Mini-QC Rapid-Charger (RC) Project for LEAF QC Port

[KillaWhat]

The correct search found it.

I'm saving it anyway ... just in case it goes bye bye.



.

Oh, me too!!

As it has been since the beginning of time, "Knowledge is hard to undo or contain".

And the nicest thing about the document, is my Acrobat let me pull off the Chademo logo for making a sticker / shirt without starting from scratch

This thing is a STANDARD!
You can't contain a Standard, and you shouldn't want to!
They put it on my car!
If they want to save it as a standard, they need to get out of the way.

I've been tempted since the beginning to replace the Chademo socket with the China Standard socket and use those plugs for making a DCQG charger.
Can get a set for about $250.
Tried and true.
Could even make an adapter cable using my original Chademo socket.

Use the China standard socket to access the pack as we are with the Brusa charger project, but pump 20 to 30 Kw through there.

 

[TonyWilliams]

The other input, for now, would probably be a 10-50P on a short cord,
or a 10-50R on the chassis??

???

 

[TonyWilliams]

Here's some free public CHAdeMO info posted on the internet:

http://www.chademo.com/wp/wp-content/uploads/pdf/TechnicalWS%282013.02.19%29.pdf" onclick="window.open(this.href);return false;

Hmm. what's that little Mitsubishi 1.5kW V2H setup?

Those have been available in Japan for quite some time.

 

[TonyWilliams]

Just because somebody obtains a document, and illegally
posts it on the Internet....

Pointing out their existence is not illegal, as far as I know.
Knowing that it is there is... at least interesting, and amusing.

I think you guys are getting carried away here. Are you saying I'm breaking some law (illegal) by posting a url to a document?

If you don't want to read it, don't. Please don't make accusations about folks who do want to post or read it, particularly when nothing illegal, nor even unethical, has happened.

CHAdeMO posted that on their web server, and it is (still) publically available through that link. Whether they intended that or not, I don't really care. None of us have any nefarious plans for the information. Nothing bad will happen with the information. No agreement or contract has been entered because they posted information, or that you read it.

 

[rickbecker]

How many LEAF owners would pay around $2000 for a portable,
amp-adjustable mini-QC device, capable of up to 11 kW charging?

With the right expertise, we think that should be possible.

I would be interested at $2000!

 

[mwalsh]

So how much is this going to weigh? And what kind of footprint is it going to have?

 

[pchilds]

I'm in for $4k for a 22k unit, with 2 isolated J1772 inputs.

 

[TonyWilliams]

I'd take one and I don't own a LEAF.

 

[Reddy]

How many LEAF owners would pay around $2000 for a portable,
amp-adjustable mini-QC device, capable of up to 11 kW charging?

With the right expertise, we think that should be possible.

I haven't been following this, so I'm not sure I completely understand, but... If you're talking about something I can plug into the 50 amp, 240 V campground 14-50 plug and then plug into the Chademo QC port on my Leaf and get 11 kW without any technical abilities, then yes, I'd be interested at $2K.

 

[garygid]

Yes, that's the kind of thing we are working toward designing,
even if we don't actually manufacture it, folks might be able
to put one together fairly easily. Perhaps similar to the
OpenEVSE, there might be an OpenMiniQC, or some such.

But, the first step is learning how to do it well.

Something around a cubic foot (plus cables) would be quite
portable, I suspect.

Yes, if they were about 11 kW, and totally subsidized by the owner,
then the cost of networking, billing, and collecting goes away,
and using local 240v power makes a lot of things practical.

We shall see.

 

[webfootguy]

I just found this item on ebay that may be of use to you folks:

http://www.ebay.com/itm/Electric-Vehicle-Quick-Charge-JARI-HighVoltage-DC-Plug-and-Receptacle-/370862937816" onclick="window.open(this.href);return false;

Enjoy

 

[GregH]

I just found this item on ebay that may be of use to you folks:

http://www.ebay.com/itm/Electric-Vehicle-Quick-Charge-JARI-HighVoltage-DC-Plug-and-Receptacle-/370862937816" onclick="window.open(this.href);return false;

Enjoy

Wow!.. What a hack job.. I wonder where this stuff came from?

 

[mwalsh]

^ Seems a bit pricey for a used one too. Which led me to the Internets:

Chinese knock-off for somewhere (?) between $83 and $220 bucks of any interest? Might be made of cheese though!


http://uchen.en.alibaba.com/product/701583516-0/Chademo_handles_Chademo_plug_socket.html" onclick="window.open(this.href);return false;

 

[TonyWilliams]

I just found this item on ebay that may be of use to you folks:

http://www.ebay.com/itm/Electric-Vehicle-Quick-Charge-JARI-HighVoltage-DC-Plug-and-Receptacle-/370862937816" onclick="window.open(this.href);return false;

Enjoy

Wow!.. What a hack job.. I wonder where this stuff came from?

Stolen out of the car while it was charging.

 

[KillaWhat]

^ Seems a bit pricey for a used one too. Which led me to the Internets:

Chinese knock-off for somewhere (?) between $83 and $220 bucks of any interest? Might be made of cheese though!


http://uchen.en.alibaba.com/product/701583516-0/Chademo_handles_Chademo_plug_socket.html" onclick="window.open(this.href);return false;

This is the Chinese standard assembly.
MUCH cheaper than Chademo, but far less quality.
I have considered changing my Chademo over to this for my "DCQC" project, and using my Chademo outlet (inlet?) to make an adapter.

And while I'm sure that the advertised plug / inlet is not "hot" it does look pretty hacked.
The cable alone would be a real project and $$ to replace.
$1500 seems Really Really steep.
IMHO

 

[mwalsh]

Wish now that someone on here would have jumped on the one that sold on eBay earlier in the year for only $200. Would be really usefull right about now. Who knew.

 

[garygid]

These are not approved or Listed parts, but are examples
of the interest and progress being made by dedicated folks.

----------
The J1772 socket on Thingiverse
http://www.thingiverse.com/thing:53586" onclick="window.open(this.href);return false;
no J1772 plug yet, it seems.

Here, the socket has the male pins, and the plug has the female pins.

----------
The QC Plug
http://www.thingiverse.com/thing:121581" onclick="window.open(this.href);return false;
and the socket
http://www.thingiverse.com/thing:80475" onclick="window.open(this.href);return false;

I expect to get the silver-plated male pins for the QC Plug today.

 

[garygid]

Interesting note about charging a LEAF using the QC port.

A LEAF with the original pre-April 2011 firmware requires the
current from the QC device to ramp up faster than is required
by a LEAF which has the latest (July 2013) firmware.

With some changes to the Robomo firmware, we are going
to test the "ancient" LEAF again, ramping the mini-QC current
more aggressively. :ugeek:

It is yet unknown which Upgrade to the LEAF caused the
car to become less "urgent", more forgiving, or more "laid back".

 

[garygid]

Success, the "ancient" LEAF finally charges with the Robomo
mini-QC successfully, 4 times, after 4 preceeding attempts
with less aggressive charging parameters. Cool.

If we can charge the oldest and the oldest with all the updates,
we just need to try a few 2011 and 2013 models.

However, it would be interesting to discover which
firmware update caused the LEAF to be less critical of
the QC staetup.

So, how about somebody with an early LEAF, without the
latest firmware upgrade, who can get to Dana Point in the
southern Orange County area, and be willing to try a mini-QC.

If the faster onset of charging works on your car, and the
slower onset does not (the car just rejects the Charger's
attention to become "fully engaged"), then we will be
fairly certain that this last upgrade "relaxed" the car's
rules of engagement.

On the other hand, if it passes both tests, then we will want to
find a LEAF that just has the very first firmware upgrade, or was
made in about April 2011 (when the first upgrade firmware
was incorporated into manufacturing) and has no further upgrades,
so we can test it.

 

[garygid]

Does anybody know of isolated DC power supplies, even of
modest power output levels, or of circuit diagrams of such
supplies, that we might be able to learn from?

Maybe a good textbook on isolated power supply design?

We need this before we can help others build working
mini-QC devices.