| 摘要 |
Disclosed is a hydrogen leak determining method for a fuel cell system. The disclosed hydrogen leak determining method for a fuel cell system determines the leakage of hydrogen from a fuel cell system comprising a hydrogen flow rate control valve for controlling the flow rate of hydrogen supplied to a fuel cell stack, and comprises: (a) measuring the value of electric current applied to the hydrogen flow rate valve, and detecting the supply amount of hydrogen, which is supplied to the fuel cell stack, based on the value of the electric current applied to the hydrogen flow rate valve; (b) measuring the value of electric current outputted from the fuel cell stack, and detecting the actual usage amount of hydrogen based on the electric current outputted from the fuel cell stack; (c) and determining the leakage of hydrogen when a difference between the supply amount of hydrogen and the actual usage amount of hydrogen is determined to exceed a predetermined flow rate by comparing the supply amount of hydrogen with the actual usage amount of hydrogen through the control part. |
