• State
  • Locked Locked
  • Replies 7 replies
  • Subscribers 63 subscribers
  • Views 2757 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

bqstudio 1.3.42 and bq34z100-g1

MickaelWhite
Prodigy 240 points
Other Parts Discussed in Thread: BQSTUDIO

Hi,

After  calibration and measurrments on a Lead Acid battery with bqstudio tool, I have to do the same thing with Ni-MH battery.  I updated with a new profile and modified somme parameters then I have executed  "write_all" in data flash.

Several problems:

  • I don't know how reset cycle count
  • about "Cycle count", why are there two cycle count parameters : one in Gas Gauging parameters, another in  Configuration parameters
  • I can't do calibration of voltage, temperature ..., I get the message :"calibration - Failed to enter calibration mode with command 0x2D".
  • I can't modify device chemistry parameter to write Ni-MH instead PbAc for example.

It seems that I miss an initialisation tutorial when getting a new battery.

Thank you for help

Mickael

  • 0
    TI__Guru 73830 points
    You will need to export a gg.csv file and set to Cycle Count parameters to zero in that file. You can also set Update Status to 00 in that file. You will then need to reload the default srec file to initialize the device. Since you are changing the cell chemistry, you will load the modified gg file next and then the new ChemID. You load them in this order so that the Ra table for the NiMH cell does not get overwritten with the PbA Ra table. You can then change parameters, calibrate, Enable IT and proceed.

    There are two Cycle Count parameters, because one indicates how many cycles have passed and the other one indicates the last cycle where a QMax update occurred.
  • 0 in reply to ThomasCosby
    Prodigy 240 points
    Thank you Tom.
    It's all right.
    I only had a problem wtih the VOLSEL flag of the pack configuration which was 0, and I didn't see it, also the voltage calibration got a message "cell voltage correction is beyond allowed range". I set the VOLSEL flag in the Pack Configuration usiing the Data Memory Read/Write Data Memory Contents. It's OK.

    Now, I have to proceed Qmax and Ra Table calibration for NiMH battery. Could you give me the optimization cycle process for this family of battery (10 cells of Saft VH DL 9500 XP 1.2V 9Ah ?

    About the Lead acid Battery, have you received the .srec and .log files and have you been able to apply Mathcad programs on them ?

    Mickael
  • 0 in reply to MickaelWhite
    TI__Guru 73830 points
    The optimization procedure for NiMH will be the same as the one used for PbA. the charge termination criteria is different. NiMH uses deltaT or deltaV for charge termination, where PbA uses taper current. I do not recall receiving the srec and log for the PbA case. What type of applications are you designed these packs to support?
  • 0 in reply to ThomasCosby
    TI__Guru 73830 points
    I found the PbA data and will review it.
  • 0 in reply to ThomasCosby
    Prodigy 240 points

    Hi Tom,

    To find the best chemical ID for my NiMH battery, I submitted the followed files to GPC tool.

    Each time I received the same report :

    Error: Computation was not successful, but the specific reason was not identified.

           Please check that all files are prepared according to the documentation.
           The support personnel have been informed

    I send the original .log got with bqStudio, built following the steps of charge, relax, discharge and relax.

    Thank you to look at the file and explain me why is not correct.

    Mickael White

    bqStudio Original log.zip

    first attempt .zip

    second attempt.zip

  • 0 in reply to MickaelWhite
    TI__Guru 73830 points
    Mickael
    We may not have a good match to your cell and it will need to be characterized. You could try ChemID 6103 to see how well it performs. I checked it with another Mathcad program and it shows that there is a potential that it will work. Otherwise, provide an email address and I will send instructions for submitting cells for characterization.

    Tom
  • 0 in reply to ThomasCosby
    Prodigy 240 points
    Tom,

    Thank you for your answer.
    ChemID 6103 is which one I use. Thank you to use these 2 email adresses mblanc@centralp.fr and lamichele.blanc@gmail.com.

    Mickael White