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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>
</div>
<blockquote type="cite"
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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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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