EV Charging Station Plug-Out Timer Override Mechanism
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Solution Overview
Problem
Electric vehicle charging stations terminate charging sessions when users attempt to override delayed charging by unplugging and replugging the charging cord, requiring re-authentication and disrupting the charging process.
Innovation Solution
Implementing a plug-out timer and a plug-in timer at the charging station to allow users to override delayed charging without session termination, enabling immediate charging without re-authentication if the cord is unplugged and reinserted within specified time frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the charging station terminates the charging session when the cord is unplugged, then the charging session security is improved, but the user convenience deteriorates
Solution Approach 1:
The charging station initiates a plug-out timer before actually terminating the charging session. This preliminary action allows the system to anticipate the user's intent to override delayed charging while maintaining security protocols. The timer creates a buffer period where the session remains active, enabling the override function to work seamlessly without compromising authentication security.
2Reliability
If the charging station requires re-authentication after cord unplug, then the authorization security is improved, but the operational efficiency deteriorates
Solution Approach 1:
The system dynamically adjusts its authentication requirements based on the timing and context of the cord unplug event. If the plug-out timer and plug-in timer are both active (indicating an override attempt), the system maintains the original authorization without requiring re-authentication. This dynamic approach preserves security while enabling efficient override operations when users legitimately need to change charging timing.
3Adaptability or versatility
If the charging station implements timer mechanisms to support override, then the user flexibility is improved, but the device complexity increases
Solution Approach 1:
The override functionality is segmented into two distinct timer mechanisms: a plug-out timer that starts when the cord is removed, and a plug-in timer that starts when the cord is reinserted. This segmentation allows each timer to handle specific aspects of the override process independently, making the overall system more manageable and easier to implement while providing comprehensive user flexibility for delayed charging overrides.
Data Source
AI summary
An electric vehicle charging station that supports delayed charging overrides. In one embodiment, to support delayed charging override in an electric vehicle charging station that requires authorization, after authentication is successful (e.g., the electric vehicle operator is authorized) and the electric vehicle is detected (e.g., the charging cord has been plugged into the charging port of the electric vehicle), the charging station begins a plug out timer for the electric vehicle operator to unplug the charging cord from the charging port of the electric vehicle and then begins a plug-in timer for the electric vehicle operator to plug the charging cord back into the charging port of the electric vehicle. If the electric vehicle operator does so within the periods of the timers, the charging session will not end and the delayed charging will be overridden.