EV Charging Authentication Control for Authorized Outlet Access
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Solution Overview
Problem
The widespread use of electric vehicles is hindered by the lack of charging stations, leading to concerns about charging availability at outing destinations. Additionally, allowing non-owners to use private charging devices can result in erroneous usage of unauthorized charging devices.
Innovation Solution
A charging authentication system comprising a user terminal, an authentication unit, and a charging control device that connects to the charging device. The system authenticates the user terminal before allowing the charging device to start charging, ensuring only authorized users can utilize the charging device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If authentication is performed by operating an operation unit provided in a charging device, then the charging device can be controlled to start charging, but it is not suitable for permitting use by others
Solution Approach 1:
The patent introduces a user terminal as an intermediary device between the user and the charging device. The user terminal performs authentication and communicates with the charging control device, which then controls the charging device. This mediator approach allows the charging device to remain simple while enabling remote authentication and authorization for multiple users through the user terminal.
2Ease of operation
If a user terminal transmits a charging start command without authentication, then the operation is simple, but the user may erroneously use a charging device that is not permitted for use
Solution Approach 1:
The patent implements preliminary authentication action before the charging start command is executed. The user terminal performs authentication with the charging control device beforehand, obtaining authorization tokens or credentials. This preliminary action ensures that when the user subsequently transmits the charging start command, the system can verify authorization quickly, maintaining ease of operation while ensuring reliability.
Data Source
AI summary
A communication terminal owned by a user who desires to use a charging device for an electric vehicle transmits a charging start command for the charging device. The communication terminal transmits the charging start command and an authentication key to a charging control device. When the authentication key is received, the charging control device attached to an outlet of the charging device authenticates the communication terminal, and when the authentication succeeds, the charging control device controls the charging device to start charging.