Thermal management fan control method and device of fuel cell vehicle and storage medium

The invention provides a thermal management fan control method for a fuel cell vehicle, which comprises the following steps: continuously determining the startup and shutdown requirements of a fan in the working process of the fan; if the current moment is the fan gear shifting moment, the maintaining time after gear shifting is determined; the newest fan gear is used for controlling fan gear shifting, and the maintaining time after gear shifting is maintained; the fan gear shifting moment is updated to be the current moment plus the maintaining time after gear shifting; if the startup and shutdown demand is non-shutdown, returning to execute the step if the current moment is the fan gear shifting moment, and if the startup and shutdown demand is shutdown, executing shutdown processing of the fan; the newest fan gear is determined based on the newest fan initial gear and the newest fan correction gear, the fan initial gear is updated in real time based on the whole vehicle request power, and the fan correctio