To provide a battery deterioration degree prediction apparatus capable of predicting a degree of deterioration of a battery for traveling with high accuracy.SOLUTION: A controller of a battery deterioration degree prediction apparatus predicts a degree of deterioration of a target battery using map data where a plurality of groups into which a plurality of reference batteries are classified and coefficients representing rates of change in the degrees of deterioration of the reference batteries are associated with each other. The plurality of groups in the map data are classified by a trend of histories of a first group parameter included in a plurality of types of operation parameters of the reference batteries, and the coefficients in the map data are derived on the basis of the histories for the reference batteries and the degrees of deterioration of the reference batteries belonging to a group associated with the coefficients.SELECTED DRAWING: Figure 4
【課題】走行用バッテリの劣化度を高い精度で予測できるバッテリ劣化度予測装置を提供する。【解決手段】バッテリ劣化度予測装置のコントローラは、複数の参照バッテリを区分けした複数グループと、参照バッテリの劣化度の変化率を表わす係数と、が対応づけられたマップデータを用いて対象バッテリの劣化度の予測を行う。マップデータの複数グループは、参照バッテリの複数種類の動作パラメータに含まれる第1群パラメータの履歴の傾向ごとに区分けされ、マップデータの係数は、対応づけられたグループに属する参照バッテリの履歴及び劣化度に基づいて導出される。【選択図】図4
BATTERY DETERIORATION DEGREE PREDICTION APPARATUS
バッテリ劣化度予測装置
2023-09-07
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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