Title:
CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2017207008
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To avoid that a maximum output of an engine is unnecessarily lowered.SOLUTION: A control device of an internal combustion engine comprises: an ignition system including an ignition coil and an energy supply circuit for supplying electrical energy to the ignition coil; an EGR passage for making an exhaust gas flow back to an intake passage from the exhaust passage; an operation state changing part for changing a target air-fuel ratio to an air-fuel ratio which is lower than a lean air-fuel ratio when the target air-fuel ratio is the lean air-fuel ratio when a misfire or an ignition abnormality occurs in a cylinder, and changing an operation state of the internal combustion engine by stopping external EGR control when the external EGR control is performed; and a fuel injection stopping part for continuing fuel injection in the operation state of the internal combustion engine after the change when the misfire or the ignition abnormality does not occur by the change of the operation state of the internal combustion engine, and stopping the fuel injection when the misfire or the ignition abnormality occurs in the operation state of the internal combustion engine after the change.SELECTED DRAWING: Figure 1
Inventors:
NAKAMURA SATOSHI
NAKANO TOMOHIRO
NAKANO TOMOHIRO
Application Number:
JP2016099769A
Publication Date:
November 24, 2017
Filing Date:
May 18, 2016
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D45/00; F02D41/22; F02D43/00; F02M26/13; F02M26/46
Attorney, Agent or Firm:
Shuhei Katayama