The present invention relates to a multi-charging system of an auxiliary battery applied to an electric vehicle and a hybrid vehicle. More specifically, the multi-charging system of an auxiliary battery applied to an electric vehicle and a hybrid vehicle comprises: an on-board charger (OBC) (10) for converting power supplied from an external power source to supply charging power to a main battery (MB) and an auxiliary battery (AB) of an electric vehicle; a DC-DC converter (20) for converting high-voltage DC power output from the OBC (10) into low-voltage DC power to supply the low-voltage DC power to the auxiliary battery (AB); and a charging controller (30) disposed between the DC-DC converter (20) and the auxiliary battery (AB) to control a charging current. The charging controller (30) includes a first charging unit (31) and a second charging unit (33) for controlling charging according to a type of the auxiliary battery (20).

    본 발명은 전기차 및 Hybrid 차량에 적용되는 보조 배터리의 멀티충전시스템에 관한 것으로서, 더욱 상세하게는 외부 전원으로부터 공급되는 전력을 변환하여 전기차의 메인 배터리(MB)와 보조 배터리(AB)로 충전전력을 공급하기 위한 차량 탑재 충전기(10)(On Board Charger, OBC), 상기 차량 탑재 충전기(10)로부터 출력되는 고전압 직류 전력을 저전압 직류 전력으로 변환하여 상기 보조 배터리(AB)로 공급하기 위한 DC-DC 컨버터(20), 상기 DC-DC 컨버터(20)와 상기 보조 배터리(AB) 사이에 배치되어 충전전류를 제어하기 위한 충전 컨트롤러(30)를 포함하여 이루어지되, 상기 충전 컨트롤러(30)는 상기 보조 배터리(20)의 종류에 따라 충전을 제어하기 위한 제1 충전부(31) 및 제2 충전부(33)로 구성된다,


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    Title :

    Hybrid Auxiliary battery multi-charging system in electric and hybrid vehicles


    Additional title:

    전기차 및 Hybrid 차량에 적용되는 보조 배터리 멀티충전시스템


    Contributors:

    Publication date :

    2024-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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