Control system and method for rapidly establishing thermal management water pressure of hydrogen fuel cell vehicle

The invention discloses a control system and a control method for quickly establishing thermal management water pressure of a hydrogen fuel cell vehicle. The system and the method are used for quicklyestablishing a pile thermal management system. The control system comprises a pressurizing water pump, a hydrogen fuel cell stack, a deionizer, a heat dissipation water tank, a water supplementing kettle, a temperature sensor and an electric control three-way valve. The water supplementing kettle, the electric control three-way valve, the pressurizing water pump and the hydrogen fuel cell stack are sequentially arranged and connected together through a pipeline to form a cooling loop, the deionizer, an adjusting pipeline and the heat dissipation water tank which are connected with the hydrogen fuel cell stack in parallel are arranged on the cooling loop, and the electric control three-way valve is located at the intersection of the adjusting pipeline and the cooling pipeline. Corresponding heat management can be