DEVICE FOR CONTROLLING AIR/FUEL RATIO OF MULTI-CYLINDER INTERNAL COMBUSTION ENGINE

WIPO Patent Application WO/2008/044390

A1

Provided is an air/fuel ratio control device which executes feedback control of the air/fuel ratio according to an output of a sensor for detecting the air/fuel ratio of an exhaust gas in a multi-cylinder internal combustion engine having a throttle valve and open valve characteristic control means. The multi-cylinder internal combustion air/fuel control device can execute an accurate air/fuel ratio control. In the feedback control, the relationship between the output of the sensor and the feedback value is corrected according to the feedback learning correction value learned and decided according to the output of the sensor which is executing the feedback control. When learning and deciding a new feedback learning correction value, the intake amount is controlled only by the throttle vale.

WO/2015/108126	CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
JP2001241348	FUEL INJECTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
JPH0833133	INDUSTRIAL APPLICABILITY: Air-fuel ratio control device for internal combustion engine

FUJIWARA TAKAHIKO (JP)
NAKAGAWA NORIHISA (JP)
HAGIMOTO TAIGA (JP)
KAKO JUNICHI (JP)
KATO NAOTO (JP)
OKAZAKI SHUNTARO (JP)
IDE KOJI (JP)

PCT/JP2007/066064

April 17, 2008

August 13, 2007

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TOYOTA MOTOR CO LTD (JP)
FUJIWARA TAKAHIKO (JP)
NAKAGAWA NORIHISA (JP)
HAGIMOTO TAIGA (JP)
KAKO JUNICHI (JP)
KATO NAOTO (JP)
OKAZAKI SHUNTARO (JP)
IDE KOJI (JP)

F02D41/14; F02D13/02; F02D43/00; F02D45/00

JP2005023874A	2005-01-27
JP2004028029A	2004-01-29
JP2004132314A	2004-04-30
JPH08210158A	1996-08-20
JP2001082190A	2001-03-27
JP2005023874A	2005-01-27

See also references of EP 2072790A4

AOKI, Atsushi et al. (Toranomon 37 Mori Bldg.5-1, Toranomon 3-chom, Minato-ku Tokyo 23, JP)

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