发明名称 |
FUEL CELL SYSTEM AND CONTROL METHOD THEREFOR |
摘要 |
A fuel cell system includes an auxiliary machine electrically connected to a fuel cell, the auxiliary machine being driven by power of the fuel cell, a heater electrically connected to the fuel cell, the heater being configured to heat cooling water supplied to the fuel cell, and a warm-up control unit configured to warm up the fuel cell itself by the supply of power to the auxiliary machine and the heater during start-up of the fuel cell below freezing point. The warm-up control unit includes a water amount computation unit configured to compute a produced water amount on the basis of a degree of wetness and a temperature of the fuel cell and a generated power of the fuel cell during warm-up, the produced water amount being a water amount produced in an electrolyte membrane until the temperature of the fuel cell increases to a freezing point temperature, and an anti-freezing control unit configured to increase a power ratio of power to the heater in regards to the auxiliary machine during the warm-up when the computed produced water amount is determined to be larger than a threshold value. |
申请公布号 |
US2015349360(A1) |
申请公布日期 |
2015.12.03 |
申请号 |
US201314759514 |
申请日期 |
2013.12.26 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
HOSHI Kiyoshi |
分类号 |
H01M8/04 |
主分类号 |
H01M8/04 |
代理机构 |
|
代理人 |
|
主权项 |
1. A fuel cell system comprising:
an auxiliary machine electrically connected to a fuel cell, the auxiliary machine being driven by power of the fuel cell; a heater electrically connected to the fuel cell, the heater being configured to heat cooling water supplied to the fuel cell; and a warm-up control unit configured to warm up the fuel cell itself by the supply of power to the auxiliary machine and the heater during start-up of the fuel cell below freezing point, wherein the warm-up control unit includes:
a water amount computation unit configured to compute a produced water amount on the basis of a degree of wetness and a temperature of the fuel cell and a generated power of the fuel cell during warm-up, the produced water amount being a water amount produced in an electrolyte membrane until the temperature of the fuel cell increases to a freezing point temperature; andan anti-freezing control unit configured to increase a power ratio of power to the heater in regards to the auxiliary machine during the warm-up when the computed produced water amount is determined to be larger than a threshold value. |
地址 |
Kanagawa JP |