The present invention relates to an apparatus for managing a battery and a battery pack and a vehicle including the same. According to the present invention, the battery pack can be protected from over discharge, overcharge and overcurrent. The apparatus for managing a battery comprises: a pre-charge unit having a plurality of switches, connected in parallel with a first main relay and connected between a second main relay and a second charging and discharging terminal; a control unit converting output voltage of a battery module into alternating current voltage to control the plurality of switches in order to apply the alternating current voltage to the first main relay or the second main relay; and a diagnosis unit determining whether a defect of the first main relay is diagnosed based on a first both-end voltage value of the first main relay to which the alternating current voltage is applied or determining whether a defect of the second main relay is diagnosed based on a second both-end voltage value of the second main relay to which the alternating current voltage is applied.
본 발명에 따른 배터리 관리 장치는 복수의 스위치를 구비하고, 상기 제1 메인 릴레이와 병렬로 연결되며, 상기 제2 메인 릴레이와 상기 제2 충방전 단자 사이에 연결된 프리차지부, 상기 배터리 모듈의 출력 전압을 교류 전압으로 변압하여 상기 제1 메인 릴레이 또는 상기 제2 메인 릴레이에 인가되도록 상기 복수의 스위치를 제어하는 제어부, 상기 교류 전압이 인가된 제1 메인 릴레이의 제1 양단 전압값에 기초하여 상기 제1 메인 릴레이의 고장 여부를 진단하거나, 상기 교류 전압이 인가된 제2 메인 릴레이의 제2 양단 전압값에 기초하여 상기 제2 메인 릴레이의 고장 여부를 진단하는 진단부를 포함한다.
Apparatus for managing battery battery pack including the same and vehicle including the same
배터리 관리 장치와 이를 포함하는 배터리 팩 및 자동차
2019-04-03
Patent
Electronic Resource
Korean
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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