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:
Feb. 23, 2021
Filed:
Nov. 28, 2018
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Choo Saeng Choi, Seongnam-si, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
KIA MOTORS CORPORATION, Seoul, KR;
Abstract
An active canister purge system may include: a canister trapping a fuel vapor generated in a fuel tank; a purge control valve allowing the trapped fuel vapor to be purged from the canister into an intake pipe; a purge pump forcefully pumping the fuel vapor trapped in the canister into the intake pipe; a pressure sensor detecting a pressure at an inlet of the purge control valve; and a controller determining whether the pressure at the inlet of the purge control valve is varied on the basis of a pressure variation in the intake pipe in a non-purging condition to diagnose an open stuck state of the purge control valve.