Patent ID: 11863004
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 17:
18. A method for controlling a split-phase bidirectional on-board charger (OBC) having a charging mode and a discharging mode, comprising:
during the charging mode:
controlling, via an electronic control unit (ECU), a first direct current-to-alternating current (DC-AC) converter and a second DC-AC converter on a DC bus to output a DC link voltage to a direct current-to-direct current (DC-DC) converter, wherein the first DC-AC converter is connected to a first pair of three switches of a switchgear block and the second DC-AC converter is connected to a second pair of the three switches of the switchgear block, such that the first DC-AC converter and the second DC-AC converter share one of the three switches in common; and
controlling the DC-DC converter via the ECU to output a DC charging voltage or current to the DC bus when the DC link voltage reaches a predetermined value; and

during the discharging mode:
providing a DC discharging voltage or current from the DC-DC converter to the first DC-AC converter and the second DC-AC converter; and
controlling the first DC-AC converter and the second DC-AC converter via the ECU to selectively output a split-phase AC voltage through a switchgear block to power an external AC electrical load.