| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently control a supply volume of reaction gas with work alleviated. <P>SOLUTION: A control part 5 judges whether an atmospheric pressure detection value detected by an atmospheric pressure sensor P3 is continuously out of a range of 0.6 to 4.48 V for 50 ms or more, and if not, the atmospheric pressure detection value is converted into an atmospheric pressure value and lets it go through a low-pass filter to output an atmospheric pressure correction value. If, on the other hand, the above state continues for 50 ms or more, an alternate value of 101.3 kPa.abs is outputted as the atmospheric pressure correction value. Then, each pressure detection value detected by pressure sensors P1, P2 is converted into a gate pressure value, absolute pressures of reaction gas in an oxidizing gas piping system 3 and a hydrogen gas piping system 4 are calculated by adding the atmospheric pressure correction value to each gate pressure value, and a supply volume of reaction gas to a fuel cell 2 is controlled based on these absolute pressures. <P>COPYRIGHT: (C)2009,JPO&INPIT |
