SoC Estimation

Owned by Kostubh Agarwal
Last updated: Sept 11, 2023
1 min read

It is impossible to directly measure the State of Charge (SoC) of a battery. The best we can do is infer the SoC.

Develop & validate a local SoC estimation technique.

Timeline

  1. Build a 36x1 pack to mimic the voltage of our pack (@Forest Zhou ) | September 30th

    1. this is a requirement for many critical path tasks, not just coulomb counting

    2. hook up voltage taps to AFEs

  2. Work with Mitch to figure out a few SoC estimation techniques which are locally viable (@Eric Zhao@Mitchell Langdon Ostler ) | October 31st

    1. implemented on an STM32?

      1. computational constraints?

  3. Develop a test plan (@Eric Zhao @Forest Zhou) | November 30th

  4. determine the actual capacity of 36x1 pack (@Forest Zhou) | Dec 1st

  5. hook up pack via MCU to the Motor (@Forest Zhou) | Dec 1st

    1. waiting on hardware…

    2. this is a requirement for many critical path tasks, not just coulomb counting

  6. test/validate SoC estimation technique (@Kostubh Agarwal @Forest Zhou @Eric Zhao )| January 31st, 2024

  7. parameter estimation and tuning (@Kostubh Agarwal | March 31st, 2024