Hull behavior control system and marine vessel
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsRitsu Kadota, Tomoyoshi Koyanagi, Shuichi Moromi, Sadao Miyano
Life of this patent
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Abstract
A hull behavior control system includes a memory and at least one controller coupled to the memory. The at least one controller is configured or programmed to control a propulsion force of the marine vessel using a propeller of the marine vessel, obtain a water surface shape around the marine vessel, estimate movement of a wave based on the water surface shape, and reduce the propulsion force by controlling the propeller when it is determined that an impact force equal to or greater than a threshold value will act on the hull after the hull travels over the wave whose movement has been estimated.
Claims18
A hull behavior control system for controlling behavior of a hull of a marine vessel including a propeller, the hull behavior control system comprising:
- a memory;
- and
- at least one controller coupled to the memory and configured or programmed to:
- control a propulsion force of the marine vessel using the propeller;
- obtain a water surface shape around the marine vessel;
- estimate movement of a wave based on the water surface shape;
- and
- reduce the propulsion force by controlling the propeller when a determination is made that an impact force equal to or greater than a threshold value will act on the hull after the hull travels over the wave whose movement has been estimated;
- wherein
- the at least one controller is configured or programmed to not reduce the propulsion force when it is determined that a reduction of the propulsion force results in the marine vessel going into a wave next to the wave whose movement has been estimated, even when the determination is made that the impact force equal to or greater than the threshold value will act on the hull after the hull travels over the wave whose movement has been estimated.
A hull behavior control system for controlling behavior of a hull of a marine vessel, the hull behavior control system comprising:
- a memory;
- and
- at least one controller coupled to the memory and configured or programmed to:
- control a posture of the hull;
- obtain a water surface shape around the marine vessel;
- estimate movement of a wave based on the obtained water surface shape;
- and
- when it is determined that an impact force equal to or greater than a threshold value will act on the hull after the hull travels over the wave whose movement has been estimated, change the posture of the hull so as to reduce the impact force;
- wherein
- the at least one controller is configured or programmed to not change the posture of the hull when it is determined that a change of the posture of the hull results in the marine vessel going into a wave next to the wave whose movement has been estimated, even when it is determined that the impact force equal to or greater than the threshold value will act on the hull after the hull travels over the wave whose movement has been estimated.
Dependencies are inferred from the claim text.