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Tamás,<br>
<br>
the reference voltage is meant to follow battery degradation and
environmental thermal conditions, it's currently taken after a 12V
charge cycle, with some calmdown time taken into account.<br>
<br>
To do that, it relies on the `ms_v_env_charging12v` signal. If that
is broken, it won't work properly -- and your chart seems to show
that: the reference has been taken while the 12V charge was still
running.<br>
<br>
Looking at the 12V chart for my Mii, there apparently is room for
improvements regarding very short driving periods, but on regular
12V charge cycles it works as designed:<br>
<br>
<img src="cid:part1.6G0gxqAy.PqYtt1om@expeedo.de" alt=""
width="1020" height="478"><br>
<br>
<br>
So I suggest taking a look at improving the `ms_v_env_charging12v`
detection on your car.<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 22.12.24 um 10:45 schrieb Tamás
Kovács via OvmsDev:<br>
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<blockquote type="cite"
cite="mid:CAGpaXUsHLCYfeZ2AozaXZ3jYzKaoApnduVj6GJNz9Zr7nZkAew@mail.gmail.com">
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<div>Can anybody explain, why changing the 12v reference
voltage, or is that good? I get some battery notification
because this. Hyundai ioniq 28 kWh.</div>
<div><a
href="https://mail.google.com/mail/u/0?ui=2&ik=b954432353&attid=0.1&permmsgid=msg-a:r6748997389650639300&view=att&disp=safe&realattid=f_m4zf8qem0&zw"
moz-do-not-send="true">Screenshot 2024-12-22 at 9.14.09.png
(490 KB)</a><br>
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<span class="gmail_signature_prefix">-- </span><br>
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature">Best regards:<br>
Tamás Kovács<span class="gmail-Apple-converted-space"> </span></div>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Michael Balzer * Am Rahmen 5 * D-58313 Herdecke
Fon 02330 9104094 * Handy 0176 20698926</pre>
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