TI中文支持网Other Parts Discussed in Thread:GPCCEDV
您好，我上次说的放电一直停在2%的电池组，现在把SME0/SMEN/SMEXT/FIX_EDV0置0后，现在SOC可以放到0了。但是这个SOC到0怎么去配置EDV。SOC到0的对应电压值和EDV0/FD都对不上。请问应该怎么去配置。现在到0的电压太高了，计算容量不够。
链接为上次的问题：e2echina.ti.com/…/200327，
4744.3S1P20210324 2A.log
4010.20210324 gg.txt
* Texas Instruments Data Flash File * File created Wed Mar 24 10:18:30 2021 * * Device Number 9E34 * Firmware Version 0.01 * Build Number 22 * Order Number 0 * * bqz Device Number 9e34 * bqz Firmware Version 0.01 * bqz Build Number 22 * * Field Order: Class name, Subclass name, Parameter name, Parameter Value, Display Units "Calibration","Voltage","Cell Gain","12161","-" "Calibration","Voltage","Pack Gain","49619","-" "Calibration","Voltage","BAT Gain","49074","-" "Calibration","Current","CC Gain","2.089","mOhm" "Calibration","Current","Capacity Gain","2.089","mOhm" "Calibration","Current Offset","CC Offset","0","-" "Calibration","Current Offset","Coulomb Counter Offset Samples","64","-" "Calibration","Current Offset","Board Offset","0","-" "Calibration","Current Offset","CC Auto Config","07","hex" "Calibration","Current Offset","CC Auto Offset","1","-" "Calibration","Temperature","Internal Temp Offset","0","°C" "Calibration","Temperature","External1 Temp Offset","0","°C" 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Star Xu：
您好
If using fixed EDV (EDV_CMP = 0) you need to set the EDV2, EDV1, and EDV0 values from a discharge log.
If using CEDV (EDV_CMP = 1) you need to have the CEDV parameters which were calculated by the GPCCEDV tool from your 6 discharge cycles loaded.
,
user6014640：
你好，FD和TD参照那个的，关键是貌似没按这个来。
EDV_CMP=0是按照EDV设置值，如果EDV_CMP=1，那么EDV设置值没用是吧？我的值都是按照GPCCEDV算出来的
EMF 3114
EDVC0 23
EDVC1 0
EDVR1 1143
EDVR0 662
EDVT0 5246
EDVTC 11
VOC75 9950
VOC50 9873
VOC25 9715
但是EDV0,1,2 = n (EMF • FBL – | ILOAD | • R0 • FTZ)这个公式没明白，不知道EDV是按照我本来电芯曲线设置还是这个公式去计算。
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Star Xu：
您好，EDV_CMP=1，EDV参数会自动更新。EDV0,1,2可以通过放电数据来计算
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user6014640：
我EDV_CMP=1，测试容量不够。如果EDV_CMP=0，容量倒是足够，有组还超了，但是SOC有停在2%或者3%了，到不了0，晕了。TI除了规格书有专门的指导文件吗？
,
Star Xu：
您好，fix EDV的计算，请参考下面帖子的内容，希望对您有帮助。
e2e.ti.com/…/bq78350-r1-how-to-set-fixed-edv0-1-2
