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:
Apr. 24, 2012
Filed:
Jun. 11, 2008
Helge Frauenkron, Markgroeningen, DE;
Helge Frauenkron, Markgroeningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a method for operating an internal combustion engine () having a plurality of combustion chambers (), wherein the combustion chambers () make moment contributions during operation of the internal combustion engine () to the resulting engine moment of the internal combustion engine () and each combustion chamber () is assigned at least one inlet valve () which is actuated on the basis of a predefined valve lift cam which can be selected from a plurality of valve lift cams, the moment contribution of each combustion chamber () is selected, in the case of a valve lift switchover from a first valve lift cam to a second valve lift cam, for a following ignition cycle in such a way that a deviation of a sliding mean value of the moment contributions of all the combustion chambers () over a plurality of consecutive ignition cycles from a predefined moment setpoint value is minimized.