Pressure-maintaining function in a fully hybrid drive
US8032295B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2008 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Aug 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for maintaining and/or adjusting a system pressure in a fuel injection system of an internal combustion engine, in which the internal combustion engine is a part of an hybrid power train, which includes in addition at least one further drive. A system pressure in a reservoir element of the fuel injection system is monitored using a pressure sensor. In operating modes in which the internal combustion engine is shut down and/or is separated from the hybrid power train, the maintaining or the adjusting of the system pressure takes place via a pressure-regulating valve. The activation of the pressure-regulating valve takes place directly or indirectly via a control unit or a vehicle control unit or a clutch control unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.