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:
Mar. 15, 2016

Filed:

Mar. 30, 2010
Applicant:

Franz Dietl, Lappersdorf, DE;

Inventor:

Franz Dietl, Lappersdorf, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); F02D 41/00 (2006.01); F02D 41/12 (2006.01); F02D 41/14 (2006.01); F02N 11/10 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0097 (2013.01); F02D 41/123 (2013.01); F02D 41/1498 (2013.01); F02N 11/106 (2013.01);
Abstract

In a method and a device for operating an internal combustion engine, with at least one cylinder (Z-Z) having a combustion chamber (), fuel is injected into the cylinder and a logic value (LV_FCUT) is set, in particular for stopping the injection of fuel into the cylinder, The method furthermore has the following steps: depending on a course of the highly time-resolved measurement signal of a rotational speed (N_FAST) of the internal combustion engine, a local maximum value (N_FAST_MAX) of the rotational speed is determined, a rotational speed difference (N_FAST_DIF) between the local maximum value (N_FAST_MAX) and a current measured value (N_FAST_MES) of the rotational speed is determined, and, depending on the determined rotational speed difference (N_FAST_DIF), the logic value (LV_FCUT) is set.


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