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:
Sep. 20, 1994
Filed:
Dec. 11, 1992
Masaki Kanehiro, Wako, JP;
Yuichi Shimasaki, Wako, JP;
Takuji Ishioka, Wako, JP;
Shigeki Baba, Wako, JP;
Takashi Hisaki, Wako, JP;
Shigeru Maruyama, Wako, JP;
Masataka Chikamatsu, Wako, JP;
Shukoh Terata, Wako, JP;
Kenichi Maeda, Wako, JP;
Kazuhito Kakimoto, Wako, JP;
Honda Giken Kogyo Kabushiki Kaishi, Tokyo, JP;
Abstract
A misfire-detecting system detects a misfire occurring in an internal combustion engine. A value of sparking voltage for discharging a spark plug of the engine is detected. A differentiating circuit differentiates the detected value of the sparking voltage. A misfire-determining circuit compares the differential value of the sparking voltage with a predetermined value, and determines, based upon a result of the comparison, whether a misfire has occurred in the engine.