This International Standard specifies the communication between battery electric vehicles (BEV) or plug-in hybrid electric vehicles (PHEV) and the supply equipment (EVSE). It covers the overall information exchange between all actors involved in the electrical energy exchange. This International Standard is applicable for manually connected conductive charging.
The purpose of this Part of ISO/IEC 15118 is the description of terms and definitions, general requirements and use cases as basis for the other parts of this International Standard. ISO/IEC 15118-1 provides a general overview and a common understanding of aspects influencing the charge process, the payment and the load levelling. It specifies furthermore the initial start-up process and security issues for charging.
This International Standard does not define the vehicle internal communication between battery and charging equipment and the communication of the supply equipment to other actors and equipment.

NOTE Vehicle internal communication and communication from the EVSE to other actors beside the vehicle may
address as triggers in the use cases or as actors in the security requirements. Related hardware issues as plugs and cables are defined in other standards.