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:
Jul. 30, 1991
Filed:
May. 04, 1990
Hiroya Ohkumo, Musashino, JP;
Shuji Miyama, Musashimurayama, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An ignition timing controlling system is provided for calculating an ignition timing based on a basic ignition timing, a learning correcting quantity including a large correcting quantity and a small correcting quantity. A temporary correcting quantity having a small value is stored in a memory at starting of the engine, and increased in an advance direction until knocking of the engine occurs. The increased temporary correcting quantity is compared with the large correcting quantity and either of the quantities is selected as a proper correcting quantity. An ignition timing is calculated based on the selected quantity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile