Method and apparatus for monitoring payload
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United States of America Patent
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Jan 21, 1992
Issued Date -
N/A
app pub date -
Aug 20, 1990
filing date -
Aug 20, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In many applications, it is important to measure and display payload weight for a loader vehicle. The subject apparatus and method senses only the hydraulic pressure of a lift cylinder. The payload weight is computed by curve fitting the sensed cylinder pressure to a second order time dependent polynomial and comparing the time dependent polynomial to one of a series of predetermined second order geometric polynomials. The weight computation algorithms used in the 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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