Dynamic payload monitor
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United States of America Patent
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-
Apr 21, 1992
Grant Date -
N/A
app pub date -
Mar 5, 1991
filing date -
Mar 5, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A dynamic payload monitor measures and displays payload weight for a loader vehicle by sensing the hydraulic pressure of a lift arm cylinder. The payload weight is computed by curve fitting the second cylinder pressure to a second order polynomial, calculating a pressure differential, and then performing interpolation or extrapolation with a pair of pressure versus position or time reference parabolas obtained during calibration. The weight computation algorithms used in the dynamic payload monitor are applicable to a number of work vehicles having at least one work implement linkage and at least one hydraulic cylinder for modifying the linkage geometry.
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