Collision-avoidance maneuvering method in congested water and collision-avoidance maneuvering system for single-propeller twin-rudder ship
US11915595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2019 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Jul 12, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H2025/066
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In collision-avoidance maneuvering in congested waters, an own ship is decelerated by astern power. The own ship is continuously navigated on a current target course with a propulsion propeller always rotated forward at the stern of the own ship. The astern power is generated as the propulsion of a propeller slipstream with rudder angles formed at a pair of right and left high-lift rudders disposed behind the propulsion propeller. In the decelerating maneuvering, the rudder angles formed at the high-lift rudders are controlled within a range from a rudder angle for applying a maximum propeller slipstream as the astern power to a rudder angle for eliminating the ahead power of the propeller slipstream, and the deceleration of the own ship is controlled by changing the astern power according to the rudder angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.