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. 21, 2017
Filed:
Jan. 21, 2014
Applicant:
Audi Ag, Ingolstadt, DE;
Inventor:
Reza Azadeh, Regensburg, DE;
Assignee:
AUDI AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 75/04 (2006.01); F02D 15/00 (2006.01); F02D 41/04 (2006.01); F02D 41/14 (2006.01);
U.S. Cl.
CPC ...
F02D 15/00 (2013.01); F02D 41/04 (2013.01); F02D 2041/1412 (2013.01); F02D 2200/1002 (2013.01); F02D 2200/1004 (2013.01); F02D 2700/03 (2013.01);
Abstract
In a method for operating an internal combustion engine a compression ratio is set to a setpoint compression ratio by means of an adjustment device, wherein in a normal operating mode of the internal combustion engine the setpoint compression ratio is determined as a function of an, operating variable of the internal combustion engine. The internal combustion engine is at least temporarily operated in a predictive operating mode in which the setpoint compression ratio is determined on the basis of an anticipated estimated operating variable which is estimated on the basis of the instantaneous gradient of the operating variable over time.