PROBLEM TO BE SOLVED: To disclose a power supply system capable of continuing to supply power to important auxiliary machines even if an auxiliary machine power line is short-circuited.SOLUTION: A power supply system 2 includes: a main battery 3; an auxiliary machine battery 8; an auxiliary machine power line 22; a voltage converter 10; a shut-off switch 7; a bypass power line 23; and diodes 9a and 9b. The auxiliary machine power line 22 connects the auxiliary machine battery 8 to a shift-by-wire device 31 and an audio device 33, which are operated by power of the auxiliary machine battery 8. The voltage converter 10 steps down voltage of the main battery 3 and supplies the voltage to the auxiliary machine power line 22. The shut-off switch 7 disconnects the voltage converter 10 from the auxiliary machine power line 22 when the auxiliary machine power line 22 is short-circuited. The first bypass power line 23 supplies power from the voltage converter 10 to a shift wire device 31 without passing through the auxiliary machine power line 22. The diodes 9a and 9b prevent current backflow from the shift-by-wire device 31 to the auxiliary machine power line 22.SELECTED DRAWING: Figure 1

    【課題】補機電力線が短絡しても、重要な補機に電力を供給し続けることができる電源システムを開示する。【解決手段】電源システム2は、メインバッテリ3、補機バッテリ8、補機電力線22、電圧コンバータ10、遮断スイッチ7、バイパス電力線23、ダイオード9a、9bを備えている。補機電力線22は、補機バッテリ8と、補機バッテリ8の電力で動作するシフトバイワイヤ装置31及びオーディオ装置33を接続する。電圧コンバータ10は、メインバッテリ3の電圧を降圧して補機電力線22に供給する。遮断スイッチ7は、補機電力線22が短絡したときに電圧コンバータ10を補機電力線22から切り離す。第1バイパス電力線23は、補機電力線22を介さずに電圧コンバータ10からシフトバイワイヤ装置31へ電力を供給する。ダイオード9a、9bは、シフトバイワイヤ装置31から補機電力線22への電流逆流を防止する。【選択図】図1


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    Title :

    POWER SUPPLY SYSTEM FOR ELECTRIC AUTOMOBILE


    Additional title:

    電気自動車用の電源システム


    Contributors:

    Publication date :

    2018-04-26


    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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