| 摘要 |
<P>PROBLEM TO BE SOLVED: To restrict operation so that the temperature of air discharged from a compressor does not exceed an upper limit value without carrying out improper operation restriction relaxation or excessive operation restriction even when a detection value of the atmospheric pressure rapidly changes. <P>SOLUTION: An atmospheric pressure estimation means 45 calculates an atmospheric pressure estimation value based on the temperature of inhaled air of a compressor 7 detected by a temperature sensor 27, a discharged air temperature detected by a temperature sensor 29, and the pressure of discharged air of the compressor detected by a pressure sensor 31. An atmospheric pressure value selection means 47 selects smaller one out of an atmospheric pressure detection value detected by an atmospheric pressure sensor 23, and the atmospheric pressure estimation value to output it as an atmospheric pressure selection value. An operation restriction means 49 establishes operation restrictions of a fuel cell and a fuel cell system based on the inhaled air temperature from the temperature sensor 27 and the atmospheric pressure selection value from the selection means 47, and controls them so as not to execute rapid operation restriction relaxation or excessive operation restriction when the detection value of an atmospheric pressure sensor 25 is rapidly changed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
