PROBLEM TO BE SOLVED: To provide a vehicle power source device in which, even if a certain failure has occurred in a low-voltage battery during external charging, voltage necessary for executing a charging stop process of ending the external charging can be ensured at the low-voltage battery.SOLUTION: The vehicle power source device comprises a high-voltage battery, a low-voltage battery the voltage of which is lower than that of the high-voltage battery, and an inlet which is connected to an external power source. The vehicle power source device comprises charging control means for controlling charging of a charging target, which is at least either the high-voltage battery or the low-voltage battery, and a battery voltage sensor for detecting the voltage of the low-voltage battery. The power feeding connector is connected to the inlet, and power is supplied from the external power source to the charging target, and when the voltage value VL of the low-voltage battery becomes a charging stop threshold Vabort or lower during the power supply, the charging control means stops the power supply from the external power source to the charging target.SELECTED DRAWING: Figure 6
【課題】外部充電を行っている間に低圧バッテリに何らかの不具合が生じた場合であっても、外部充電を終了させる充電停止処理を実行するために必要な電圧を低圧バッテリに確保できる車両の電源装置を提供する。【解決手段】車両の電源装置は、高圧バッテリと、高圧バッテリより低電圧の低圧バッテリと、外部電源に接続するインレットと、を備える。高圧バッテリ及び低圧バッテリの少なくとも何れかである充電対象の充電を制御する充電制御手段と、低圧バッテリの電圧を検出するバッテリ電圧センサと、を備える。充電制御手段は、給電コネクタをインレットに接続し、外部電源から充電対象へ電力を供給している間に、低圧バッテリ電圧値VLが充電停止閾値Vabort以下になった場合には、外部電源から充電対象への電力の供給を停止する。【選択図】図6
VEHICLE POWER SOURCE DEVICE
車両の電源装置
2018-11-29
Patent
Elektronische Ressource
Japanisch
VEHICLE POWER-SOURCE DEVICE AND VEHICLE-POWER-SOURCE-DEVICE CONTROL METHOD
Europäisches Patentamt | 2016
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