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:
Jun. 23, 2009
Filed:
Apr. 22, 2008
Takaaki Bamba, Shizuoka, JP;
Takaaki Bamba, Shizuoka, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Abstract
In a fuel supply amount control system, during a period of engine startup from the time when a crankshaft starts to rotate by a starter motor to the time when the crankshaft stably rotates by fuel combustion, a fuel supply amount is controlled independently before and after a cylinder stroke determination. This enables determination of the fuel supply amount independently before and after the cylinder stroke determination. Accordingly, the required fuel amounts are provided respectively before and after the cylinder stroke determination. As a result, even if the required fuel amounts are different before and after the cylinder stroke determination, engine startup can be achieved in a short time.