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. 12, 2013
Filed:
Dec. 29, 2008
Toshiyuki Miyata, Okazaki, JP;
Katsunori Ueda, Okazaki, JP;
Koji Kawakita, Ohbu, JP;
Fuminobu Hongoh, Okazaki, JP;
Tadashi Ujihara, Okazaki, JP;
Toshiyuki Miyata, Okazaki, JP;
Katsunori Ueda, Okazaki, JP;
Koji Kawakita, Ohbu, JP;
Fuminobu Hongoh, Okazaki, JP;
Tadashi Ujihara, Okazaki, JP;
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A controller of an internal combustion engine operable by an alcohol-containing fuel, includes: an alcohol concentration detecting unit, operable to detect an alcohol concentration of the alcohol-containing fuel; a feedback controller, operable to perform feedback control to make an exhaust air-fuel ratio of the internal combustion engine become equal to a target air-fuel ratio in accordance with an operation region; and an operation region setting unit, operable to set a stoichiometric operation region, in which the target air-fuel ratio is stoichiometric, in an enlarged manner when the alcohol concentration, detected by the alcohol concentration detecting unit, is higher than a concentration.