Systems and methods for estimating battery pack capacity during charge sustaining use

Systems and methods for estimating battery pack capacity during charge sustaining use

Systems and methods for estimating battery pack capacity during charge sustaining use are provided. System and methods for estimating a capacity of a battery are presented. In certain embodiments, charge and discharge current throughput data may be separately accumulated during operation of a batter...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JOON HWANG, DAMON R. FRISCH, PATRICK FROST, KURT M. JOHNSON
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES
ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:Systems and methods for estimating battery pack capacity during charge sustaining use are provided. System and methods for estimating a capacity of a battery are presented. In certain embodiments, charge and discharge current throughput data may be separately accumulated during operation of a battery system (e.g., during a charge sustaining operation of vehicle associated with the battery system). Charge and discharge voltage-based state of charge movement data may be further separately accumulated. Upon accumulating sufficient data, estimated charge and discharge battery capacities may be determined based on the accumulated data.