Fuel cell system and liquid water amount estimating method
AssigneeToyota Jidosha Kabushiki Kaisha
InventorKatsuya Komaki
Life of this patent
Estimating the term…
Abstract
A fuel cell system includes: a fuel cell stack at which generation of electricity is carried out by chemical reaction of hydrogen and oxygen, and from which water and exhaust are discharged; and a liquid water amount estimation section that estimates an amount of liquid water among the discharged water, based on an amount of current that is generated by the fuel cell stack, an amount of air that is supplied to the fuel cell stack, a temperature of the air, a relative humidity of the air, a temperature of exhaust that is discharged from the fuel cell stack, and a pressure of the exhaust.
Claims4
A fuel cell system comprising:
- a fuel cell stack at which generation of electricity is carried out by chemical reaction of hydrogen and oxygen, and from which water and exhaust are discharged;
- and
- a liquid water amount estimation section that estimates an amount of liquid water among the discharged water, based on an amount of current that is generated by the fuel cell stack, an amount of air that is supplied to the fuel cell stack, a temperature of the air, a relative humidity of the air, a temperature of exhaust that is discharged from the fuel cell stack, and a pressure of the exhaust.
A liquid water amount estimating method that is applied to a fuel cell system including a fuel cell stack at which generation of electricity is carried out by chemical reaction of hydrogen and oxygen and from which water and exhaust are discharged, the method comprising:
- estimating an amount of liquid water among the discharged water, based on an amount of current that is generated by the fuel cell stack, an amount of air that is supplied to the fuel cell stack, a temperature of the air, a relative humidity of the air, a temperature of exhaust that is discharged from the fuel cell stack, and a pressure of the exhaust.
Dependencies are inferred from the claim text.