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:
Nov. 02, 2010
Filed:
Jul. 20, 2005
Dietmar Ellmer, Regensburg, DE;
Rüdiger Herweg, Esslingen, DE;
Thorsten Lauer, Holzheim a. Forst, DE;
Michael Mladek, Karlsruhe, DE;
Mayk Stelter, Stuttgart, DE;
Dietmar Ellmer, Regensburg, DE;
Rüdiger Herweg, Esslingen, DE;
Thorsten Lauer, Holzheim a. Forst, DE;
Michael Mladek, Karlsruhe, DE;
Mayk Stelter, Stuttgart, DE;
Continental Automotive GmbH, Hannover, DE;
Abstract
The invention is directed toward a device for controlling an internal combustion engine. An aspect of the invention is determining a polytropic exponent according to at least two measured values of the pressure in a combustion chamber of a cylinder of an internal combustion engine during the working stroke of the cylinder once an air/fuel mixture of a cylinder has been burned and before the gas discharge valve is opened. A first exhaust gas temperature is determined and a second temperature of the exhaust gas is determined in accordance with the first exhaust gas temperature. The pressure associated in the combustion chamber, the pressure prevailing in the combustion chamber after closing the gas discharge valve, and the polytropic exponent are determined. An actuation signal for controlling an actuating member of the internal combustion engine is generated according to the second temperature of the exhaust gas.