Method and control unit for controlling an internal combustion engine
US9273656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 4, 2011 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Aug 21, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/0092
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and a control unit are disclosed for controlling a single-cylinder or multiple-cylinder internal combustion engine having at least one fuel injector per cylinder, at least one camshaft for actuating inlet valves and/or outlet valves, and having a control unit which controls the fuel injectors in such a way that they inject in each case one fuel pre-injection per cylinder during a starting phase of the internal combustion engine. In order to make an improved pre-injection strategy possible during the starting phase, according to the invention at least one cylinder pressure signal which is supplied by a cylinder pressure sensor for measuring the pressure in a cylinder is evaluated with regard to interference signals, and the evaluation result is taken into consideration at least during the starting phase in a determination of the camshaft angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.