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:
Nov. 01, 2016
Filed:
Mar. 04, 2013
Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;
Tetsuya Honda, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Provided are a controller and a control method for a homogeneous charge compression ignition engine, which are capable of obtaining a highly efficient and stable combustion state over a wide range of load condition. A correction factor computing section executes combustion control with an excess air ratio smaller than approximately 3 when a predetermined condition is satisfied and computes a correction factor for correcting deviations between execution values of valve-opening timings and valve-opening periods of an intake valve and an exhaust valve and basic valve-opening timings and basic valve-opening periods of the intake valve and the exhaust valve which are previously determined for each operation condition, based on a timing at which an ion current becomes maximum detected by a combustion-timing detection section, in the combustion control with the excess air ratio smaller than approximately 3.