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:
Jan. 21, 2014
Filed:
Apr. 12, 2012
Hideki Hagari, Chiyoda-ku, JP;
Tomokazu Makino, Chiyoda-ku, JP;
Keitaro Ezumi, Aki-gun, JP;
Tomokuni Kusunoki, Aki-gun, JP;
Hideki Hagari, Chiyoda-ku, JP;
Tomokazu Makino, Chiyoda-ku, JP;
Keitaro Ezumi, Aki-gun, JP;
Tomokuni Kusunoki, Aki-gun, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A control device of an internal combustion engine includes a filter processing portion which performs a filter processing on the vibration level extracted by the vibration level extraction portion, and calculates a vibration level after the filter processing; and an abnormal ignition suppression control portion which compares the vibration level after the filter processing to the abnormal ignition determination value when a retard correction equal to or greater than a predetermined value is performed by the knock control portion, in a case where it is determined that the vibration level after the filter processing is equal to or greater than the abnormal ignition determination value, determines that the abnormal ignition is generated in the internal combustion engine, corrects and controls the combustion control portion in a direction of suppressing the abnormal ignition.