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. 01, 2019
Filed:
May. 09, 2017
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Toshifumi Nakamura, Tokyo, JP;
Takahiko Inada, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P 11/02 (2006.01); F02P 17/02 (2006.01); F02P 17/00 (2006.01); F02P 17/12 (2006.01);
U.S. Cl.
CPC ...
F02P 17/02 (2013.01); F02P 17/00 (2013.01); F02P 2017/125 (2013.01);
Abstract
An internal-combustion-engine combustion state detecting apparatus is configured in such a way as to include a circulation unit that short-circuits a primary winding so as to form a circulation path including the primary winding, while a spark discharge is produced in an ignition plug, and a circulation current control unit that controls a circulation current flowing in the circulation path and in such a way that based on an ion current detected by an ion current detection apparatus, the combustion state of an inflammable fuel-air mixture is detected.