Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 17, 2019
Patent Application Number
15312779
Date Filed
March 18, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A degradation state estimating device includes: a Q calculator that receives inputs of the voltage, the current, and the battery temperature of a secondary battery, and calculates a discharge capacity; an OCV calculator that calculates an open-circuit voltage (OCV) value; and an OCV curve estimator that estimates at least one OCV curve. A state-of-charge estimating device includes an SOC estimator that estimates a state of charge (SOC) from the OCV curve and the open-circuit voltage (OCV) value estimated by the degradation state estimating device.
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