| 摘要 |
A temperature control scheme for a fuel cell stack thermal sub-system in a fuel cell system. The thermal sub-system includes a coolant loop directing the cooling fluid through the stack, a pump for pumping the cooling fluid through the coolant loop, a radiator for cooling the cooling fluid outside of the fuel cell stack and a bypass valve for selectively directing the cooling fluid in the coolant loop through the radiator or around the radiator. The control scheme generates an optimal model of the thermal sub-system using non-linear equations, and controls the speed of the pump and a position of the bypass valve in combination.
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