Fuel cell system control using cell voltage monitoring

Abstract

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.

Dependencies are inferred from the claim text.