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BQ34Z100-G1: FCC only updating in relax mode not during discharge

Yunfeng TANG
Intellectual 300 points
Part Number: BQ34Z100-G1


Hello team,

I wonder why the fcc is not updating during discharge. The only document I found about the algorithme was slua450 (which is more about bq2750x...) . 

In this document fcc is to be updated at every grid point (ie resistance update during discharge). During our discharge cycle it never does. Only after a long relax period when ocv values are taken.

Is there something wrong with my settings? Here is a log file and a gg file.

Thank you verry much

Discharge high and low rate.log26052021.gg.csv

  • +1
    TI__Genius 10370 points

    Yunfeng,

    Our gauges have a feature called [Smooth] which by definition lock FCC to a static value durring discharge then adjust Remaining Capacity faster/slower to make sure SOC is a smooth decline. The gauge does also have "True FCC" which is always updating at specific points. If you want to see FCC adjust please disable the smoothing feature in the settings.

    Thanks,

    Eric Vos