PROBLEM TO BE SOLVED: To provide an evaluation device for a battery pack that can notify more accurate lifetime of a battery pack to a user.SOLUTION: An evaluation controller 104 executes charging control for charging a battery 12 up to a specified charge state, and executes discharging control for discharging the battery 12 from the specified charge state till a charge state of a management lower limit value. The evaluation controller 104 further calculates a first travelable amount. When the difference between a voltage difference representing the dispersion of the voltages of battery cells MA to MD when the battery 12 is in a predetermined charged state and a reference value of a predetermined voltage difference is not less than a predetermined value, the evaluation controller 104 predicts a second travelable amount representing a travelable amount when the evaluation value reaches a limit value, on the basis of the first travelable amount, the evaluation value and the predetermined limit value of the evaluation value. A display unit 110 notifies the difference between the first travelable amount and the second travelable amount as information on the lifetime of the battery 12.SELECTED DRAWING: Figure 2
【課題】より正確な組電池の寿命をユーザに知らせることができる組電池の評価装置を提供する。【解決手段】評価制御部104は、規定の充電状態まで電池12を充電する充電制御を実行し、規定の充電状態から管理下限値の充電状態まで電池12を放電する放電制御を実行する。評価制御部104は、さらに、第1の走行可能量を算出する。そして、評価制御部104は、電池12が所定の充電状態である場合の電池セルMA〜MDの電圧のばらつきを示す電圧差と予め定められた電圧差の基準値との差が所定値以上であるときは、第1の走行可能量、評価値、及び予め定められた評価値の限界値から評価値が限界値に達する時の走行可能量を示す第2の走行可能量を予測する。表示部110は、第1の走行可能量と第2の走行可能量との差を電池12の寿命に関する情報として報知する。【選択図】図2
EVALUATION DEVICE FOR BATTERY PACK
組電池の評価装置
2017-03-30
Patent
Electronic Resource
Japanese
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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