| 摘要 |
<P>PROBLEM TO BE SOLVED: To determine whether a detection sensor itself has a failure or a detection target of the detection sensor has an abnormality, and improve maintenance performance after the abnormality has occurred, in a fuel cell system. <P>SOLUTION: A control device for a fuel cell system includes: sensor failure determination means for determining whether or not a detection sensor has a failure on the basis of whether or not an output signal from the detection sensor is outside a first determination range continuously for a first determination time or longer (Steps 106 and 108); state abnormality determination means for determining whether or not a state of a physical amount which is a detection target of the detection sensor is abnormal on the basis of whether or not the output signal from the detection sensor is outside a second determination range narrower than the first determination range and fully included in the first determination range continuously for a second determination time, which is longer than the first determination time, or longer (Steps 112-118); and storage means for storing determination results by each determination means (Step 120). <P>COPYRIGHT: (C)2013,JPO&INPIT |
