Don't you just hate those chargers that don't even show charge rate.
Saw a video recently (Gridserve's Ecotricity replacements I think), which actually showed voltage, current and kW - that's what we want!

I love it when a plan comes together... can't wait for the video...

Re. getting logs - how easy is it to access the required CAN bus?
I know someone with a fairly recent i3, but not sure how amenable he'd be to tinkering....

Maybe also see if we can find someone with access to third-party BMW service tools to see if they have anything about LIM coding to the car. For example :

The "No VIN" behaviour is potentially encouraging though. And there is probably a way to program the VIN into it (at least a blank unit), or maybe read it out. Worst case, find a suitable volunteer with an i3, Have its LIM suffer a "mysterious" failure under warranty and send it ...

muehlpower wrote: ↑Thu Jun 03, 2021 9:32 am It seems the LIM only works on voltages above 200V.

I think CCS has a minimum voltage of 200V - apparently this is why very few electric motorbikes support CCS, as they typically have lower battery voltages

Not sure how relevant this one is - seems to be mostly about AC powerline/metering stuff but does mention the QCA7000
https://usermanual.wiki/Document/PLCChi ... 07490/html

Some more info here
https://in-tech-smartcharging.com/asset ... 4_rev5.pdf

https://www.findic.kr/gagyeog/qca7000-a ... P00zb.html

Clicking the PDF link shows the full document :

https://www.findic.kr/doc/browser/8LW03 ... #locale=ko

but my Korean isn't up to figuring out how to download the PDF

This paper, describing a charger compatibility test system has some descriptions of the CCS charge process which might be helpful to anyone trying to get their head round things :
https://res.mdpi.com/applsci/applsci-06 ... -00165.pdf

Looking at the BMW LIM , I think that looks like the better option than the Hyundai for multiple reasons - better availability, reasonable price (even if you have to buy a new one), contactor support etc. I'm happy to do some logs of mine while charging if anyone really wants it, but I'll wait to se...

..or if you value your time at any more than minium wage, figure out that it would be cheaper to "rent" an i3 off ebay & log the crap out of the LIM module

Step 2 : ??? Oh that's easy : Find QCA700x datasheet without having to sign NDA Write/port complete 7 layer network stack Implement CCS protocol (includes making decisions on stuff that's ambiguous). Repeatedly stab a voodoo doll you made of the IT dweeb who thought that as it's a "power"...

Did you try giving it a 5% PWM CP signal so it thinks a CCS rapid wants to play?

I've taken some logs - attached - not actually CCS charging yet, but I did give it a 5% PWM on CP, which is the indicator for DCFC. This thinks about it for about 10 secs then gives a red chargeport light, and a "Check DC charger" error next time you start, so it probably involves the CCS ...

Apologies if this has been mentioned before - don't recall having seen it :
https://in-tech-smartcharging.com/produ ... -control-l
https://in-tech-smartcharging.com/produ ... e-module-s

Found some other QCA7000 modules:

https://in-tech-smartcharging.com/produ ... lc-stamp-1
https://www.belfuse.com/resources/datas ... module.pdf

Is the datasheet for the QCA7000 available? Also, the line interface looks like it's aimed at powerline applications, probably differential - might needs some mods for the single-ended CCS application. Shouldn't be too hard to compare the coupling circuit on the board with one on a car CCS controlle...

On the Ioniq, it shows basically the same diagram for Europe, and Chademo for "General" ioccs.png iochad.png Hi. I have Kia Soul EV first edition with Chademo port - OBC is the same as in Ioniq and probably in Kona. KIA is a kind of Hyundai cheaper brand ;) It would be great if I can add ...

Yes sure. I've made up a cable assembly & been meaning to have a general play with the CAN sniffer but not quite got round to it - I've been on the lookout for a spare unit - there was a Kona being broken on ebay recently but the seller is asking stupid money for parts : https://www.ebay.co.uk/i...

Someone could, for example, write a document encapsulating the same information, e.g. substituting code for a flowchart, renaming symbolic names etc. In order to do this you would need access to a registered document and this would result in a violation of the "otherwise exploit" IEC lice...

Even just re-writing the same information ( lists of commands etc.) would be OK. The IEC disagree - "YOU may not lend, lease, reproduce, distribute or otherwise exploit, whether commercially or not, the IEC Publication(s) to which this Licence Agreement relates." https://www.iec.ch/websto...

Laugh at me but I just found out what GreenPHY is: https://de.wikipedia.org/wiki/HomePlug#HomePlug_GreenPHY It is said to be compatible with "Homeplug AV2". So buying a cheap powerline adapter would already let you tap into the communication physically. I know there's a few projects here ...

I think you may be able to at least get it to start trying PLC comms by giving it a 5% CP signal - if nothing else this may spit out some error messages.

Bear in mind that the 77kW limit may well be coming from the BMS, not this CCS box, which could be a fairly simple protocol converter that the BMS talks to.