Method for calibration of the cylinder sensors suite on an internal combustion engine with individual cylinder operation in particular in a motor vehicle
US7260470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2003 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | May 26, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/281
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for calibrating at least two sensors for sensing a variable characterizing the combustion process in an internal combustion engine of a motor vehicle, operated in individual-cylinder fashion and having at least two cylinders, is provided. According to the present invention, at least one operating point of the internal combustion engine, at which an equalization of the at least two cylinders by at least one fuel quantity equalization method is performable with high accuracy, is determined. At the at least one operating point of the internal combustion engine, an equalization of the at least two cylinders is performed by the at least one fuel quantity equalization method. After the equalization of the at least two cylinders has been accomplished, at least one sensor parameter of the at least two sensors is mutually adjusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.