Title:
A control device of an internal-combustion engine
Document Type and Number:
Japanese Patent JP6221321
Kind Code:
B2
Abstract:
A cylinder-inflow EGR gas amount is estimated, a misfire limit EGR gas amount is calculated on the basis of an engine operation state, and the misfire limit EGR gas amount is compared with the cylinder-inflow EGR gas amount to predict whether a misfire occurs. When the misfire is predicted, a misfire avoidance control is executed. Further, an actual misfire countermeasure effect amount in a case of the execution of the misfire avoidance control is calculated, and the actual misfire countermeasure effect amount is compared with a required misfire countermeasure effect amount to determine whether the misfire is avoidable when the misfire avoidance control is executed. If the misfire is unavoidable even if the misfire avoidance control is executed, a delay restriction value of an ignition timing to avoid the misfire is calculated, and the amount of a delay in the ignition timing is restricted using the delay restriction value.
Inventors:
Keitaro Minami
Hideaki Ichihara
Hiroyuki Takezoe
Koji Kuzuhara
Hideaki Ichihara
Hiroyuki Takezoe
Koji Kuzuhara
Application Number:
JP2013086214A
Publication Date:
November 01, 2017
Filing Date:
April 17, 2013
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02P5/15; B60T8/1755; B60W10/06; B60W10/18; F02B31/00; F02D13/06; F02D17/02; F02D21/08; F02D29/02; F02D29/06; F02D41/12; F02D41/22; F02D43/00; F02D45/00; F02M26/06
Domestic Patent References:
| JP2013011271A | ||||
| JP2009281261A | ||||
| JP2010001796A |
Foreign References:
| US20120303247 |
Attorney, Agent or Firm:
Toru Kamada
Takuma Tsuda
Kentaro Ito
Takuma Tsuda
Kentaro Ito