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. 30, 2010
Filed:
Nov. 11, 2008
Ruediger Weiss, Moetzingen, DE;
Andreas Schmidt, Muehlacker, DE;
Jean-marc Tonye Djon, Stuttgart, DE;
Jochen Laubender, Markgroeningen, DE;
Manfred Dietrich, Markgroeningen, DE;
Elias Calva, Stuttgart, DE;
Michael Drung, Muehlacker, DE;
Karsten Kroepke, Ludwigsburg, DE;
Ruediger Weiss, Moetzingen, DE;
Andreas Schmidt, Muehlacker, DE;
Jean-Marc Tonye Djon, Stuttgart, DE;
Jochen Laubender, Markgroeningen, DE;
Manfred Dietrich, Markgroeningen, DE;
Elias Calva, Stuttgart, DE;
Michael Drung, Muehlacker, DE;
Karsten Kroepke, Ludwigsburg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a method for operating a direct-injection internal combustion engine, a position of at least one piston inside a cylinder in which the combustion engine is at a standstill is determined; and a starting cylinder into which fuel is injected first is selected for a start following the standstill. An instantaneous charge of the starting cylinder is determined as a function of a duration of the standstill of the combustion engine. A distance (d) between the piston of the starting cylinder and a specified position of the piston is calculated. A minimum distance of the piston of the selected cylinder is determined as a function of the instantaneous charge; and another cylinder is selected as starting cylinder if the distance (d) between the piston of the starting cylinder and the specified position is less than the minimum distance.