Method and apparatus for controlling a hydraulic system of a...

Details Method and apparatus for controlling a hydraulic system of a... Method and apparatus for controlling a hydraulic system of a...

2008-03-03

2010-10-19

Lazo, Thomas E (Department: 3745)

Power plants

Pressure fluid source and motor

Methods of operation

C060S459000, C701S050000

Reexamination Certificate

active

07814749

ABSTRACT:
A method for controlling a hydraulic system includes receiving an operator command signal via an operator command input device; receiving a throttle position signal from a throttle; retrieving from a memory a first predetermined correlation between the operator command signal and a corresponding command flow rate; retrieving from the memory a second predetermined correlation between the throttle position signal and a corresponding available flow rate from a hydraulic pump; determining the command flow rate based on the first predetermined correlation and the operator command signal; determining the available flow rate based on the second predetermined correlation and the throttle position signal; and providing a control signal based on the available flow rate and the command flow rate.

REFERENCES:
patent: 4712376 (1987-12-01), Hadank et al.
patent: 5356259 (1994-10-01), Hanamoto et al.
patent: 7225615 (2007-06-01), Bankestad et al.

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