The present invention relates to a power relay assembly (PRA) and a method of controlling the power relay assembly. The purpose of the present invention is to provide a method of controlling a power relay assembly, which controls the sequence of the opening and closing operations of the plurality of relays according to the state of a vehicle without fixing a sequence of opening and closing operations of a plurality of relays included in the power relay assembly. According to an embodiment of the present invention, the power relay assembly includes: a first main relay which connects a negative voltage between a battery and an inverter; a second main relay which connects a positive voltage between the battery and the inverter; a pre-charge relay which is connected in parallel to the first main relay; and a control part which controls a sequence of opening or short circuit of the first main relay, the second main relay and the pre-charge relay by considering opening and closing operations between the battery and the inverter or charging and discharging operations of the battery, wherein the opening and closing operations is divided into an opening operation and a closing operation between the battery and the inverter, and the charging and discharging operations may be divided into a charging operation and a discharging operation of the battery.

    본 발명은 파워 릴레이 어셈블리(Power Relay Assembly, PRA) 및 파워 릴레이 어셈블리의 제어 방법에 관한 것이다. 본 발명의 일 실시예에 따른 파워 릴레이 어셈블리는, 배터리(battery)와 인버터(inverter) 사이의 음의 전압을 연결하는 제1 메인 릴레이(main relay); 상기 배터리와 상기 인버터 사이의 양의 전압을 연결하는 제2 메인 릴레이; 상기 제1 메인 릴레이와 병렬로 연결되는 초충 릴레이(pre-charge relay); 및 상기 배터리와 상기 인버터 사이의 개폐 동작 또는 상기 배터리의 충방전 동작을 고려하여 상기 제1 메인 릴레이, 상기 제2 메인 릴레이 및 상기 초충 릴레이의 개방(open) 또는 단락(short)의 순서를 제어하는 제어부; 를 포함하며, 상기 개폐 동작은 상기 배터리와 상기 인버터 사이의 열림 동작 및 닫힘 동작으로 구분되며, 상기 충방전 동작은 상기 배터리의 충전 동작 및 방전 동작으로 구분될 수 있다.


    Access

    Download


    Export, share and cite



    Title :

    Power Relay Assembly PRA A method of controlling a power relay assembly PRA and a power relay assembly


    Additional title:

    파워 릴레이 어셈블리(Power Relay Assembly, PRA) 및 파워 릴레이 어셈블리의 제어 방법


    Contributors:
    KIM MI OK (author) / HWANG DO SUNG (author) / LEE BO SEON (author) / KIM BEOM GYU (author) / YOON JONG HU (author) / PARK HYUN SOO (author) / CHUNG TAE HWAN (author)

    Publication date :

    2019-06-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

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




    POWER RELAY ASSEMBLY

    WON MIN-HO / HWANG SEUNG JAE | European Patent Office | 2020

    Free access

    Power relay assembly

    European Patent Office | 2019

    Free access

    Power relay assembly

    European Patent Office | 2019

    Free access

    POWER RELAY ASSEMBLY

    WON MIN HO / HWANG SEUNG JAE | European Patent Office | 2024

    Free access