Patent · US Active

Method for controlling an internal combustion engine

US7461644B2 · kind B2 · utility

0Cited by

5References

6Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Alfred Elsässer · Keltern, DE
Jörg Rückauf · Schwieberdingen, DE

Key dates

Filing date	Apr 25, 2007
Grant date	Dec 9, 2008
Priority date	—
Expiry date	Apr 25, 2027

Classification

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

Abstract

A method for controlling a dethrottled internal combustion engine, which has a shared fresh gas line which supplies fresh gas to fresh gas pipes, which in turn supply fresh gas to each cylinder. The engine has at least one intake valve per cylinder, a clocked valve per fresh gas pipe for opening and closing the gas pipe and a fuel injector for each cylinder, for metered addition of fuel. The chronological location of the injection time of the fuel is adjusted for the respective cylinder as a function of a point in time of a change in the switch position of the respective clocked valve, to improve the emission values of the engine. In addition, the clocked valves are controlled so that the metered addition of fresh gas is accomplished for the respective cylinder.

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