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US 11,695,141 B2Granted
Fuel cell system
AssigneeHonda Motor Co., Ltd.
InventorsRyoji Sakai, Kazuhide Inoue
Life of this patent
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Abstract
An ECU of a fuel cell system supplies cathode gas by rotating an air pump at a low-load rotational speed and performs a low-load power generation in a fuel cell stack, while a moving body is traveling. When the fuel cell stack generates power while the moving body is stopped, the ECU increases the supply amount of the cathode gas by rotating the air pump at a during-stoppage-of-traveling rotational speed which is greater than the low-load rotational speed.
Claims8
A fuel cell system provided in a moving body, comprising:
- a fuel cell stack;
- an air pump configured to supply cathode gas to the fuel cell stack;
- a cathode discharge path through which cathode off-gas is discharged from the fuel cell stack;
- an anode path configured to allow anode gas to flow through the fuel cell stack;
- one or more discharge paths configured to guide the anode gas of the anode path to the cathode discharge path;
- and
- a control device configured to control operation of the air pump,
- wherein the control device is configured to:
- while the moving body is traveling, supply the cathode gas by rotating the air pump at a low-load rotational speed and perform a low-load power generation in the fuel cell stack;
- and
- in a case where power generation of the fuel cell stack is performed while the moving body is stopped, increase a supply amount of the cathode gas by rotating the air pump at a travel-stopping rotational speed, which is greater than the low-load rotational speed.
8 more elements
Dependencies are inferred from the claim text.