BATTERY CHARACTERISTICS ESTIMATION DEVICE, BATTERY CHARACTERISTICS ESTIMATION METHOD, AND PROGRAM

JP7630632B2Active Publication Date: 2025-02-17HONDA MOTOR CO LTD
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Patent Information

Application Number
JP2023551581
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-09-28
Filing Date
2022-09-28
Publication Date
2025-02-17
Estimated Expiration
2042-09-28

AI Technical Summary

Benefits of technology

【0015】 (1)~(9)の態様によれば、バッテリの特性を高精度に推定することができる。

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Abstract

This battery characteristic estimating device comprises: an acquiring unit for acquiring time-series data including at least an electric current value and a voltage value of a battery; a data filter unit for extracting, from the acquired time-series data, data in which a voltage change caused by charging and discharging is small, as estimation data; and an OCV curve estimating unit for estimating, on the basis of the estimation data extracted by the data filter unit, an OCV curve representing an open circuit voltage with respect to a discharge capacity calculated on the basis of the electric current value of the battery.
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Citation Information

Patent Citations

  • Power battery open-circuit voltage model fusion method

    CN112114254A

  • Secondary battery state-of-charge estimator and state-of-charge estimating method

    JP2011215151A

  • Calculation method, calculation program, calculation system, and calculation device

    JP2012251806A

  • Device for estimating parameters of equivalent circuit for vehicle secondary battery

    JP2015224919A

  • State-of-charge calculation apparatus

    JP2016045025A