The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2005
Filed:
Dec. 22, 2001
Eberhard Schnaibel, Hemmingen, DE;
Wilfried Tuleweit, Schwieberdingen, DE;
Manfred Pfitz, Vaihingen, DE;
Roland Herynek, Oetisheim, DE;
Holger Bellmann, Ludwigsburg, DE;
Gholamabas Esteghlal, Ludwigsburg, DE;
Detlef Heinrich, Ludwigsburg, DE;
Lutz Reuschenbach, Stuttgart, DE;
Georg Mallebrein, Korntal-Muenchingen, DE;
Eberhard Schnaibel, Hemmingen, DE;
Wilfried Tuleweit, Schwieberdingen, DE;
Manfred Pfitz, Vaihingen, DE;
Roland Herynek, Oetisheim, DE;
Holger Bellmann, Ludwigsburg, DE;
Gholamabas Esteghlal, Ludwigsburg, DE;
Detlef Heinrich, Ludwigsburg, DE;
Lutz Reuschenbach, Stuttgart, DE;
Georg Mallebrein, Korntal-Muenchingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
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.