POWER CONVERSION DEVICE

To provide a power conversion device that prevents overcharge of an on-vehicle battery to suppress an occurrence of abnormality during charging.SOLUTION: Provided is a battery support device 10 to be connected to an on-vehicle battery E1 that supplies power to a starter 101, in which a control unit...

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Bibliographische Detailangaben
1. Verfasser:	MATSUI SHIGEZUMI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	To provide a power conversion device that prevents overcharge of an on-vehicle battery to suppress an occurrence of abnormality during charging.SOLUTION: Provided is a battery support device 10 to be connected to an on-vehicle battery E1 that supplies power to a starter 101, in which a control unit 12 acquires a battery voltage of the on-vehicle battery E1. The control unit 12 stores a threshold voltage set on the basis of the acquired battery voltage of the on-vehicle battery E1 at engine stop in a storage unit 122. Upon detection of startup of the starter 101, the control unit 12 controls switching of an AC-DC converter 11 so as to output a voltage up to the threshold voltage stored in the storage unit 122.SELECTED DRAWING: Figure 2 【課題】車載バッテリの過充電を防止して、充電時の異常発生を抑制する電力変換装置を提供する。【解決手段】スタータ１０１へ電力供給する車載バッテリＥ１に接続されるバッテリ補助装置１０であって、制御部１２は、車載バッテリＥ１のバッテリ電圧を取得する。制御部１２は、エンジン停止時に、取得する車載バッテリＥ１のバッテリ電圧に基づいて設定される閾値電圧を、記憶部１２２に記憶する。制御部１２は、スタータ１０１の始動を検知すると、記憶部１２２に記憶した閾値電圧を上限とする電圧を出力するよう、ＡＣ−ＤＣコンバータ１１をスイッチング制御する。【選択図】図２