Fuel cell stack cooling system control method and fuel cell controller

Abstract

The invention relates to the field of fuel cell automobiles, in particular to a fuel cell stack cooling system control method and a fuel cell controller. The fuel cell stack cooling system control method comprises the following steps of respectively calculating a rotating speed target value of a cooling water pump, an opening target value of an electronic thermostat and a rotating speed target value of a cooling fan, and controlling a rotating speed of the cooling water pump, an opening degree of the electronic thermostat and a rotating speed of the cooling fan to approach the rotating speed target value of the cooling water pump, the opening degree target value of the electronic thermostat and the rotating speed target value of the cooling fan. According to the fuel cell stack cooling system control method provided by the invention, by controlling parts of an electric pile cooling system, the temperature fluctuation of an electric pile can be reduced, so that the power generation efficiency of the electric pile is improved, frequent starting and stopping of related parts are avoided, the reliability of the whole system is improved, and the service life of the electric pile is prolonged.

Description

technical field [0001] The present application relates to the field of fuel cell vehicles, in particular to a method for controlling a fuel cell stack cooling system and a fuel cell controller. Background technique [0002] In recent years, new energy vehicles have developed rapidly, and fuel cell vehicles have made great progress. The working principle of fuel cell vehicles is that hydrogen fuel and oxygen undergo redox reactions to generate electric energy to drive the motor. The chemical reaction process of fuel cells will not produce harmful products, and its energy conversion efficiency is 2 to 3 times higher than that of internal combustion engines. Therefore, from the perspective of energy In terms of utilization and environmental protection, fuel cell vehicles are an ideal vehicle. With the advancement of technology and the needs of product promotion, the fuel cell system has changed from auxiliary power battery-driven vehicles to vehicles mainly driven by fuel cell...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a control method for the fuel cell stack cooling system to solve the problems of frequent start-up and shutdown of components in the stack cooling system and large temperature fluctuations of the stack in the related art.

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