Method for controlling a high-pressure fuel pump
US9217406B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2009 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Jun 7, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/0225
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electrically controllable electromechanical inlet valve (2a) which is closed in the currentless state and is held in the closed state by the force of a spring (2b), an outlet valve (5a), and a displacement element (6), the inlet valve is operated in a self-controlling operating mode after a start command is present. In the self-controlling operating mode, the rail pressure is built without knowledge of the phase position of the displacement element. During the self-controlling operating mode, the phase position of the displacement element is determined. After the phase position of the piston or displacement element is determined, the inlet valve is switched over to a non-self-controlling operating mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.