PROBLEM TO BE SOLVED: To provide a power supply system in which a power supply failure in a constant voltage requiring load can be suppressed while input of high power from a rotary electric machine to a booster circuit is suppressed.SOLUTION: The power supply system is provided, comprising a rotary electric machine 17 having a function as a power generator and a lead storage battery 11 and lithium-ion storage battery 12. The power supply system also comprises: a first line L1 for connecting a first connection point N1 to which the lead storage battery 11 is connected with a second connection point N2 to which the lithium-ion storage battery 12 is connected; and a second line L2 for connecting the second connection point with a third connection point N3 to which the rotary electric machine 17 is connected. The power supply system further comprises: a first switch 21 for switching conduction/interception of the first line L1; a second switch 22 for switching conduction/interception of the first line L2; and a booster circuit 24 connected in parallel to the first switch SW1, the booster circuit outputting voltage obtained by boosting a voltage input from the lithium-ion storage battery 12.SELECTED DRAWING: Figure 1

    【課題】昇圧回路に対して、回転電機から大電力が入力されることを抑制しつつ、定電圧要求負荷における電源失陥を抑制することが可能な電源システムを提供する。【解決手段】発電機としての機能を有する回転電機17と、鉛蓄電池11及びリチウムイオン蓄電池12と、を備える電源システムであって、鉛蓄電池11が接続される第1接続点N1とリチウムイオン蓄電池12が接続される第2接続点N2とを接続する第1経路L1、第2接続点と回転電機17が接続される第3接続点N3とを接続する第2経路L2を備え、第1経路L1の導通及び遮断を切り替える第1スイッチ21と、第2経路L2の導通及び遮断を切り替える第2スイッチ22と、第1スイッチSW1に対して並列接続され、リチウムイオン蓄電池12から入力される電圧を昇圧して出力する昇圧回路24と、を備える。【選択図】 図1


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    Title :

    POWER SUPPLY SYSTEM, AND BATTERY UNIT


    Additional title:

    電源システム、及び電池ユニット


    Contributors:

    Publication date :

    2018-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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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