Road vehicles - Vehicle to grid communication interface - Part 20: 2nd generation network layer and application layer requirements (ISO 15118-20:2022)

This document establishes a technical framework for the communication interface used in electric vehicle charging systems. It focuses specifically on the second generation of grid layer and application layer protocols, ensuring seamless interaction between the vehicle and the charging infrastructure. The text defines the necessary procedures for power transfer negotiation, security authentication, and data exchange required to support advanced charging scenarios.

Designed to harmonize with international technical specifications, this standard facilitates interoperability across different regions and manufacturers. It outlines the specific requirements for managing the physical connection and the logical communication channels during the charging process. By addressing both the physical transport layer and the higher-level application logic, it provides a comprehensive guide for system developers and integration teams.

The content details the message structures, state machines, and error handling mechanisms essential for reliable operation. It serves as a reference for implementing secure and efficient charging solutions that meet modern energy management needs. This resource is intended to support the deployment of standardized interfaces in the broader electric mobility ecosystem.