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. 22, 2014
Filed:
Jun. 28, 2012
Robert Ukropec, Aachen, DE;
Alexey A. Dubkov, Aachen, DE;
Yasser Mohamed Sayed Yacoub, Cologne, DE;
Brendan Patrick Carberry, Aachen, DE;
Nina Shishkina, Krasnoyarsk, RU;
Robert Ukropec, Aachen, DE;
Alexey A. Dubkov, Aachen, DE;
Yasser Mohamed Sayed Yacoub, Cologne, DE;
Albert N. Chigapov, Krasnoyarsk, RU;
Brendan Patrick Carberry, Aachen, DE;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Systems and methods for estimating an efficiency of a catalyst placed in an exhaust path of a combustion engine are disclosed. In one example approach, a method comprises: ageing the catalyst consecutively at different temperatures for definite time periods; measuring the catalyst conversion efficiency after each ageing step; calculating the ageing factor for each step of the ageing procedure and the accumulative value of the ageing factors for all steps of the ageing procedure; estimating catalyst efficiency correlation factors related to the measured catalyst conversion efficiency for each temperature point and for all ageing conditions; determining a correlation between the catalyst efficiency correlation factors and the accumulative value of the ageing factors; and calculating the conversion efficiency of the aged catalyst based on a predetermined correlation between the accumulative ageing factor and the catalyst efficiency correlation factor.