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BQ34Z100确认电池化学ID,log数据计算不出ID值

我用的电池是6串1并的电池电压标称22.2V容量22000mah

经过充放电后生成log数据文件,可是计算不出ID值。。。

log数据包括充放电过程是先10A恒流充满后静置两个小时,然后4A放电,然后静置5个小时。

shi zi:

是不是可以使用单节电芯获取测量数据然后计算CHEMID呢?我正想问这个问题 

fang zhang1:

回复 shi zi:

我用的EV2300.单片机就不知道了

zehua hu:

回复 shi zi:

CHEM-ID可以使用单节电芯测试。

fang zhang1:

回复 zehua hu:

你是把电压数据除以6,电流除以2之后再去计算的吗?

zehua hu:

回复 fang zhang1:

电压除以6了,为什么要把电流除以2呢?

fang zhang1:

回复 zehua hu:

    电池包是6串1并的额。。。

fang zhang1:

回复 zehua hu:

我想请问关于BQ34Z100经过学习过程之后Update Status为06,如果我不再需要学习了,直接拿去用,那我是不是还要把Update Status改成00啊?还是不用管?

zehua hu:

回复 fang zhang1:

fang,

update status为6后,接下来要做的是导出量产文件,也就是Golden Image File,导出后用记事本打开将update改为0X02。这个在datasheet中有说明的。

“Qmax and Ra data are learned, but Impedance Track is not enabled. This should be the standard setting for a Golden Image File.”

fang zhang1:

回复 zehua hu:

hu :

      我是这样理解的:update status为6后,导出DataFlash的gg文件,用记事本打开修改Update Status为0x02,Cycle Count为0 。然后再导入修改后的gg文件。再Golden Image File生成DFI,dffs文件。

      是这样吗?还是先Golden Image File之后再导出gg文件进行修改后导入?

 

     还有,我在Configuring the bq34100 Data Flash文件中看到Update Status寄存器的介绍

Three bits in this register are important:

Bit 2 (0x04) indicates whether the Impedance Track™ algorithm is enabled.
Bit 1 (0x02) indicates that the bq34z100 has learned optimized values for Qmax and the Ra tables during a learning cycle.
Bit 0 (0x01) indicates that the bq34z100 has learned an initial value for Qmax after the charging portion of a learning cycle.

 

At the beginning of a learning cycle when creating a golden DFI file in bqEASY™, Update Status will start at 0x00. When IT is enabled with the IT_ENABLE subcommand being sent to Control(), Update Status will automatically be changed to 0x04. After the charge and relaxation portion of the learning cycle are complete, Update Status should have become 0x05. Finally, after the discharge and relaxation portion of the learning cycle, Update Status will become 0x06 if the learning cycle was successfully completed. A golden DFI file can then be generated in the final step of bqEASY if Update Status was successfully set to 0x06 by the gauge.

When the golden DFI file is created by bqEASY, bit 2 will be cleared, leaving Update Status = 0x02. Note that none of these bits should be manually changed. IT must be enabled only by sending the IT_ENABLE subcommand to the Control() register.

        这句是说的生成DFI后Update Status 的 BIT2 自动清除 Update Status = 0x02,那就是说不需要手动修改吧。。。我是不是理解错了。

        还请解答,谢谢!

    

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