BMS Software Control and Signal Flow Architecture

Most explanations of a battery management system, including our own BMS overview, describe it stage by stage: here’s how coulomb counting works, here’s how a contactor gets driven, here’s what isolation resistance means This is useful, but it leaves out something engineers actually have to design: the order these pieces run in, and what gets … Read more

Sources of Error with the Coulomb Counting Method

SoC definition for Samsung SDI 94Ah cell

It is really important to understand the sources of error with the coulomb counting method as this forms the backbone for most SOC estimation algorithms. SoC Estimation by Coulomb Counting is based on the measurement of the current and integration of that current over time. There are five main sources of error with the coulomb … Read more