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    • 78. 发明申请
    • VOLTAGE DETECTION DEVICE, VOLTAGE DETECTION METHOD, ABNORMALITY DETERMINATION DEVICE, ABNORMALITY DETERMINATION METHOD, AND BATTERY PACK SYSTEM
    • 电压检测装置,电压检测方法,异常确定装置,异常确定方法和电池组系统
    • US20160252584A1
    • 2016-09-01
    • US15053546
    • 2016-02-25
    • FUJITSU TEN LIMITED
    • Takehito IWANAGAAtsushi IZUTANIAkihito KONDOKazuya OGAWA
    • G01R31/36
    • G01R31/396G01R31/3277G01R31/3835
    • A voltage detection device includes battery stacks, and a connection member configured to electrically connect the battery stacks. The voltage detection device includes: a capacitor connected to each battery stack in parallel; switches, each of which having one end connected to a terminal of each battery stack and the other end connected to the capacitor; a detection unit configured to detect a voltage of the capacitor, and a control unit configured to control the switches, in which the control unit comprises: a discharging path selection unit that selects a discharging path comprising the connection member and the capacitor when discharging the capacitor, and a determination unit configured to determine whether an abnormality has occurred in the battery pack or at least one of the switches, in correspondence to at least one of a voltage of the capacitor after charging and a voltage of the capacitor after discharging.
    • 电压检测装置包括电池堆,以及构造成电连接电池堆的连接构件。 电压检测装置包括:并联连接到每个电池堆的电容器; 开关,每个开关的一端连接到每个电池堆的端子,另一端连接到电容器; 检测单元,被配置为检测电容器的电压;以及控制单元,被配置为控制开关,其中控制单元包括:放电路径选择单元,当放电电容器时,选择包括连接构件和电容器的放电路径 以及确定单元,其被配置为对应于充电后的电容器的电压和放电后的电容器的电压中的至少一个来确定电池组或至少一个开关是否发生异常。