Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2019100221
Kind Code:
A
Abstract:
To suppress deterioration of emissions during increase correction of fuel injection amount after completion of fuel cut operation of an internal combustion engine.SOLUTION: This control device for an internal combustion engine is a control device for performing feedback control of an air-fuel ratio of gas flowing into an exhaust emission control catalyst mounted to an exhaust passage of the internal combustion engine. The control device is configured to calculate a deviation between oxygen amount occluded in the catalyst and its target occlusion amount on the basis of the amount of air sucked to a cylinder and an output signal of an air-fuel ratio sensor installed upstream of the catalyst in the exhaust passage and change a target of an air-fuel ratio to be converged through the feedback control in accordance with the deviation.SELECTED DRAWING: Figure 5
Inventors:
HIGUCHI SHOGO
Application Number:
JP2017229888A
Publication Date:
June 24, 2019
Filing Date:
November 30, 2017
Export Citation:
Assignee:
DAIHATSU MOTOR CO LTD
International Classes:
F02D41/14; F02D41/04; F02D41/12
Domestic Patent References:
| JP2003041990A | 2003-02-13 | |||
| JP2013177882A | 2013-09-09 | |||
| JP2014066154A | 2014-04-17 | |||
| JP2016023621A | 2016-02-08 |
Attorney, Agent or Firm:
Kazuhiro Akazawa
Takeshi Miyazawa
Takeshi Miyazawa