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:
Jun. 23, 2020
Filed:
Jul. 07, 2016
Applicant:
Mtu Friedrichshafen Gmbh, Friedrichshafen, DE;
Inventors:
Assignee:
MTU FRIEDRICHSHAFEN GMBH, Friedrichshafen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/14 (2006.01); F02D 41/18 (2006.01); F02D 41/24 (2006.01); F02D 13/02 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/1439 (2013.01); F02D 13/0223 (2013.01); F02D 41/1486 (2013.01); F02D 41/18 (2013.01); F02D 41/2451 (2013.01); F02D 41/0007 (2013.01); F02D 41/0027 (2013.01); F02D 2041/001 (2013.01); F02D 2200/0411 (2013.01); Y02T 10/18 (2013.01);
Abstract
A method for compensating valve drift in an internal combustion engine having a variable valve train; in the method, an actual value of the current operating state of the internal combustion engine is determined in an air expenditure map and compared to a desired value of the air expenditure map, whereupon the air expenditure map is corrected.