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

Claim 12:
13. The power battery charging method according to claim 11, wherein the obtaining a quantity of to-be-connected phase legs of the three-phase inverter based on to-be-charged power of the power battery, and based on the quantity of to-be-connected phase legs, controlling a corresponding quantity of phase legs to operate comprises:
determining that the quantity of to-be-connected phase legs of the three-phase inverter is 2 when the control module detects that the to-be-charged power of the power battery is not lower than the first preset power but lower than second preset power, and controlling any two phase legs in the three phase legs to operate or controlling three groups of two phase legs in the three phase legs to operate in sequence, wherein the three-phase inverter comprises an A-phase leg, a B-phase leg, and a C-phase leg, a first group of two phase legs comprise the A-phase leg and the B-phase leg, a second group of two phase legs comprise the A-phase leg and the C-phase leg, and a third group of two phase legs comprise the B-phase leg and the C-phase leg.