Fuel cell system
AssigneeHonda Motor Co., Ltd.
InventorsNaoki Yamano, Takuya Tamura
Life of this patent
Estimating the term…
Abstract
A fuel cell system includes a first ion exchanger, a first fuel cell stack and a second fuel cell stack, a first temperature acquisition part and a second temperature acquisition part, a first power generation time acquisition part and a second power generation time acquisition part, a supply path, an ion concentration estimation part that estimates ion concentration of a refrigerant on the basis of the ion concentration estimated by the ion concentration estimation part, a determination part that determines an exchange timing of the first ion exchanger on the basis of the ion concentration estimated by the ion concentration estimation part, and a control part, and a first refrigerant flow path and a second refrigerant flow path are provided in series or in parallel.
Claims7
A fuel cell system comprising:
- a plurality of fuel cell stacks;
- a first ion exchanger configured to reduce an ion concentration in a refrigerant;
- a temperature acquisition part configured to acquire a temperature of the refrigerant in a plurality of refrigerant flow paths on a downstream side of the plurality of fuel cell stacks of the plurality of refrigerant flow paths for supplying the refrigerant to each of the plurality of fuel cell stacks;
- a power generation time acquisition part configured to acquire a power generation time of the plurality of fuel cell stacks;
- a supply path configured to supply the refrigerant discharged from the plurality of fuel cell stacks to the first ion exchanger;
- an ion concentration estimation part configured to estimate the ion concentration of the refrigerant based on at least one of the temperature of the refrigerant acquired by the temperature acquisition part and the power generation time of the plurality of fuel cell stacks acquired by the power generation time acquisition part;
- a determination part configured to determine an exchange timing of the first ion exchanger based on the ion concentration estimated by the ion concentration estimation part;
- and
- a control part configured to control the plurality of fuel cell stacks, the temperature acquisition part, the power generation time acquisition part, the ion concentration estimation part, and the determination part,
- wherein the plurality of refrigerant flow paths are provided in series or in parallel.
Dependencies are inferred from the claim text.