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:
Aug. 28, 2012
Filed:
Jul. 30, 2009
Kang Won Lee, Seongnam, KR;
Jungwhun Kang, Yongin, KR;
Kang Won Lee, Seongnam, KR;
Jungwhun Kang, Yongin, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
A system for and process of is provided for calculating SCR conversion efficiency by applying a reference control signal by which a urea dosing module is controlled to an NOx conversion value respectively in absorption and release modes of NH3 according to a loading amount of the NH3 determined from the SCR efficiency map. The system and process may include a process of determining the NOx conversion value according to a loading amount of NH3, a process of detecting the reference control signal of the dosing module injecting the urea solution, and a process of calculating the SCR conversion efficiency based on the determined NOx conversion value and reference control signal of the dosing module.