PROBLEM TO BE SOLVED: To accurately estimate the state of a storage battery.SOLUTION: Provided in a battery monitoring device (30) are: a steep change condition determination unit (301) for determining whether or not a current (I) flowing in a storage battery (10) or a voltage (V) of the storage battery (10) satisfies a steep change condition that there is a change exceeding a prescribed value within a prescribed time; a resistance function identification unit (302) for identifying, on condition that the steep change condition is satisfied, a resistance function (R(I)) that is a function of the internal resistance of the storage battery (10) to the current (I); and a specific current calculation unit (304) for calculating, using the identified resistance function (R(I)), a specific current (Ic) that is a current (I) at the time a specific load (14a) is connected to the storage battery (10).SELECTED DRAWING: Figure 2
【課題】蓄電池の状態を正確に推定できるようにする。【解決手段】蓄電池(10)に流れる電流(I)または蓄電池(10)の電圧(V)が、所定時間内に所定値を超える変化があった旨の急峻変化条件を満たしているか否かを判定する急峻変化条件判定部(301)と、急峻変化条件が満たされていることを条件として、蓄電池(10)の内部抵抗の電流(I)に対する関数である抵抗関数(R(I))を同定する抵抗関数同定部(302)と、同定された抵抗関数(R(I))を用いて、蓄電池(10)に特定負荷(14a)が接続された際の電流(I)である特定電流(Ic)を算出する特定電流算出部(304)と、を電池監視装置(30)に設けた。【選択図】図2
BATTERY STATE DETECTOR, VEHICLE, PROGRAM AND BATTERY STATE DETECTION METHOD
電池状態検出装置、車両、プログラムおよび電池状態検出方法
2017-11-16
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 |
RECHARGEABLE BATTERY STATE DETECTOR AND RECHARGEABLE BATTERY STATE DETECTION METHOD
European Patent Office | 2020
|LEAD ACID BATTERY STATE DETECTOR AND LEAD ACID BATTERY STATE DETECTION METHOD
European Patent Office | 2020
|European Patent Office | 2020
|