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:
Nov. 30, 2021
Filed:
Oct. 23, 2020
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Il Suk Yang, Hwaseong-si, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
KIA MOTORS CORPORATION, Seoul, KR;
Abstract
A method of controlling a vehicle engine system is proposed. In the method, a controller selectively enables: an exhaust heat recovery mode where, with a bypass valve, exhaust gas bypassing an EGR cooler is prevented from joining and an EGR valve is closed; an EGR mode where, with the bypass valve, surplus exhaust gas, flowing through the EGR cooler is prevented from joining and the degree of opening of the EGR valve is adjusted; a complex mode where, with the bypass valve, a ratio between amounts of the surplus exhaust gas flowing through the EGR cooler and the exhaust gas bypassing the EGR cooler is adjusted and the degree of opening of the EGR valve is adjusted; and a high output mode where, with the bypass valve, the surplus exhaust gas flowing through the EGR cooler is prevented from joining to be discharged and the EGR valve is closed.