To highly accurately estimate deterioration state of a secondary battery included in a vehicle.SOLUTION: A deterioration state estimation system comprises: an acquisition part acquiring, for each of a plurality of deterioration causes of a secondary battery mounted in a vehicle, correlation information correlated with progress of deterioration of the secondary battery; a storage part storing, for each of the plurality of deterioration causes, relevant information indicating relation between the correlation information and state of health (SOH) of the secondary battery; and an estimation part estimating the SOH of the secondary battery or a reduction rate of the SOH of the secondary battery on the basis of the correlation information acquired by the acquisition part and correlation information stored in the storage part.SELECTED DRAWING: Figure 5
【課題】車両が有する二次電池の劣化状態を高精度に推定する。【解決手段】本発明に係る劣化状態推定システムは、車両に搭載される二次電池の複数の劣化原因毎に前記二次電池の劣化の進行に相関する相関情報を取得する取得部と、複数の前記劣化原因毎に、前記相関情報と前記二次電池のSOHとの関係を示す関係情報を記憶する記憶部と、前記取得部が取得した相関情報と、前記記憶部に記憶されている相関情報とに基づいて前記二次電池のSOH又は前記二次電池のSOHの減少率を推定する推定部と、を備える。【選択図】図5
DETERIORATION STATE ESTIMATION SYSTEM, DETERIORATION STATE ESTIMATION DEVICE, AND DETERIORATION STATE ESTIMATION METHOD
劣化状態推定システム、劣化状態推定装置、及び劣化状態推定方法
2024-10-09
Patent
Electronic Resource
Japanese
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G16Y / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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