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:
Aug. 29, 2006
Filed:
Oct. 21, 2004
Fumihiko Sato, Susono, JP;
Fumihiko Sato, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A misfire detector for an internal combustion engine sets an operating state of the internal combustion engine as a parameter and detects misfire based on the parameter. The misfire detector includes a friction-torque estimating unit and a misfire determining unit. The friction-torque estimating unit estimates indicated torque and inertial torque of the internal combustion engine when the load of the internal combustion engine is stable, obtains a difference between the indicated torque and the inertial torque, and estimates friction torque of the internal combustion engine using the difference. The misfire determining unit determines misfire by correcting the parameter using the friction torque estimated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile