ISO 15118-2 specifies the communication between battery electric vehicles or plug-in hybrid electric vehicles and the electric vehicle supply equipment.
The pending energy crisis and the necessity to reduce greenhouse gas emissions have led vehicle manufacturers to a very significant effort to reduce the energy consumption of their vehicles. They are presently developing vehicles partly or completely propelled by electric energy. Those vehicles will reduce the dependency on oil, improve global energy efficiency and reduce the total CO2 emissions for road transportation if the electricity is produced from renewable sources.
Much of the standardization work on dimensional and electrical specifications of the charging infrastructure and the vehicle interface is already treated in the relevant ISO or IEC groups. However, the question of information transfer between the EV and the EVSE has not been treated sufficiently. Such communication is necessary for the optimization of energy resources and energy production systems so that vehicles can recharge in the most economical or energy-efficient way.
The purpose of ISO 15118-2 is to detail the communication between an EV (BEV or a PHEV) and an EVSE. Aspects are specified to detect a vehicle in a communication network and enable an Internet Protocol (IP) based communication between EVCC and SECC. ISO 15118-2 defines messages, data model, XML/EXI-based data representation format, and usage of V2GTP, TLS, TCP and IPv6. In addition, it describes how data link layer services can be accessed from a layer 3 perspective.
The text of ISO 15118-2:2014 has been approved in Europe as EN ISO 15118-2:2016 without any changes.
