Title:
CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2013/187141
Kind Code:
A1
Abstract:
With the present invention, when an EGR control valve is opened and a throttle valve is closed, the reverse flow of intake air containing EGR gas is detected from a change in the mass flow volume of the intake air passing through a compressor (the compressor flow-through volume Qcomp). After the reverse flow of the intake air is detected, the EGR control valve is closed until the intake air that has passed to the upstream side is again drawn into the compressor. Thus, it is possible to prevent the addition of EGR gas to intake air which already contains EGR gas, and thus it is possible to supply intake air having a stable EGR ratio to cylinders of an internal combustion engine (1), and to improve fuel consumption performance and drivability.
Inventors:
KOBARA TETSUYA (JP)
Application Number:
PCT/JP2013/062376
Publication Date:
December 19, 2013
Filing Date:
April 26, 2013
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
F02D21/08; F02D23/00; F02M25/07
Foreign References:
| JP2011069263A | 2011-04-07 | |||
| JP2008106615A | 2008-05-08 | |||
| JPH0726994A | 1995-01-27 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)
Hiromichi Kobayashi (JP)
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