Patent · US Expired

Method and device for controlling an internal combustion engine

US7654236B2 · kind B2 · utility

2Cited by

2References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jürgen Dingl · Regensburg, DE
Gerhard Schopp · Nittendorf, DE
Hong Zhang · Tegernheim, DE

Key dates

Filing date	Jul 7, 2005
Grant date	Feb 2, 2010
Priority date	—
Expiry date	Jul 7, 2025

Classification

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

Abstract

An internal combustion engine comprises an intake tract in which a throttle valve is disposed. The engine also comprises a camshaft which acts on gas inlet valves associated with respective cylinders. A phase-adjustment device is used to adjust a phase between the camshaft and a crankshaft. A desired air mass flow in a combustion chamber of the cylinder is determined depending on a charge requirement requested by the driver. The desired air mass flow is adjusted by varying the phase between the camshaft and the crankshaft if the desired air mass flow can be adjusted by varying the phase while substantially maintaining an actual pressure difference upstream and downstream of the throttle valve. Otherwise, the desired air mass flow is adjusted by varying the opening angle of the throttle valve.

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