Usage of regenerative brake power for system restart in start-stop operation of fuel cell hybrid vehicles
US9912025B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2010 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Dec 15, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method are disclosed for using regenerative braking power to start a fuel cell stack for system restart during a start/stop operation of a fuel cell hybrid vehicle. The method includes disconnecting the fuel cell stack from a high voltage bus for the start/stop operation and using regenerative braking power provided by an electric traction system to recharge a battery in the hybrid vehicle during the start/stop operation. The method also includes reconnecting the fuel cell stack to the high voltage bus and providing at least some of the regenerative braking power from the electric traction system to a compressor that provides cathode air to the fuel cell stack when the stack is reconnected to the high voltage bus at the end of the start/stop operation. A bi-directional DC converter selectively distributes the power to the compressor and the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.