BQ40Z50-R2: GPCRB

Hello，

1. If The GPCRB tool is used after the learning cycle. So import gg_out.csv directly and then export the SREC file for mass production?

2. If cell is used, how do I export gg.csv? This still only works with PACK+PCBA.

3. The steps I mentioned before are before the learning cycle, which contradicts your first answer. According to your first answer, learning cycle is not required after GPCRB.

4. How to use The chemdat12_ file?

Thanks

Hi Sunrain,

1. Yes, after the GPCRB tool is used after the learning cycle, you would import gg_out.csv, program the chemdat12_ file through the use of the chemistry tab on bqStudio, and export the SREC for production.

2. I am unclear about this question. Exporting the gg.csv should not depend on if there is a cell or pack attached, as long as there is a power supply. Can you give some clarification about this?

3. My apologies, I was unclear of the steps previously stated. The learning cycle would be completed first, export the necessary files for the GPCRB tool, import the gg_out.csv and chemdat12_  file from the GPCRB tool back to the gauge, and the SREC can be created.

4. The chemdat12_ can be programmed by going to the bqStudio Chemistry tab and clicking the "Update Chemistry from external file" and then choosing the file.

Regards,

Anthony Baldino

Hello Anthony,

Thank you for your reply,I have three new questions.

1.There is a TI file that says GPCRB needs to be before learning, gg.csv needs to be without golden learning, and Ra flag needs to be 0XFF55, which is different from what you said.

2.Does the charge and discharge data need to be full cycle or just discharge? Should the charging and discharging currents be 0.5C and 0.2C, respectively, or should they be applied in practice?

3.Does "Update Chemistry from external file" mean "Program from GPCRB file"?

Thanks

Second problem, because my protection board is 4S, if the test CELL cannot output gg.csv

Hi Sunrain,

1. After getting outside council on this topic, the information I received is that the GPCRB tool can be used before or after the learning cycle, however, in both situations, the Ra table must be the default before being entered to the GPCRB tool. In this case, since the GPCRB tool uses measurements from the room temperature tests (the same the learning cycle does) and the low temperature tests, the Ra table values created from the GPCRB will be coherent and there is no need for the learning cycle. However, a learning cycle can be done first to see if the readings are accurate at low temperatures, to which if they are, there is no need to use the GPCRB tool. If the learning cycle has been completed prior and the low temperature values are not accurate, a .gg file with the default values can be entered to the GPCRB tool, and the room temperature Ra table values from the GPCRB tool can be compared to the values from the learning cycle and overwritten if necessary. I apologize for any confusion I may have caused.

2.The log data can be either full cycle or just discharge, as long as the post charge relax period is documented in the log. The charge should be done as it is normally is using CC/CV, and the discharge should be done at system typical high rate. The full instructions can be found below:

3. Yes, "Updating Chemistry from External File" is the same as "Program from GPCRB file".

Hello Anthony,

I have finished the test, but there is something wrong with my GPCRB-report. Why does the QMAX CEll change to 123910? At first, I thought it was the NumCellSeries setting problem, but after I set NumCellSeries to 1, the report could not be received, so it was not the problem. Please help confirm where the problem is, thankGPCRB-report1.rar you!1385.GPCRB.zip