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US 12,459,628 B2Granted
Marine propulsion system and marine vessel
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorYuji Ikegaya
Life of this patent
Estimating the term…
Abstract
A marine propulsion system includes a main propulsion device, an auxiliary propulsion device including an electric motor to drive an auxiliary thruster, and a controller configured or programmed to perform an automatic marine vessel maneuvering control to direct a bow or a stern of a hull to a target point by rotating the hull and maintain the hull, the bow or the stern of which has been directed to the target point, at the target point by moving the hull in a forward-rearward direction. The controller is configured or programmed to rotate the hull by driving the auxiliary thruster while stopping a main thruster of the main propulsion device in the automatic marine vessel maneuvering control.
Claims20
A marine propulsion system comprising:
- a main propulsion device including a main thruster and operable to rotate in a right-left direction to change a direction of a thrust;
- an auxiliary propulsion device including an electric motor to drive an auxiliary thruster to generate a thrust, operable to rotate in the right-left direction to change a direction of the thrust, and having a maximum output smaller than a maximum output of the main propulsion device;
- and
- a controller configured or programmed to perform an automatic marine vessel maneuvering control to direct a bow or a stern of a hull to a target point by rotating the hull and maintain the hull, the bow or the stern of which has been directed to the target point, at the target point by moving the hull in a forward-rearward direction by the main propulsion device;
- wherein
- the controller is configured or programmed to:
- rotate the hull by driving the auxiliary thruster while stopping the main thruster of the main propulsion device moving the hull in the forward-rearward direction in the automatic marine vessel maneuvering control;
- stop the auxiliary thruster when the stern or the bow has been directed to the target point;
- and
- then move the hull in the forward-rearward direction by the main propulsion device.
7 more elements
A marine propulsion system comprising:
- a main propulsion device including a main thruster and operable to rotate in a right-left direction to change a direction of a thrust;
- an auxiliary propulsion device including an auxiliary thruster and operable to rotate in the right-left direction to change a direction of a thrust and having a maximum output smaller than a maximum output of the main propulsion device;
- and
- a controller configured or programmed to perform an automatic marine vessel maneuvering control to direct a bow or a stern of a hull to a target point by rotating the hull and maintain the hull, the bow or the stern of which has been directed to the target point, at the target point by moving the hull in a forward-rearward direction by the main propulsion device;
- wherein
- the controller is configured or programmed to:
- rotate the hull by driving the auxiliary thruster to generate the thrust from the auxiliary propulsion device while stopping the main thruster of the main propulsion device moving the hull in the forward-rearward direction in the automatic marine vessel maneuvering control;
- stop the auxiliary thruster when the stern or the bow has been directed to the target point;
- and
- then move the hull in the forward-rearward direction by the main propulsion device.
7 more elements
A marine vessel comprising:
- a hull;
- and
- a marine propulsion system provided on or in the hull;
- wherein
- the marine propulsion system includes:
- a main propulsion device including a main thruster and operable to rotate in a right-left direction to change a direction of a thrust;
- an auxiliary propulsion device including an electric motor to drive an auxiliary thruster to generate a thrust, operable to rotate in the right-left direction to change a direction of the thrust, and having a maximum output smaller than a maximum output of the main propulsion device;
- and
- a controller configured or programmed to perform an automatic marine vessel maneuvering control to direct a bow or a stern of the hull to a target point by rotating the hull and maintain the hull, the bow or the stern of which has been directed to the target point, at the target point by moving the hull in a forward-rearward direction by the main propulsion device;
- and
- the controller is configured or programmed to:
- rotate the hull by driving the auxiliary thruster while stopping the main thruster of the main propulsion device moving the hull in the forward-rearward direction in the automatic marine vessel maneuvering control;
- stop the auxiliary thruster when the stern or the bow has been directed to the target point;
- and
- then move the hull in the forward-rearward direction by the main propulsion device.
12 more elements
Dependencies are inferred from the claim text.