Fuel cell system
US9692068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Nov 10, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell system includes: a fuel cell; a coolant path connected to the fuel cell and allowing a coolant that cools the fuel cell to flow therethrough; a temperature detection unit configured to detect a temperature of the coolant in the coolant path; a temperature correction unit configured to calculate a temperature correction value by correcting the temperature of the coolant detected by the temperature detection unit; and a lower limit voltage control unit configured to control a lower limit voltage of the fuel cell based on the temperature correction value, wherein the temperature correction unit calculates the temperature correction value based on a following equation:where Tfilt represents the temperature correction value, Tfilt_old represents a last temperature correction value, T represents the temperature of the coolant, and τ represents a coefficient, and the coefficient when the temperature of the coolant is less than a first predetermined value is set to be greater than the coefficient when the temperature of the coolant is equal to or greater than a second predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.