Title:
CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2016205185
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To scavenge the inside of an intake pipe in which an EGR gas remains in a short time when deceleration-operating an internal combustion engine in which supercharging by a compressor and the introduction of the EGR gas via an LPL-EGR pipe are performed.SOLUTION: In the case that a deceleration requirement arises during the execution of EGR control, when an operation condition of a supercharged engine after the closing of an LPL-EGR pipe 21 is transited to a prescribed operation condition, the LPL-EGR pipe 21 is opened once again, and control for opening an air bypass pipe 61 is performed. Since an EGR gas flows back in the LPL-EGR pipe 21 under the prescribed operation condition, the EGR gas which remains in an intake pipe 3 is made to flow back in the LPL-EGR pipe 21, and can be returned to an exhaust pipe 4 by opening the LPL-EGR pipe 21 when the operation condition of the supercharged engine is transited to the prescribed operation condition. By opening the air bypass pipe 61, pressure in the intake pipe 3 at an upstream side rather than the compressor 51 is raised, and the backflow of the EGR gas can be promoted.SELECTED DRAWING: Figure 4
Inventors:
SADAKANE SHINJI
SHIBAIKE YUSHI
SHIBAIKE YUSHI
Application Number:
JP2015085362A
Publication Date:
December 08, 2016
Filing Date:
April 17, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02M26/00; F02B37/00; F02B37/12; F02D21/08; F02D23/00; F02D43/00; F02D45/00
Domestic Patent References:
| JP2014034959A | 2014-02-24 | |||
| JP2014240206A | 2014-12-25 |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi
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