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 <[email protected]>
To: jerry freedomev <[email protected]>; Electric Vehicle Discussion List
<[email protected]>
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
<[email protected]> 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
>
>
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