Method and control unit for operating an internal combustion engine having an injection system
US7543566B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2004 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Dec 8, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/31
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a method, a computer program and a control unit for operating an internal combustion engine having an injection system, e.g., for a motor vehicle, in the injection system fuel is conveyed into a fuel accumulator by a metering unit and a high-pressure pump. The pressure in the fuel accumulator is recorded and controlled by control of the metering unit with the aid of the control unit. In order to consider also possible manufacturing tolerances of individual metering units in the control of the pressure in the fuel accumulator of such a system, which is already known as such, and thereby make the control more precise, an individual characteristic curve is provided for the actually used metering unit be ascertained and taken into account in the pressure regulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.