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

Claim 7:
8. The power battery charging method according to claim 7, wherein the selecting a charging manner based on the voltage of the power supply module and the voltage of the power battery comprises:
selecting the boost charging manner when it is detected that a highest output voltage of the power supply module is not higher than the voltage of the power battery, wherein
the controlling the three-phase inverter so that the power supply module charges the power battery in the selected charging manner comprises:
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, to boost a charging voltage of the power supply module before the power battery is charged.