CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Title:

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2014/020982

Kind Code:

A1

Abstract:

In a non-EGR region, which is a low-load operating region, an EGR control valve (21) is opened with a specific, extremely small degree of opening M, which corresponds to an extremely small EGR rate that does not affect the ignition timing. Thus, the interior of an EGR passage (20) essentially becomes filled with EGR gas, so when the EGR control valve (21) is opened and the operating state changes from the non-EGR region to the EGR region so as to achieve the target EGR rate, the desired amount of EGR gas is introduced into an intake passage (2) at virtually the same time as the opening of the EGR control valve (21), and the actual EGR rate can be made to conform to the target EGR rate with good responsiveness.

Inventors:

TAKAKI DAISUKE (JP)

Application Number:

PCT/JP2013/065234

Publication Date:

February 06, 2014

Filing Date:

May 31, 2013

Export Citation:

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Assignee:

NISSAN MOTOR (JP)

International Classes:

F02D21/08; F02M25/07; F02D23/00; F02D41/12; F02D45/00

Foreign References:

JP2007211595A	2007-08-23
JP2003120430A	2003-04-23
JPH04284147A	1992-10-08
JP2003239811A	2003-08-27
JP2005048723A	2005-02-24
JP2006183557A	2006-07-13
JP2006183558A	2006-07-13
JP2004036413A	2004-02-05
JP2007278116A	2007-10-25

Other References: