Marine Vessel Control Standby for Reliable Engine Start
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Solution Overview
Problem
The existing marine vessel control systems face challenges in reliably determining the start permission condition due to communication delays, leading to excessive starting loads and unreliable engine start processes, especially when information necessary for determining the start condition has not been acquired promptly.
Innovation Solution
A marine vessel control apparatus with a main control unit that stands by until necessary information for determining the start permission condition is acquired, including authentication and engine speed information, before providing an engine start command, thereby ensuring the condition is met before initiating the start process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the start permission condition is determined immediately after power-on, then the engine start process is faster, but the determination may be inaccurate due to communication delays causing excessive starting loads
Solution Approach 1:
The main control unit stands by and waits for necessary information (authentication result and engine speed information) to be acquired from the propulsion device control unit before determining the start permission condition. This preliminary waiting action ensures that all required data is available and accurate before making the start permission determination, preventing premature decisions based on incomplete information.
2Reliability
If the main control unit waits for all information before determining start permission, then determination accuracy is improved, but the engine start process is delayed
Solution Approach 1:
The system performs preliminary actions by acquiring authentication results and engine speed information in advance before the start permission determination. The main control unit is configured to stand by until these necessary information are acquired, ensuring that the determination is made only when complete and accurate data is available, thus balancing reliability with timely execution.
Data Source
AI summary
A marine vessel control apparatus is arranged and programmed to control a propulsion device including an engine and a propulsion device control unit. The marine vessel control apparatus includes a starter switch arranged to be operated by an operator to start the engine, and a main control unit arranged and programmed to receive a start command from the starter switch and to communicate with the propulsion device control unit. The main control unit includes a stand-by unit arranged to, when receiving the start command from the starter switch, stand by until information for determination of a predetermined start permission condition is acquired from the propulsion device control unit, a determining unit arranged to, after the information is acquired, determine if the start permission condition is met, and an engine start command unit arranged to, if the start permission condition is met, provide an engine start command to the propulsion device control unit.