Patent ID: 7942035

Claim:
A system for detecting an anode leak of an anode stream driven in a fuel cell stack of a vehicle at varying pressure levels by a pressure regulator device, wherein the fuel cell stack generates electrical current in response to the anode stream, the system comprising: a controller operably coupled to the pressure regulator device and configured to: store at least one first predetermined control value which is indicative of a first pre-selected pressure level; generate at least one first operational control value; control the pressure regulator device to adjust the pressure of the anode stream to reach the first pre-selected pressure level with the at least one first operational control value; compare the at least one first operational control value to the at least one first predetermined control value; and determine the presence of an anode leak in the anode stream based on the comparison of the at least one first operational control value to the at least one first predetermined control value.