Marine Vessel Throttle Control for Low-Speed Planing Stability
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Solution Overview
Problem
Marine vessels face difficulties in maintaining a planing state at low speeds, as adjusting the throttle opening angle manually is challenging to keep the hull in a planing state when maneuvered in shallow waters, and excessive or insufficient throttle angles lead to instability.
Innovation Solution
A control system for marine vessels that includes an opening angle adjustment unit for the engine throttle and a controller to judge the hull's planing state, setting a predetermined mode to maintain the planing state by adjusting the throttle opening angle, even when the vessel decelerates, using sensors to monitor speed, pitch angle, and other parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the throttle opening angle is reduced to lower the sailing speed, then the speed of the hull decreases, but the hull cannot maintain its planing state
Solution Approach 1:
The control apparatus continuously monitors sailing speed and automatically adjusts the throttle opening angle to maintain the planing state. When the hull enters the planing state, the system detects this condition and adjusts the throttle to keep the sailing speed within the range that maintains planing, providing real-time feedback control to resolve the contradiction between speed reduction and planing state maintenance.
Solution Approach 2:
The control apparatus enables the marine vessel to automatically regulate its own throttle opening angle based on detected sailing conditions. The system self-adjusts to maintain the planing state without requiring manual intervention, allowing the vessel to sustain low-speed planing by autonomously controlling the engine throttle based on speed sensor feedback.
2Stability of the object's composition
If the throttle opening angle is increased to maintain the planing state, then the planing state is maintained, but the speed of the hull becomes too high
Solution Approach 1:
The control apparatus uses speed sensors to continuously monitor sailing speed and automatically adjusts the throttle opening angle downward when the hull is in the planing state, maintaining the planing condition while preventing excessive speed increase. The feedback mechanism ensures the throttle is controlled to the appropriate degree to sustain planing at the lowest possible speed.
3Ease of operation
If manual adjustment of the throttle opening angle is performed, then the throttle can be controlled, but it is difficult to keep the marine vessel planing at low speed
Solution Approach 1:
The control apparatus enables the marine vessel to automatically regulate its own throttle opening angle based on detected sailing conditions. The system self-adjusts to maintain the planing state without requiring manual intervention, allowing the vessel to sustain low-speed planing by autonomously controlling the engine throttle based on speed sensor feedback.
Solution Approach 2:
The control apparatus replaces manual mechanical throttle adjustment with an automated electronic control system. The system uses speed sensors and control algorithms to automatically adjust the throttle opening angle, substituting the manual mechanical control process with an automated electromechanical system that maintains the planing state more effectively.
Data Source
AI summary
A control system for a marine vessel that has a propulsion device including an engine. The control system has an opening angle adjustment device configured to adjust a throttle opening angle of the engine, and a controller including a computing device and a non-transitory storage medium containing program instructions. The execution of the program instructions by the computing device causes the controller to judge whether or not a hull of the marine vessel has entered a planing state, set a predetermined mode in which the planing state is maintained, and upon determining that the predetermined mode is set and that the hull has entered the planing state, control the opening angle adjustment device to keep the hull in the planing state even when the hull has decelerated.