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:
Dec. 02, 2003
Filed:
Jun. 27, 2001
Applicant:
Inventors:
Peter Hohner, Leinfelden-Echterdingen, DE;
Klaus Knolmayer, Schwabach, DE;
Joerg Miroll, Koengen, DE;
Linhard Niemetz, Rednitzhembach, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 2/322 ;
U.S. Cl.
CPC ...
G01L 2/322 ;
Abstract
In a method for detecting knocking combustion during the operation of an internal combustion engine with a device for measuring the ionic current, the raw ionic current signal or the evaluated value of the knocking intensity are normalized. This enables the value of the knocking intensity to be reliably compared with a threshold value. The normalization avoids the falsifying influence of large intensity fluctuations of the raw ionic current signal from one combustion cycle to the next without any relation to the true knocking intensity.