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:
Aug. 03, 2010

Filed:

Jan. 21, 2009
Applicants:

Johannes Ullrich, Russelsheim, DE;

Roland Steininger, Russelsheim, DE;

Jurgen Grimm, Russelsheim, DE;

Stefan Lang, Russelsheim, DE;

Julian Kuric, Russelsheim, DE;

Viktor Boschmann, Russelsheim, DE;

Daniela Bollmann, Russelsheim, DE;

Inventors:

Johannes Ullrich, Russelsheim, DE;

Roland Steininger, Russelsheim, DE;

Jurgen Grimm, Russelsheim, DE;

Stefan Lang, Russelsheim, DE;

Julian Kuric, Russelsheim, DE;

Viktor Boschmann, Russelsheim, DE;

Daniela Bollmann, Russelsheim, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 3/10 (2006.01); F02D 41/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

Method for dosing fuel injected into an engine, with a fuel quantity for an injector, the fuel quantity being divided into pilot and main injections for respective activation duration having activation duration corrective value, the method may include storing correlation data between fuel injection quantity and activation time under at least a state parameter of the injector, wherein the fuel injection quantity includes reference total injection quantities determined for predetermined operating states of the engine, determining a present operating state of the engine, placing the engine into one of the predetermined operating states, determining a present total injection quantity and a reference total injection quantity in one of the at least a state parameter of the injector, and defining the respective activation duration corrective value for the pilot and main injection considering a difference between the reference total injection quantity and the present total injection quantity.


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