Method and System for Dynamically Modifying Fuel Cell Stack Current to Manage Fuel Cell Membrane Hydration
AssigneeFord Global Technologies, LLC
InventorsZeng QUI, Mostafa-Ali AYUBIRAD, Hao WANG, Majed BEN-KALEFA, Rajit JOHRI, William Frederick SANDERSON, JR.
Life of this patent
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Abstract
A system includes a fuel cell stack (FCS) and a controller. The controller is configured to, in response to a stack current request corresponding to a stack current of the FCS which would cause a membrane hydration level of the FCS to be outside of a desired hydration range, adjust the stack current request to correspond to an adjusted stack current of the FCS which causes the membrane hydration level to be maintained within the desired hydration range.
Claims20
A system comprising:
- a fuel cell stack (FCS);
- and
- a controller configured to, in response to a stack current request corresponding to a stack current of the FCS which would cause a membrane hydration level of the FCS to be outside of a desired hydration range, adjust the stack current request to correspond to an adjusted stack current of the FCS which causes the membrane hydration level to be maintained within the desired hydration range.
A vehicle comprising:
- a traction battery;
- a fuel cell stack (FCS);
- and
- a controller configured to, in response to a stack current request corresponding to a stack current of the FCS which would cause a membrane hydration level of the FCS to be outside of a desired hydration range, adjust the stack current request to correspond to an adjusted stack current of the FCS which causes the membrane hydration level to be maintained within the desired hydration range and control the traction battery according to the adjustment of the stack current request.
A method for a vehicle having a fuel cell system (FCS), the method comprising:
- responsive to a stack current request corresponding to a stack current of the FCS which would cause a membrane hydration level of the FCS to be outside of a desired hydration range, adjusting the stack current request to correspond to an adjusted stack current of the FCS which causes the membrane hydration level to be maintained within the desired hydration range.
Dependencies are inferred from the claim text.