Patent ID: 11876396
Assignee: BYD COMPANY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 9:
10. The power battery charging method according to claim 8, wherein:
the three-phase inverter comprises three phase legs, each phase leg comprises two power switch units connected in series, and the three phase coils of the three-phase alternating current motor are separately connected to connection points of the two power switch units of the phase leg; and
the controlling the three-phase inverter so that a process of charging the three phase coils of the three-phase alternating current motor by the power supply module and a process of discharging the power battery by the power supply module and the three phase coils of the three-phase alternating current motor are alternately performed comprises:
controlling two power switch units on at least one phase leg of the three-phase inverter to close alternately so that the process of charging the three phase coils of the three-phase alternating current motor by the power supply module and the process of discharging the power battery by the power supply module and the three phase coils of the three-phase alternating current motor are alternately performed.