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. 15, 2015
Filed:
Feb. 08, 2011
Kazuya Mikashima, Toyota, JP;
Tomoyuki Noguchi, Nissin, JP;
Kazuya Mikashima, Toyota, JP;
Tomoyuki Noguchi, Nissin, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;
Abstract
Provided is a control apparatus of the internal combustion engine capable of removing deposited foreign matters accumulated on an EGR valve without deteriorating a combustion state of the internal combustion engine. When the vehicle is under deceleration and under fuel cut operation, the ECU opens an EGR shutoff valve and obtains an intake pressure 'Pclose' under the EGR valve in the fully closed state. Then, the ECU opens the EGR valve and obtains an intake pressure 'Popen' under the EGR valve in the fully opened state. Then, the ECU calculates a difference ΔP between “Popen” and “Pclose”, and closes the EGR shutoff valve on the condition that the difference ΔP is equal to or smaller than a threshold value “Pth1”. Then, the ECU opens the EGR valve, and subsequently opens the EGR valve.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile