This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ78350+BQ76921+BQ76200做CEDV后,计算容量14%跳变到7%,需要怎么调?

Other Parts Discussed in Thread: BQ76200, BQ78350

BQ78350+BQ76921+BQ76200做CEDV后,计算容量14%跳变到7%,需要怎么调?

1、我用5S2P 三星22PM的电芯,用0.2C和0.5C做数据后,学习OK后,按0.2C 0.5C放电,没有问题。但是按客户的要求

16A持续放电,跳变从22%跳到6%,有15%的跳变;

2、我用8A和16A做数据后,计算CEDV,做了常温的,直接复制为0度和45度的,计算的CEDV参数,按0.2C 0.5C放电,没有问题。

       按16A放电,从14%跳变到7%。

3、我用8A和16A在0度,25度、45度做了数据,计算CEDV后,按0.2C 0.5C放电,没有问题。而用16A放电,跳变跟之前一样,从22%跳到6%,有15%的跳变;

客户的放电模式如:525W(26A 100ms)==》359W(18A 15秒)==》316W(16A 持续到放完)

现在我应该怎么调这个值??

7%跳变的CEDV如下:

GPC CEDV tool, rev=51
Configuration used in present fit
ProcessingType=1
NumCellSeries=5
CellTermV=2900
LearnSOC%=7
FitMaxSOC%=9
FitMinSOC%=3
ChemType=1
ElapsedTimeColumn=0
VoltageColumn=1
TemperatureColumn=2
CurrentColumn=3

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 3164
EDVC0 101
EDVC1 0
EDVR1 1
EDVR0 1
EDVT0 5069
EDVTC 9
VOC75 19676
VOC50 19042
VOC25 18761

7462.1#.log