New SAE International standard defines electric vehicle charging coupler


Warrendale, PA, U.S.A. — (METERING.COM) — January 20, 2010 – SAE International, a global association of engineers and related technical experts in the aerospace, automotive and commercial vehicle industries, has released a standard that provides a standard interface between plug-in hybrid and battery electric vehicles, and electrical charging systems.

The Standard J1772, “SAE Electric Vehicle Conductive Charge Coupler,” spells out the general physical, electrical and performance requirements to facilitate charging of electric and plug-in hybrid electric vehicles in North America. In particular the standard defines a common electric vehicle and supply equipment charging method, and the requirements for the coupler, which consists of a connector and vehicle inlet.

SAE J1772 was developed by the SAE Hybrid J1772 Task Force in cooperation with major automotive OEMs and suppliers, charging equipment manufacturers, national labs, utility companies, universities and standards organizations from North America, Europe and Asia.

According to Gery Kissel, chair of the SAE Hybrid Task Force, consistency and reliability are key goals of the new standard.

“By standardizing, you’re reducing costs and allowing everyone to use the same connector. All of the charging equipment you would pull up to in public would have identical connectors, so any vehicle could use one. It will be a consistent, reliable interface,” said Kissel.

In the process of SAE J1772 development, a production tooled coupler has passed testing by Underwriters Laboratories for safety and durability.

SAE International is identified in the NIST Framework and Roadmap for Smart Grid Interoperability Standards for standards to support plug-in electric vehicles and as collaborators for energy storage interconnection guidelines.