[Ovmsdev] OBD extended diag session

[Michael Balzer]

OK, you wrote "during charging". But are you certain the values are
those for the main battery, or can they possibly be for the DC converter…?


Am 18.08.20 um 11:54 schrieb Michael Balzer:
> Soko,
>
> 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.
>
> Regards,
> Michael
>
>
> Am 16.08.20 um 16:28 schrieb Soko:
>> Hi guys,
>>
>> Question for the CAN and ECU experts:
>>
>> I am logging into the battery charger ECU on my eUp via the extended
>> diag session code. Otherwise I get 7F as reply.
>>
>> I am interested in the power efficiency (pe) and power loss (pl) values.
>>
>> 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".
>>
>> 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.
>>
>> 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?
>>
>> Although when I dont send it at all I dont get even a value for pe
>> and pl, just the 7F error msg.
>>
>> 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...
>>
>> thx
>> Soko
>>
>> _______________________________________________
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>> OvmsDev at lists.openvehicles.com
>> http://lists.openvehicles.com/mailman/listinfo/ovmsdev
>
> -- 
> 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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