摘要
电动汽车蓄电池组的工作状态主要指各电池在工作时的端电压、工作电流和温度3个参数的变化情况。对电池工作状态的检测通常有集中式检测法和分布式检测法,采用"部分"集中、"整体"分布的思路,将电池分成若干分组,每个分组集中检测,各分组分布检测,同时,采用"桥电容"技术解决了蓄电池组单体端电压检测中存在的参考点选择和被测电池与检测设备隔离的问题,形成了一种具有完全隔离功能的集中/分布式检测法。经过试验,该检测法电压、电流和温度采集功能正常,数据准确、可靠。
The voltage, current and temperature of each one in a set of batteries are meaned by the operating status of batteries in an EV. There are centralized and distributed measurement ways to get them. In order to get the voltage, current and temperature of each one in a set of batteries in electric vehicle, this paper puts forward a new way called centralized/distributed detecting method with bridge-capacity technology, which can solve the problems of reference voltage selection and the isolation of a cell from the testing device. The testing results indicate that this method has a good function for collecting the datum of voltage, current and temperature, and the datum are reliable.
出处
《电源技术应用》
2009年第4期10-13,共4页
Power Supply Technologles and Applications
关键词
电动汽车
汽车工程
电池
集中/分布检测
electric vehicle
automobile engineering
battery
centralized/distributed detecting
