发明名称 |
Fuel cell voltage unit for detecting a failed plate connection |
摘要 |
A fuel cell system that includes a cell voltage monitoring sub-system that measures the cell voltage of each cell in a fuel cell stack and provides an indication of a low performing or failed cell. The fuel cell system uses the cell voltage monitoring sub-system to determine if one of the wires connected to a bipolar plate in the stack is broken or has otherwise failed. The cell voltage monitoring sub-system uses differential amplifiers to compare the positive side voltage and the negative side voltage of a cell to determine if the cell voltage is low or the cell is failing. By looking at the outputs of two differential amplifiers in the cell voltage monitoring sub-system, it can be determined whether adjacent cells provide an indication of both cells failing, which would indicate that a connection wire has failed.
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申请公布号 |
US2007231642(A1) |
申请公布日期 |
2007.10.04 |
申请号 |
US20060397199 |
申请日期 |
2006.04.04 |
申请人 |
STENGELIN HARTMUT;BAASER BERNHARD |
发明人 |
STENGELIN HARTMUT;BAASER BERNHARD |
分类号 |
H01M8/04 |
主分类号 |
H01M8/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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