Hello,
I am trying to do a SOC estimation of a lead-acid battery (12v and 17AH) using the Kalman filter method. I have my data from an stm32 controller (Cell voltage, pack current and cell temperature). From online research, i have to build a battery model and extract parameters and stuff. But i got an example model in matlab which uses a function to estimate the SOC using the Kalman method. Another option is the Kalman SOC block in simulink. The set back i have is, both methods require an SOC-OCV, temperature lookup table from which i can extract the various parameters (Rt, R1, R2, C1, C2 and SOC) relative to temperature and OCV. The tables used for these models are for a 4.2 volts lithium ion battery which are of not of interest to me.
Any ideas on how to get these lookup tables will be very helpful. Actually I really just need an accurate SOC estimation. It is necessary for my work to go forward but not the main focus of my work so other contributions will also help.
Bellow is the function I am using with its lookup tables that do not match my requirements.
Thanks
