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:
Dec. 22, 2009
Filed:
Mar. 19, 2008
Dirk Hartmann, Stuttgart, DE;
Georg Mallebrein, Korntal-Muenchingen, DE;
Werner Mezger, Eberstadt, DE;
Henri Barbier, Schwieberdingen, DE;
Soenke Mannal, Stuttgart, DE;
Dirk Hartmann, Stuttgart, DE;
Georg Mallebrein, Korntal-Muenchingen, DE;
Werner Mezger, Eberstadt, DE;
Henri Barbier, Schwieberdingen, DE;
Soenke Mannal, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method and a device for monitoring the intake manifold pressure of an internal combustion engine in which a measured signal for the intake manifold pressure is compared with a reference signal for the intake manifold pressure. For a deviation of the measured signal for the intake manifold pressure from the reference signal for the intake manifold pressure, a tolerance range is predefined for error-free operation of the intake and/or exhaust valves of at least one cylinder of the internal combustion engine. A check is made whether the measured signal for the intake manifold pressure deviates from the reference signal for the intake manifold pressure by more than a predefined tolerance range. In this case an erroneous operation of the intake and/or exhaust valves is detected; otherwise an error-free operation of the intake and/or exhaust valves is detected.