System and method for humidification of fuel cell electric vehicle

A system for humidification of a fuel cell electric vehicle, the system comprising:

• a fuel cell stack for generating electrical energy through an electrochemical reaction of hydrogen and oxygen;
• a water supply tank for storing water generated during the electrical energy generation in the fuel cell stack;
• a first duct for supplying air exhausted from a heating, ventilation, and air conditioning (HVAC) apparatus to a vehicle glass;
• a second duct for supplying air exhausted from the HVAC apparatus into a vehicle interior;
• a humidification apparatus for humidifying air supplied through the second duct using water supplied from the water supply tank, wherein the humidification apparatus includes:
• a water trap for storing water supplied from the water supply tank;
• a first humidifier including an ultrasonic generator for generating an ultrasonic wave to decompose water stored in the water trap;
• and
• a second humidifier including a heating apparatus for heating water supplied from the water supply tank to generate water vapor and supplying the generated water vapor to the second duct;
• and
• a controller configured to supply air to the vehicle glass through the first duct to perform anti-fogging control of the vehicle glass when adjusting an inside humidity of the vehicle using the humidification apparatus.