Measuring and testing – Dynamometers – Responsive to force
Patent
1998-04-24
1999-12-07
Noori, Max
Measuring and testing
Dynamometers
Responsive to force
73862453, G01L 104
Patent
active
059964219
ABSTRACT:
Seat belt tension is determined by measuring the resistance of a flexible potentiometer which is deformed to produce a controlled change in resistance with increased belt tension. A seat belt mounting has a spring which allows limited extension of the seat belt in response to belt tension. A flexible potentiometer is mounted to the spring so that spring deformation produces a change in resistance which can be directly correlated to belt tension. Belt tension is input to an airbag deployment logic which may incorporate a seat position sensor, a weight-on-seat sensor and various other sensors which detect the existence, size and direction of any crash. The logic draws conclusions from the tension sensor in the seat belt and other sensors to determine if deployment of the front passenger airbag is likely to be advantageous to an occupant of the front passenger seat.
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Magnetic Field Sensors for Magnetic Position Sensing in Automotive Applications; GM R & D -8651; Joseph P. Heremans, Physics & Physical Chemistry Dept., Apr. 1997.
Breed Automotive Technology Inc.
Drayer Lonnie
Noori Max
Vrioni Beth
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