[Ovmsdev] VW e-Up read/poll via OBD is working

[Chris van der Meijden]

I would try RE Tools too to see if there are realy no CAN messages.
It would be great if you could proof me wrong. Would save us heaps of
work ...
Chris
(dev)marxx
Am Donnerstag, den 30.07.2020, 16:43 +0200 schrieb Soko:
>     Ahhh OK, I've found OvmsVehicle::virtual void TickerXXX(uint32_t
>       ticker);
> 
>       Got it! This was exactly my issue as I didn't know about any
>       function which gets called regularly so I could check something
>       like this...
> 
>       It's not an ideal situation though: I just can slow down the
> poll
>       after my fail-counter gets too high as I need to check when the
>       car gets powered again. So all I can do is polling, lets say
> every
>       60 secs when the car is off, and increase it once its on. But
>       there is now way around this 60-sec polling if the only thing I
>       can do is poll :(
> 
>     
> 
>     Afaik there is only the sharkcow's list below, reverse engineered
>       by him from ODBeleven.
> 
>     (dev)marxx exlpained to me: There is a gateway between the
>       CAN-Buses and the OBD Connector in all VW-AG vehicles which
> only
>       replies to polls and also acts as security gateway if you want
> to
>       write to the buses.
> 
>     So I think I cannot really do a can log or use re tool as the OBD
>       interface stays quiet if I'm not polling it...
> 
>     And as there is no other vehicle from VW,Seat,Skoda,Audi,etc. in
>       OVMS. So I have no cheat-sheet :(
> 
>     Anyhow... I would need to poll one ECU (is this the correct
>       therm?) which doesn't shuts down... or maybe the issue is the
>       OBD-gateway shutting down.
> 
>     
> 
>     What do you think?
> 
>     Soko
> 
>     
> 
>     On 30.07.2020 16:17, Michael Balzer
>       wrote:
> 
>     
> 
>     
> >       
> >       Soko,
> > 
> >       
> > 
> >       nice progress :-)
> > 
> >       
> > 
> >       If you can't detect vehicle state by listening to regular
> > status
> >       CAN frames, you can check the time since the last poll reply
> > in
> >       the per second ticker.
> > 
> >       
> > 
> >       As poll replies normally come in fast, you should be able to
> >       detect a switch-off by a small timeout, say 3 seconds…
> > probably
> >       need to add a counter, as a single poll may get lost /
> > ignored.
> > 
> >       
> > 
> >       CAN tx errors can be caused by other issues as well, so
> > should
> >       generally not be interpreted that way.
> > 
> >       
> > 
> >       But… are you sure there are no status frames on the bus? Have
> > you
> >       done a can log or tried the re tool?
> > 
> >       
> > 
> >       Regards,
> > 
> >       Michael
> > 
> >       
> > 
> >       
> > 
> >       Am 30.07.20 um 14:43 schrieb Soko:
> > 
> >       
> >       
> > > Hi guys,
> > >         
> > > 
> > >         
> > > 
> > >         Want to report success on connecting and reading my VW e-
> > > Up via
> > >         OBD cable using the Poller. As you can see in the
> > > screenshot of
> > >         the log attached I get an IncomingPollReply(..) call and
> > > an SoC
> > >         value of 33.333% 
> > > 
> > >         
> > > 
> > >         Once I turn of the ignition and lock the car though I
> > > don't get
> > >         any replies no more (line D 793813) and then I get can1
> > >         errors... I'm polling with 10 seconds intervall. 
> > > 
> > >         
> > > 
> > >         I know that this is as it should be... but my issue is: I
> > > don't
> > >         have any way to know if the ignition is on, the key is
> > > in, the
> > >         car is running, the car is charging as the PIDs are not
> > > known
> > >         for such values (afaik by the lists of sharkcow https://w
> > > ww.goingelectric.de/wiki/Liste-der-OBD2-Codes/).
> > >         
> > > 
> > >         
> > > 
> > >         So what would be the best approach to change the
> > > different
> > >         polling states? Can I somehow get called (in my vehicle-
> > > class)
> > >         if an can-error is thrown? Then I would increase the poll
> > >         frequency. 
> > > 
> > >         
> > > 
> > >         Any suggestions? 
> > > 
> > >         
> > > 
> > >         thanks 
> > > 
> > >         
> > > 
> > >         Soko 
> > > 
> > >         
> > > 
> > >         
> > > 
> > >         
> > >         _______________________________________________
> > > OvmsDev mailing list
> > > OvmsDev at lists.openvehicles.com
> > > http://lists.openvehicles.com/mailman/listinfo/ovmsdev
> > > 
> > >       
> > 
> >       
> > 
> >       
> >       
> > 
> >       
> >       _______________________________________________
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> > 
> >     
> 
>   
> 
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