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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5653155-A, on 5 August 1997. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000003247

Method and apparatus for single lever control of multiple actuators

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Classification
Industrial Motion & Power Transmission › Fluid Power
Original source
US-5653155-A, the United States Patent and Trademark Office, 5 August 1997
Document SHA-256
7d9a5174562cda76215e0b762e5dc8b80aa0c9b9295ca38ce65356ed04199e4b

A method and apparatus for providing control of multiple actuators with a single control lever is provided. The method and apparatus is adapted for use in an electro-hydraulic system having a microprocessor, multiple actuators, respective electro-hydraulic directional control valves for each actuator, and individual control levers operatively associated with the microprocessor for controlling movement of the respective electro-hydraulic directional control valves. The method and apparatus is accomplished by providing a switch on each of the control levers that is operational to condition the microprocessor to direct simultaneous signals to the respective electro-hydraulic directional control valves to control each of the multiple actuators in proportion to the degree of movement of the one actuator when the switch thereon is depressed. The method and apparatus also includes a variable gain control that is selectively operational to vary the gain or response of the respective actuators relative to the degree of movement of the respective control levers.

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Abstract

A method and apparatus for providing control of multiple actuators with a single control lever is provided. The method and apparatus is adapted for use in an electro-hydraulic system having a microprocessor, multiple actuators, respective electro-hydraulic directional control valves for each actuator, and individual control levers operatively associated with the microprocessor for controlling movement of the respective electro-hydraulic directional control valves. The method and apparatus is accomplished by providing a switch on each of the control levers that is operational to condition the microprocessor to direct simultaneous signals to the respective electro-hydraulic directional control valves to control each of the multiple actuators in proportion to the degree of movement of the one actuator when the switch thereon is depressed. The method and apparatus also includes a variable gain control that is selectively operational to vary the gain or response of the respective actuators relative to the degree of movement of the respective control levers.

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Citation

OpenTechnical Publication OT-2026-000003247, “Method and apparatus for single lever control of multiple actuators,” published September 15, 2026 at 19:56:04 UTC, https://opentechnical.org/p/OT-2026-000003247.

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