Electric Vessel Powertrain Authentication for Genuine Component Verification
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Solution Overview
Problem
The challenge of using non-compatible components in electric watercraft can lead to battery overheating, fire, and explosion, necessitating a system to ensure genuine components are used.
Innovation Solution
A cryptographic authentication system using private keys and encrypted messages is implemented among powertrain components to verify authenticity, with a vessel control unit monitoring for failed authentication messages and taking corrective actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cryptographic authentication system is implemented to verify genuine components, then safety and reliability are improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary authentication by embedding cryptographic private keys in powertrain components during manufacturing. The vessel control unit receives and verifies authentication messages from components before allowing operation, preventing unauthorized components from being installed or operated. This advance verification ensures only genuine components are used while maintaining systematic control over the authentication process.
2Measurement precision
If authentication message monitoring is performed continuously, then detection precision is improved, but energy consumption increases
Solution Approach 1:
The vessel control unit monitors for authentication messages from powertrain components at periodic intervals rather than continuously. The system checks whether expected authentication messages are received within specific time windows, balancing detection precision with energy efficiency. This periodic monitoring approach ensures unauthorized components are detected while conserving electrical power in the electric watercraft.
Data Source
AI summary
According to embodiments of the present disclosure, various methods, apparatuses, and computer program products for responding to detecting an error associated with one or more powertrain components of an electric vessel are described herein. In some aspects, a vessel control unit monitors a control area network bus for communication from the one or more powertrain components and determines whether there was a failure to receive during a particular interval, an authentication message from a first component of the one or more powertrain components of the electric vessel. In response to determining that there was a failure to receive, during the particular interval, the authentication message from the first component, the vessel control unit performs a first set of actions including indicating to a user that there is an error associated with the first component.