DC fast charging is a mess. You have: 1. CHAdeMO. It's currently maxed out at 500v and 125A so 62.5KW but nobody really can reach that peak. Most battery packs top out at 400v or so and thus you'd get 400 * 120 = 48KW peak. But, there is a new CHAdeMO standard that will support up to 400KW. This standard tends more toward European and Asian manufacturers
2. CCS/Combo - Allows for either AC or DC charging and up to 350kw. Favored more by domestic and some European makers. 3. Tesla super charger - obvious who this is favored by. The super charger is probably the one you were thinking of. They're popping up everywhere these days. They're over 100kw. But, you have to have a Tesla to use them. Technically someone skilled in the black arts could probably hack them to work on other things but that'd be illegal. You wouldn't have to worry about legality if you were building the EVSE side yourself. But, I have no idea where you could get the plugs because they're only on Tesla super chargers. The car side you could at least get from a wrecked car. I suppose someone could 3D print the plug end but then you'd have to figure out if you wanted to trust a 3D printed part with 100KW running through the pins. Or, you know, you could sneak out at 1 in the morning with a pair of bolt cutters and.... nevermind, bad idea. ;) As for CCS/Combo - it's a lot more complicated to interface with that. It's essentially industrial ethernet or something and not that easy to develop code for. Both CHAdeMO and Super Charger are CAN based (single wire CAN for Tesla but still CAN). That's easier to work with and there is plenty of hardware available for the job. If you're looking for the most common type, its probably the super charger but you don't need common, you need possible to acquire the parts and build something. The most likely bet there is CHAdeMO but the inlets are something like $1000-$1500 a piece and the plug/cord for the EVSE side is about $2500 last I knew. That puts you right around $4000 just for the connectors on both sides. OUCH! On Sat, Jun 16, 2018 at 7:20 PM, jerry freedomev <freedo...@yahoo.com> wrote: > > Hi Collin nd All, > Since I'm not fluent in CANbus I guess I'll need a pre set comm > card. > I'm of need of just the car side for charging though for my direct solar > charging I'll need the charger side at least to get access to the pack. > I'm thinking of a used inlet as likely a new one is too costly > if one can be found. > Is CHadeMO the one that is likely to be wide spread in the > future 100kw and up units in the US? > Thanks, > Jerry Dycus > > > ________________________________ > From: Collin Kidder <coll...@kkmfg.com> > To: jerry freedomev <freedo...@yahoo.com>; Electric Vehicle Discussion List > <ev@lists.evdl.org> > Sent: Saturday, June 16, 2018 5:26 PM > Subject: Re: [EVDL] DC charging handshake? > > Well, you weren't specific but you might have meant CHAdeMO DC fast > charging. I'm going to assume such and if that wasn't the case you'll > have to be more specific. > > If you need to produce the car side CHAdeMO comm then you'll need a > way to connect to a CAN bus and you will need two inputs and two > outputs. The outputs drive relays so you might want your MCU outputs > to go to MOSFETs. Then you need code like this: > https://github.com/collin80/JLD505/tree/debug > > If you need the EVSE side then you still need to speak CAN and have a > way to selectively provide the DC voltage (and at a variable voltage > too so you probably need some sort of DC/DC). I don't have existing > code to copy for the EVSE side.... yet. But you might be able to > figure out what it is expected to do by looking at the car side code. > > You can buy CHAdeMO input and plugs. The inlets are expensive. The > plugs are completely outrageous. Sit down before looking up the price > of either one. It's extremely stupid. CHAdeMO is likely to be around > for quite a while as there are already thousands of CHAdeMO EVSE's all > around the world. > > I hope that's at least somewhat helpful. It's a kind of big topic. > > On Sat, Jun 16, 2018 at 7:40 AM, jerry freedomev via EV > <ev@lists.evdl.org> wrote: >> >> Hi All, I'm and I'm sure many others in need of >> how the DC charging works so I can put it in my new EVs and make direct >> solar charging work. What does the EV need to tell the DC to >> get power and what does the DC require from the EV? Can one >> buy the inlets and which inlets are likely to be around in the future? They >> seem to change every yr or so. I've lost track as I don't use them yet. >> With Volt modules I'll be able to charge in just 10-12 minutes if I can >> crack this. And I'll, others can build solar arrays that charge >> EVs directly from the panels. Plus is the basis for V2G >> systems on most any DC charging equipped EV by getting excess to the pack. >> Any help is greatly appreciated. Thanks, >> Jerry Dycus >> >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20180616/f107aa73/attachment.html> >> _______________________________________________ >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >> Please discuss EV drag racing at NEDRA >> (http://groups.yahoo.com/group/NEDRA) >> > > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
