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:
Mar. 22, 2016
Filed:
Mar. 07, 2014
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Yoshikuni Kurashima, Isesaki, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
The present invention relates to a control device and a control method for an engine that includes a compression ratio variable mechanism for changing a top dead center position of a piston and a fuel injector for directly injecting a fuel into a cylinder. In the control device and the control method for the engine according to the invention, when a compression ratio is increased by the compression ratio variable mechanism, an injection timing, a fuel pressure, the number of times of split injections, and the like, in a fuel injection of the fuel injector are changed, to reduce a fuel adhering to a piston crown surface.