Patent · US Expired

Method for determining mass flows into the inlet manifold of an internal combustion engine

US6886399B2 · kind B2 · utility

7Cited by

9References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Eberhard Schnaibel · Hemmingen, DE
Wilfried Tuleweit · Schwieberdingen, DE
Manfred Pfitz · Leinfelden, DE
Roland Herynek · Rain, DE
Holger Bellmann · Ludwigsburg, DE
Gholamabas Esteghlal · Ditzingen, DE
Detlef Heinrich · Ludwigsburg, DE
Lutz Reuschenbach · Stuttgart, DE
Georg Mallebrein · Stuttgart, DE

Key dates

Filing date	Dec 22, 2001
Grant date	May 3, 2005
Priority date	—
Expiry date	Dec 22, 2021

Classification

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

Abstract

A method detects mass flows to the intake manifold of an internal combustion engine having a device for controlling the air supply to the intake manifold and having a sensor for detecting the intake manifold pressure and having a control apparatus for evaluating a trace of the intake manifold pressure. In the context of the method, when the internal combustion engine is switched off, the supply of air to the intake manifold is reduced in a predetermined manner and the trace of the intake manifold pressure, which adjusts thereupon, is evaluated for detecting the mass flows.

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