Re: DB ID.3 Pro Performance 58 - cfvp
Enviado: 09 set 2026, 17:37
Baseado no que ja vi e li naquele forum, eu veria alternativas ao carscanner para medir o SOH..
A oscilação do MEC com car scanner não é fiável para obter SOH correcto pois depende da temperatura e da velocidade de carga
A oscilação do MEC com car scanner não é fiável para obter SOH correcto pois depende da temperatura e da velocidade de carga
The assumptions come from various forums with log files, which I have evaluated by AI:
OpenInverter-Forum, GoingElectric.de, IDTalk.de, MEBCoding, etc.
→ Many users have logged OBD data there for months (CarScanner, EVNotify, CAN logs), in particular:
Changes in the MEC in balancing, deep discharge, cell exchange
Reactions of the MEC on temperature, SoC, cell voltage
→ From this, conclusive behavioral models were derived, e.g. B.:
MEC drops at temporarily high internal resistance
MEC starts after deep discharge or balancing
MEC changes depending on cell deviation
What is NOT known (not public):
The exact mathematical algorithm for the MEC calculation in the BMS (VW/Bosch BMS)
The weighting of temperature, charge cycles, cell deviation in the SoH model
Whether MEC is calculated as a result of an integration curve via cell OCV (open circuit voltage)