Method of controlling a hydraulic actuator, a hydraulic actuator, a hydraulic system and a working machine
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United States of America
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Nov 19, 2024
Grant Date -
Sep 22, 2022
app pub date -
Aug 30, 2019
filing date -
Aug 30, 2019
priority date (Note) -
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Abstract
A method of controlling a hydraulic actuator, wherein the hydraulic actuator includes a linear double-acting output member, and at least three working chambers in fluid connection with the output member, the working chambers having respective effective areas with a non-binary relationship; wherein the method includes selectively fluidly connecting each working chamber to either a high-pressure side or a low-pressure side to provide a plurality of discrete pressurization states of the hydraulic actuator; determining at least one of the pressurization states as a prevented pressurization state; and transitioning between a plurality of allowed pressurization states among the pressurization states while preventing transition to the at least one prevented pressurization state. A hydraulic actuator and a hydraulic system are also provided.
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