Methods and systems for determining whether a voltage measurement is usable for a state of charge estimation

Methods and systems for determining whether a voltage measurement is usable for a state of charge estimation

Systems and methods for improvements in battery state of charge accuracy, charge termination consistency, capacity estimation, and energy delivery consistency. More specifically, embodiments herein detail systems and methods using an algorithm to calculate the change in state of charge for a given v...

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Bibliographische Detailangaben
Hauptverfasser: FRISCH DAMON R, FROST PATRICK, JOHNSON KURT M, STAWINSKI BRETT B, KOCH BRIAN J
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:Systems and methods for improvements in battery state of charge accuracy, charge termination consistency, capacity estimation, and energy delivery consistency. More specifically, embodiments herein detail systems and methods using an algorithm to calculate the change in state of charge for a given voltage change (dSOC/dV) at a given temperature in a region around the present voltage measurement or estimation and to set a signal indicating when the measurement should not be used due to potential error.