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:
Sep. 26, 2006
Filed:
Sep. 03, 2002
Tametoshi Mizuta, Susono, JP;
Isao Matsumoto, Susono, JP;
Kazuhiko Shiratani, Susono, JP;
Shoji Katsumata, Gotemba, JP;
Keiji Yoeda, Numazu, JP;
Makoto Ogiso, Mishima, JP;
Hideyuki Nishida, Suntou-gun, JP;
Tametoshi Mizuta, Susono, JP;
Isao Matsumoto, Susono, JP;
Kazuhiko Shiratani, Susono, JP;
Shoji Katsumata, Gotemba, JP;
Keiji Yoeda, Numazu, JP;
Makoto Ogiso, Mishima, JP;
Hideyuki Nishida, Suntou-gun, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A method of operating an internal combustion engine having an; electromagnetically driven intake valves for a vehicle. With the method, deviation of an opening operation of the electromagnetically driven intake valve in response to a command signal for opening the intake valve from a predetermined characteristic is detected, and at least one of parameters used for controlling operation of the internal combustion engine is corrected so as to reduce a change in an intake air charging state in which the internal combustion engine is charge with the intake air. A valve closing timing of the intake valve or a valve closing timing of the exhaust valve that cooperates with the intake valve may be used as parameters to be corrected.