System and method for controlling operation of fuel cell hybrid system by switching to battery power in response to idle stop condition
US8859158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Nov 25, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a hybrid fuel cell system that is configured to determine if an idle stop condition has been satisfied during a normal operation mode of the hybrid fuel cell system, cut off air supply to a fuel cell to stop power generation of the fuel cell and reduce a voltage which the fuel cell outputs in response to determining that the idle stop condition has been satisfied. The voltage of a bidirectional converter, connected between a battery and a bus terminal is reduced and the output of the fuel cell is controlled, based on a first predetermined value and maintained at that first predetermined value. Subsequently, the battery is charged via the output current of the fuel cell generated by maintaining the reduced voltage of the bidirectional converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.