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. 23, 2008
Filed:
Jul. 22, 2005
Tsuyoshi Arinaga, Kanagawa, JP;
Takanobu Sugiyama, Yokohama, JP;
Shin Ishizaki, Kanagawa, JP;
Ryosuke Hiyoshi, Kanagawa, JP;
Shinichi Takemura, Yokohama, JP;
Shunichi Aoyama, Kanagawa, JP;
Tsuyoshi Arinaga, Kanagawa, JP;
Takanobu Sugiyama, Yokohama, JP;
Shin Ishizaki, Kanagawa, JP;
Ryosuke Hiyoshi, Kanagawa, JP;
Shinichi Takemura, Yokohama, JP;
Shunichi Aoyama, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
There is provided a system for controlling an intake valve of an internal combustion engine, including a variable valve mechanism having a control shaft to continuously vary a valve lift amount of the intake valve according to a rotational angle of the control shaft and an actuator to drive the control shaft, and a control unit that controls the actuator so as to set the control shaft to a first rotational angle position at which the valve lift amount takes a first value during an engine idling period and to a second rotational angle position at which the valve lift amount takes on a second value larger than the first value to provide a required intake quantity to start the engine during a time from the beginning of an engine speed decrease period, through an engine stop period, until the completion of a cranking period of the engine.