초록 ▼

A hydraulic valve control system that includes a plurality of digitally actuated magnetically-latchable four-way valves that directly or indirectly control the position of a hydraulic actuator. The digitally actuated magnetically-latchable four-way valves are controlled by a controller that can cont

A hydraulic valve control system that includes a plurality of digitally actuated magnetically-latchable four-way valves that directly or indirectly control the position of a hydraulic actuator. The digitally actuated magnetically-latchable four-way valves are controlled by a controller that can control the valves in accordance with a servo routine. The servo routine may include the computation of a plurality of cost functions and the selection of an action that corresponds to the lowest cost.

대표청구항 ▼

[ What is claimed is:] [1.] A fluid driven control valve system adapted to be coupled to a supply line and a drain line and further adapted to control movement of a fluid driven actuator, said fluid driven control valve system comprising:the fluid driven actuator having a first fluid chamber and a s

[ What is claimed is:] [1.] A fluid driven control valve system adapted to be coupled to a supply line and a drain line and further adapted to control movement of a fluid driven actuator, said fluid driven control valve system comprising:the fluid driven actuator having a first fluid chamber and a second fluid chamber;a first digitally actuated magnetically-latchable four-way valve, the first digitally actuated magnetically-latchable four-way valve actuatable to couple the first fluid chamber to the supply line and the second fluid chamber to the drain line;a second digitally actuated magnetically-latchable four-way valve, the second digitally actuated magnetically-latchable four-way valve actuatable to couple the first fluid chamber to the drain line and the second fluid chamber to the supply line; anda controller coupled to the first and second digitally actuated magnetically-latchable four-way valves, the controller operable to selectively actuate at least one of said first and second digitally actuated magnetically-latchable four-way valves.