AIR SUPPLY CONTROL METHOD TO FUEL CELL SYSTEM

A system for controlling gas flow in a fuel cell circuit includes a fuel cell stack and a valve designed to adjust gas flow through the circuit. The system further includes an ECU that is designed to determine a target flow rate of the gas through the valve. The ECU is further designed to determine a flow compensation value corresponding to an amount of compensation of the target flow rate of the gas through the valve that compensates for fluid accumulation or decumulation in the fuel cell circuit. The ECU is further designed to determine a compensated target flow rate of the gas through the valve based on the target flow rate and the flow compensation value. The ECU is further designed to determine a desired valve position of the valve based on the compensated target flow rate and to control the valve to have the desired valve position.