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:
Jun. 07, 2005
Filed:
Aug. 07, 2003
Applicants:
Yuichi Goto, Toyota, JP;
Kazuhiro Iwahashi, Okazaki, JP;
Takayuki Demura, Mishima, JP;
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B003/00 ;
U.S. Cl.
CPC ...
Abstract
In air-fuel ratio feedback control, a rich skip amount is made larger than a lean skip amount by an offset amount OS such that a feedback control center is offset to the rich side. As a result, the amount of error from an erroneous detection by an Osensor is absorbed and deterioration of gas emissions in a multiple-injection mode is minimized.
Goto, Yuichi. (2005). Apparatus and method for controlling air-fuel ratio in direct-injection internal combustion engine (U.S. Patent No. 6901906). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6901906
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile