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:
Oct. 13, 2015
Filed:
Jan. 17, 2013
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Junnosuke Andou, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD, Tokyo, JP;
Abstract
In a control deviceA, an actual compression ratio calculation unitcalculates an actual compression ratio ε from an air supply pressure Ps, a cylinder pressure before ignition Pc and an air supply temperature Ts. A deposit deposition estimation unitdetermines the deposit deposition state of a combustion chamberfrom a deviation Δε between the actual compression ratio ε and a design compression ratio ε'. When the deviation Δε exceeds a threshold value, ignition timing or air-fuel ratio being operation conditions of an internal combustion engine is corrected based on a correction mapso as to suppress deterioration of exhaust gas.