PID control device, PID control method, and PID control program
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 11, 2020
Grant Date -
Aug 2, 2018
app pub date -
Oct 16, 2017
filing date -
Oct 16, 2017
priority date (Note) -
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Abstract
A technique capable of shortening a period in which value of a PID parameter is outside of an appropriate range is provided. A measured value acquisition functional unit processes a sensing signal of a sensor that measures a barrel and acquires a measured value of the barrel. A storage unit stores a target value of the barrel and a PID parameter. An operation amount calculation functional unit calculates an amount of operation using the PID parameter and a difference between the measured value and the target value. A first output unit and a second output unit output the amount of operation. A first updating functional unit updates the PID parameter through a first update process when the variation range is greater than a first range, and a second updating functional unit updates the PID parameter through a second update process when the variation range is less than a second range.
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