Fuel cell i.e. polymer electrolyte membrane fuel cell stack, cooling method for use in fuel cell system of car, involves performing reduction of volumetric flow with predetermined function in computation of pilot control of cooling medium

摘要

The method involves adapting volumetric flow of a cooling medium to influence of cooling performance. Pilot control of the cooling medium is performed by a power parameter of a fuel cell (3) via a pilot controller (14), and input temperature of the fuel cell exceeds a predetermined threshold valve while sliding down the power parameter. Reduction of the volumetric flow with a predetermined function is performed in the computation of the pilot control of the cooling medium, where the predetermined function is designed as a linear function with variable pitches.