A Development of the purge controller design based on H2 concentration estimator in Fuel Cell Electric Vehicle 2020-01-0854
The optimal control of anode H2 concentration in fuel cell is the key performance parameter for efficiency and durability of the FCEV. Due to the immaturity of the H2 concentration sensor, the anode H2 concentration estimator has been developed based on the knowledge of physical laws. Modeling simplification of plumbing and duct in H2 supply system causes estimation error depending on the driving cycle and environment condition, but proper design of calibration parameters can make the error within reasonable range. In this paper, mathematical model of H2 concentration estimator is proposed and the effectiveness of purge controller based on the estimator is demonstrated.