Patent · US Active

Method for detecting the ambient pressure in an internal combustion engine

US7628061B2 · kind B2 · utility

2Cited by

9References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jürgen Dingl · Regensburg, DE
Gerhard Eser · Munich, DE
Gerhard Schopp · Nittendorf, DE

Key dates

Filing date	Jul 27, 2006
Grant date	Dec 8, 2009
Priority date	—
Expiry date	Jul 27, 2026

Classification

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

Abstract

There is described a method for detecting the ambient pressure by a pressure sensor in the intake pipe of an internal combustion engine. A throttle flap is opened so that the pressure drop via the throttle flap can be neglected. The dethrottling of the internal combustion engine is compensated by the appropriate adjustment of the cam shaft in accordance with the operating state of the internal combustion engine, so that the measuring method is not being felt by the driver.

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