| 摘要 |
<P>PROBLEM TO BE SOLVED: To assure the starting of a fuel cell at a next time even if an abnormality occurs with a bypass function of a humidifier. <P>SOLUTION: A humidifier 76 is provided with a bypass channel 78, and a bypass opening/closing valve 79 is provided in the bypass channel 78. The air from an air compressor 75 is supplied to a fuel cell 20 by the channel of the bypass channel 78, for scavenging. If, at that time, the detected pressure of a pressure sensor 73 is higher than the reference value and an abnormality is detected in the bypass function of the humidifier 76, a target moisture content of the fuel cell 20 is reduced during normal operation, so that the moisture content at the start of scavenging is reduced by such amount as the target moisture content has been reduced. So, at the next starting time, the fuel cell 20 is surely started with no freezing. <P>COPYRIGHT: (C)2008,JPO&INPIT |
