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:
Mar. 22, 2022
Filed:
Feb. 05, 2021
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Min Jae Kim, Seoul, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
KIA MOTORS CORPORATION, Seoul, KR;
Abstract
A method for controlling an exhaust aftertreatment system for vehicles includes: determining, by a controller, whether or not a designated regeneration operation is finished; accumulating, by the controller, a first amount of NOemission measured by a rear end NOsensor of an selective catalytic reduction (SCR) apparatus and a second amount of NOemission calculated by an NOemission amount model respectively for a first reference period of time immediately after the regeneration operation is finished; determining, by the controller, whether or not a difference between an accumulated value of the first amount of NOemission and an accumulated value of the second amount of NOemission exceeds a reference value when the first reference period of time has elapsed; and correcting, by the controller, a model purification efficiency using a sensor purification efficiency when the difference between the accumulated values exceeds the reference value.