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. 09, 2009
Filed:
Jul. 11, 2005
Applicant:
Uwe Kassner, Moeglingen, DE;
Inventor:
Uwe Kassner, Moeglingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for correcting a measured cylinder pressure of an internal combustion engine, in which a cylinder pressure sensor is connected to a combustion chamber via a duct, disturbing portions resulting from whistle oscillations being suppressed by determining an oscillation frequency of a gas oscillation caused in the duct during a power stroke and filtering the measurement values of the cylinder pressure sensor using a band-stop filter having the previously determined oscillation frequency.