Control detection method to enable gas composition observing during fuel cell system startup
US8951684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2010 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Sep 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A detection method for enabling gas composition observation during fuel cell system start-up is described. In one embodiment, the method includes initiating a flow of hydrogen to the anode to pressurize the anode; opening an anode flow valve; determining if an anode pressure exceeds an anode pressure threshold; enabling anode flow set point detection after a first predetermined time if the anode pressure exceeds the anode pressure threshold; monitoring an anode flow set point using the anode flow set point detection; determining if the anode flow set point exceeds an anode flow set point threshold; and closing the anode flow valve after a second predetermined time if the anode flow set point exceeds the anode flow set point threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.