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:
Jan. 30, 2007
Filed:
Mar. 08, 2005
Shinichi Takemura, Yokohama, JP;
Takanobu Sugiyama, Yokohama, JP;
Shin Ishizaki, Kanagawa, JP;
Ryosuke Hiyoshi, Kanagawa, JP;
Tsuyoshi Arinaga, Kanagawa, JP;
Shinichi Takemura, Yokohama, JP;
Takanobu Sugiyama, Yokohama, JP;
Shin Ishizaki, Kanagawa, JP;
Ryosuke Hiyoshi, Kanagawa, JP;
Tsuyoshi Arinaga, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
An intake valve control apparatus for an internal combustion engine includes a first variable valve operating mechanism capable of varying an operation angle of an intake valve continuously, a second variable valve operating mechanism capable of varying a maximum lift phase of the intake valve continuously, and a controller that controls an intake air amount mainly by varying the operation angle and the maximum lift phase of the intake valve. The controller is configured to, when one of the first and second variable valve operating mechanisms is at a phase position different from a predetermined start stage phase position at engine start, correct a phase position of the other of the first and second variable valve operating mechanisms in accordance with a present phase position of the one of the first and second variable valve operating mechanisms. An intake valve control method is also provided.