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.

BQ4050EVM-561: 0℃ 0.5C放电 FCC不更新

Part Number: BQ4050EVM-561
Other Parts Discussed in Thread: GPCCEDV

0℃ 0.5C放电 FCC不更新

不论EDV_CMP是否开启,FCC在低温(0℃)放电都不更新,MaxError=100%。这也导致RSOC误差很大,当EDV_CMP=1时,RSOC放不空,停在了26%;而当EDV_CMP=0时RSOC会从47%一下子跳变到3%

  • 4050_1221.gg.csv

    GPC CEDV tool, rev=60		
    Configuration used in present fit		
    ProcessingType=1		
    NumCellSeries=1		
    CellTermV=2500		
    ChemType=4		
    ElapsedTimeColumn=0		
    VoltageColumn=1		
    CurrentColumn=2		
    TemperatureColumn=3		
    FitMaxSOC%=8		
    FitMinSOC%=2		
    LearnSOC%=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	3444	
    EDVC0	440	
    EDVC1	0	
    EDVR1	135	
    EDVR0	2909	
    EDVT0	5387	
    EDVTC	11	
    VOC75	3317	
    VOC50	3291	
    VOC25	3240	
    		
    		
    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	-0.266374776273926	1
    roomtemp_highrate.csv	0.468102127373709	1
    hightemp_lowrate.csv	-0.352387873254699	1
    hightemp_highrate.csv	0.401895401514476	1
    lowtemp_lowrate.csv	1.64879727097567	1
    lowtemp_highrate.csv	-0.551277065952978	1
    		
    Deviations are within recomended range. CEDV parameters are suitable for programming the gauge		
    		
    
    这是配置文件 和GPC工具反馈的报告

  • 您好,您的报告是正常的,下图充电电压设置有冲突,建议确认您的参数设置。

  • 你好,Star Xu  我测试的时候 充电都是在常温下充满后,在低温下放电,这个低温充电电压设置会对FCC更新有影响?

  • 抱歉,由于工程师休假,她将会在元旦假期后回复您的问题。

  • 您好,在常温和高温下放电FCC是否更新正常。

  • 你好常温放电FCC更新正常

  • 您好,CEDV的相关参数是否配置,可以通过GPCCEDV tool 计算。

  • 你好,我不是一开始就上传了GPC工具反馈的报告了,我是按照报告上的参数配置的。并且也上传了gg配置文件

  • 您好,FCC在0度不更新的问题已经在E2E英文论坛发帖,请继续关注该贴。

    e2e.ti.com/.../bq4050-fcc-not-update