Patent · US Expired

Method and device for controlling an internal combustion engine

US7032557B2 · kind B2 · utility

0Cited by

4References

27Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hubert Limbrunner · Kirchroth, DE
Frank Tettenborn · Obertraubling, DE
Berthold Wolfram · Regensburg, DE

Key dates

Filing date	Jan 16, 2004
Grant date	Apr 25, 2006
Priority date	—
Expiry date	Jun 23, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An internal combustion engine has an intake device (1), the intake pipes (5 to 8) for the intakes of cylinders of the internal combustion engine and actuators for adjusting the effective pipe lengths of the intake pipes (5 to 8) by closing or opening at least one opening of the intake pipes (5 to 8) up to a hollow body and at least one actuator for controlling the actuators. Within a first speed range whose upper limit is a first threshold value (N1), the actuators are moved into a closed position. For a speed (N), exceeding a first threshold value (N1) and being less than a second threshold value (N2), the actuators are moved into a leakage position. For a speed exceeding the second threshold value (N2), the actuators are moved into an open position.

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