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<body>Hmmm... ok lets forget the 2nd log and talk about the first one. <br>It must somehow be related to OVMS though as the replies get in immediately I swap the poll states. If I change the threshold from 5 secs to 3 or to 6 its always the same: once the poll state swaps the replies come in. So it must be related to the poll stat switch. The canlog shows all polls look the same... so the gateway must get confused every time exactly when the threshold*4 is over?<br>Hmmm... or maybe the gateway gets confused after a certain number of polls. So the threshold doesnt matter. <br>When I change the factor 4 to i.e. 6 I could validate this hypothesis. <br><br>Havent had time for session implementation yet. <br>Is there a OVMS framework for a tester session? Or at least a vehicle implementation which does it?<br><br><div class="gmail_quote">On 8 August 2020 16:58:25 CEST, Michael Balzer <dexter@expeedo.de> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Soko,<br>
<br>
lines 33 and 34 of your second log are due to the CAN TX buffer,
which seems to have held back the frame until the bus became
available.<br>
<br>
Besides that, I don't see an RX in that log after switching the
polling state. So I assume the RX in your first log also isn't
related to the poll state switch.<br>
<br>
There is an RX buffer, but that's just the internal queue of the
vehicle CAN listener task. There is no delay on the processing
unless you block the task somehow, for example by doing long term
loops / communication in that context (which you shouldn't do).<br>
<br>
You still don't send a session login or tester presence, so maybe
the gateway is simply confused by the requests, runs into some
timeout, then restarts… something like that.<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 08.08.20 um 13:20 schrieb Soko:<br>
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<p>Soooo....</p>
<p>I've finally found time to test this again.</p>
<p>Basically the same behaviour as described below.</p>
<p><b>VWUP_OFF_TICKER_THRESHOLD 5 with 4 trys.log</b><br>
Car was locked initially. Unlocked the car before line 21
(around time mark 60.000). Locked around time mark 80.000. Car
stayed responsive until line 108 (time mark 100.000).<br>
At line 130 (tm=116.814) I swap back to PollState=0. The poll
for PollState=0 gets an immediate reply (line 131-133) and
therefore I swap back to PollState=1.<br>
The weird thing is that line 132 (which got a reply) is exactly
the same as 126 (or 118 or 110) which didn't get a reply!?!? So
the car has no idea of the poll states as the data is the same?
There must be some issue/bug/behavior inside OVMS (maybe even in
the hardware buffer) which gets triggered by a PollState change.
Or the canlog-monitor uses somehow a cache and doesn't show the
messages immediately.</p>
<p><b>VWUP_OFF_TICKER_THRESHOLD 10 with 4 trys.log</b><br>
Same as below. One thing I've noticed though: Car was locked
until line 32 (tm=63.814). Then I've unlocked it and the lines
33 and 34 showed up immediately. This indicates a
buffer/cache/etc. issue with the canlog-monitor as well (imho).<br>
</p>
<p>Soko<br>
</p>
<div class="moz-cite-prefix">On 03.08.2020 13:10, Michael Balzer
wrote:<br>
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Soko,<br>
<br>
I don't see any obvious mistakes on a first check.<br>
<br>
Please do the tests again with CAN monitoring, so we can see
what's actually going on on the bus.<br>
<br>
An OBD device normally logs into the device sending a UDS diag
session command (0x10), then keeps that session alive by sending
tester present (0x3E) evers 30-60 seconds. See the UDS
documentation I sent you, or for an overview, see <a href="https://de.wikipedia.org/wiki/Unified_Diagnostic_Services" moz-do-not-send="true">https://de.wikipedia.org/wiki/Unified_Diagnostic_Services</a><br>
<br>
You should be able to get the session type and protocol by
logging what your VCDS does on the bus.<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 03.08.20 um 06:19 schrieb Soko:<br>
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<p>Mornin,</p>
<p>Source is here: <a class="moz-txt-link-freetext" href="https://github.com/devmarxx/Open-Vehicle-Monitoring-System-3/tree/master/vehicle/OVMS.V3/components/vehicle_vweup/src" moz-do-not-send="true">https://github.com/devmarxx/Open-Vehicle-Monitoring-System-3/tree/master/vehicle/OVMS.V3/components/vehicle_vweup/src</a></p>
<p>Attached are two logs. I haven't had the can-monitor active
unfortuantely..</p>
<p><b>VWUP_OFF_TICKER_THRESHOLD 5 with 4 trys.log</b><br>
As the name says it polls every 5 seconds in PollState=1 and
swaps back to PollState=0 after 5*4=20 seconds.<br>
Until line 35 you see the CAN errors as the vehicle is OFF.
Then I unlocked the car and in line 38 I get the first
reply.<br>
Around line 90 I locked the car again. It polls, but gets no
reply, <u>but not error either</u> (?!).<br>
Line 118 sets the PollState=0 and suddenly a response comes
in. So in Line 123 I set the PollState=1 again.<br>
The the game starts again: Polls get send, no reply but no
error either. After 21 CarOffTickers I switch to PollState=0
and suddenly a reply comes in...</p>
<p><b>VWUP_OFF_TICKER_THRESHOLD 10 with 4 trys.log<br>
</b>Here I unlocked at line 57 and locked around line 100.
After that polls get send, no reply, <u>but errors happen</u>.
And the car is finally off.<br>
Although I've tried the same thing later that day and the
car didn't even go to sleep with Threshold=30!?!? So the
behavior is not 100% reproducible (yet)...<br>
</p>
<p>@gateway throttling: In VCDS (which - hopefully - does only
polling too) I have a little number showing me the refresh
rates of the values. It indicates ~8 refreshes per second.
So with 1 second shouldn't be any throttling.</p>
<p>@OBD "tester": I have no clue what this is ;) So if the
polling framework doesn't do it, I don't do it. All I do is
in the obd_eup.* files.</p>
<p>Soko<br>
</p>
<div class="moz-cite-prefix">On 02.08.2020 20:12, Michael
Balzer wrote:<br>
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Soko,<br>
<br>
polling may keep the car awake, that's also an issue on the
Kia e-Niro IIRC.<br>
<br>
Changing the PollState can only affect the car indirectly
via the changed polls. Maybe you could add your code & a
log?<br>
<br>
Regarding the poll replies stopping, is that also reflected
in a CAN log? Maybe the OBD gateway throttles if it sees too
many requests? (Hopefully not…)<br>
<br>
If the gateway does throttling: do you login to the OBD as a
"tester" and keep the session active by periodically sending
the "tester present" frame?<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 02.08.20 um 19:30 schrieb
Soko:<br>
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<p>Heya again,</p>
<p>I'm trying to develop a detection for when the car is
off/locked but I'm encountering a weird phenomena:</p>
<ul>
<li>Car is shut down and locked</li>
<li>OVMS connected</li>
<li>CAN poll for voltage (only one poll value active)
with 30 secs fails with error (so far nothing weird)</li>
<li>Unlock the car via car-key remote</li>
<li>Poll succeeds and I'm switching from PollState=0 to
PollState=1 where I poll every 2 secs</li>
<li>Lock the car via car-key remote</li>
<li><u>After 1 hour the polls still work and the car is
active</u></li>
</ul>
<p>Is something like this known from other vehicles? So
basically my car never shuts down :(</p>
<p>Another secondary weird thing:<br>
When increasing the time to 5 secs for PollState=1 the
polls get no reply and after 20 secs I swap back to
PollState=0.<br>
BUT the second the PollState changes the car replies
again...<br>
Even more weirdness: When PollState=1 time is 10 secs
and I swap back to Pollstate=0 after 40 secs the same
thing happens! Immediately I swap to PollState=0 the car
replies again.<br>
As if the PollState switching somehow wakes the car
up??!</p>
<p>Any ideas?</p>
<p>Soko<br>
</p>
<br>
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