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:
Feb. 22, 2011
Filed:
Mar. 20, 2007
Applicants:
Gerhard Eser, Hemau, DE;
Bernhard Klingseis, Neutraubling, DE;
Gerhard Schopp, Pettendorf, DE;
Inventors:
Assignee:
Continental Automotive GmbH, Hannover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to the operation of an internal combustion engine, a first model value or a second model value of the exhaust gas counter pressure is determined upstream of the exhaust gas catalytic converter of the internal combustion engine as a function of at least one operating variable of the internal combustion engine, which is representative of the exhaust gas counter pressure in a current operating mode of the internal combustion engine, assuming a low valve lift or a high valve lift.