To provide a vehicular power supply system which includes a charging inlet and a voltage converter, and which is reduced in noise reaching the charging inlet from the voltage converter.SOLUTION: In an electric vehicle 100, a power converter 10 has an input terminal connected to a main battery 3, has an output terminal connected to a motor 90 for traveling, and converts the output power of the main battery into the driving power of the motor. A voltage converter 21 is connected between the main battery and a sub battery 4, and can step down the voltage of the main battery to the voltage of the sub battery. A charging inlet 8 is connected to the main battery, and can be connected to a power supply device outside the vehicle. A capacitor 7 is connected between a positive electrode and a negative electrode of the input terminal of the power converter. A coil 30 is connected to the capacitor without a charging power path from the charging inlet to the main battery interposed therebetween.SELECTED DRAWING: Figure 1

    【課題】充電インレットと電圧コンバータを有する車両用電源システムに関し、電圧コンバータから充電インレットへ達するノイズを低減する。【解決手段】電気自動車100において、電力変換器10は、入力端がメインバッテリ3に接続されており、出力端が走行用のモータ90に接続されており、メインバッテリの出力電力をモータの駆動電力に変換する。電圧コンバータ21は、メインバッテリとサブバッテリ4の間に接続されており、メインバッテリの電圧をサブバッテリの電圧へ降圧することができる。充電インレット8は、メインバッテリに接続されており、車両外部の給電装置に接続可能である。コンデンサ7は、電力変換器の入力端の正極と負極の間に接続されている。コイル30は、充電インレットからメインバッテリへの充電電力経路を介さずにコンデンサに接続されている。【選択図】図1


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    Title :

    VEHICULAR POWER SUPPLY SYSTEM


    Additional title:

    車両用電源システム


    Contributors:

    Publication date :

    2020-07-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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