Disclosed is a current measuring device for a high voltage battery for a vehicle which can measure a current in the high voltage battery in a plug-in hybrid vehicle or an electric vehicle by using a shunt resistor. The current measuring device for a high voltage battery for a vehicle according to an aspect of the present invention can comprise a printed circuit board, a shunt resistor, a current measuring unit, an insulated transmitting unit, and a controller area network (CAN) communication unit. The printed circuit board is divided into a low voltage unit and a high voltage unit at left and right sides thereof by an electrically insulated central insulation unit. The shunt resistor is connected to the high voltage battery. The current measuring unit is arranged in the high voltage unit of the printed circuit board, and measures a voltage across the shunt resistor to calculate a current value outputted from the high voltage battery. The insulated transmitting unit is arranged across the high voltage unit and the low voltage unit and enables the high voltage unit and the low voltage unit to transmit and receive electric signals to and from each other while insulated from each other. The CAN communication unit transmits the current value calculated in the current measuring unit to a battery control unit through CAN communication.
플러그인 하이브리드 자동차(Plug??in Hybrid Electric Vehicle)나 전기 자동차(Electric Vehicle)에서 고전압 배터리의 전류를 션트저항을 이용하여 측정할 수 있도록 한 자동차 고전압 배터리의 전류 측정 장치가 개시된다. 본 발명의 일 양상에 따른 자동차 고전압 배터리의 전류 측정 장치는 인쇄회로기판, 션트저항, 전류측정부, 절연전송부, CAN통신부를 포함할 수 있다. 인쇄회로기판은 전기적으로 절연된 중앙의 절연부에 의해 좌우의 저전압부와 고전압부로 나뉜다. 션트저항은 고전압 배터리에 연결된다. 전류측정부는 인쇄회로기판의 고전압부에 배치되고, 션트저항 양단의 전압을 측정하여 고전압 배터리에서 출력되는 전류값을 산출한다. 절연전송부는 고전압부와 저전압부에 걸쳐 배치되되, 고전압부와 저전압부가 전기적으로 절연된 상태에서 서로 전기적 신호를 주고 받게 한다. CAN 통신부는 전류측정부에서 산출된 전류값을 CAN통신을 통해 배터리 제어부로 전송한다.
Apparatus for measuring current of high voltage battery in vehicle
자동차 고전압 배터리의 전류 측정 장치
2016-11-29
Patent
Elektronische Ressource
Koreanisch
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G08C Übertragungssysteme für Messwerte, Regel-, Steuer- oder ähnliche Signale , TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS |
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