US 12,434,582 B2
Power converting system for vehicle and control method thereof
Dong-Hwi Lim, Yongin-si (KR); and Woo-Won Rhee, Seoul (KR)
Assigned to HYUNDAI AUTOEVER CORP., Seoul (KR)
Filed by HYUNDAI AUTOEVER CORP., Seoul (KR)
Filed on Nov. 19, 2021, as Appl. No. 17/531,517.
Claims priority of application No. 10-2020-0174601 (KR), filed on Dec. 14, 2020.
Prior Publication US 2022/0185130 A1, Jun. 16, 2022
Int. Cl. B60L 53/22 (2019.01); H02M 1/00 (2006.01); H02M 1/42 (2007.01); H03K 7/08 (2006.01)
CPC B60L 53/22 (2019.02) [H02M 1/0012 (2021.05); H02M 1/4208 (2013.01); H03K 7/08 (2013.01); B60L 2210/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power converting system for a vehicle, comprising:
an on board charger (OBC) configured to charge a high-voltage battery characterized by a capacity at least equal to a reference capacity;
a low voltage DC-DC converter (LDC) configured to convert a high voltage of the high-voltage battery into a low voltage, and charge a low voltage battery; and
an OBC and LDC integrated controller configured to perform integrated control on the OBC and the LDC,
wherein the OBC and LDC integrated controller performs pulse width modulation (PWM) switching control by synchronizing an ADC operation and a PWM switching frequency control operation, and
wherein the OBC and LDC integrated controller is configured to:
count, after one ADC operation started in a PWM switching period determined according to an ADC control period is completed, a designated number of PWM switching periods to synchronize an ADC operation and a PWM switching frequency control operation, and
perform a next ADC operation when a next PWM switching period is started.