Patent ID: 11938839
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 14:
15. A system in a vehicle comprising:
four charging ports, each configured to connect to a corresponding port of a direct current fast charger;
four smart battery packs, each connected to one of the four charging ports, configured to power drive units of the vehicle to move the vehicle, each of the four smart battery packs comprising:
a battery pack, and
a battery management system (BMS) configured to monitor a state of charge of the battery pack; and
an energy distribution unit configured to facilitate charge transfer among the four smart battery packs, wherein the energy distribution unit includes four switches, each of the four switches corresponding with one of the four smart battery packs, and a direct current (DC)-DC converter, and
wherein two of the four switches are controlled to be closed to connect corresponding two of the four smart battery packs in series via the DC-DC converter for power transfer from one of the four smart battery packs to another of the four smart battery packs through the DC-DC converter.