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dalathegreat / Battery-Emulator

This software enables EV battery packs to be used for stationary storage in combination with solar inverters.
GNU General Public License v3.0
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BYD Atto 3 Battery issue #590

Open Yousef9111 opened 2 weeks ago

Yousef9111 commented 2 weeks ago

BYD Atto 3 Battery issue

Actual Behavior

we use your emulator on BYD Atto 3 Battery we found that the real SOS is stuck on 94.90 or 77.50 and keep change from this tow SOC value even if i keep discharge the battery the value keep the same. we test that on other battery (BYD atto 3 ) and we have the same value so if you have a solution for that to use it

thanks,

Steps to Reproduce the Problem

1. 1. 1.

Settings

dalathegreat commented 2 weeks ago

Hi, This is normal behaviour, we estimate SOC% based on the battery pack voltage. This is the lookup table used:

image

When load is applied, voltage sags and the SOC% reading jumps.

The reason we estimate SOC% can be seen from the Wiki: https://github.com/dalathegreat/Battery-Emulator/wiki/BYD-Atto-3-battery

Long term, we will release a new version where you can switch to using actual battery SOC%, if your battery is not crashed and locked.