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:
May. 01, 2007
Filed:
Oct. 19, 2005
Tsuyoshi Arinaga, Kanagawa, JP;
Ryosuke Hiyoshi, Kanagawa, JP;
Shin Ishizaki, Kanagawa, JP;
Shinichi Takemura, Yokohama, JP;
Takanobu Sugiyama, Yokohama, JP;
Tsuyoshi Arinaga, Kanagawa, JP;
Ryosuke Hiyoshi, Kanagawa, JP;
Shin Ishizaki, Kanagawa, JP;
Shinichi Takemura, Yokohama, JP;
Takanobu Sugiyama, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
An intake control apparatus for an internal combustion engine includes a variable valve operating mechanism capable of varying a lift and operation angle of an intake valve continuously and a control unit that controls an intake air amount by varying the lift and operation angle of the intake valve in accordance with an operating condition of the engine. The control unit has a learning section that learns a controlled position of the variable valve operating mechanism at a learning position that is a predetermined lift and operation angle located between a minimum value and a maximum value of the lift and operation angle that can be actually realized by the variable valve operating mechanism.