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US 12,640,379 B2Granted
Fuel cell system
AssigneeHonda Motor Co., Ltd.
InventorsTomoyuki Inoue, Ryoji Sakai
Life of this patent
Estimating the term…
Abstract
A control device of a fuel cell system controls a temperature adjusting device in a manner that vapor in the oxygen-containing off-gas discharged from a fuel cell stack is saturated.
Claims8
A fuel cell system comprising:
- a fuel cell stack configured to generate electric power using an oxygen-containing gas and a fuel gas;
- a supply passage through which the oxygen-containing gas flows to be supplied to the fuel cell stack;
- a discharge passage through which the oxygen-containing off-gas discharged from the fuel cell stack flows;
- a humidifying device connected to the supply passage and directly connected to the discharge passage and configured to render the fuel cell stack humidified;
- a temperature adjusting device configured to adjust a temperature of the fuel cell stack as a stack temperature;
- a temperature acquiring device configured to acquire the stack temperature;
- and
- one or more processors that execute computer-executable instructions stored in a memory, wherein the one or more processors are configured by the computer-executable instructions to cause the fuel cell system to:
- assess, on a basis of the stack temperature acquired by the temperature acquiring unit, a level of humidification attained to the fuel cell stack by the humidifier, and control the stack temperature through the temperature adjusting device, and
- control the temperature adjusting device in a manner that vapor in the oxygen-containing off-gas discharged from the fuel cell stack is saturated.
7 more elements
A fuel cell system comprising:
- a fuel cell stack configured to generate electric power using an oxygen-containing gas and a fuel gas;
- a supply passage through which the oxygen-containing gas flows to be supplied to the fuel cell stack;
- a discharge passage through which the oxygen-containing off-gas discharged from the fuel cell stack flows;
- a humidifying device connected to the supply passage and directly connected to the discharge passage and configured to render the fuel cell stack humidified;
- a temperature adjusting device configured to adjust a temperature of the fuel cell stack as a stack temperature;
- a temperature acquiring device configured to acquire the stack temperature;
- and
- one or more processors that execute computer-executable instructions stored in a memory, wherein the one or more processors are configured by the computer-executable instructions to cause the fuel cell system to:
- determine whether vapor in the oxygen-containing off-gas discharged from the fuel cell stack is saturated, and
- in a case where the vapor in the oxygen-containing off-gas is not saturated, control the stack temperature by controlling the temperature adjusting device so as to make the vapor in the oxygen-containing off-gas saturated, and
- in a case where the vapor in the oxygen-containing off-gas is saturated, perform control in accordance with estimated level of humidification achieved by the humidifying device.
8 more elements
Dependencies are inferred from the claim text.