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:
May. 03, 1994
Filed:
Feb. 28, 1992
Yoshiaki Akase, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In a method of detecting misfires in a gasoline internal combustion engine, the angular velocities of rotation of the engine detected by an angular velocity sensor are calculated over a period of time, and when the difference between the average value of the angular velocities of rotation and the maximum or minimum value thereof is equal to or larger than a predetermined threshold value, the occurrence of misfires is determined. The threshold value is changed according to the operating conditions of the engine such as engine speed or load. Thus, in the method, most suitable, threshold values are set over wide ranges spanning from low speed to high speed, and from light load to heavy load. The abnormal rotation of the engine due to misfires can thereby be with high accuracy.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile