Title:
A control device of an internal-combustion engine
Document Type and Number:
Japanese Patent JP6255909
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine that enables suppression of outflow of NOx.SOLUTION: A control device for an internal combustion performs normal operation control including lean control for making an air-fuel ratio of exhaust gas flowing in to an exhaust purification catalyst lean and rich control for making the air-fuel ratio of the exhaust gas flowing in to the exhaust purification catalyst rich. The normal operation control includes determination criterion reduction control for reducing determination reference storage amount in the lean control when an air-fuel ratio of exhaust gas flowing out from the exhaust purification catalyst for an execution period of the lean control reaches a lean determination air-fuel ratio or larger.
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Inventors:
Tokuhisa Nakagawa
Shuntaro Okazaki
Yamaguchi Yushi
Shuntaro Okazaki
Yamaguchi Yushi
Application Number:
JP2013228303A
Publication Date:
January 10, 2018
Filing Date:
November 01, 2013
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D41/14; F01N3/24; F02D45/00
Domestic Patent References:
| JP2006183543A | ||||
| JP2004239088A | ||||
| JP2004036396A | ||||
| JP2007113528A | ||||
| JP2010084671A | ||||
| JP9158721A | ||||
| JP2005344598A | ||||
| JP2005299587A | ||||
| JP2006161815A | ||||
| JP2002349316A | ||||
| JP2015086840A |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Tatsuki Sone
Yuichi Morimoto
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Tatsuki Sone
Yuichi Morimoto