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:
Mar. 06, 2007
Filed:
Oct. 11, 2005
Tomoyuki Takeda, Yokohoma, JP;
Masayuki Tomita, Kanagawa, JP;
Taro Sakai, Kawasaki, JP;
Akira Nakajima, Yokohama, JP;
Takao Maitani, Kanagawa, JP;
Tomoyuki Takeda, Yokohoma, JP;
Masayuki Tomita, Kanagawa, JP;
Taro Sakai, Kawasaki, JP;
Akira Nakajima, Yokohama, JP;
Takao Maitani, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
There is provided a combustion control system for a direct-injection spark-ignition internal combustion engine, including a fuel injection valve that injects fuel directly into a cylinder of the engine to form an air-fuel mixture in a combustion chamber of the engine cylinder, a spark plug that ignites the air-fuel mixture, and a control unit that performs combustion retard control to set an ignition timing of the spark plug at a point after compression top dead center and set an injection period of the fuel injection valve at a time after compression top dead center and before the ignition timing in such a manner that a time interval from a start point of the injection period to the ignition timing increases with decrease in a temperature in the engine cylinder at a cold start of the engine.