11KW MLBevo charger group hack 5QE915684BJ possible

[uhi22]

The log shows, that the charger "accepts" the writing of the coding information (positive response 6E 06 00), but it ignores the data and does not store it. Maybe this coding service is just a left-over of the "base project" and not relevant at all. Or the content of the data matters, maybe it stores the data if it passed a certain consistency check.

[LRBen]

Well I would say we have probably gone as far as we can with it at this stage without further information on the firmware or maybe can logs from the specific vehicle.

But I think it's a good start. We have established that they still power on and can communicate with ODIS and a Mongoose adaptor. We know they are not standard VAG. I'll keep trying to get some contact from Street Scooter and see how open they are to sharing some information.
It is my suspicion that they will work without coding with the correct canbus messages, if they are indeed from Street Scooter. It makes sense if you are a smaller company to make things a bit less complicated.

[uhi22]

Is there any hint on / in the charger, what company produced them?

[crasbe]

If the wiki is right, they are made by KOSTAL: https://www.kostal-automobil-elektrik.c ... ectronics/
Seems at least plausible, my other charger says "Made in Ireland" and KOSTAL has two subsidaries in Ireland.

One hint is the high voltage warning sticker, it has a VW part number: "12E 010 001 B", my 5QE 915 684 AT charger has nearly the same sticker, but with part number "12E 010 001G". Otherwise there are just numbers in the casting, no letters. Possibly a date code of a casting of "04 2018".

[crasbe]

Comparing the stickers, the similarities between the VW one and StreetScooter tag are quite obvious.

[crasbe]

This might be the proof for Kostal: https://www.electrive.net/2018/08/11/ca ... etscooter/

Cadmium-belastete Ladegeräte sind zwischen 2013 und Juni 2018 verbaut worden. Betroffen sind der VW-Konzern und StreetScooter. Laut “Automobilwoche” stammt das Bauteil mit den belasteten Kontakten von Kostal.

Cadmium-polluted chargers were installed between 2013 and June 2018. Affected are the VW company and StreetScooter. According to "Automobilwoche", the part with the polluted contacts comes from Kostal."

I wonder.... are those chargers some that were affected by the recall and somehow jumped out of the dumpster? The tag with a date of 2020 however would indicate otherwise.
The casting from Jacobs charger says "23 2019", so it's a later model and apparently it's a week indicator, not a month indicator.
So my charger with "04 2018" might be cadmium polluted. Or maybe not.. probably not more than the bolts of the car it'll perhaps be installed into..

[uhi22]

Just for completeness: The unit from LRBen says software version 9005 in the diagnostic service 22 F189, this is near but not exact the 9007 on the sticker above.

[crasbe]

Ifound some CAN logs on Reddit, but it's just key off key on:

And this from a report where inductive charging was implemented: https://www.erneuerbar-mobil.de/sites/d ... ericht.pdf
Page 24 shows a screenshot with some decoded CAN data, but I'm not sure if that's of the internal charger or the added inductive charger.

That's about all I could find, there are some scientific publications but none with CAN IDs.

[crasbe]

Just for completeness: The unit from LRBen says software version 9005 in the diagnostic service 22 F189, this is near but not exact the 9007 on the sticker above.

Ben is doing the testing on another unit though. Perhaps his has an older software version. I will get my charger hooked up next month when I have some spare money to buy a Mongoose..

[Jacobsmess]

Ah I just wrote a long post and then tried to add a photo and the post was lost!
Anyway in short, I looked at replacing the large HV cable for something cheaper and more commonly available. The small HV connector cannot be removed due to some small wires with no slack and the 60 pin connector is more widely available.
The large HV connector uses 5 spade pins direct to the board with the top centre small pins unused. It looks like it might be possible to 3d print an adapter for the cable to something more commonly available or use spade connectors and a 3d printed gland or some form.

[LRBen]

Ah I just wrote a long post and then tried to add a photo and the post was lost!
Anyway in short, I looked at replacing the large HV cable for something cheaper and more commonly available. The small HV connector cannot be removed due to some small wires with no slack and the 60 pin connector is more widely available.
The large HV connector uses 5 spade pins direct to the board with the top centre small pins unused. It looks like it might be possible to 3d print an adapter for the cable to something more commonly available or use spade connectors and a 3d printed gland or some form.

I would try and get a VAG group charge port with the connector. Plenty on Ebay these days for around £150. Much cleaner and safer than making up an adaptor.

[Jacobsmess]

I would try and get a VAG group charge port with the connector. Plenty on Ebay these days for around £150. Much cleaner and safer than making up an adaptor.

That's a good shout although following a quick look I'm yet to find anything...