Patent ID: 11916429
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 6:
7. A powersystem comprising:
a bidirectional powertransfer inverter configured to receive grid power and be electrically connected with electric vehicle supply equipment;
an auxiliary battery electrically connected with the bidirectional powertransfer inverter and configured to supply powerto the bidirectional power transfer inverter and electric vehicle supply equipment while the grid power is unavailable;
a storage battery electrically connected with the bidirectional power transfer inverter; and
one or more controllers programmed to,
responsive to a state of charge of the auxiliary battery being less that a predetermined value, command that energyfrom a traction battery electrically connected with the electric vehicle supply equipment charge the auxiliary battery, and
after activation of control circuitry of the bidirectional powertransfer inverter using powerfrom the auxiliary battery while the grid power is unavailable, ramp down the powerfrom the auxiliary battery and ramp up powerto the bidirectional power transfer inverter from the traction battery or the storage battery.