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. 23, 2010
Filed:
Nov. 19, 2008
Axel Loeffler, Backnang, DE;
Wolfgang Fischer, Gerlingen, DE;
Roland Karrelmeyer, Bietigheim-Bissingen, DE;
Gerald Graf, Gaertringen, DE;
Axel Loeffler, Backnang, DE;
Wolfgang Fischer, Gerlingen, DE;
Roland Karrelmeyer, Bietigheim-Bissingen, DE;
Gerald Graf, Gaertringen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for operating a self-igniting internal combustion engine includes: introduction of a prespecified pre-injection quantity (PI) of a fuel into the internal combustion engine before and/or during an intermediate compression; determination of a pressure characteristic (PZV) in the internal combustion engine during the intermediate compression; prespecification of a target pressure characteristic (PZV); comparison of the determined pressure characteristic (PZV) with the prespecified target pressure characteristic (PZV); determination that no release of energy occurred during the intermediate compression, provided that the determined pressure characteristic (PZV) is lower than the target pressure characteristic (PZV); and compensation of the non-occurrence of the energy release and its effect on a main combustion.