Fuel cell system with wetness sensor
AssigneeFord Global Technologies, LLC
InventorsTie Wang, Chendong Huang, James A. Adams, Shinichi Hirano, George S. Saloka, Mark S. Sulek, James Waldecker, Alireza Pezhman Shirvanian
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Abstract
A fuel cell system may have at least one sensor including a pair of electrodes disposed on a substrate. The sensor may be configured to produce an output signal having a magnitude that is proportional to a relative humidity in a vicinity of the sensor and, if liquid water is on the sensor, proportional to an amount of the liquid water on the sensor.
Claims17
A fuel cell system having at least one sensor including a pair of electrodes disposed on a substrate, the sensor configured to produce an output signal having a magnitude that is (i) proportional to a relative humidity in a vicinity of the sensor and (ii), if liquid water is on the sensor, proportional to an amount of the liquid water on the sensor.
A fuel cell system comprising:
- a fuel cell stack;
- an air supply line in fluid communication with the fuel cell stack;
- a fuel supply line in fluid communication with the fuel cell stack;
- and
- a sensor disposed in one of the supply lines or the fuel cell stack, the sensor including a pair of electrodes disposed on a substrate and configured to produce an output signal having a magnitude that is (i) proportional to a relative humidity in a vicinity of the sensor and (ii), if liquid water is on the sensor, proportional to an amount of the liquid water on the sensor.
A fuel cell system including at least one sensor having a pair of electrodes disposed on a substrate, the at least one sensor configured to produce an output signal having a magnitude that is proportional to an amount of liquid water on the sensor based on an electrical potential difference between the electrodes.
Dependencies are inferred from the claim text.