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:
May. 17, 2016
Filed:
Dec. 22, 2010
Applicant:
Theophil Auckenthaler, St. Gallen, CH;
Inventor:
Theophil Auckenthaler, St. Gallen, CH;
Assignee:
FPT MOTORENFORSCHUNG AG, Arbon, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/419 (2006.01); G01N 27/406 (2006.01);
U.S. Cl.
CPC ...
G01N 27/419 (2013.01); G01N 27/4065 (2013.01);
Abstract
It is described a method for controlling an oxygen pump cell of a sensor in an internal combustion engine or in the exhaust gas after treatment system of such an engine, comprising the step of adding, to a feedback control of the current in the pump cell, a further feed-forward control path estimating an expected oxygen pump current on the basis of characteristics of the exhaust gas composition calculated from engine operation data.