Patent ID: 11858354
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 6:
7. A battery electric system for use aboard a mobile system, comprising:
a low-voltage (LV) power supply;
a high-voltage (HV) bus;
a high-voltage (HV) battery pack connected to the HV bus, including a pyrotechnic switch configured to activate in response to an electronic triggering signal to thereby disconnect the HV battery pack from the HV bus;
an emergency disconnect circuit connected to the pyrotechnic switch, including a manual switch connected in series with and between the pyrotechnic switch and the LV power supply, and configured, when transitioned from an open position to a closed position, to discharge the electronic triggering signal to the pyrotechnic switch; and
an electronic monitoring unit operable for transmitting the electronic triggering signal to the pyrotechnic switch in response to detecting a threshold impact event of the mobile system, wherein the pyrotechnic switch is configured to activate in response to the electronic triggering signal to thereby disconnect the HV battery pack from the HV bus.