Northeastern-Electric-Racing / Shepherd-BMS

Our from-scratch Battery Management Application
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Create Accurate SoC percent calculations #121

Open jr1221 opened 2 weeks ago

jr1221 commented 2 weeks ago

Description

Create accurate SoC calcs using online equations for our cells. Should be done in a way easily transferable to 24A.

Acceptance Criteria

SoC is accurate.

Proposed Solution

Use a polynomial approximation or something based on this discharge curve per cell, and then somehow combine that to get overall SoC (probably use low cell?).

jr1221 commented 2 weeks ago

We have calcs they just don't work. Let's fix them

dyldonahue commented 5 days ago

to expand, we have a "curve" that linearly extrapolates soc from a few values. This either doesn't work right, or the curve values do not produce an accurate voltage to SoC conversion, or a combination of both