Fuel cell vehicle with a water system

A method for operating a vehicle, comprising:

• operating at least one fuel cell stack, whereupon a heat exchanger for the at least one fuel cell stack counter-balances heat from the at least one fuel cell stack with heat rejected from the at least one fuel cell stack;
• operating a water system to pump water from the at least one fuel cell stack into a water reservoir;
• and
• in response to high water levels in the water reservoir:
• increasing electrical energy loads on at least one battery operable to store electrical energy from the at least one fuel cell stack;
• operating the at least one fuel cell stack for higher output, whereupon the heat exchanger under-balances heat from the at least one fuel cell stack with heat rejected from the at least one fuel cell stack;
• and
• operating the water system to apply water from the water reservoir onto the heat exchanger, whereupon the heat exchanger restoratively counter-balances heat from the at least one fuel cell stack with heat rejected from the at least one fuel cell stack.

A non-transitory computer-readable medium for operating a vehicle including instructions that when executed by one or more processors cause the one or more processors to:

• operate at least one fuel cell stack, whereupon a heat exchanger for the at least one fuel cell stack counter-balances heat from the at least one fuel cell stack with heat rejected from the at least one fuel cell stack;
• operate a water system to pump water from the at least one fuel cell stack into a water reservoir;
• and
• in response to high water levels in the water reservoir:
• increase electrical energy loads on at least one battery operable to store electrical energy from the at least one fuel cell stack;
• operate the at least one fuel cell stack for higher output, whereupon the heat exchanger under-balances heat from the at least one fuel cell stack with heat rejected from the at least one fuel cell stack;
• and
• operate the water system to apply water from the water reservoir onto the heat exchanger, whereupon the heat exchanger restoratively counter-balances heat from the at least one fuel cell stack with heat rejected from the at least one fuel cell stack.