Reduce self.control_discharge_current due to low voltage

[mascheihei]

Hi Louis,

I currently making some changes at the end of the discharge section and it would override the discharge current.

Reason: Discharge depending on low voltage of a cell should have a higher priority, SoC could be a wrong estimation

Especially in a longer winter time without full charge for several weeks the SoC of the BMS could be wrong. Therefore I would propose to monitor the cell voltage and disable or reduce discharge if any cell_voltage drops below MIN_CELL_VOLTAGE. Of course a kind of hysteresis has to be built in. This should be added to the function manage_charge_voltage.

What's your view?

regards
Markus

[Louisvdw]

Hi
There is a similar ticket #249 that would be doing what you want. The SOC is not perfect, but a less complicated way of implementing it.
Most BMS would adjust the SOC value when an overvoltage/undervoltage happens on a cell. But by that time it is a bit late for the charge limits to help, so it is worth looking into this.

[WaldemarFech]

@mascheihei ... check this out:
Implemented CCL/DCL depending on cell-voltage #293
##293

here is a short description:
##233 (comment)

here is how to use it already:
##233 (comment)

[mascheihei]

We can close here - Waldemar's solution is a better version of my idea