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    • 10. 发明申请
    • SWITCH FAILURE DETECTION DEVICE, BATTERY PACK INCLUDING THE SAME, AND METHOD OF DETECTING FAILURE OF ELECTRONIC SWITCH
    • 开关故障检测装置,包括其的电池组以及检测电子开关故障的方法
    • US20130229186A1
    • 2013-09-05
    • US13781558
    • 2013-02-28
    • GS YUASA INTERNATIONAL LTD.
    • Takeyuki SHIRAISHITakeshi ITAGAKI
    • G01R31/327
    • G01R31/327G01R31/3277G01R31/3278H02J7/0031H02J2007/0037H02J2007/004
    • A switch failure detection device includes a switch, a rectifier, a switch voltage detection circuit, and a controller. The switch is connected in a path in which a charging current to and a discharging current flow. The rectifier passes a discharging current by bypassing the switch when the switch is turned off. The detection circuit detects a voltage between an input and an output of the switch. The controller is configured to: determine whether the electric storage device is in a discharging state; send an off-command signal to the switch if the electric storage device is in the discharging state; receive the voltage; determine an input-output voltage of the switch based on the voltage; determine whether the input-output voltage is lower than a first reference voltage; and determine the switch has a turn-off problem if the input-output voltage is lower than the first reference voltage.
    • 开关故障检测装置包括开关,整流器,开关电压检测电路和控制器。 开关连接在充电电流和放电电流流动的路径中。 当开关关闭时,整流器通过旁路开关来传递放电电流。 检测电路检测开关的输入和输出之间的电压。 控制器被配置为:确定蓄电装置是否处于放电状态; 如果蓄电装置处于放电状态,则向开关发送断开指令信号; 接收电压; 基于电压确定开关的输入 - 输出电压; 确定输入 - 输出电压是否低于第一参考电压; 并且如果输入 - 输出电压低于第一参考电压,则确定开关具有关断问题。