US 12,304,350 B2
Power conversion system for autonomous driving and method for controlling same
Ho Joong Lee, Whasung-si (KR); and Joon Young Jeon, Whasung-si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on May 9, 2022, as Appl. No. 17/739,777.
Claims priority of application No. 10-2021-0089250 (KR), filed on Jul. 7, 2021.
Prior Publication US 2023/0013714 A1, Jan. 19, 2023
Int. Cl. B60L 58/20 (2019.01); B60L 58/12 (2019.01)
CPC B60L 58/20 (2019.02) [B60L 58/12 (2019.02); B60L 2210/12 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A power conversion system for autonomous driving, the power conversion system comprising:
a first battery and a second battery;
a low voltage DC-DC converter (LDC) configured to convert a magnitude of a voltage, output the converted voltage, and charge the first battery with an output of the LDC;
an autonomous driving load electrically connected to the LDC and the first battery and configured to be provided with a power voltage from the LDC or the first battery; and
an autonomous driving controller electrically connected to the LDC, the first battery, and the second battery and configured to be provided with a power voltage from one of the LDC, the first battery, or the second battery,
wherein the LDC is configured to determine the output of the LDC based on control parameters including a load amount of the autonomous driving load, a state of charging of the first battery, and a state of charging of the second battery, and
wherein when the state of charging of the second battery is equal to or greater than a first reference value, the LDC is configured to determine the output of the LDC based on a value obtained by subtracting an amount of load of the autonomous driving controller from the load amount of the autonomous driving load.