DETERIORATION DIAGNOSIS APPARATUS, DETERIORATION DIAGNOSIS METHOD, AND DETERIORATION DIAGNOSIS SYSTEM FOR BATTERY

To provide an apparatus, a method and a system for diagnosing the degree of deterioration from an operation history of an actual product even without obtaining a deterioration constant with respect to battery voltage and temperature beforehand in an experiment or the like, while in the conventional...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ONDA HIROOMI, KAWAHARA YOHEI, ASAKURA RYOJI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:To provide an apparatus, a method and a system for diagnosing the degree of deterioration from an operation history of an actual product even without obtaining a deterioration constant with respect to battery voltage and temperature beforehand in an experiment or the like, while in the conventional battery deterioration diagnosis it is necessary to prepare in advance a deterioration characteristic map showing the distribution of deterioration constants with respect to battery voltage and temperature, which is time-consuming and costly.SOLUTION: A battery deterioration diagnosis apparatus comprises: a communication unit that collects battery status; an operation history storage unit for storing the battery status; a characteristic measurement unit that measures changing characteristics from the battery status due to deterioration of the battery; a characteristic fluctuation model creation unit for creating a model of the relationship between the characteristics and the battery status; and a battery deterioration diagnostic unit for diagnosing deterioration of the battery on the basis of an estimated value relating to the characteristics calculated based on the model.SELECTED DRAWING: Figure 1 【課題】電池の劣化診断に関し、従来は、電池電圧と温度に対する劣化定数の分布を示す劣化特性マップを予め作成しておく必要があり、時間とコストがかかっていた。本発明の目的は、実験などで予め電池電圧と温度に対する劣化定数を求めなくても、実際の製品の稼動履歴から、劣化の度合いを診断する装置、方法、及びそのシステムを提供することである。【解決手段】電池の劣化診断装置であって、電池の状態を収集する通信部と、電池の状態を記憶する稼動履歴記憶部と、電池の状態から電池の劣化によって変化する特性を測定する特性測定部と、特性と電池の状態の関係のモデルを作成する特性変動モデル作成部と、モデルに基づいて計算される特性に関する推定値に基づいて電池の劣化を診断する劣化電池診断部とで構成する。【選択図】 図1