Electric vehicle wireless power transfer (WPT) systems – Part 2: Specific requirements for MF-WPT system communication and activities

This document outlines the communication protocols and operational requirements for wireless power transfer systems designed for electric vehicles, specifically focusing on magnetic field-based transmission. It serves as a technical framework to ensure interoperability, safety, and efficiency within the ecosystem of wireless charging infrastructure. The content covers data exchange mechanisms between the vehicle and the charging equipment, detailing the necessary signaling sequences and error handling procedures. Furthermore, it establishes guidelines for system state management, including alignment detection, power level negotiation, and session termination. These specifications aim to standardize the interaction between components, facilitating a seamless experience for users while maintaining robust performance under various operating conditions. By defining clear parameters for system behavior, the text supports the development of compatible hardware and software solutions across different manufacturers. It addresses critical aspects of control and data link management essential for the reliable transfer of energy without physical connectors.