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. 22, 2017
Filed:
Nov. 19, 2015
Hyundai Motor Company, Seoul, KR;
HwaYong Jang, Hwaseong-si, KR;
Mooseock Seo, Suwon-si, KR;
Shin Geol Kim, Hwaseong-si, KR;
Jeong Sik Jin, Ansan-si, KR;
Jinseung Yoo, Seoul, KR;
Seongmin Park, Gunpo-si, KR;
Sung Il You, Gwacheon-si, KR;
Ki Hong Kang, Gwangmyeong-si, KR;
SeungWoo Seo, Seoul, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
Abstract
A removing poison apparatus of a lambda sensor includes: a lambda sensor detecting an oxygen concentration included in an exhaust gas; and a control unit differentiating a heating temperature and a heating time to remove poison of the lambda sensor depending on a lambda signal output from the lambda sensor in an overrun condition of the engine. By heating the lambda sensor depending on the magnitude of the lambda signal output from the lambda sensor, the lambda sensor may be inhibited from being degraded by combusting the material poisoned to the electrode of the lambda sensor and the failure of the lambda sensor may be correctly determined.