Battery Status Report - MyLab-odyssey/ED_BMSdiag GitHub Wiki
Get a Battery Status Report to see an overview of the battery condition. From the main menu please use command rpt to initiate a report about the battery status:
ENTER command... (? for help)
CMD >>rpt
The system will gather the available data from the car.
Reading data....................OK
And will display a short report:
-----------------------------------------
--- Battery Status Report ---
-----------------------------------------
Time [hh:mm]: 20:57, ODO : 30813 km
Battery Status : OK
Battery-Production [Y/M/D]: 2013/9/29
Battery verified [Y/M/D]: 2013/9/30
realSOC : 74.5 %, SOC: 74.5 %
Charged Capacity : 46.8 Ah, min. Cell# 6
BMS estimate : 47.9 Ah, value @25degC
Measurement done : 0 day(s) ago
Estimation factor: 0.803, good
OCV timer : 1934 s, @21.8degC
OCV state : HV ON, can't meas. OCV
DC isolation : 5813 kOhm, OK
Voltage Distribution (dV= 74 mV):
*--->-----------[====|==]-----------<---*
3843 01 > [3873; 3882; 3888] < 03 3917
min [p25; median; p75] max
-----------------------------------------
CMD >>
You will see the overall status of the battery (Battery Status : [OK | FAULT] ) and a summary of the BMS measurements. For a detailed description please refer to the Data Overview section.
Some measurements will get a comment to rate the displayed value:
| measurement | rating | remark |
|---|---|---|
Estimation factor |
BMS estimate of the measurement quality for the charged capacity. | |
| > 0.85 | excellent | |
| > 0.82 | very good | |
| > 0.80 | good | |
| > 0.78 | fair | You need a larger dSOC, so start test below 20% SOC. |
| <= 0.78 | poor | Don't trust the measurement and redo it. Watch out for OCV state to be OK! |
OCV state |
Open Circuit Voltage (as steady state of the pack). | |
OK |
OCV state achieved |
|
Ready for cap. meas. ! |
OCV state achieved and SOC < 20%, ready for a good capacity measurement. |
|
wait for |
[hh:mm] | Time to wait for OCV state. |
| [mm:ss] | ... | |
| [sec] | OCV timer will not count down, so the HV OFF timer will be displayed here. |
The Voltage Distribution will show if the battery is balanced well. The cell voltages of the pack will be displayed in a Box Plot to visualize the balancing level. Here is an example of a badly balanced battery - for more information please refer to the Data Overview section:
