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:
Mar. 03, 2009
Filed:
Oct. 19, 2007
Dirk Hartmann, Stuttgart, DE;
Werner Mezger, Eberstadt, DE;
Kristina Milos, Leonberg, DE;
Andreas Roth, Muehlacker-Lomersheim, DE;
Juergen Rappold, Ilsfeld-Auenstein, DE;
Georg Mallebrein, Korntal-Muenchingen, DE;
Nikolas Poertner, Stuttgart, DE;
Henri Barbier, Schwieberdingen, DE;
Ingo Fecht, Ludwigsburg, DE;
Dirk Hartmann, Stuttgart, DE;
Werner Mezger, Eberstadt, DE;
Kristina Milos, Leonberg, DE;
Andreas Roth, Muehlacker-Lomersheim, DE;
Juergen Rappold, Ilsfeld-Auenstein, DE;
Georg Mallebrein, Korntal-Muenchingen, DE;
Nikolas Poertner, Stuttgart, DE;
Henri Barbier, Schwieberdingen, DE;
Ingo Fecht, Ludwigsburg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method and a device for operating an internal combustion engine having a plurality of cylinder banks which allow a simple diagnosis of a faulty deactivation of the gas exchange of at least one cylinder bank, or a simple determination of the ambient pressure. In the process, in addition to at least one first cylinder bank having activated gas exchange of at least one cylinder, a deactivation of the gas exchange of all cylinders of at least one second cylinder bank is initiated in at least one operating state of the internal combustion engine. The at least one second cylinder bank is assigned a separate intake tract. In the at least one operating state, a variable that is characteristic for the pressure in the intake tract of the at least one second cylinder bank is measured and evaluated for the presence of undesired pressure pulsations.