MrPabloUK
commented
3 months ago Updated logic currently in testing. This logic is as follows:
- Implement cell penalties as a cell exceeds bulk voltage.
- Penalties should increase in severity as the cell overage increases, thereby reducing requested CVL.
- Penalties are applied per cell and cumulatively against CVL.
An example of how this impacts CVL can be found at: https://docs.google.com/spreadsheets/d/1UwZ94Qca-DBP5gppzKmAjbMJYZGjR4lMwZtwwQR9wWY/edit?usp=sharing Details as per the 'Charge Voltage - TESTING' worksheet.
Documentation to be added.
The current logic in v1.17.4 has the potential to maintain requested CVL below the balance trigger voltage, thereby preventing a battery from balancing enough to reduce cell voltage delta.
Example below:
An alternative approach is to allow full bulk voltage until a cell reaches a threshold, at which requested CVL is adjusted to reduce current flow enough for effective balancing.