Patent ID: 11970081
Assignee: HYUNDAI MOTOR COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 18:
19. A method for controlling a charging apparatus for a vehicle, the method comprising:
identifying a charging capacity of an external charger connectable to the vehicle supplying a charging current; and
controlling a first switching element between the external charger connectable to the vehicle and a first battery, a second switching element between the external charger connectable to the vehicle and a second battery, and a third switching element between the first battery and the second battery,
wherein controlling comprises:
at a first time, causing the first battery and the second battery to be charged as a single battery by turning on the third switching element and turning off the first switching element and the second switching element;

at a second time, causing the first battery and the second battery to both be charged by turning off the third switching element, turning on the first switching element and the second switching element, and when a charging amount of the first battery is different to a charging amount of the second battery, variably adjusting via the first switching element a magnitude of a first charging current supplied to the first battery from the external charger connectable to the vehicle or variably adjusting via the second switching element a magnitude of a second charging current supplied to the second battery from the external charger connectable to the vehicle so that the charging amount of the first battery is equal to the charging amount of the second battery; and
at a third time, causing only one of the first battery or the second battery to be charged by turning off the third switching element, turning on one of the first switching element or the second switching element, and turning off the other of the first switching element or the second switching element.