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.

Date of Patent:
Oct. 24, 2017

Filed:

Feb. 15, 2014
Applicant:

Daimler Ag, Stuttgart, DE;

Inventors:

Dietmar Bertsch, Aspach, DE;

Harald Ott, Sachsenheim, DE;

Uwe Schaupp, Wernau, DE;

Assignee:

Daimler AG, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 5/04 (2006.01); F02D 41/30 (2006.01); F02P 5/00 (2006.01); F02P 15/08 (2006.01); F02D 41/40 (2006.01); F02D 35/02 (2006.01); F02D 37/02 (2006.01);
U.S. Cl.
CPC ...
F02P 5/045 (2013.01); F02D 35/021 (2013.01); F02D 37/02 (2013.01); F02D 41/3023 (2013.01); F02D 41/401 (2013.01); F02P 5/00 (2013.01); F02P 15/08 (2013.01); F02D 2200/1015 (2013.01); Y02T 10/44 (2013.01);
Abstract

A method for operating a combustion engine is disclosed. In an embodiment, the method includes: generating several sparks to ignite a fuel-air mixture in a combustion chamber by an ignition device of the combustion engine, determining a combustion duration of at least one of the sparks, detecting a deviation of an actual operation from a target operation of the combustion engine at least depending on the combustion duration, compensating for the deviation by implementing at least one measure which influences a combustion of the fuel-air mixture in the combustion chamber, determining the combustion duration of the chronological first of the sparks, allocating the first spark to a first spark type or to a second spark type depending on the combustion duration, and implementing the at least one measure if at least one value which characterizes a frequency of one of the spark types exceeds a threshold value.


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