公开(公告)号：US12234002B2

公开(公告)日：2025-02-25

申请号：US17616316

申请日：2020-06-05

Applicant: NHK SPRING Co., Ltd.

Inventor： Masato Shirao ,  Marino Akita ,  Takafumi Oshima

IPC: B63H21/21 ,  B63H25/42

Abstract: A ship propulsion device controller controls a plurality of ship propulsion devices disposed on a rear portion of a hull of a ship. The ship includes an operation unit configured to operate the ship propulsion devices. The operation unit is able to be positioned at a first position where the ship propulsion devices do not generate propulsion forces for the ship and a second position where the ship propulsion devices generate propulsion forces for moving the ship in a right direction, a right-forward direction, or a right-backward direction or a third position where the ship propulsion devices generate a propulsion force for moving the ship in a left direction, a left-forward direction, or a left-backward direction. When the operation unit is moved from the first position to the second position and maintained at the second position, the ship propulsion devices generate a clockwise rotating moment in the ship during a first period from a first timing when the operation unit is moved to the second position to a second timing and do not to generate the clockwise rotating moment in the ship during a second period after the second timing.

公开(公告)号：US11958583B2

公开(公告)日：2024-04-16

申请号：US17616297

申请日：2020-06-05

Applicant: NHK SPRING Co., Ltd.

Inventor： Masato Shirao ,  Marino Akita ,  Takafumi Oshima

IPC: B63H25/42 ,  B63H25/02 ,  B63H20/00

CPC classification number: B63H25/42 ,  B63H25/02 ,  B63H2020/003 ,  B63H2025/026

Abstract: This automatic setting device for automatically setting control devices for a plurality of ship propulsion apparatuses for generating ship propulsion forces is provided with: an input operation setting unit that sets an input operation for a ship; a target behavior acquisition unit that acquires a target behavior of the ship corresponding to the input operation set by the input operation setting unit; a ship information acquisition unit that acquires ship information about the position and/or the bearing of the ship; an actual behavior calculation unit that calculates the actual behavior of the ship on the basis of the ship information acquired by the ship information acquisition unit; and a propulsion force setting unit that sets the magnitudes and the directions of the propulsion forces generated by the respective ship propulsion apparatuses on the basis of the actual behavior of the ship acquired by the actual behavior calculation unit and the target behavior of the ship acquired by the target behavior acquisition unit.

公开(公告)号：US12275508B2

公开(公告)日：2025-04-15

申请号：US18008817

申请日：2021-06-08

Applicant: NHK SPRING Co., Ltd.

Inventor： Masato Shirao ,  Marino Akita ,  Takafumi Oshima

IPC: B63C9/00 ,  B63H21/21 ,  G05D1/00

Abstract: A watercraft control system includes a watercraft and a communication device. The communication device includes a communication unit configured to transmit information indicating a location of the communication device to the watercraft. The watercraft includes a communication unit configured to receive the information indicating the location of the communication device and a difference calculation unit configured to calculate a difference between the location of the communication device and a location of the watercraft.

公开(公告)号：US11834143B2

公开(公告)日：2023-12-05

申请号：US17422658

申请日：2020-02-14

Applicant: NHK SPRING Co., Ltd.

Inventor： Masato Shirao ,  Marino Akita ,  Takafumi Oshima

IPC: B63H20/12 ,  B63H21/21 ,  B63H25/02 ,  B63H25/42 ,  B63H20/00

CPC classification number: B63H20/12 ,  B63H21/21 ,  B63H25/02 ,  B63H25/42 ,  B63H2020/003 ,  B63H2025/026

Abstract: A control device for an outboard motor controls a plurality of outboard motors included in a ship. Each outboard motor includes a propulsion unit and a steering actuator. The ship includes an operation unit that operates the steering actuator and the propulsion unit. The operation unit can be positioned at a first position at which the outboard motors do not generate a propulsion force for the ship, a second position at which the outboard motors generate a propulsion force for moving the ship in a leftward-rightward direction, and a third position at which the outboard motors generate a propulsion force for moving the ship in an oblique direction that forms an acute angle with the leftward-rightward direction. A forward-backward direction component of a propulsion force in the oblique direction which is generated by the outboard motors.