VESSEL AZIMUTH CONTROL APPARATUS AND AZIMUTH CONTROL METHOD
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United States of America Patent
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Issued Date -
Dec 21, 2023
app pub date -
Apr 20, 2023
filing date -
Jun 15, 2022
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Abstract
The vessel azimuth control apparatus has
- an azimuth control unit that outputs a steering-angle command signal for making a vessel turn to an azimuth to which the vessel should travel, based on an azimuth command signal generated by an azimuth command generation unit, a yaw-angle signal, and a yaw-angular-velocity signal,a steering-angle control unit that controls a rudder based on the steering-angle command signal, anda control gain adjustment unit that has a calculation feasibility determination unit for determining feasibility of calculation of frequency responses, based on the yaw-angle signal and the yaw-angular-velocity signal, and that calculates respective frequency responses of the yaw-angle signal and the yaw-angular-velocity signal for the steering-angle signal, when the calculation feasibility determination unit determines that calculation of frequency response are feasible, and then adjusts a control gain of the azimuth control unit.
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