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. 08, 1993
Filed:
May. 14, 1991
Masanori Sakamoto, Hamura, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A misfire diagnosis apparatus for an internal combustion engine is shown including initial acceleration judging unit, delay unit, and a misfire judging unit. The initial acceleration judging unit operates to judge the initial state of a starting acceleration or a gear shift acceleration on the basis of the detected result of acceleration detecting unit. Subsequently, the delay unit operates to stop a misfire judgement for a predetermined time period when the initial acceleration is judged. The misfire judging unit operates to start the misfire judgement operation after a lapse of a predetermined delay time period. Since the misfire judgement is stopped during the initial acceleration, erroneous diagnoses of misfirings are avoided.