EV Charger Authentication Using Vehicle MAC Address Payment
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Solution Overview
Problem
Existing electric vehicle charging systems face inconvenience and security risks due to reliance on RFID cards, credit card prepayments, and delayed payment notifications, which hinder customer convenience and satisfaction.
Innovation Solution
A charging system that uses a unique Media Access Control (MAC) address of a vehicle for member authentication, registration, and payment, allowing for plug-and-charge functionality without the need for physical membership cards, enabling efficient and secure charging and payment processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID card or membership number entry is used for authentication, then payment can be performed, but convenience deteriorates when card is lost or not carried, and security risk increases due to potential theft of membership number
Solution Approach 1:
The patent replaces the mechanical RFID card system and manual membership number entry with an automated MAC address recognition system. The charger automatically extracts the MAC address from the vehicle's communication interface, eliminating the need for physical cards or manual input, thus improving both convenience and security
Solution Approach 2:
The vehicle itself provides its identification (MAC address) automatically through its communication interface without requiring user intervention. The system self-identifies the vehicle and retrieves the associated membership information, making the authentication process convenient and secure
2Reliability
If credit card prepayment method is used, then payment can be performed, but convenience deteriorates due to need for prepayment and subsequent cancellation procedures
Solution Approach 1:
The patent extracts the prepayment step from the payment process. By using MAC address-based authentication and stored membership information, the system directly charges the registered payment method after charging completion, eliminating the need for prepayment and subsequent cancellation operations
Solution Approach 2:
The payment method is registered in advance as part of membership registration, but the actual payment transaction occurs after charging completion. This preliminary setup of payment information enables direct charging without requiring prepayment or complex cancellation procedures
3Reliability
If partial cancellation method is used for credit card payment, then payment can be performed, but customer satisfaction deteriorates due to delayed or missing payment notifications
Solution Approach 1:
The patent implements immediate feedback by notifying the user's terminal device of the payment amount and completion status right after charging ends. This real-time notification ensures payment information transparency and eliminates delays or missing notifications associated with partial cancellation methods
4Reliability
If PG company is used for payment processing, then payment can be performed, but system complexity and fees increase
Solution Approach 1:
The patent extracts the payment processing function from external PG companies and implements it directly within the charging system. The charger and management server handle payment processing natively, eliminating the need for intermediaries and reducing system complexity and associated fees
Data Source
AI summary
An electric vehicle charging system provides member authentication, charging, and simple payment. The system improves convenience for a customer by extracting a unique Media Access Control (MAC) address of a vehicle and performing membership registration procedure, member authentication procedure, simple payment, and charging procedure using the extracted MAC address of the vehicle and customer information provided at the time of membership registration. The system increases customer satisfaction by providing a customer with simple payment and a payment amount along with completion of the charging.