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. 13, 2011
Filed:
Dec. 05, 2008
Kengo Kumano, Hitachi, JP;
Shiro Yamaoka, Hitachi, JP;
Hiromu Kakuya, Hitachinaka, JP;
Yoshihiro Sukegawa, Hitachi, JP;
Kengo Kumano, Hitachi, JP;
Shiro Yamaoka, Hitachi, JP;
Hiromu Kakuya, Hitachinaka, JP;
Yoshihiro Sukegawa, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Disclosed herein is a control apparatus for a spark-ignition engine that is capable of avoiding knocking at the time of high-load operation. With this control apparatus, a residual-gas suction unit or the like is not used, an exhaust gas does not deteriorate due to injection in a compression stroke, and a thermal efficiency also does not decrease. An engine control apparatus (ECU)is used for the control of a direct-injection type spark-ignition engine. During the high-load operation of the spark-ignition engine, the ECUinjects fuel a plurality of times. In addition, the ECU performs first fuel injection toward internal EGR that exists in a combustion chamber of the spark-ignition engine.