FUEL CELL SYSTEM

摘要

A flow control valve 26 can adjust the percentage of the flow rate of cooling water to a radiator 23 to a predetermined value (50%) or smaller. When the temperature of the cooling water in a fuel cell 11 is determined to be a predetermined temperature (0° C.) or higher after the cooling water is supplied to the fuel cell 11 with the percentage of the flow rate of the cooling water to the radiator 23 set to the predetermined value (50%) or larger, a controller 41 performs a predetermined percentage supply operation for controlling the flow control valve 26 and a pump 22 to supply the cooling water to the fuel cell 11 with the percentage of the flow rate of the cooling water to the radiator 23 set to the predetermined value (50%) or larger.

主权项

1. A fuel cell system comprising:
a fuel cell into which cooling water is flown; a circulation passage connected to a cooling water inlet and a cooling water outlet of the fuel cell to circulate the cooling water; a pump provided in the circulation passage to pump the cooling water into the fuel cell from the cooling water inlet; a radiator provided in the circulation passage to dissipate heat from the cooling water; a bypass passage connected to the circulation passage in parallel with the radiator; a flow control valve provided in the circulation passage to adjust a ratio between flow rates of the cooling water pumped into the radiator and the bypass passage; and a controller for controlling the pump and the flow control valve, wherein the flow control valve can adjust percentage of the flow rate of cooling water to the radiator to a predetermined value or smaller, and when temperature of the cooling water in the fuel cell is determined to be a predetermined temperature or higher after the cooling water is supplied to the fuel cell with the percentage of the flow rate of the cooling water to the radiator set to the predetermined value or larger, the controller is programmed to perform a predetermined percentage supply operation for controlling the flow control valve and the pump to supply the cooling water to the fuel cell with the percentage of the flow rate of the cooling water to the radiator set to the predetermined value or larger, while when the temperature of the cooling water is determined to be lower than the predetermined temperature, the controller is programmed not to supply the cooling water to the fuel cell.