JP2021124420A - バッテリ劣化判定装置、バッテリ劣化判定方法、及びバッテリ劣化判定プログラム - Google Patents
バッテリ劣化判定装置、バッテリ劣化判定方法、及びバッテリ劣化判定プログラム Download PDFInfo
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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Abstract
Description
12 センタ
14 車両
16 車載器
20 バッテリ
22 バッテリ情報取得部(取得部)
30 データ受信部(取得部)
32 データ更新部
34 データ更新可否判断部
36 データ作成部
40 データ演算部
42 確率算出部(導出部)
44 劣化判定部(判定部)
Claims (7)
- 車両に搭載されたバッテリの状態量を取得する取得部と、
前記取得部が取得した前記状態量と、予め定めた計算モデルとに基づいて、予め定めた短期で前記バッテリが劣化する短期劣化確率、前記短期より長い中期で前記バッテリが劣化する中期劣化確率、及び前記中期より長い長期で前記バッテリが劣化する長期劣化確率の各々を導出する導出部と、
前記計算モデルの学習に用いられるデータとしての前記状態量の数が少ないほど前記長期劣化確率から算出される前記短期と前記中期を合わせた劣化確率の重みを高く設定し、前記状態量の数が多いほど前記短期劣化確率の重みを高く設定して、前記導出部の導出結果に基づいて、前記バッテリの劣化を判定する判定部と、
を含むバッテリ劣化判定装置。 - 前記判定部は、前記状態量の数が予め定めた閾値未満の場合に、前記長期劣化確率から算出される前記短期と前記中期を合わせた劣化確率に基づいて前記バッテリの劣化を判定し、前記状態量の数が前記閾値以上の場合に、前記短期劣化確率に基づいて前記バッテリの劣化を判定する請求項1に記載のバッテリ劣化判定装置。
- 前記計算モデルは、学習開始時は、対象の車両とは異なる別車両に搭載された劣化したバッテリの状態量、及び対象車両の劣化していないバッテリの状態量を教師データとして含んで学習し、学習の経過に伴って、前記別車両に搭載されたバッテリの状態量を前記対象の車両の劣化したバッテリの状態量に入れ替えて学習する請求項1又は請求項2に記載のバッテリ劣化判定装置。
- 前記計算モデルは、学習の経過に伴って、前記対象の車両の劣化したバッテリの状態量の増加と共に、前記対象の車両の劣化していないバッテリの状態量を減少させて学習する請求項3に記載のバッテリ劣化判定装置。
- 前記取得部は、車両に搭載されたセンサによって検出された前記状態量を取得する請求項1〜4の何れか1項に記載のバッテリ劣化判定装置。
- バッテリの状態量を取得して、取得した前記状態量と、予め定めた計算モデルとに基づいて、予め定めた短期で前記バッテリが劣化する短期劣化確率、前記短期より長い中期で前記バッテリが劣化する中期劣化確率、及び前記中期より長い長期で前記バッテリが劣化する長期劣化確率の各々を導出し、
前記計算モデルの学習に用いられるデータとしての前記状態量の数が少ないほど前記長期劣化確率から算出される前記短期と前記中期を合わせた劣化確率の重みを高く設定し、前記状態量の数が多いほど前記短期劣化確率の重みを高く設定して、導出した前記短期劣化確率及び前記長期劣化確率に基づいて、前記バッテリの劣化を判定する処理をコンピュータに実行させるバッテリ劣化判定方法。 - コンピュータに、
バッテリの状態量を取得して、取得した前記状態量と、予め定めた計算モデルとに基づいて、予め定めた短期で前記バッテリが劣化する短期劣化確率、前記短期より長い中期で前記バッテリが劣化する中期劣化確率、及び前記中期より長い長期で前記バッテリが劣化する長期劣化確率の各々を導出し、
前記計算モデルの学習に用いられるデータとしての前記状態量の数が少ないほど前記長期劣化確率から算出される前記短期と前記中期を合わせた劣化確率の重みを高く設定し、前記状態量の数が多いほど前記短期劣化確率の重みを高く設定して、導出した前記短期劣化確率及び前記長期劣化確率に基づいて、前記バッテリの劣化を判定する処理を実行させるためのバッテリ劣化判定プログラム。
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JP2020018737A JP7314822B2 (ja) | 2020-02-06 | 2020-02-06 | バッテリ劣化判定装置、バッテリ劣化判定方法、及びバッテリ劣化判定プログラム |
US17/131,963 US11460514B2 (en) | 2020-02-06 | 2020-12-23 | Battery degradation evaluation system, battery degradation evaluation method, and non-transitory storage medium storing battery degradation evaluation program |
EP21150462.6A EP3862765B1 (en) | 2020-02-06 | 2021-01-07 | Battery degradation evaluation system, battery degradation evaluation method, and battery degradation evaluation program |
CN202110032169.5A CN113219338B (zh) | 2020-02-06 | 2021-01-11 | 电池劣化判断系统、方法及存储有程序的非临时性存储介质 |
US17/895,591 US11675020B2 (en) | 2020-02-06 | 2022-08-25 | Battery degradation evaluation system, battery degradation evaluation method, and non-transitory storage medium storing battery degradation evaluation program |
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WO2023286650A1 (ja) * | 2021-07-15 | 2023-01-19 | 恒林日本株式会社 | 電池劣化推定装置の検証方法、装置、デバイス、媒体及び電池劣化推定計算モデル |
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EP3862765B1 (en) | 2023-06-21 |
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US11460514B2 (en) | 2022-10-04 |
CN113219338A (zh) | 2021-08-06 |
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