US 12,407,009 B2
Method and device for controlling deterioration avoidance operation of fuel cell system
Hyun Seung Lee, Seoul (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 Jul. 26, 2022, as Appl. No. 17/873,710.
Claims priority of application No. 10-2021-0144455 (KR), filed on Oct. 27, 2021.
Prior Publication US 2023/0125311 A1, Apr. 27, 2023
Int. Cl. H01M 8/04 (2016.01); H01M 8/0267 (2016.01); H01M 8/04029 (2016.01); H01M 8/04089 (2016.01); H01M 8/04302 (2016.01); H01M 8/0432 (2016.01); H01M 8/0438 (2016.01); H01M 8/04537 (2016.01); H01M 8/04664 (2016.01); H01M 8/04746 (2016.01)
CPC H01M 8/04753 (2013.01) [H01M 8/0267 (2013.01); H01M 8/04029 (2013.01); H01M 8/04097 (2013.01); H01M 8/04302 (2016.02); H01M 8/0432 (2013.01); H01M 8/04388 (2013.01); H01M 8/04552 (2013.01); H01M 8/04582 (2013.01); H01M 8/04671 (2013.01); H01M 2250/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of controlling deterioration avoidance operation of a fuel cell system comprising an energy storage device, the method comprising:
starting the deterioration avoidance operation when an operation of the fuel cell is restarted in a state where the energy storage device is operating, and the fuel cell is stopped;
controlling hydrogen pressure at an anode based on a predetermined condition, the condition indicating that the hydrogen pressure at the anode needs to be increased;
determining hydrogen recirculation and supplying hydrogen, comprising a process performed such that whether to recirculate hydrogen is determined based on a predetermined condition, the condition indicating that hydrogen needs to be recirculated, before supplying hydrogen;
determining air recirculation and supplying air, comprising a process performed such that whether to recirculate air is determined based on a predetermined condition, the condition indicating that air needs to be recirculated, before supplying air; and
terminating the deterioration avoidance operation and starting an operation of the fuel cell.