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  • Summary & Details

Preliminary demonstration of internal state estimations for batteries in an in-service EV using a nondestructive diagnosis technique

使用過程のEVを対象とした非破壊診断技術によるバッテリの状態推定

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Category(J)論文

Translation

Category(E)Paper
Author(J)1) 小鹿 健一郎, 2) 森田 朋和, 3) 織田 俊樹, 4) 本多 啓三
Author(E)1) Kenichiroh KOSHIKA, 2) Tomokazu MORITA, 3) Toshiki ODA, 4) Keizoh HONDA
Affiliation(J)1) 交通安全環境研究所, 2) (株)東芝, 3) 関西電力, 4) 電気安全環境研究所
Abstract(J)使用過程の電気自動車(2013年製造)に対してバッテリの非破壊診断法のひとつである充電曲線解析法を用いて駆動用バッテリの状態推定を行った.データサンプリング手法の違いや,解析方法の違いによってSOHの推定結果がどの程度の幅を持つかを明らかにした.また状態推定の結果からバッテリ劣化の特徴を分類した.

Translation

Abstract(E)Estimating internal states of batteries in an in-service EV was demonstrated with a nondestructive diagnosis technique. The impact of data sampling methods and analysis methods on estimation range of SOH in the charging curve analysis was revealed. The estimated internal state of batteries in the in-service EV with 60,000 km driving was displayed in a radar chart to recognize shape features visually and compared with ideal chart samples for estimating the main reason for battery degradation.

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