This SAE Information Report J2931/6 establishes the requirements for physical and data link layer communications between Plug-in Electric Vehicles (PEV) and the Electric Vehicle Supply Equipment (EVSE).
SAE J2931/6-2022 history
2022SAE J2931/6-2022 Signaling Communication for Wirelessly Charged Electric Vehicles
2015SAE J2931/6-2015 Signaling Communication for Wirelessly Charged Electric Vehicles