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:
Dec. 25, 2018
Filed:
Sep. 22, 2017
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventor:
Hideki Hagari, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02P 9/00 (2006.01); F02P 5/145 (2006.01); F02P 17/12 (2006.01);
U.S. Cl.
CPC ...
F02P 9/002 (2013.01); F02P 5/145 (2013.01); F02P 2017/121 (2013.01);
Abstract
To provide a controller and a control method for an internal combustion engine capable of estimating a discharge plasma length accurately by easy method. Controller for internal combustion engine is provided with a secondary voltage detector that detects secondary voltage which is voltage generated by secondary coil, a secondary voltage minimum value calculator that calculates minimum value of secondary voltage during discharge period, and a discharge plasma length calculator that calculates length of the discharge plasma based on secondary voltage and minimum value of secondary voltage.