PROBLEM TO BE SOLVED: To provide a remaining battery capacity calculation system and a remaining battery capacity calculation method capable of accurately calculating the remaining capacity of a battery.SOLUTION: The present invention provides a remaining battery capacity calculation system 100 capable of calculating the remaining capacity of a battery 20, wherein the system is characterized in being provided with: a basic remaining capacity calculation unit 70 for calculating a basic remaining capacity using the initial capacity and the state of charge (SOC) of the battery 20; a degradation degree calculation unit 70 for calculating the degradation degree D of the battery 20; a first correction value calculation unit 70 for calculating a first correction value based on a capacity degradation state by using the degradation degree D; a second correction value calculation unit 70 for calculating a second correction value based on a discharge state by using a discharge current and the degradation degree D; and an actual remaining capacity calculation unit 70 for calculating an actual remaining capacity by using the basic remaining capacity, the first correction value, and the second correction value.
【課題】バッテリの実残容量をより正確に算出することができるバッテリ残容量算出システム及びバッテリ残容量算出方法を提供する。【解決手段】バッテリ20の残容量を算出可能なバッテリ残容量算出システム100において、バッテリ20の初期容量及びSOCを用いて基本残容量を算出する基本残容量算出部70と、バッテリ20の劣化度Dを算出する劣化度算出部70と、劣化度Dを用いて容量劣化状態に基づく第一補正値を算出する第一補正値算出部70と、放電電流I及び劣化度Dを用いて放電状態に基づく第二補正値を算出する第二補正値算出部70と、基本残容量、第一補正値及び第二補正値を用いて実残容量を算出する実残容量算出部70と、を備えることを特徴としている。【選択図】図1
REMAINING BATTERY CAPACITY CALCULATION SYSTEM AND REMAINING BATTERY CAPACITY CALCULATION METHOD
バッテリ残容量算出システム及びバッテリ残容量算出方法
2016-01-28
Patent
Electronic Resource
Japanese
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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