Apparatus for controlling deceleration of hydraulically...

Details Apparatus for controlling deceleration of hydraulically... Apparatus for controlling deceleration of hydraulically...

2007-11-20

2007-11-20

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

Methods of operation

C060S469000, C091S361000

Reexamination Certificate

active

11299926

ABSTRACT:
A machine member driven by a hydraulic actuator may oscillate, or wag, when the hydraulic actuator decelerates or stops. The degree of oscillation is a function of the machine member's ability to track a deceleration command, which ability varies with changes in the position of the machine member and the load force acting thereon. To reduce the oscillation, a command that controls operation of the hydraulic actuator is filtered using a filter function that changes with the machine member's load. The load force exerted on the hydraulic actuator which in turn can be designated by fluid pressure that results from the hydraulic actuator. Preferably, the frequency of the filter function is varied inversely with the magnitude of the actuator load force.

REFERENCES:
patent: 4757685 (1988-07-01), Burckhartzmeyer
patent: 5025626 (1991-06-01), Crosser et al.
patent: 5510987 (1996-04-01), Song
patent: 5832730 (1998-11-01), Mizui
patent: 6705079 (2004-03-01), Tabor et al.
patent: 6880332 (2005-04-01), Pfaff et al.
patent: 6883532 (2005-04-01), Rau
patent: 2006/0272325 (2006-12-01), Moon
patent: 2007/0130933 (2007-06-01), Yoshino
patent: 10163066 (2003-07-01), None
patent: 1174384 (2002-01-01), None
patent: 9041428 (1997-02-01), None

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