Fuel cell system, operation method thereof, and fuel cell vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTetsuya Bono
Life of this patent
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Abstract
In order to prevent the fuel economy from being lowered by a wasteful discharge of fuel gas, in the operation method of a fuel cell system capable of performing intermittent operation for temporarily stopping power generation of the fuel cell, in the case where the secondary pressure of the tank regulator becomes at least a first threshold during intermittent operation, the intermittent operation is stopped and the normal operation is returned. In the case where the intermittent operation is stopped a number of times, subsequent intermittent operation may be prohibited.
Claims11
An operation method of a fuel cell system comprising gas systems in which reactant gas flows, and a fuel cell connected to the gas systems, the fuel cell system being capable of performing intermittent operation for temporarily stopping power generation of the fuel cell and normal operation where the fuel cell generates power, the method comprising the steps of:
- acquiring a pressure value on an upstream side of the fuel cell;
- stopping intermittent operation of fuel cell when the pressure on the upstream side of the fuel cell is pressurized to normal operation pressure or higher;
- and
- restarting power generation of the fuel cell when intermittent operation is stopped,
- wherein the pressure on the upstream side of the fuel cell is secondary pressure of a regulator disposed in the gas system.
An operation method of a fuel cell system comprising gas systems in which reactant gas flows, and a fuel cell connected to the gas systems, the fuel cell system being capable of performing intermittent operation for temporarily stopping power generation of the fuel cell and normal operation where the fuel cell generates power, the method comprising the steps of:
- acquiring a pressure value on an upstream side of the fuel cell;
- stopping intermittent operation of fuel cell when the pressure on the upstream side of the fuel cell is pressurized to normal operation pressure or higher;
- and
- restarting power generation of the fuel cell when intermittent operation is stopped,
- wherein the pressure on the upstream side of the fuel cell is inlet pressure of the fuel cell.
Dependencies are inferred from the claim text.