SAE J1772 *Level 1* DC?

Have you guys heard of the proposed SAE J1772™ Level 1 DC standard?
http://www.sae.org/smartgrid/chargingspeeds.pdf

EVSE includes an off-board charger
200-450 V DC, up to 36 kW (80 A)
Est. charge time (20 kW off-board charger):
PHEV: 22 min. (SOC* - 0% to 80%)
BEV: 1.2 hrs. (SOC – 20% to 100%)

It reuses the existing J1772 AC connector and sends data down the control pilot pin.

They are aiming for a cost target of less then $1K for a 12kW off-board DC level 1 charger.
Pretty cool stuff.

I stumbled across this while looking at these slides:
http://www.ilmua.org/AnnualMeeting/Annual%20Meeting%202011_Bohn.pdf

So, then one would need cars that could use it?

An inexpensive QC would at least be usable on existing cars.

Yea, this one would require car side changes which I'm not sure could be done after market.

Still, super cool for future vehicles (such as the 2013+ LEAF?).

I think the SAE paper is just showing different existing and proposed charging configurations in two columns to fit on a single page. It lists AC levels 1, 2, and 3 on the left and DC levels 1, 2, and 3 on the right. It only lists the J1772 standard with a picture of the connector for AC levels 1 and 2 because it applies only to those levels. The DC connections (levels 1, 2, or 3) will require a separate connector directly to the battery. Although it is possible that proposed AC level 3 could use the existing J1772 standard connection, it is not likely because of current density limitations in the AC power terminals of the plug/connector assembly.

GerryAZ said:

The DC connections (levels 1, 2, or 3) will require a separate connector directly to the battery.

Click to expand...

DC Level 1 uses the same J1172 plug, and uses signaling over the control pilot to cause the car to connect pack voltage directly to the two AC pins.

Thanks!