Subsidiary control module for electric automobile battery management system

电动汽车用电池管理系统从控模块

Abstract

本实用新型公开一种电动汽车用电池管理系统从控模块,包括ECU、CAN接口、温度测量模块、信号光电隔离模块、DC/DC电源隔离模块、多通道电池监视模块、多节电池电压检测模块和多节电池均衡处理模块,ECU通过CAN接口连接电池管理系统的主控模块;温度测量模块将测量的温度数据送入ECU;多通道电池监视模块经由信号光电隔离模块连接ECU,将检测的电池电压经隔离处理后送入ECU,且DC/DC电源隔离模块为信号光电隔离模块和多通道电池监视模块提供电源;多通道电池监视模块还连接多节电池电压检测模块和多节电池均衡处理模块。此种结构通过采用分布式的方式进行设计,使得电池管理系统简单,可靠性高,可扩展性能强。
The utility model discloses a subsidiary control module for an electric automobile battery management system, which comprises an ECU, a CAN interface, a temperature-measurement module, a signal photoelectric isolation module, a DC/DC power supply isolation module, a multichannel battery monitoring module, a multi-battery voltage-detecting module and a multi-battery balanced processing module, wherein the ECU is connected with the main control module of the battery management system by the CAN interface; the temperature-measurement module sends the measured temperature data to the ECU; the multichannel battery monitoring module is connected with the ECU by the signal photoelectric isolation module and sends the detected battery voltage after isolation processing to the ECU, and the DC/DC power supply isolation module provides power supply for the signal photoelectric isolation module and the multichannel battery monitoring module; and the multichannel battery monitoring module is also connected with the multi-battery voltage-detecting module and the multi-battery balanced processing module. The structure is designed by adopting a distributing mode, thus leading the battery management system to be simple, high in reliability and strong in expansibility.

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    CN-103399567-ANovember 20, 2013国家电网公司, 国网辽宁省电力有限公司大连供电公司, 大连电力勘察设计院有限公司Safety monitoring device for power battery