Method and system for controlling steady-state speed of hydraulic cylinders in an electrohydraulic system
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United States of America Patent
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Oct 1, 2002
Grant Date -
Mar 21, 2002
app pub date -
May 23, 2000
filing date -
May 23, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method and system for controlling the steady-state speed of a cylinder in an electrohydraulic system having multiple cylinders includes a plurality of levers for controlling each of the cylinders. A controller, in communication with the levers and the hydraulic cylinders, has a limited number of parameters defining at least one desired relationship between steady-state speed and lever position for each of the cylinders stored therein. The controller further determines a current desired relationship for each of the cylinders from the associated at least one desired relationships. Upon detecting movement of the lever, the controller determines a current position of the lever associated with one of the cylinders and then controls the steady-state speed of the associated cylinder based on the limited number of parameters defining the current desired relationship and the position of the lever.
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