Driving control method of fuel cell system
US10553884B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 24, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Aug 9, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of controlling the driving of a fuel cell system includes: determining whether the fuel cell system enters idle stop in which air supply to the fuel cell stack stops; dropping a DC-link terminal voltage controlled by a DC-DC converter up to a first set voltage by controlling an operation of the DC-DC converter connected to a DC-link terminal outputting generation power of the fuel cell stack at the time of entering the idle stop; and dropping a voltage of the fuel cell stack to reduce an oxide of platinum which is a catalyst of a fuel cell by allowing the anode exhaust gas to flow backward into a cathode of the fuel cell stack by performing the hydrogen purge in an idle stop state of opening the hydrogen purge valve after the voltage of the DC-link terminal drops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.