IGNITION TIMING CONTROLLER OF INTERNAL COMBUSTION ENGINE

Title:

IGNITION TIMING CONTROLLER OF INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2010/092876

Kind Code:

A1

Abstract:

Provided is an ignition timing controller of an internal combustion engine. Charging efficiency of an engine is calculated according to detected intake air flow rate and engine speed, and the knock limit ignition timing is calculated according to the engine speed and charging efficiency. According to the knocking detection results by a knocking sensor, a knock correction value is calculated, and a learning parameter table where first and second learning parameters are set is updated based on the engine speed and knock correction value when knocking is detected. The learning parameter table is searched according to the engine speed and the first and second learning parameters are calculated. Using the charging efficiency and the first and second learning parameters, the cylinder correction value corresponding to each of a plurality of cylinders of the engine is calculated, and then the ignition timing is controlled using the knock limit ignition timing and cylinder correction value.

Inventors:

YOSHIIRI MASAYUKI (JP)
TAKAGI JIRO (JP)
KOMATSU HIROTAKA (JP)
HIROTA KAZUHIKO (JP)
KURAUCHI ATSUSHI (JP)
KITAMURA NATSUKO (JP)

Application Number:

PCT/JP2010/051159

Publication Date:

August 19, 2010

Filing Date:

January 28, 2010

Export Citation:

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Assignee:

HONDA MOTOR CO LTD (JP)
YOSHIIRI MASAYUKI (JP)
TAKAGI JIRO (JP)
KOMATSU HIROTAKA (JP)
HIROTA KAZUHIKO (JP)
KURAUCHI ATSUSHI (JP)
KITAMURA NATSUKO (JP)

International Classes:

F02P5/152; F02D45/00; F02P5/153

Foreign References:

JPH03145573A	1991-06-20
JPH0968146A	1997-03-11
JP4068680B2	2008-03-26
JPH0468680B2	1992-11-04
JP2000227013A	2000-08-15
JP2004353473A	2004-12-16

Other References: