The specification relates to a disconnection diagnosis device of a battery management system. The purpose of the present invention is to provide the disconnection diagnosis device of the battery management system and a method thereof capable of effectively detecting the disconnection of a wire connected between a battery cell and a controller in the battery management system. A vehicle battery management system comprises: a battery module including a plurality of battery cells connected in series; a control circuit to monitor and control charging and discharging states of the battery cells of the battery module; a capacitor wherein one end is connected to each of the battery cells and the other end is connected to the ground; a diode connected every line branched from each of the battery cells; a current source wherein one end is connected to each of the battery cells and the other end is connected to the ground by a switch; a measurement unit to measure voltage of the line connected to one end of the current source; and a diagnosis unit to diagnose the disconnection of the line connected to each of the battery cells based on the measured voltage of the line.
본 명세서는 배터리 관리 시스템의 단선 진단 장치에 관한 것으로서, 차량용 배터리 관리 시스템에 있어서, 직렬 연결된 복수의 배터리 셀을 포함하는 배터리 모듈; 상기 배터리 모듈의 상기 배터리 셀들의 충방전 상태를 모니터링 및 제어하는 제어 회로; 상기 배터리 셀 각각과 일단이 연결되고 타단이 접지와 연결되는 커패시터; 상기 배터리 셀 각각에서 분기된 라인마다 연결되는 다이오드; 상기 배터리 셀 각각과 일단이 연결되고 타단이 스위치를 통해 접지와 각각 연결되는 전류 소스; 상기 전류 소스의 일단과 연결된 라인의 전압을 측정하는 측정부; 및 상기 측정된 라인의 전압을 기초로 하여 상기 배터리 셀 각각과 연결된 라인의 단선을 진단하는 진단부를 포함한다.
APPARATUS AND METHOD FOR DETECTING DISCONNECTION OF WIRE IN BATTERY MANAGEMENT SYSTEM
배터리 관리 시스템의 단선 진단 장치 및 방법
2016-06-21
Patent
Electronic Resource
Korean
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / 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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