| 发明名称 | Apparatus and method for diagnosing fuel cell | ||
| 摘要 | An apparatus and method for diagnosing a fuel cell diagnoses a state of a fuel cell by estimating a fuel-cell equivalent circuit. The apparatus for diagnosing a fuel cell includes: an impedance measurement unit configured to measure impedance of a fuel cell within a predetermined frequency range; an equivalent circuit model unit configured to derive each parameter value by estimating a predetermined fuel-cell equivalent circuit model in response to the impedance received from the impedance measurement unit; and a fuel-cell-state diagnosis unit configured to diagnose a state of the fuel cell by detecting a variation of the parameter value derived from the equivalent circuit model unit. | ||
| 申请公布号 | US9634341(B2) | 申请公布日期 | 2017.04.25 |
| 申请号 | US201514686599 | 申请日期 | 2015.04.14 |
| 申请人 | Hyundai Motor Company | 发明人 | Won Sang Bok;Jeong Kwi Seong |
| 分类号 | H01M8/04537;G01R31/40 | 主分类号 | H01M8/04537 |
| 代理机构 | McDermott Will & Emery LLP | 代理人 | McDermott Will & Emery LLP |
| 主权项 | 1. An apparatus for diagnosing a fuel cell, comprising: an impedance measurement unit configured to measure impedance of a fuel cell within a predetermined frequency range; an equivalent circuit model unit configured to derive a parameter value by estimating a predetermined fuel-cell equivalent circuit model in response to the impedance received from the impedance measurement unit; and a fuel-cell-state diagnosis unit configured to diagnose a state of the fuel cell by detecting variation of the parameter value derived from the equivalent circuit model unit, wherein the equivalent circuit model unit derives at least one of parameters of a first ohmic resistor, a second active resistor, a capacitor, and a third resistor, and the equivalent circuit model unit derives parameter values of the second active resistor and the capacitor using a second equivalent circuit model within a second frequency range. | ||
| 地址 | Seoul KR | ||