FUEL CELL SYSTEM CONTROL USING CELL VOLTAGE MONITORING

This disclosure relates to a fuel cell system for vehicles that includes a controller that manages, among other things, the stack current and purge valve or drain valve operations based on a cell voltage monitoring energy indicator. When the energy indicator exceeds a predefined threshold, the controller reduces the stack current or adjusts the purge valve or drain valve—either opening it to mitigate flooding or closing it to prevent drying out.