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:
Oct. 08, 2019
Filed:
Mar. 06, 2018
Honda Motor Co., Ltd., Tokyo, JP;
Masaki Ueno, Saitama, JP;
Noritaka Kimura, Saitama, JP;
Kosuke Ihara, Saitama, JP;
Yuto Katori, Saitama, JP;
Hajime Uto, Saitama, JP;
Yosuke Yamada, Saitama, JP;
Masashi Hidaka, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
In a control device of an internal-combustion engine according to the disclosure, an intake throttle valve () for adjusting an EGR valve differential pressure (ΔPEGR) is provided, an EGR valve upstream pressure (PEGR) is estimated by using a target fresh air amount (GAIRCMD) (step), a target differential pressure (ΔPEGRCMD) is set to a smaller value as the target fresh air amount (GAIRCMD) becomes smaller (FIG.), and a difference between the EGR valve upstream pressure (PEGR) and the target differential pressure (ΔPEGRCMD) is set as a target valve downstream pressure (PCMD) (step). By using the target fresh air amount (GAIRCMD), the EGR valve upstream pressure (PEGR), and the target valve downstream pressure (PCMD), the target EGR valve opening degree (LEGRCMD) is set (step), and an EGR valve () is controlled based on the target EGR valve opening degree (step).