Electronics & Connectivity - November 28, 2012 - 14

tech report
version of the standard, adopted in 2010, spelled out the specifications for the J1772 Connector that is used for charging with ac power at comparatively low levels (ac Level 1 for 120-V charging and ac Level 2 for 240-V charging). That connector is in wide use today, being directly compatible with the Nissan Leaf, Chevrolet Volt, and Mitsubishi i. Its specifications spelled out in the revised standard, the new Combo Connector maintains all of the functionality of the previous version of the connector but includes two extra pins for the optional delivery of dc current for fast charging. The Combo Connector’s big payoff comes in the future as automakers can equip their upcoming EVs (defined here as battery-electric vehicles and plug-in hybrid electric vehicles) with a single receptacle that can accommodate the smaller previous-generation ac connector or the larger second-generation Combo Connector that can deliver ac or dc current at two different rates each.

REMA is among the companies that produce J1772 equipment. Shown here is the Combo Connection System with its twin lower pins designed for dc fast charging.

The physical couplers differ slightly between the U.S. and Europe, but the communications underneath are the same. (SAE International)

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November 28, 2012

SAE electronics+connectivity

Electronics & Connectivity - November 28, 2012

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