Fuel cell system
AssigneeNissan Motor Co., Ltd.
InventorYoshitomo ASAI
Life of this patent
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Abstract
A fuel cell system includes a supply valve for supplying an anode gas into an anode system, a purge valve for discharging an off-gas from the anode system, a pressure detecting portion configured to estimate or measures a pressure inside the anode system, a supply valve control portion configured to control an open/close operation of the supply valve based on a load of the fuel cell, a purge flow rate estimating portion configured to estimate a purge flow rate of the off-gas discharged from the anode system through the purge valve based on a pressure decrease inside the anode system in a supply valve close state, and a purge valve control portion configured to open the purge valve in synchronization with the supply valve close state.
Claims13
1-12. (canceled)
A fuel cell system having a fuel cell supplied with an anode gas and a cathode gas to generate electricity from the fuel cell depending on a load, comprising:
- a supply valve for supplying the anode gas into an anode system of the fuel cell system;
- a purge valve for discharging an off-gas from the anode system;
- a pressure detecting unit configured to estimate or measures a pressure inside the anode system;
- a supply valve control unit configured to control an open/close operation of the supply valve on the basis of a load of the fuel cell;
- a purge flow rate estimating unit configured to estimate a purge flow rate of the off-gas discharged from the anode system through the purge valve on the basis of a pressure decrease inside the anode system in a supply valve close state;
- and
- a purge valve control unit configured to open the purge valve in synchronization with the supply valve close state.
Dependencies are inferred from the claim text.