Vehicle Plug-and-Charge Control via PLC Authentication
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Solution Overview
Problem
Electric vehicle models exported from China face inconvenience when charged in European regions due to the need for repeated card applications and failure to implement the plug and charge function, resulting in a poor user experience.
Innovation Solution
A charging control method that enables automatic bidirectional authentication between vehicles and charging piles using power line carrier (PLC) communication with TLS encryption, allowing the charging pile to automatically enable the charging function upon successful authentication, eliminating the need for card swiping or code scanning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual card application and top-up process is used for charging, then charging functionality can be achieved, but user convenience deteriorates and charging process complexity increases
Solution Approach 1:
The system enables automatic authentication and charging initiation through PLC communication between the vehicle and charging pile. The vehicle automatically sends authentication requests and receives authorization without requiring manual card application or mobile phone operations, allowing the charging process to serve itself
Solution Approach 2:
Digital certificates are pre-configured in both the vehicle and charging pile before charging occurs. The authentication credentials are established in advance, enabling immediate automatic authentication when the vehicle connects to the charging pile, eliminating the need for real-time card application
2Reliability
If repeated card application is required at different charging stations, then charging access is granted, but time consumption increases and user experience deteriorates
Solution Approach 1:
The digital certificate authentication system provides universal access across different charging stations. The same pre-configured digital credentials in the vehicle can authenticate at any charging pile in the network, eliminating the need to apply for new cards at each location
3Extent of automation
If traditional authentication methods are used, then charging control is achieved, but security against illegitimate operators is insufficient
Solution Approach 1:
Digital certificates act as an intermediary authentication mechanism between the vehicle and charging pile. The certificate-based authentication system mediates the trust relationship, providing cryptographic verification that prevents illegitimate operators from gaining unauthorized access
Solution Approach 2:
The patent replaces manual mechanical authentication methods (card swiping, code scanning) with electronic PLC communication and cryptographic certificate verification. This substitution provides more reliable automated authentication with higher security against fraud
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies the charging process, improves user experience, and enhances security by ensuring only authorized vehicles can charge, preventing illegitimate operators from disrupting the charging market and protecting user information.
Implementation Method 1
a communication between the charging pile and the vehicle is a power line carrier (PLC) communication with TLS encryption
Implementation Method 2
a communication between the charging pile and the vehicle is a power line carrier (PLC) communication with TLS encryption
Data Source
AI summary
The disclosure relates to the field of vehicle charging technologies, and specifically provides a charging control method for vehicle plug and charge, which is intended to solve the problem in the prior art that when electric vehicle models exported from China are charged in European regions, a customer needs to apply for and top up a card at a charging operator, and at different charging stations, the customer needs to apply for cards repeatedly, making charging inconvenient. To this end, the charging control method for vehicle plug and charge of the disclosure includes: determining that a vehicle has been physically connected to a charging pile; determining whether bidirectional authentication between the vehicle and the charging pile succeeds; if the authentication succeeds, sending authorization information to the charging pile by a charging operator of the charging pile; and enabling a charging function by the charging pile upon receiving the authorization information. According to the disclosure, the function that enables automatic bidirectional authentication between the vehicle and the charging pile is established, such that when the authentication succeeds, the charging pile enables the charging function, without the need to operate by means of card swiping or code scanning on a mobile phone APP, thereby simplifying the charging process and improving the user experience.