To provide a battery deterioration determination device, battery deterioration determination method, and battery deterioration determination program capable of highly accurately determining deterioration of a battery even in a case with insufficient data.SOLUTION: A center 12 includes: a data reception section 30 for receiving a state quantity of a battery 20 to be transmitted from an on-vehicle device 16; a deterioration index calculation section 41 for calculating a deterioration probability with the use of a predetermined physical model; an AI reliability determination section 32 for determining reliability of machine learning by an AI model based on the number of deterioration data pieces; a probability calculation section 42 for calculating a deterioration probability by defining a state quantity of the battery 20 as an input with the use of a data map generated by machine learning by the AI model; and a deterioration determination section 44 for determining deterioration of the battery 20 based on a calculation result of the deterioration index calculation section 41, a determination result of a reliability determination section 36, and a calculation result of the probability calculation section 42.SELECTED DRAWING: Figure 2
【課題】データが十分に揃ってない場合であってもバッテリの劣化を高精度に判定可能な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を提供することを目的とする。【解決手段】センタ12は、車載器16から送信されるバッテリ20の状態量を受信するデータ受信部30と、予め定めた物理モデルを用いて劣化確率を算出する劣化指標算出部41と、劣化データの数に基づいて、AIモデルによる機械学習の信頼性を判断するAI信頼性判断部32と、AIモデルによる機械学習により作成したデータマップを用いてバッテリ20の状態量を入力として劣化確率を算出する確率算出部42と、劣化指標算出部41の算出結果、信頼性判断部36の判断結果、及び確率算出部42の算出結果に基づいて、バッテリ20の劣化を判定する劣化判定部44と、を含む。【選択図】図2
BATTERY DETERIORATION DETERMINATION DEVICE, BATTERY DETERIORATION DETERMINATION METHOD, AND BATTERY DETERIORATION DETERMINATION PROGRAM
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
2021-08-30
Patent
Electronic Resource
Japanese
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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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