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. 23, 2007
Filed:
Sep. 07, 2004
Takanobu Sugiyama, Yokohama, JP;
Shinichi Takemura, Yokohama, JP;
Toru Noda, Yokohama, JP;
Ryosuke Hiyoshi, Kanagawa, JP;
Shunichi Aoyama, Kanagawa, JP;
Takanobu Sugiyama, Yokohama, JP;
Shinichi Takemura, Yokohama, JP;
Toru Noda, Yokohama, JP;
Ryosuke Hiyoshi, Kanagawa, JP;
Shunichi Aoyama, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A control apparatus for an internal combustion engine includes a variable compression ratio mechanism capable of varying a compression ratio of the engine, a compression ratio setting section that sets a compression ratio to be attained by the variable compression ratio mechanism in accordance with an operating condition of the engine, a knock detecting section that detects a knock occurrence state, an ignition timing learning correcting section that determines a learning correction value of an ignition timing in accordance with the knock occurrence sate, and a compression ratio correcting section that corrects the compression ratio set by the compression ratio setting section in accordance with the learning correction value of the ignition timing. A control method is also provided.