Consistency Testing System of DC Pile Protocol for Electric Vehicles

Direct current (DC) charging pile is a key supporting facility for electric vehicles, and its agreement consistency is of great significance for ensuring charging safety, improving user experience and promoting industrial standardization development. The purpose of this article is to study the consistency test system of DC pile protocol for electric vehicles, and to ensure that the communication protocol between DC pile and electric vehicles strictly follows the standards and specifications by constructing a comprehensive and efficient test scheme. In the research process, firstly, the DC pile protocol of electric vehicle is analyzed, and the key functional modules and communication flow of the protocol are defined. Then, a layered test system is designed, including data acquisition layer, protocol analysis layer, test execution layer and result analysis layer. The system uses high-precision data acquisition equipment to obtain the communication data between DC piles and vehicles, uses advanced protocol analysis algorithm to process the data, and comprehensively tests the protocol consistency of DC piles based on a large quantity of well-designed test cases. The results show that the coverage rate of the test system reaches 95 %, the accuracy reaches 95 %, and the average execution time is 3.75 seconds, and there is no crash within 240 hours of continuous operation, only a few exceptions appear, showing excellent performance.