본 발명은 전기 자동차용 배터리 셀들의 직렬 일괄 충전 방식에서의 셀 전압간 불 균일 충전 문제를 해결하기 위해, 직렬 충전 구조에 병렬 개별 충전구조를 추가한 균일 충전 기술에 관한 것이다. 구체적으로는 셀들 간의 균일 충전을 위해서, 병렬 충전 구조를 직렬 충전 구조에 추가적으로 채용하고 충전 속도를 각 셀 별로 개별 제어하는 직. 병렬 충전 기술에 관한 기술이다. 직렬 충전 구조에 추가되는 병렬충전 구조를 위해서는 작은 크기의 전압을 정류하고 이를 DC-DC 변환회로를 통하여 각 배터리 셀에 개별적으로 병렬 인가하여 개별 충전함으로써, 직렬로 합산된 배터리 셀 전체의 전압이 충전 목표전압이 되게 한다. [색인어] 전기 자동차, 배터리, 직렬 일괄 충전, 직. 병렬 병행 충전, 안전 균일 충전, 충전 제어, DC-DC 변환회로

    The present invention relates to a uniform charging technology in which a parallel individual charging structure is added to a serial charging structure in order to solve the problem of uneven charging between cell voltages in a serial batch charging method of a battery cell for an electric vehicle. More specifically, the technology is a serial and parallel charging technology for additionally adopting the parallel charging structure in the serial charging structure and controlling a charging speed individually for each cell for uniform charging between cells. For the parallel charging structure to be added to the serial charging structure, a voltage of a small size is rectified and applied to each battery cell individually in parallel through a DC-DC- conversion circuit such that each batter cell is charged. Therefore, the voltage of the whole battery cell summed in series becomes a charging target voltage.


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    Title :

    A Hybrid Method with Serial and Parallel Charging Apparatus for Balanced Charging of EV Batteries


    Additional title:

    전기자동차용 배터리의 균일 충전을 위한 직렬과 병렬의 병행 충전 장치


    Publication date :

    2022-08-04


    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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