Patent · US Active

Method and apparatus for determining and regulating an exhaust gas recirculation rate of an internal combustion engine

US8844499B2 · kind B2 · utility

1Cited by

5References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Guido Porten · Wiernsheim, DE
Markus Amler · Rutesheim, DE
Lanouar Chouk · Morsbach, DE
Jan-Mathias Meng · Ditzingen, DE
Uwe Mueller · Cleebronn, DE

Key dates

Filing date	Nov 11, 2010
Grant date	Sep 30, 2014
Priority date	—
Expiry date	Dec 17, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a method and an apparatus for determining an exhaust gas recirculation rate in an internal combustion engine, in which the exhaust gas recirculation rate indicates a proportion of exhaust gas in a gas quantity delivered to a cylinder of the internal combustion engine, and combustion takes place in the cylinder of the engine cyclically during a combustion phase. The method includes the steps of ascertaining a combustion course statement over the course of combustion in the cylinder of the engine, and ascertaining an actual exhaust gas recirculation rate from the combustion course statement with the aid of a predetermined exhaust gas recirculation rate function. The invention further relates to a method and an apparatus for regulating an exhaust gas recirculation rate in an internal combustion engine, in which the exhaust gas recirculation rate indicates a proportion of exhaust gas in a gas quantity delivered to a cylinder of the internal combustion engine, and combustion takes place in the cylinder of the engine cyclically during a combustion phase. The method includes the steps of ascertaining a combustion course statement over the course of combustion in t…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.