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:
Dec. 20, 2016
Filed:
Dec. 13, 2014
Hyundai Motor Company, Seoul, KR;
Sung Mu Choi, Gyeonggi-Do, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
A system and method for controlling an exhaust after-treatment apparatus for vehicle are provided. The method includes detecting, by a controller, signals from a front lambda sensor and a rear lambda sensor of a Lean NOx Trap (LNT), when an engine is driven in a rich mode and acquiring, by the controller, a temperature of exhaust gas detected by a temperature sensor, when the engine is driven in a rich mode. Further the method includes comparing, by the controller, the signals from the front lambda sensor and the rear lambda sensor to detect a breakthrough time when a breakthrough occurs between the signals from the front lambda sensor and the rear lambda sensor. In addition, the controller is configured to determine an additional rich time period based on the breakthrough time and the temperature of exhaust gas.