Method and apparatus configured to perform viscosity compensation for a payload measurement system
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United States of America Patent
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Apr 22, 2003
Grant Date -
N/A
app pub date -
Aug 22, 2001
filing date -
Sep 28, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a method and apparatus configured to perform viscosity compensation for a payload measurement system of a machine. The machine has at least one cylinder for elevating a payload carrier. The cylinder is connected to a fluid circuit having an actuating fluid. A plurality of pressure values of the actuating fluid are sensed during a lifting of a first payload. Then a plurality of pressure values of the actuating fluid are sensed during a lifting of a second payload. In addition a parameter indicative of the fluid viscosity associated with the first and second lift is established. A plurality of pressure values of the actuating fluid are sensed during a lifting of a third payload, and a parameter indicative of the viscosity of the actuating fluid associated with the third lift is established. A payload weight of the third payload is then determined in response to the viscosity indicative parameters, and the sensed plurality of actuating fluid pressure values.
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