Watercraft running system, and watercraft including the same

Patent metadata

Field	Value
Publication number	US-12140969-B2
Application number	US-202217983442-A
Country	US
Kind code	B2
Filing date	Nov 9, 2022
Priority date	Nov 22, 2021
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

A watercraft running system includes a propulsion device, a steering device, a course changing operator, a port-side attitude control plate and a starboard-side attitude control plate, a port-side actuator and a starboard-side actuator, and a controller. The controller is operable in a first control mode in which the steering device is controlled according to the operation of the course changing operator and a second control mode in which the port-side actuator and the starboard-side actuator are controlled according to the operation of the course changing operator. The controller is configured or programmed to prohibit shifting from the first control mode to the second control mode if the steering position of the steering device is not a neutral position, and to permit the shift from the first control mode to the second control mode if the steering position is the neutral position.

First claim

What is claimed is:

1. A watercraft running system comprising:
a propulsion device to apply a propulsive force to a hull of a watercraft;
a steering device to change a course of the watercraft;
a course changing operator operable by a user to change the course of the watercraft;
a port-side attitude control plate and a starboard-side attitude control plate provided on a port side and a starboard side, respectively, of the hull to control an attitude of the hull and to move up and down on the port side and the starboard side, respectively, of the hull;
a port-side actuator and a starboard-side actuator to actuate the port-side attitude control plate and the starboard-side attitude control plate, respectively; and
a controller configured or programmed to include a first control mode in which the steering device is controlled according to the operation of the course changing operator, and a second control mode in which the port-side actuator and the starboard-side actuator are controlled according to the operation of the course changing operator; wherein
the controller is configured or programmed to determine whether or not a steering position of the steering device is a neutral position, to prohibit shifting from the first control mode to the second control mode if the steering position is not the neutral position, and to permit the shift from the first control mode to the second control mode if the steering position is the neutral position.

2. The watercraft running system according to claim 1 , wherein the controller is configured or programmed to perform an error monitoring operation to monitor whether or not an error occurs in a steering operation performed by actuating the steering device in response to the operation of the course changing operator in the first control mode, and, if the error is detected, to effect the shift to the second control mode on condition that the steering position is the neutral position.

3. The watercraft running system according to claim 2 , further comprising:
a notifier to provide information to the user; wherein
the controller is configured or programmed to control the notifier to provide the user with a command to set the steering position of the steering device to the neutral position if the error is detected.

4. The watercraft running system according to claim 3 , wherein the controller is configured or programmed to control the notifier to provide the user with a command to decelerate or stop the watercraft if the error is detected.

5. The watercraft running system according to claim 2 , wherein the controller is configured or programmed to control the propulsion device to decelerate or stop the watercraft if the error is detected.

6. The watercraft running system according to claim 1 , further comprising:
a confirmation operator operable by the user after the user sets the steering position of the steering device to the neutral position; wherein
the controller is configured or programmed to determine that the steering position is the neutral position if the operation of the confirmation operator is detected.

7. The watercraft running system according to claim 1 , further comprising:
a steering position sensor to detect the steering position of the steering device; wherein
the controller is configured or programmed to determine that the steering position is the neutral position if the steering position sensor detects the neutral position.

8. The watercraft running system according to claim 1 , wherein the controller is configured or programmed to control the steering device to perform a neutral position returning operation to guide the steering position of the steering device to the neutral position when the shift from the first control mode to the second control mode is to be performed, and to determine that the steering position is the neutral position, upon completion of the neutral position returning operation.

9. The watercraft running system according to claim 1 , wherein
a helm controller connected to the course changing operator, a steering controller connected to the steering device, and an attitude controller connected to the port-side actuator and the starboard-side actuator are connected to each other in a communicable manner;
the steering device is controlled in the first control mode through communications between the helm controller and the steering controller; and
the port-side actuator and the starboard-side actuator are controlled in the second control mode through communications between the helm controller and the attitude controller.

10. The watercraft running system according to claim 1 , wherein
the controller is configured or programmed to define and function as a helm controller connected to the course changing operator, a steering controller connected to the steering device, and an attitude controller connected to the port-side actuator and the starboard-side actuator, which are all connected to each other in a communicable manner
the steering device is controlled in the first control mode through communications between the helm controller and the steering controller; and
the port-side actuator and the starboard-side actuator are controlled in the second control mode through communications between the helm controller and the attitude controller.

11. The watercraft running system according to claim 1 , wherein the propulsion device is a sole propulsion device attached to the hull.

12. A watercraft comprising:
the watercraft running system according to claim 1 ; and
the hull; wherein
the watercraft running system is provided in the hull.

Assignees

• Yamaha Motor Co Ltd

Inventors

• Inoue Hiroshi

Classifications

• G05D1/49

  Control of attitude, i.e. control of roll, pitch or yaw · CPC title

• B63H25/44 Primary

  Steering or slowing-down by extensible flaps or the like · CPC title

• B63H25/04

  automatic, e.g. reacting to compass · CPC title

• B63B79/30

  for diagnosing, testing or predicting the integrity or performance of vessels · CPC title

• B63H2025/022

  Steering wheels; Posts for steering wheels · CPC title