COTROLLER FOR ESTIMATING RELATIVE HUMIDITY AND CONDENSED WATER, AND METHOD FOR COTROLLING CONDENSED WATER DRAIN USING THE SAME

摘要

PURPOSE: An observer of relative humidity for a fuel battery and condensed water and a control method of condensed water using thereof are provided to dynamically presume the relative humidity and condensed water within a fuel cell system based on existed sensor signals. CONSTITUTION: An observer of relative humidity for a fuel battery(10) mounts controllers(20,30,50) for dynamically presuming relative humidity and condensed water within a fuel cell system based on flow rate dynamics of oxygen, nitrogen, hydrogen, and water and a weight balance chemical formula. The observer utilizes for fuel cell system control which includes anode condensed water drain control by outputting more than two kinds of signals among various measured signals.