Power transmission

Details Power transmission Power transmission

F - Mech Eng,Light,Heat,Weapons

15

B

341/97

F15B 9/03 (2006.01) G05B 19/19 (2006.01)

Patent

CA 1247720

ABSTRACT OF THE DISCLOSURE An electrohydraulic servo control system which includes a position feedback loop responsive to actual position at the hydraulic actuator and load, and a position command reference generator responsive to an operator joystick input command and to an operator mode select switch for generating a position command reference signal to the position loop as differing functions of the joystick input in each of the switch-selectable modes. The selectable modes of operation include an absolute position control mode wherein the joystick input is treated as indicating absolute desired position at the actuator and load, an incremental position control mode wherein the joystick input is treated as indicating desired change in position with reference to a base position, and a velocity control mode wherein the joystick input is treated as indicating velocity at the actuator and load desired by the operator.

503456

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