| US 7,517,599 B2 | ||
| Fuel cell system | ||
| Masahiro Shige, Toyota (Japan); Tadaichi Matsumoto, Okazaki (Japan); Shigeto Kajiwara, Toyota (Japan); and Hideki Kashiwagi, Nagoya (Japan) | ||
| Assigned to Toyota Jidosha Kabushiki Kaisha, Toyota (Japan); and Denso Corporation, Kariya (Japan) | ||
| Filed on Apr. 13, 2004, as Appl. No. 10/822,837. | ||
| Claims priority of application No. 2003-116526 (JP), filed on Apr. 22, 2003. | ||
| Prior Publication US 2004/0214054 A1, Oct. 28, 2004 | ||
| Int. Cl. H01M 8/04 (2006.01); H01M 8/12 (2006.01) | ||
| U.S. Cl. 429—22 [429/23; 320/101] | 6 Claims |
| 1. A fuel cell system comprising:
a fuel cell having output terminals;
a voltage converter that is connected to said output terminals of said fuel cell;
an electrical storage device that is connected in parallel to said fuel cell via said voltage converter and is capable of
power charging and discharging;
a current detector that detects a current value of said fuel cell; and
a current offset correction value determination device that determines a current offset correction value for said current
detector by setting an output terminal voltage of said fuel cell to an open circuit voltage via said voltage converter, wherein
said fuel cell system is mounted in a moving object, said current offset correction value determination device determines
said current offset correction value by setting the output terminal voltage of said fuel cell to the open circuit voltage
during a period that the moving object does not require power generation by said fuel cell.
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