US 12,347,897 B2
Fuel cell system and method of controlling heater thereof
Jong Bo Won, Yongin-si (KR); and Sung Kyung Choi, Yongin-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 Aug. 24, 2022, as Appl. No. 17/894,477.
Claims priority of application No. 10-2021-0119084 (KR), filed on Sep. 7, 2021.
Prior Publication US 2023/0077249 A1, Mar. 9, 2023
Int. Cl. H01M 8/04029 (2016.01); H01M 8/04223 (2016.01); H01M 8/04537 (2016.01); H01M 8/04701 (2016.01)
CPC H01M 8/04029 (2013.01) [H01M 8/04268 (2013.01); H01M 8/04626 (2013.01); H01M 8/04738 (2013.01); H01M 2250/20 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A fuel cell system comprising:
a cathode oxygen depletion (COD) heater disposed on a line through which cooling water flowing into a fuel cell stack circulates and configured to heat the cooling water or consume residual power of the fuel cell stack; and
a controller configured to determine power consumption based on a target heating amount of the COD heater and control an operation of the COD heater based on the determined power consumption,
wherein the controller is further configured to determine the power consumption based on the target heating amount for consuming the residual power of the fuel cell stack until an output voltage of the fuel cell stack becomes less than a reference voltage in a shutdown mode.