Fuel cell thermal management control method based on combination of fuzzy logic and model

The invention discloses a fuel cell thermal management control method based on combination of fuzzy logic and a model. The method comprises the following steps: establishing a fuel cell stack calorific value calculation model, a cooling fan total heat exchange amount calculation model, a filter model and a deionizer model; building a cooling path system model of the fuel cell, controlling the heat to change along with the current, and transferring the heat to a cooling path; according to the cooling path system model and the specific state of the fuel cell system, determining the optimal working temperature of the fuel cell under the current output power, measuring the load current of the electric pile and the temperature difference value of the electric pile inlet, designing a fuzzy rule, and determining the output value of the duty ratio of the fan based on the fuzzy rule; a cooling path system model is used for simulating various extreme conditions, the change of the temperature change rate is detected, an