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:
Jul. 08, 2014
Filed:
Oct. 18, 2011
Simon Petrovic, Aachen, DE;
Yasser Mohamed Sayed Yacoub, Cologne, DE;
Simon Petrovic, Aachen, DE;
Yasser Mohamed sayed Yacoub, Cologne, DE;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for monitoring a regulated emissions concentration C, in the exhaust gas of an internal combustion engine is provided. The method comprises directing the exhaust gas through an exhaust-gas turbocharger, directing at least a portion of the exhaust gas through an exhaust-gas recirculation system, measuring an air ratio λin the exhaust gas with a lambda probe, measuring a rotational speed nof the exhaust-gas turbocharger with a sensor, and determining the regulated emission concentration Cbased on the air ratio λand the rotational speed n. In this way, the emission concentration of the exhaust may be determined as a function of the rotational speed of the turbine.