PREDICTION DEVICE AND METHOD FOR TEMPERATURE OF COOLING WATER OF FUEL CELL SYSTEM

摘要

PURPOSE: An apparatus and a method for predicting the coolant temperature of fuel cell system are provided to secure the controlling stability of the apparatus and to effectively prevent the overheat and the damage of a fuel cell stack. CONSTITUTION: A first temperature sensor detects the temperature of coolant at one side of the inlet or the outlet of a fuel cell stack(10). A flow meter(15) measures the flux of the coolant during the operation of a fuel cell. A controller(1) measures the heating value of the fuel cell stack. The controller predicts the temperature of coolant at another side of the inlet and the outlet of the fuel cell based on the flux of the coolant, the heating value of the fuel cell stack, and the detected temperature of the coolant.