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:
Feb. 22, 1994
Filed:
Jul. 16, 1992
Kouichi Osawa, Susono, JP;
Hideki Morishima, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
The device for determining a misfiring of a cylinder of a multicylinder engine determines that a misfire has occurred when a change in the angular velocity of the crank shaft detected by a crank angle sensor mounted to the engine body becomes larger than a predetermined set value, and to prevent a misjudgement caused by engine vibration, the device changes the mode of operation for determining the misfire when the engine is operated in a region in which the engine vibration is increased, i.e., in this operating region, the determination of the misfire is not carried out, or the above predetermined set value for the change in angular velocity is increased.