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. 13, 2018
Filed:
Jun. 25, 2015
Applicant:
Fpt Motorenforschung Ag, Arbon, CH;
Inventor:
Thomas Eckhardt, Romanshorn, CH;
Assignee:
FPT MOTORENFORSCHUNG AG, Arbon, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); G01M 15/09 (2006.01); F02M 35/08 (2006.01); B01D 46/44 (2006.01); F02M 35/09 (2006.01); F02M 35/024 (2006.01); F02M 35/10 (2006.01);
U.S. Cl.
CPC ...
G01M 15/09 (2013.01); B01D 46/0086 (2013.01); B01D 46/446 (2013.01); F02M 35/024 (2013.01); F02M 35/08 (2013.01); F02M 35/09 (2013.01); F02M 35/10373 (2013.01);
Abstract
Method for detecting an air filter condition, in particular for combustion engines, comprising the following steps: calculation of a linear regression over data-couples values, each comprising pressure drop value at the air filter and square of air flow value crossing the air filter, corresponding to said pressure drop value, in order to obtain an angular coefficient of the linear regression, comparison of the angular coefficient or of the function construed on the angular coefficient with at least one threshold in order to detect an operative condition of the air filter (FIG.).