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AssigneesHyundai Motor Company, Kia Corporation
InventorsJun Young PARK, Hee Mang LEE, Jae Won JUNG, Seong Cheol JEONG
Estimating the term…
A system and a method for estimating a hydrogen concentration of a fuel cell include the fuel cell, a discharge line connected to an outlet side of a fuel cell hydrogen electrode while connecting the fuel cell to an exterior of the fuel cell, for communication between the fuel cell and the exterior of the fuel cell, a discharge valve provided at the discharge line and configured to adjust the communication between the fuel cell and the exterior of the fuel cell, and a controller configured to cut off the discharge valve during operation of the fuel cell, to check occurrence of degradation of the fuel cell, and to correct a crossover coefficient value of the fuel cell in accordance with a level of the degradation in the fuel cell when the degradation of the fuel cell has occurred, estimating a hydrogen concentration in an interior of the fuel cell.
A system for estimating a hydrogen concentration of a fuel cell, the system comprising:
The system of claim 10, wherein, in the estimating the hydrogen concentration in the interior of the fuel cell, the controller is configured to determine a diffusion coefficient caused by crossover of the fuel cell, using the corrected crossover coefficient value, and then to estimate the hydrogen concentration of the fuel cell hydrogen electrode in the interior of the fuel cell, based on the determined diffusion coefficient.
A method for estimating a hydrogen concentration of a fuel cell, the method comprising:
Dependencies are inferred from the claim text.