ISO 15118


ISO 15118 Road vehicles -- Vehicle to grid communication interface is an international standard defining a vehicle to grid communication interface for bi-directional charging/discharging of electric vehicles.

Overview

ISO 15118 is one of the International Electrotechnical Commission's group of standards for electric road vehicles and electric industrial trucks, and is the responsibility of Joint Working Group 1 of IEC Technical Committee 69 together with subcommittee 31 of the International Organization for Standardization's Technical Committee 22 on road vehicles. The user-convenient and secure Plug & Charge feature that comes with ISO 15118 enables the electric vehicle to automatically identify and authorize itself to the charging station on behalf of the driver to receive energy for recharging its battery. The only action required by the driver is to plug the charging cable into the EV and/or charging station. Some of the networks using the standard are Electrify America.

Standard documents

ISO 15118 consists of the following parts, detailed in separate standard documents:
The ISO 15118 is also used as communication protocol for charging of heavy duty vehicles as:
When using the ISO 15118 in a commercial operation the use of WLAN must be considered carefully since there is no way to guarantee operation uptime when using wireless communication based on WLAN. For these situations the same protocol as for passenger car charging can be used.