To provide a battery device capable of detecting more accurately the battery status without requiring any special configuration for detecting the battery status.SOLUTION: A battery unit 10 as an example of an embodiment is applied to a power supply of a motor 21 mounted on an electric-assisted bicycle 1 for example. The battery unit 10 includes: a battery 11; means of measuring the discharge current of the battery 11 supplied to the motor 21; means for measuring the voltage of the battery 11; and a control unit 12 configured to calculate the internal resistance of the battery 11 based on the pulsation of the discharge current of the battery 11 and the fluctuation of the voltage accompanying the pulsation.SELECTED DRAWING: Figure 2
【課題】バッテリの状態を検出するための特別な構成を必要とせず、バッテリの状態をより正確に検出することが可能なバッテリ装置を提供する。【解決手段】実施形態の一例であるバッテリユニット10は、例えば、電動アシスト自転車1に搭載されるモータ21の電源装置に適用される。バッテリユニット10は、バッテリ11と、モータ21に供給されるバッテリ11の放電電流を計測する手段と、バッテリ11の電圧を計測する手段と、バッテリ11の放電電流の脈動、および当該脈動に伴う電圧の変動に基づいて、バッテリ11の内部抵抗を算出するように構成された制御部12とを備える。【選択図】図2
BATTERY DEVICE AND ELECTRIC-ASSISTED BICYCLE
バッテリ装置および電動アシスト自転車
06.05.2021
Patent
Elektronische Ressource
Japanisch
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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 |
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