Marine Drive Unit Configuration for Vessel Propulsion Control
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Solution Overview
Problem
Existing marine vessel propulsion systems do not effectively adjust the position of propulsion devices based on the vessel's operation mode, limiting the ability to control the vessel's speed and direction efficiently.
Innovation Solution
A drive controller that receives an operation mode input, positions marine drive units in a first configuration, identifies when throttles are in the same drive position, and repositions them to a second configuration to optimize propulsion direction relative to the vessel's center line, allowing for faster forward or reverse movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If marine drive units are positioned in a fixed configuration for steering control, then steering capability is maintained, but the ability to optimize propulsion direction based on operation mode is limited
Solution Approach 1:
The marine drive units are configured to dynamically change position between a first configuration (for steering) and a second configuration (for optimized propulsion) based on the operation mode and throttle position. This dynamic repositioning allows the system to adapt to different operational requirements while maintaining control capability.
Solution Approach 2:
The marine drive units serve multiple functions by being able to operate in different configurations: they can provide steering control in the first configuration and optimized forward/reverse propulsion in the second configuration. This multi-functionality allows a single system to handle both maneuvering and efficient propulsion without requiring separate dedicated systems.
2Productivity
If marine drive units are repositioned to optimize propulsion direction, then speed and fuel efficiency improve, but response time and maneuverability may be affected
Solution Approach 1:
The system proactively repositions the marine drive units to the second configuration when both throttles are in the same drive position, anticipating the need for optimized propulsion. This preliminary action ensures the units are already in the optimal position when full propulsion power is required, minimizing response time while maintaining efficiency.
Solution Approach 2:
The control system continuously monitors the position of both throttles and automatically triggers repositioning when it detects that both throttles are in the same drive position. This feedback mechanism ensures the system responds appropriately to operational conditions, optimizing propulsion efficiency without requiring manual intervention while maintaining rapid response capability.
Data Source
AI summary
A marine vessel may be controlled by a device receiving an input to place a drive system of a marine vessel into an operation mode; positioning two or more marine drive units of the drive system in a first configuration based on the input; identifying, and while the drive system is in the operation mode, that respective throttles associated with the two or more marine drive units are in a same drive position; and repositioning the two or more marine drive units to a second configuration based on identifying that the respective throttles are in the same drive position.