Wireless EV Charging Station Using Transponder for Accurate Billing
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Solution Overview
Problem
Current systems lack the ability to accurately identify electric vehicles for charging transactions and recognize revenue for electrical charging power delivered, as they are not compatible with mobile electric loads and do not provide unique identifiers for electric vehicles.
Innovation Solution
A vehicle charging station that communicatively couples with electric vehicles via a wireless network and a connector, receiving a unique identifier to determine associated accounts and meter electrical charging power, enabling accurate billing and revenue recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional electricity delivery systems use encoded magnetic strips on cards for metering, then purchase information can be transferred between utility billing office and metering devices, but such systems cannot identify mobile electric loads like electric vehicles for accurate charging transactions
Solution Approach 1:
The system uses a universal transponder that can serve multiple functions: identifying electric vehicles, transferring account information, and enabling charging transactions. This single device replaces the need for vehicle-specific identification systems and works across different charging stations, providing both mobile load compatibility and accurate identification.
Solution Approach 2:
The transponder acts as an intermediary carrier that holds and transfers account information between the vehicle, charging station, and utility billing system. This mediator enables accurate identification and measurement of charging power delivery to mobile vehicles without requiring direct complex communication between all system components.
2Productivity
If RFID cards are used for toll collection in moving vehicles, then automatic deduction from accounts is achieved, but such systems lack the capability to meter electrical charging power delivered to specific electric vehicles
Solution Approach 1:
The system merges the automatic identification function (like RFID toll systems) with the charging power metering function into a single integrated process. The transponder not only identifies the vehicle for automatic account deduction but also tracks and transfers detailed charging power delivery information, combining both functionalities without losing data.
3Loss of information
If remote monitoring systems provide wireless communication between electric meters and site controllers, then electricity consumption data can be transmitted, but such systems are designed for stationary sites and cannot identify specific mobile electric vehicles
Solution Approach 1:
The system transitions from static site-based monitoring to dynamic vehicle-based monitoring. The transponder moves with the vehicle, enabling continuous identification and data transmission as the vehicle moves between different charging stations, making the monitoring system adaptable to mobile loads while maintaining complete consumption data tracking.
Data Source
AI summary
A vehicle charging station for use in transmitting charging power to an electric vehicle for use in charging the vehicle is configured to communicatively couple to the electric vehicle via a network connection to a wireless network provider and electrically couple to the electric vehicle via a connector. Vehicle charging station is further configured to receive a unique identifier from the electric vehicle via the network connection, deliver a quantity of electrical charging power to the electric vehicle via the connector, and meter the quantity of electrical charging power delivered to the electric vehicle.