PROBLEM TO BE SOLVED: To provide an electric power system capable of surely securing an opportunity to perform equalization processing with respect to an in-vehicle power storage device.SOLUTION: An electric power system 10 to be mounted on a vehicle comprises: a main battery 12 constituted by connecting a plurality of chargeable and dischargeable battery cells; a solar panel 18 for generating power by photovoltaic power; a solar charging device for charging the main battery 12 by power generated by the solar panel 18; an equalization circuit for performing equalization processing to discharge partial battery cells in order to eliminate a voltage dispersion among the plurality of battery cells; and a control section 30 being the control section 30 for controlling at least the drive of the equalization circuit and prohibiting the performance of equalization processing during charging/discharging of the main battery 12. When the non-performance time of equalization processing becomes equal to or more than a previously regulated reference time, the control section 30 exceptionally permits the performance of equalization processing during the execution of solar charging.SELECTED DRAWING: Figure 1
【課題】車載の蓄電装置に対して均等化処理を実施する機会をより確実に確保できる電源システムを提供する。【解決手段】車両に搭載される電源システム10は、充放電可能な電池セルを複数接続して構成されるメインバッテリ12と、太陽光によって発電するソーラパネル18と、前記ソーラパネル18で発電した電力で、メインバッテリ12を充電するソーラ充電装置と、前記複数の電池セル間の電圧バラツキを解消するために、一部の電池セルを放電させる均等化処理を実施する均等化回路と、少なくとも均等化回路の駆動を制御する制御部30であって、メインバッテリ12の充放電中は、均等化処理の実施を禁止する制御部30と、を備え、制御部30は、均等化処理の未実施時間が予め規定された基準時間以上となった場合は、例外的に、ソーラ充電実行中における均等化処理の実施を許可する。【選択図】図1
VEHICLE ELECTRIC POWER SYSTEM
車両の電源システム
2017-03-23
Patent
Elektronische Ressource
Japanisch
IPC: | 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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