SIMULATING BATTERY DYNAMICS WITH EQUIVALENT CIRCUIT MODELS
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United States of America Patent
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Mar 27, 2025
app pub date -
Sep 25, 2024
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Sep 25, 2024
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Abstract
Examples relate to a battery management system with an enhanced equivalent circuit model (ECM) for electric vehicles, including electric vertical takeoff and landing (eVTOL) aircraft. The system includes a memory to store an equivalent circuit model (ECM) configured to dynamically adjust a series resistance component in real-time based on operational data from a lithium-ion battery. This adjustment models lithium depletion effects under high discharge conditions. At least one processor is configured to continuously refine parameters of the ECM by analyzing discrepancies between predicted and actual battery performance, where the adjustments are based on real-time changes in state of charge, temperature, and current.
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