kenn said:
Does anyone else find it strange that most who do not like the SAE combo call it a 'Frankenplug'. Everyone is acting like they are a bunch of spoiled brats if their preferred standard is not accepted. It is somewhat irrelevant what each of us think since we are not a major players in the EV industry. Lets just get a standard fast charger and make adapters for the non standard. A DC volt is DC volt and AC is AC even tho it may be a little different in frequency. Our common part (EV's) outweighs any operational part. kenn
Frequency? AC by definition has a frequency, typically 50 or 60 hz and no + nor -. DC is direct current. There should be NO frequency.
There's unfortunately a lot more of a difference between J1772 CCS (for which there seem to be two different connectors for the AC part: one that looks like J1772 L1 and L2 AC, the other that looks like Mennekes) vs. CHAdeMO than just the connectors. I believe J1772 CCS uses GreenPHY PLC while CHAdeMO uses CAN (Controller Area Network).
I don't know all the details and frankly, I care very little about Frankenplug's technical details. If you want to slog thru the details, there are some nuggets of info from the Frankenplug fanboy that you'll easily spot over in these threads:
http://www.teslamotorsclub.com/showthread.php/16401-CHAdeMO-adapter-frustration-%28adapter-coming-winter-2013%29
http://www.teslamotorsclub.com/showthread.php/12357-SAE-vs-CHAdeMO
http://www.teslamotorsclub.com/showthread.php/7107-Likelihood-of-a-CHAdeMO-adapter-for-the-Model-S
http://www.mynissanleaf.com/viewtopic.php?f=26&t=9092 - not much to slog thru here
You should really ask yourself the motivations of the Frankenplug players. MNLers for ages have been saying their only purpose was to attempt to slow down Nissan by creating FUD and consumer confusion. Perfect example of this was with http://en.wikipedia.org/wiki/DIVX vs. DVD. When DIVX finally died, DVDs took off. It's likely there were a decent % of people confused and buying neither until things "sorted themselves out".
GM threw punches at http://www.torquenews.com/1075/gm-and-nissan-trade-punches-over-electric-car-fast-charging.
Balch went on to describe the current situation as a "hodgepodge of fast charging standards" with Tesla having its own proprietary level 3 system, Nissan and Mitsubishi using CHADEMO. He noted that last week, at EVS26, an alliance of 8 automakers (including GM) announced support for a the "combo plug" designed by the SAE DC Fast Charging committee. He described this as "a new standard," one "that is going to come, probably before the end of this year," meaning the SAE committee is expected to approve the standard this summer, charging stations are expected to become available late in the year, and cars to become available in 2013.
The bombshell then landed when Balch said "we need to make sure, especially because we're talking about taxpayer money, that ONLY those standards are installed going forward." Meaning that because the SAE DC Fast Charge standard is the only "standardized" fast charging system, this is the system to endorse. Balch was actually boooo'd at this point, but he went on to remind us of the past history, that we know its a bad move to have competing charging connector standards. Finally, he said "there is a very small group of cars that use a non-standardized level 3 charging connector," referring to the Nissan Leaf and Mitsubishi i-MiEV and the upcoming Tesla Model S.
So, 1 year and ~4.5 months after that, nobody is shipping ANY Frankenplug cars in the US and that "very small group of cars" is past 110K units and Tesla is somewhere past 14K units (IIRC). TSLA announces earnings tomorrow, so we'll get to see if guesses were right.
It's not to say that CHAdeMO is perfect. The connector is huge and the early Yazaki handles are not user-friendly nor very intuitive. They still seem to be in wide use, including on Nissan's QCs.
At this point, the path of least resistance if new BEVs/PHEVs want to take advantage of current and growing DC FC infrastructure is to either adopt CHAdeMO or pay Tesla to license their Supercharger standard and gain access to their stations. But, the players I've mentioned could've done the former awhile ago...