Engine startup fuel pressure control systems and methods
US8042520B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2009 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Apr 28, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/31
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel pressure control system for a vehicle comprises a pressure regulator module and a pressure increasing module. The pressure regulator module regulates a fuel pressure supplied to an engine to a first predetermined pressure during an engine running period. The pressure increasing module selectively increases the fuel pressure to a second predetermined pressure during the engine running period when a counter value is one of greater than and less than a predetermined final value. The second predetermined pressure is greater than the first predetermined pressure, and the counter value is set to the predetermined final value after the engine is started for a first time after being assembled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.