CONTROL METHOD AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

WIPO Patent Application WO/2005/068808

A1

An internal combustion engine has a throttle controlling mechanism, a valve characteristics varying mechanism for controlling an internal EGR rate by controlling an overlap time (Pa) and a non-overlap time (Pb), and output setting means for setting a demand amount of an engine output. The throttle controlling mechanism controls the degree of opening of a throttle valve so that the throttle valve is fully opened at a predetermined load (Da) as an operation amount (D) increases in a first load region (Fa) where a load up to the predetermined load (Da) in a low load region (F1) is covered, and controls the throttle valve so that the throttle valve is fully opened at a second load region (Fb) where the predetermined load (Da) is exceeded. The valve characteristics varying mechanism controls in the entire load range the overlap time (Pa) or the non-overlap time (Pb) depending on the demand amount to control an engine output, and controls valve operation characteristics so that the maximum internal EGR rate is achieved at the predetermined load (Da).

TANABE KAZUYA (JP)
TSUTSUMIZAKI TAKASHI (JP)
INOMOTO YUTAKA (JP)
TSUNASHIMA KOSUKE (JP)

PCT/JP2005/001032

July 28, 2005

January 20, 2005

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HONDA MOTOR CO LTD (JP)
TANABE KAZUYA (JP)
TSUTSUMIZAKI TAKASHI (JP)
INOMOTO YUTAKA (JP)
TSUNASHIMA KOSUKE (JP)

F01L1/34; F01L13/00; F02D9/02; F02M25/07; F02D11/10; F02D13/02; F02D21/08; F02D41/04; F02D41/06; F02D43/00; F02B61/02; (IPC1-7): F02D13/02; F02D9/02; F02D43/00

JPH11107861A	1999-04-20
JP2000073803A	2000-03-07
JPS5720528A	1982-02-03
JPS61198536U	1986-12-11
JP2002070597A	2002-03-08
JPH11117777A	1999-04-27

See also references of EP 1757787A4

Oguri, Shohei (7-13 Nishi-Shinbashi 1-chom, Minato-ku Tokyo, JP)

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