| 摘要 |
PURPOSE:To prevent useless current supply by connecting a current detector and a voltage detector to one end of a fuel cell while judging a trouble of a load system basing on their current value and voltage value while outputting emergency instructions. CONSTITUTION:A voltage detector 8 is connected to a site of a current detector 2 to output voltage value (v) meeting the voltage V at a positive terminal + of a fuel cell body 1. Then, the impedance of a load system is computed by using current value (i) and voltage value (v) to be inputted from the current detector 2 and the voltage detector 8 through the impedance 9 as a trouble judging means to output the emergency instructions E to an arithmetic unit 6 basing on its result. The emergency instructions E urge extraordinary treatment on a system controlling a system 7 while becoming a lock signal for the arithmetic unit 6 to be inputted. The arithmetic unit 6 stops control of an air supply quantity so as not to continue a faulted current. |
