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. 29, 2007
Filed:
Feb. 15, 2005
Takahiro Yoshino, Yokosuka, JP;
Yuji Sasaki, Yokohama, JP;
Hatsuo Nagaishi, Zushi, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
An internal combustion engine () causes an air/fuel mixture in a cylinder to combust due to ignition by a spark plug (). The engine controller () calculates a crank angle at knock on the basis of an operating state of the engine () (), calculates a knock intensity on the basis of this crank angle at knock (), calculates a limit ignition timing at which knock is not generated, on the basis of the knock intensity (), and controls the ignition timing of the spark plug () to the limit ignition timing at which knock is not generated (). Therefore, suitable control of the ignition timing is achieved, by means of a small number of adaptation steps.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile