New fast charging standard for electric vehicles from SAE International


Warrendale, PA, U.S.A. — (METERING.COM) — October 29, 2012 – A new fast charging standard that enables the charging time for plug-in hybrid electric vehicles and electric vehicles to be reduced from as long as eight hours to as short as 20 minutes, has been published by SAE International.

The standard, J1772™: SAE Electric Vehicle and Plug in Hybrid Electric Vehicle Conductive Charge Couple, was developed in a consensus environment by more than 190 global experts representing automotive, charging equipment, utilities industries and national labs.

The standard represents the future of charging technology and smart grid interaction, while addressing the needs of today. Such needs include reduced times at public charging stations, enabling consumers to travel greater distances in their PHEVs and EVs.

“This new standard reflects the many hours that top industry experts from around the world worked to achieve the best charging solution – a solution that helps vehicle electrification technology move forward,” said Gery Kissel, Engineering Specialist, Global Battery Systems, GM, and SAE J1772™ Task Force chairman. “We now can offer users of this technology various charging options in one combined design.”

The original version of  J1772™ defined  AC Level 1 and AC Level 2 charge levels and specified a conductive charge coupler and electrical interfaces for AC Level 1 and AC Level 2 charging. The new revision incorporates DC charging where DC Level 1 and DC Level 2 charge levels, charge coupler and electrical interfaces are defined. The standard was developed in cooperation with the European automotive experts who also adopted and endorsed a combo strategy in their approach.