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:
Oct. 21, 2003
Filed:
Sep. 28, 2000
Hidetoshi Amano, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A misfire detecting apparatus for an internal combustion engine has a start determinator, a rotation counter, a misfire detector, a misfire calculator, a setting means, an abnormality determinator, and a warning means. The start determinator determines a starting condition of the internal combustion engine. The rotation counter counts a total number of rotations of the internal combustion engine. The misfire detector detects a misfire of the internal combustion engine. The misfire calculator calculates a rate of misfire using data from the misfire detector, and the rate of misfire is the number of misfires per a predetermined total number of rotations. The setting means sets a basic rate of misfire in response to the start condition of the internal combustion engine. The abnormality determinator determines an abnormal condition of the internal combustion engine when the rate of misfire calculated by the misfire calculator is greater than the basic rate of misfire set by the setting means. The warning means warns of an abnormality of the internal combustion engine when the abnormality determinator determines an abnormal condition of the internal combustion engine. The detection whether the internal combustion engine is abnormal or not can be accurate by this misfire detecting apparatus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile