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Title:
CONTROLLER FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2013241867
Kind Code:
A
Abstract:

To provide a controller for an internal combustion engine capable of accurately detecting blocking of an EGR passage in a specified cylinder.

A controller for an internal combustion engine includes an exhaust gas recirculation system for performing EGR control, the system including an EGR passage 15 for recirculating exhaust gas per cylinder and an EGR device 16 for controlling a flow rate of the exhaust gas to be recirculated. The controller performs learning control of an air-fuel ratio (A/F) during the EGR control. The controller includes a blocking determination section including first and second determination sections to determine blocking of the EGR passage 15 in a specified cylinder. The blocking determination section is configured so that the first determination section makes preliminary determination of blocking of the EGR passage 15 and the second determination section makes main determination of blocking of the EGR passage 15.


Inventors:
UJIIE SHIGEMICHI
ARIIE TAKAHIRO
ANDO IKUO
SASAKI TOSHITAKE
Application Number:
JP2012114776A
Publication Date:
December 05, 2013
Filing Date:
May 18, 2012
Export Citation:
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Assignee:
AISAN IND
TOYOTA MOTOR CORP
International Classes:
F02M25/07; F02D41/02; F02D41/04; F02D41/14; F02D41/22; F02D45/00
Domestic Patent References:
JP2011132860A2011-07-07
JP2010156295A2010-07-15
JPS62174543A1987-07-31
JP2010106785A2010-05-13
JPH06288303A1994-10-11
JP2013160061A2013-08-19
Foreign References:
WO2011055463A12011-05-12
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office



 
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