US 12,119,523 B2
Fuel cell system and method for controlling the same
Seung Ho Shin, 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. 23, 2022, as Appl. No. 17/893,328.
Claims priority of application No. 10-2022-0005434 (KR), filed on Jan. 13, 2022.
Prior Publication US 2023/0223570 A1, Jul. 13, 2023
Int. Cl. H01M 8/04746 (2016.01); H01M 8/04082 (2016.01); H01M 8/04089 (2016.01); H01M 8/0432 (2016.01); H01M 8/0438 (2016.01); H01M 8/04492 (2016.01); H01M 8/04537 (2016.01); H01M 8/10 (2016.01)
CPC H01M 8/04753 (2013.01) [H01M 8/04089 (2013.01); H01M 8/04201 (2013.01); H01M 8/0432 (2013.01); H01M 8/0438 (2013.01); H01M 8/04492 (2013.01); H01M 8/04559 (2013.01); H01M 2008/1095 (2013.01); H01M 2250/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for controlling a fuel cell system, the method comprising:
deriving, by a controller, target relative humidities of a fuel cell;
deriving, by the controller, operating conditions of the fuel cell to achieve the target relative humidities of the fuel cell;
controlling, by the controller, operation of the fuel cell based on the derived operating conditions, and measuring output voltage of the fuel cell; and
controlling, by the controller, an air supplier of the fuel cell to form an impulse to supply air to the fuel cell when the output voltage of the fuel cell is less than a target output voltage reference;
wherein controlling the air supplier comprises:
comparing the measured output voltage with the target output voltage reference, and forming a cathode pressure impulse by controlling the air supplier of the fuel cell depending on a result of comparison; and
injecting the formed cathode pressure impulse into the fuel cell.