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:
Jan. 08, 2013
Filed:
Jun. 17, 2009
Georg Mallebrein, Korntal-Muenchingen, DE;
Michael Frank, Vaihingen/Enz, DE;
Alexander Schenck Zu Schweinsberg, Moeglingen, DE;
Helerson Kemmer, Vaihingen, DE;
Wolfgang Samenfink, Besigheim, DE;
Georg Mallebrein, Korntal-Muenchingen, DE;
Michael Frank, Vaihingen/Enz, DE;
Alexander Schenck Zu Schweinsberg, Moeglingen, DE;
Helerson Kemmer, Vaihingen, DE;
Wolfgang Samenfink, Besigheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a control unit, a method, a computer program and a computer program product for operating an internal combustion engine in the context of a combined direct and manifold injection, fuel is injected by at least one first injection valve into an induction manifold and/or by at least one second injection valve directly into a combustion chamber for combustion. In at least one predefined operating state of the internal combustion engine, fuel is only injected by the at least one first injection valve into the induction manifold for a predetermined number of successive combustion cycles. In a subsequent combustion cycle, fuel is injected by the at least one first injection valve into the induction manifold and by the at least one second injection valve directly into the combustion chamber or only by the at least one second injection valve directly into the combustion chamber.