APPARATUS AND METHOD FOR CONTROLLING PURGE VALVE OF FUEL CELL VEHICLE

摘要

An apparatus and method for controlling a purge valve of a fuel cell vehicle are provided to reduce a consumption amount of hydrogen and improve fuel efficiency. In particular, whether oxygen concentration in a channel of an anode of a fuel cell stack exceeds a reference value is estimated while restarting the vehicle after the vehicle is parked. Then, an open time of a purge valve is adjusted based on a parking time of a vehicle when the hydrogen concentration is greater than the reference value.

主权项

1. An apparatus for controlling a purge valve of a fuel cell vehicle, comprising:
a parking time measurer configured to measure a parking time of the vehicle; a temperature measurer configured to measure a first temperature of a fuel cell stack while turning off an ignition of the vehicle and a second temperature of the fuel cell stack while restarting the vehicle; an information obtainer configured to obtain an information value necessary to estimate whether hydrogen concentration in a channel of an anode of the fuel cell stack is greater than a reference value at a restarting timing of the vehicle; a purge valve driver configured to drive a purge valve; and a controller configured to operate the purge valve driver to open the purge valve during an open time that corresponds to the measured parking time based on a table in which open times that correspond to parking times are recorded, when the second temperature measured by the temperature measurer is greater than a first threshold and the information value obtained by the information obtainer is greater than the reference value.