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<p>Hello everyone,</p>
<p>My name is Ludovic and I've just bought an OVMS for a R&D
project I'm working on. I know how to read/write some (easy) code,
and am not afraid of (digital) electronics too. I've managed to
compile, and flash FW to this unit.<br>
</p>
<p>My use-case is to use OVMS as an aid during the testing phase /
tuning of an EV vehicle:</p>
<ul>
<li>Using OVMS as a pure data-logger of the CAN Bus (to SD card,
with an automatic offload to a remote server as soon as a
network connexion is available) - i.e. logging during the runs,
and dumping the data either as soon as possible, or when the
vehicle is back in the shop.<br>
</li>
<li>Also making use of the "dashboard" functions to have an
in-vehicle display (phone/tablet) of the main parameters of
interest : GPS Speed, Motor RPM, some BMS parameters, some
controller parameters, ... so that the test driver can have some
feedback on the internals of the vehicle.<br>
</li>
</ul>
<p><br>
</p>
<p>Part of my plan is to explore the DBC-based vehicles of OVMS, and
for that I was interested in using the "replay mode" that has been
contributed to the code in 2019 :
<a class="moz-txt-link-freetext" href="https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/commit/611b656bd50f46ad4a442c5d3837e13feb8e2116">https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/commit/611b656bd50f46ad4a442c5d3837e13feb8e2116</a>
; however it does indeed look like a work in progress - as I
wasn't able to make it replay something.</p>
<p>I've not delved much into the code (yet ?) but it looks that some
implementations are incomplete (like `<span class="blob-code-inner
blob-code-marker js-code-nav-pass " data-code-marker="+"><span
class="pl-en">canplay_vfs::InputMsg`</span></span>) and could
explain that. But first I wanted to ask here what was your
experience with this part - is it working for you in some state,
even buggy ?</p>
<p>"replay mode" is not absolutely necessary but could be a huge
time saver - otherwise I'd have to replay from another CANBus
transceiver - and I'd prefer an integrated environment.</p>
<p>"replaying" is interesting for the setup phase as I'll be able to
fine-tune the DBC setup ; have the metrics generated and then have
the dashboard displaying "live" data - without needing a real
vehicle test.<br>
</p>
<p><br>
</p>
<p>Also in the plan is to build a customized dashboard from a chosen
set of metrics. This looks easy and well documented as far as I
could tell, and I do not expect a lot of difficulties here ; what
do you think ?<br>
</p>
<p><br>
</p>
<p>Also part of the plan would be to have a way to log to fixed-size
files (either based on the number of events captured on the CANBus
; or based on the duration of the capture - like every 5 minutes)
and to find a way to "rsync" them to a remote server. I do not
intend to use the "server" connection (be it V2 or V3) as my
use-case is a little bit different and I need to retrieve raw
CANBus data, not processed metrics - for later post-processing
(with SavvyCAN etc...). I'm open to any advices on the feasibility
of this.</p>
<p><br>
</p>
<p>Finally, as a newcomer I'll also try to help with documentation
on things that I struggled with or that are evident but not in the
doc yet.</p>
<p><br>
</p>
<p>Thanks everybody who created (and contributed to) this project
that looks a fantastic tool to observe and tinker with vehicles!<br>
</p>
<p>Please feel free to share your thoughts on this.<br>
<br>
Regards from France,<br>
Ludovic LANGE<br>
</p>
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