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. 24, 2006
Filed:
Feb. 01, 2005
Michihisa Nakamura, Iwata, JP;
Michihisa Nakamura, Iwata, JP;
Yamaha Motor Company Ltd., , JP;
Abstract
An engine control device is provided to reliably detect an abnormality in crank pulses. The device determines that there is an abnormality in crank pulses when the situation, in which a standard pitch crank pulse counter T does not reach a prescribed value Tbetween irregular pitch crank pulses (interval abnormality), repeatedly occurs at least a prescribed value CNTtimes, when an irregular pitch is not detected for a prescribed period of time for the crank pulse counter T to count up to Tor longer, or when the situation, in which a prescribed number or more of clank pulses are not detected for a prescribed period of time, repeatedly occurs at least a count-up value Kof times.