Motors: expansible chamber type – Working member position feedback to motive fluid control – Electrical input and feedback signal means
Reexamination Certificate
2005-09-06
2005-09-06
Look, Edward K. (Department: 3745)
Motors: expansible chamber type
Working member position feedback to motive fluid control
Electrical input and feedback signal means
C091S36300A
Reexamination Certificate
active
06938535
ABSTRACT:
A method is provided for controlling hydraulic flow to a hydraulic actuator. The method includes generating a command signal based on an operator input, sensing a linkage position associated with the hydraulic actuator, and selecting a moving rate of a valve associated with the hydraulic actuator based on the sensed linkage position and the command signal. The valve is modulated to control the hydraulic flow to the hydraulic actuator based on the selected moving rate.
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Caterpillar Inc
Kershteyn Igor
Look Edward K.
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