
Dickson, Paul N.
Land vehicles
Wheeled
Attachment
180273, 297DIG3, 177209, B60R 2132
Patent
active
059574917
ABSTRACT:
A seat weight sensor incorporates a fluid containing bladder placed in series with the load path in the seat, whereby a load applied to and distributed across the bladder increases the pressure of the fluid therein. The pressure of the fluid is measured by a pressure sensor and is substantially proportional to the magnitude of the applied load, and substantially inversely proportional to the supported area of the bladder. The output signal is substantially linear with respect to weight. Preferably, the amount of fluid in the bladder should be less than the capacity of the bladder when the bladder is unloaded. The seat weight sensor is incorporated into an occupant restraint system for controlling the safety restraint system responsive to the weight of the occupant.
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Bowman Todd K.
Cech Leonard S.
Gillis Edward J.
Palmer Dennis E.
Sewell Michael R.
Automotive Systems Laboratory Inc.
Dickson Paul N.
Jasmin Lynda
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