Small Watercraft Controller Synchronization for Component Replacement
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Solution Overview
Problem
In small watercraft, discrepancies can arise between control states stored in the controller and input devices, leading to potential engine misoperation when these components are replaced or updated.
Innovation Solution
The implementation of a system with a controller and two storage units that synchronize control information, ensuring that the engine's control state is consistently reflected across both the display and the Engine Control Unit, thereby correcting any discrepancies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the controller or input is replaced with another, then the device can be updated or repaired, but a discrepancy between the control state stored in the controller and the control state stored in the input may occur
Solution Approach 1:
The controller reads control state information from both the input device and its own storage, compares the two values, and automatically corrects any discrepancies by writing the appropriate value to its storage. This feedback mechanism ensures consistency between the input device and controller after component replacement, resolving the reliability issue while maintaining ease of repair.
Solution Approach 2:
The controller performs self-diagnosis and self-correction by automatically detecting discrepancies between the input device's control state and its stored control state, then correcting its own storage without external intervention. This allows the system to maintain reliability after component replacement while preserving the ease of repair benefit.
2Adaptability or versatility
If control state information is stored in both the controller and input device, then the system can operate independently in each component, but discrepancies may arise when components are replaced
Solution Approach 1:
The system uses feedback comparison between the input device's control state information and the controller's stored control state information to detect discrepancies. When a mismatch is detected, the controller automatically corrects its storage to match the input device, preventing information loss while maintaining component independence for adaptability.
Solution Approach 2:
The controller copies the control state information from the input device to its own storage when a discrepancy is detected. This copying mechanism ensures that the controller maintains an accurate copy of the control state without compromising the independence of either component, thus preventing information loss while preserving adaptability.
Data Source
AI summary
A small watercraft includes an input, a second storage, and a controller. The input receives an operation to switch the small watercraft into one of a plurality of control states, and includes a first storage that stores first control information indicating the one of the plurality of control states associated with the operation received by the input. The second storage stores second control information indicating one of the plurality of control states. The controller is able to write to one of the first and second storages. The input is supplied with electric power by supplying the controller with the electric power. When the one of the plurality of control states indicated by the first control information is different from the one of the plurality of control states indicated by the second control information, the controller causes one of the first control information and the second control information stored in the one of the first and second storages to match the other of the first control information and the second control information stored in the other of the first and second storages.