Other Parts Discussed in Thread: GPCCEDV
Tool/software:
Dear Expert
Question 1: The OCV parameters in the OCV11.txt sent back by ti have a significant error compared to the actual values. Is there any way to optimize them.
Question 2: In the case where the gauge loses power and the FCC is lost every time, can we record the learned FCC in the MCU and write it back every time the power meter is powered on.
GPC CEDV tool, rev=61 Configuration used in present fit ProcessingType=1 NumCellSeries=1 CellTermV=2700 ChemType=1 VoltageColumn=1 CurrentColumn=2 TemperatureColumn=3 ElapsedTimeColumn=0 FitMaxSOC%=12 FitMinSOC%=6 LearnSOC%=7 CEDV parameters resulting from the fit. If EDVV bit is set to 1, EMF and EDVR0 have to be multiplied by the number of serial cells when written to data flash EMF 3402 EDVC0 115 EDVC1 0 EDVR1 493 EDVR0 2652 EDVT0 3941 EDVTC 11 VOC75 3935 VOC50 3808 VOC25 3752 Recommended SOC deviation tolerance at EDV2 point is < 5% for low temperature and <3% for room and high temperature Deviations for this set of parameters are given below for each file file SOC error, % pass roomtemp_lowrate.csv -0.971464005905691 1 roomtemp_highrate.csv -4.52499502979749 1 hightemp_lowrate.csv -0.769013429803439 1 hightemp_highrate.csv 3.9296642349732 1 lowtemp_lowrate.csv 2.41399268216828 1 lowtemp_highrate.csv -0.271039778343413 1 Deviations are within recomended range. CEDV parameters are suitable for programming the gauge
SOC, % OCV, mV 0 2703 10 3160 20 3260 30 3324 40 3379 50 3450 60 3543 70 3623 80 3707 90 3791 100 3864
And our electricity meter often loses power, so we can record the learned capacity in eerom by ourselves. Do you write it back when initializing the gauge during power on
