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公开(公告)号：US11560209B2
公开(公告)日：2023-01-24
申请号：US17184632
申请日：2021-02-25
发明人： Yuji Ikegaya
摘要： A drive source switching system for a marine propulsion device includes a first drive source, a second drive source, a propeller shaft, a first driving member, a second driving member, a first driven member, and a second driven member that are movable in an axial direction of the propeller shaft, and a controller. The first driven member transmits a drive force generated by the first drive source to the propeller shaft when engaged with the first driving member. The second driven member transmits a drive force generated by the second drive source to the propeller shaft when engaged with the second driving member. When the controller moves the first driven member that is not engaged with the first driving member toward the first driving member, the controller moves the first driven member back when the first driven member fails to be engaged with the first driving member.
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公开(公告)号：US11447223B2
公开(公告)日：2022-09-20
申请号：US17203838
申请日：2021-03-17
发明人： Yuji Ikegaya
摘要： A control device for a battery of a marine vessel recovers a power storage amount of a chargeable lithium ion battery while protecting the same. When an acquired power storage amount of the lithium ion battery becomes equal to or less than a first predetermined power storage amount, a switch to connect the lithium ion battery and a line or a load is turned off. While the switch is off, as an electric power balance on the line, a power inflow amount, a first power outflow amount, and a second power outflow amount are acquired. Based on the electric power balance acquired while the switch is off, whether a chargeable condition in which the lithium ion battery is chargeable is satisfied is determined. When the chargeable condition is satisfied, the switch is turned on.
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公开(公告)号：US11987338B2
公开(公告)日：2024-05-21
申请号：US17467692
申请日：2021-09-07
发明人： Morihiko Nanjo , Noriyuki Oba , Yuji Ikegaya
CPC分类号： B63H25/02 , B63B79/40 , B63H21/17 , B63H21/213 , B63H25/42 , B63H25/52 , G05D1/0016 , B63H2021/216 , B63H2025/028
摘要： A marine vessel maneuvering system includes a controller configured or programmed to control a steering speed to be a first steering speed when an operator is moved from a neutral position, and to control the steering speed to be a second steering speed that is lower than the first steering speed when the operator is returned to the neutral position.
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公开(公告)号：US12091148B2
公开(公告)日：2024-09-17
申请号：US17547281
申请日：2021-12-10
发明人： Yuji Ikegaya
CPC分类号： B63H25/42 , B63H20/12 , B63H2020/003
摘要： In a system for controlling a watercraft, when a first mode is selected, a controller determines a route on which a single or a plurality of specified spots including a destination are located, and controls a marine propulsion device such that the watercraft moves along the route with a bow thereof being kept oriented in a predetermined cardinal direction. When a second mode is selected, the controller controls the marine propulsion device such that the bow of the watercraft is kept oriented in the predetermined cardinal direction without determining the route. The controller obtains a position of the watercraft. In the first mode, the controller determines whether or not the watercraft has passed through the destination. When the watercraft has passed through the destination in the first mode, the controller performs a mode switching from the first mode to the second mode and controls the marine propulsion device in the second mode.
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公开(公告)号：US12077272B2
公开(公告)日：2024-09-03
申请号：US17518673
申请日：2021-11-04
发明人： Yuji Ikegaya
摘要： A joystick outputs an operating signal indicating a tilt amount and a twist direction of the joystick. A controller receives the operating signal and controls a marine propulsion device to output a thrust having a magnitude depending on the tilt amount. The controller changes a rudder angle of the marine propulsion device such that a watercraft turns in a direction corresponding to the twist direction. The controller reduces a speed of changing the rudder angle with an increase in the magnitude of the thrust.
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6.发明授权公开(公告)号：US11993357B2
公开(公告)日：2024-05-28
申请号：US17669401
申请日：2022-02-11
发明人： Yuji Ikegaya
CPC分类号： B63H20/12 , B63B79/40 , B63H25/42 , G05D1/0206
摘要： A propulsion control system for a marine vessel includes a memory and a controller coupled to the memory. The controller is configured or programmed to, while performing dynamic positioning control of the marine vessel or in a case in which the marine vessel has changed to a mode in which the marine vessel is kept at a certain location, perform deceleration control to reduce a bow direction speed of the marine vessel. Alternatively, the controller is configured or programmed to, in a case in which the marine vessel has changed to a mode in which the marine vessel moves along a predetermined route, when the marine vessel deviates from the predetermined route in a bow direction of the marine vessel, perform deceleration control to prevent the marine vessel from moving in the bow direction.
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7.发明授权公开(公告)号：US11731744B2
公开(公告)日：2023-08-22
申请号：US17203844
申请日：2021-03-17
发明人： Yuji Ikegaya
CPC分类号： B63B79/40 , B63H1/14 , B63H20/00 , F02D41/0002 , G07C5/0808 , G07C5/0816
摘要： A control system for a marine propulsion device includes a propeller driven by either an engine or a motor. The control system includes a first memory to store first information to identify whether the control system has shut down normally or abnormally even during a reset period of the control system, a second memory to store second information indicating control states of the engine and the motor even during the reset period of the control system, and a controller configured or programmed to start controlling the engine and the motor, based on the second information stored in the second memory, when the first information stored in the first memory indicates an abnormal shutdown of the control system at a startup of the control system.
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公开(公告)号：US10894589B1
公开(公告)日：2021-01-19
申请号：US16827847
申请日：2020-03-24
发明人： Makoto Ito , Kohei Yamaguchi , Yuji Ikegaya
摘要： A ship maneuvering system includes first and second propulsion devices, a shift actuator, and a controller. The shift actuator switches a shift state of each of the propulsion devices. The controller causes the shift actuator of one of the first and second propulsion devices to execute intermittent control during low-speed navigation of the ship. The intermittent control intermittently switches the shift state to a shift-in state and a shift-out state.
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公开(公告)号：US12084161B2
公开(公告)日：2024-09-10
申请号：US17523980
申请日：2021-11-11
发明人： Yuki Morimoto , Yuji Ikegaya , Yoshikazu Nakayasu
CPC分类号： B63H5/08 , B63H5/125 , B63H21/17 , B63H21/21 , B63H25/02 , B63H25/42 , B63H2020/003 , B63H2021/216 , B63H2025/425
摘要： A controller for a watercraft controls first and second marine propulsion devices to start moving the watercraft by setting a first default angle, a second default angle, and a default thrust ratio as a first target rudder angle, a second target rudder angle, and a target thrust ratio respectively when a desired motion of the watercraft is straight sideways movement. The controller determines at least one of a first correcting angle, a second correcting angle, and a correcting thrust ratio to reduce an error between the straight sideways movement of the watercraft and an actual motion of the watercraft. The controller corrects the first target rudder angle, the second target rudder angle, and the target thrust ratio with the first correcting angle, the second correcting angle, and the correcting thrust ratio, respectively. The controller repeatedly detects the error and repeatedly updates the correcting angles and the correcting thrust ratio.
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10.发明授权公开(公告)号：US11987339B1
公开(公告)日：2024-05-21
申请号：US17120520
申请日：2020-12-14
发明人： Yuji Ikegaya
CPC分类号： B63H25/04 , B63H25/42 , B63H2025/022 , B63H2025/026
摘要： A steering control system of a marine vessel includes a controller configured or programmed to perform at least one of a control to automatically steer the marine vessel or a control to automatically change a propulsive force of a propulsion device in an automatic marine vessel maneuvering mode during movement of the marine vessel, and an operator for the marine vessel to perform a predetermined operation. The controller is configured or programmed to cancel the automatic marine vessel maneuvering mode based on an operation performed on the operator by a vessel operator to perform the predetermined operation during the movement of the marine vessel in the automatic marine vessel maneuvering mode.
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