The invention relates to an emergency disconnection circuit for a high-voltage battery electrical system and a motor vehicle having the same. An emergency disconnect circuit for use with a high voltage (HV) bus of a battery electrical system, such as on a mobile system, includes a pyrotechnic switch and a manual switch. The pyrotechnic switch is configured to irreversibly open in response to an electronic trigger signal to disconnect the HV battery pack from the HV bus in a first manner. A manual switch is disposed on a low voltage (LV) bus in series with and between the pyrotechnic switch and the LV power source. Transition of the manual switch from the open position to the closed position connects the LV power source to the pyrotechnic switch. This causes the LV power supply to release a trigger signal to the pyrotechnic switch. When used on the mobile system, the electronic monitoring unit generates a trigger signal in a second manner in response to a threshold impact event.
本发明涉及用于高压电池电系统的紧急断开电路和具有其的机动车辆。用于与电池电系统的高压(HV)总线一起使用的紧急断开电路,例如在移动系统上,该紧急断开电路包括烟火式开关和手动开关。烟火式开关配置为响应于电子触发信号不可逆地打开以便以第一方式将HV电池组从HV总线断开连接。手动开关布置在低压(LV)总线上与烟火式开关和LV电源串联并布置于其间。手动开关从打开位置到闭合位置的转变将LV电源连接到烟火式开关。这引起LV电源向烟火式开关释放触发信号。当在移动系统上使用时,电子监测单元响应于阈值冲击事件以第二方式生成触发信号。
Emergency disconnect circuit for high voltage battery electrical system and motor vehicle having same
用于高压电池电系统的紧急断开电路和具有其的机动车辆
2023-10-24
Patent
Electronic Resource
Chinese
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