• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 38 subscribers
  • Views 286 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.

TIDA-010030: BQ34Z100 Calibation and learning cycles

EMRE KAMIŞÇI
Prodigy 205 points
Part Number: TIDA-010030
Other Parts Discussed in Thread: BQ34Z100

Hello forum.

We want to design a battery management system for our 14S lithium batteries. TIDA-010030 looks good choice for us because we want to get SOC and SOH results as well. I examined it and customized design for our requirements. I wanna ask one question. We want to make mass production for this board that we custiomized.For examle 50 BMS boards have 50 fixed 14S battery. Do we need to make calibration and learning cycles for all BMS system. Or  can  we calibrate and create calibration or/and learning cycle files and after upload other replicas?

Thanks in advance

Good days and jobs.

  • 0
    TI__Guru 54715 points

    Hi Emre,

    The components will have part to part tolerances, so calibration should be performed on each board so that the voltage and current measurement are correct.  Cells will usually have some variation also, but it is common to do a learning cycle on 1 pack, then copy the learned gauging setup to the production packs.  After calibration some manufacturers will cycle the battery for a learning update with those specific cells, some may chose to allow the learning cycle to occur in the field.

    Check the documents for the BQ34z100, but one flow may be:  

    Set parameters & run learning cycles on an example pack or packs in development.  Save the parameter and gauging setup file (see BQ34z100 information).

    For each pack in production:

    1. Load the parameter & gauging setup
    2. Calibrate
    3. Test, including run learning cycle if desired