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<p>Yeah, I've also thought about VCDS but when I used it during
charging it was just for a couple of minutes and the ignition was
on all the time as I was getting a hole bunch of data and values
from it...</p>
<p>So another fork of the whole e-Up via OBD project I should
investigate. It doesn't get boring for sure :D<br>
</p>
<div class="moz-cite-prefix">On 18.08.2020 12:41, Michael Balzer
wrote:<br>
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<blockquote type="cite"
cite="mid:92460257-4900-eff2-d7e0-8397c37b30ee@expeedo.de">
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Soko,<br>
<br>
integrating the 12V DC converter with the main charger can be
convenient, as the 12V battery also will need to be charged from
the main battery. But it doesn't look like it's done that way on
the eUp.<br>
<br>
I guess the charger only provides these additional calculations
when another unit requested them. As the other unit goes offline,
the charger stops providing after some timeout. You'll need to
know which unit talks in what way to the charger -- but the
gateway won't let you see that. I think you'll need to get access
to the unfiltered bus to see what's actually going on.<br>
<br>
Or maybe the VCDS continues displaying these values? Then you can
log & mimic what that does.<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 18.08.20 um 12:00 schrieb Soko:<br>
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cite="mid:a24e61d4-5711-8209-54de-63c160e0a055@soko.cc">
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<p>Hi Michael,</p>
<p>Just to make sure: I'm talking about charging the main
battery, not the 12V battery. But I didn't check the status of
the 12V battery. But it would be weird to happen 2 times
during a charging process exactly after 20 mins.<br>
What I did is to log a complete main battery charge.
Results/Details see here: <a class="moz-txt-link-freetext"
href="https://www.goingelectric.de/forum/viewtopic.php?p=1327718#p1327718"
moz-do-not-send="true">https://www.goingelectric.de/forum/viewtopic.php?p=1327718#p1327718</a></p>
<p>To your 2nd email:<br>
Yes, the values are for the DC converter of the main battery,
not the one for the 12V battery. All values are from this ECU:
<a class="moz-txt-link-freetext"
href="https://www.goingelectric.de/wiki/VW-e-up-OBD2-SGC6"
moz-do-not-send="true">https://www.goingelectric.de/wiki/VW-e-up-OBD2-SGC6</a></p>
<p>Soko<br>
</p>
<div class="moz-cite-prefix">On 18.08.2020 11:54, Michael Balzer
wrote:<br>
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cite="mid:c44c4edc-923b-722d-97e4-89cd5fa6a10a@expeedo.de">
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Soko,<br>
<br>
was the charger actually working, i.e. charge in progress? If
not, maybe it goes asleep as soon as the 12V aux battery is
topped off, and another ignition state change simply
reactivates the topping off cycle.<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 16.08.20 um 16:28 schrieb
Soko:<br>
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cite="mid:AEA811F7-2522-4873-8261-F53FCE88A1BD@soko.cc">
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Hi guys,<br>
<br>
Question for the CAN and ECU experts:<br>
<br>
I am logging into the battery charger ECU on my eUp via the
extended diag session code. Otherwise I get 7F as reply. <br>
<br>
I am interested in the power efficiency (pe) and power loss
(pl) values.<br>
<br>
It seems though as they have another timeout than the ext
diag session as I am polling it every 5 seconds. So ext diag
is "always on". <br>
<br>
But after 20 minutes during charging the values change from
the realistic ones to pe=100% and pl=0. To get the real
values back I have to unlock the car and turn the ignition.
Then I can turn off and lock the car again. <br>
<br>
Now to the question: Is this behaviour somehow known from
other vehicles as well or can it be an error in my code not
sending the ext diag msg correctly?<br>
<br>
Although when I dont send it at all I dont get even a value
for pe and pl, just the 7F error msg. <br>
<br>
So do you think it is possible to get those values for
longer than 20 mins without having to turn the ignition? Or
am I out of luck here as it seems to be some VW specific
thing...<br>
<br>
thx<br>
Soko <br>
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Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
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Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
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