CONTROL DEVICE FOR SPARK-IGNITION-TYPE INTERNAL-COMBUSTION ENGINE

Title:

CONTROL DEVICE FOR SPARK-IGNITION-TYPE INTERNAL-COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2013/065659

Kind Code:

A1

Abstract:

The present invention mitigates or eliminates the problem of uncombusted fuel being exhausted outside of a cylinder in cases when combustion of the air-fuel mixture in a combustion chamber has been inadequate. High voltage is applied to a spark plug via a spark coil, igniting the air-fuel mixture in the combustion chamber with a spark discharge generated by the spark plug. When a worsening of combustion conditions is detected during the expansion stage caused by combustion, a microwave electric field is generated in the combustion chamber during the final period of the expansion stage before the exhaust valve opening timing, causing plasma to be generated and grow in the combustion chamber.

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Inventors:

UCHIDA KATSUMI (JP)
SHIMA YUTA (JP)
OI HIROAKI (JP)
NAKAJIMA AKIRA (JP)
SERIZAWA TAKESHI (JP)
IKEDA YUJI (JP)

Application Number:

PCT/JP2012/077952

Publication Date:

May 10, 2013

Filing Date:

October 30, 2012

Export Citation:

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Assignee:

DAIHATSU MOTOR CO LTD (JP)
IMAGINEERING INC (JP)

International Classes:

F02P23/04; F02P3/01; F02P17/12

Foreign References:

JP2009281188A	2009-12-03
JP2000265934A	2000-09-26
JP2011132900A	2011-07-07
JP2009036068A	2009-02-19
JP2010101173A	2010-05-06
JP2011159477A	2011-08-18
JP2011064162A	2011-03-31

Other References: