METHOD OF CONTROLLING A HYDRAULIC ACTUATOR DRIVE, CONTROLLER AND ACTUATOR DRIVE CONTROLLER
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United States of America
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Feb 22, 2018
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Feb 22, 2018
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Abstract
A method controls a hydraulic actuator drive that has an actuator and the position of the actuator is set by at least one electrohydraulic proportional valve that has at least one electrical input and at least one hydraulic output. First, the position of the actuator is detected and an actual position value is generated therefrom. Second, a target position value is specified in dependence on a default for a desired position of the actuator and a target/actual value difference is corrected by the at least one electrohydraulic proportional valve, so that the actuator assumes a position corresponding to the target position value. The method is characterized in that the target position value is also varied if the default remains unchanged for a desired position of the actuator.
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