Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2012/077183
Kind Code:
A1
Abstract:
The objective of this invention is to provide a control device for an internal combustion engine capable of suppressing deterioration of the catalyst in an internal combustion engine equipped with a turbocharger when the turbocharger is at a high temperature and when the speed is reduced and the fuel is cut.
The internal combustion engine is equipped with: a turbocharger turbine provided in the exhaust passage of the internal combustion engine; a catalyst provided in the exhaust passage farther downstream than the turbine; a bypass passage that bypasses the turbine by connecting the exhaust passage farther upstream from the turbine and the portion of the exhaust passage from the turbine to the catalyst; and a wastegate valve capable of opening/closing the bypass passage. The wastegate valve is opened when the speed is reduced and an operation to cut the fuel is executed, and when the temperature of the turbocharger is higher than a set value.
Inventors:
OTSUKA TAKAYUKI (JP)
Application Number:
PCT/JP2010/071911
Publication Date:
June 14, 2012
Filing Date:
December 07, 2010
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
OTSUKA TAKAYUKI (JP)
OTSUKA TAKAYUKI (JP)
International Classes:
F02D23/00; F01N3/20; F02B33/00; F02B37/16; F02D17/02; F02D43/00
Foreign References:
| JP2000265893A | 2000-09-26 | |||
| JP2009074426A | 2009-04-09 | |||
| JP2010133286A | 2010-06-17 |
Other References:
See also references of EP 2615281A4
Attorney, Agent or Firm:
TAKAHASHI, Hideki et al. (JP)
Hideki Takahashi (JP)
Hideki Takahashi (JP)
Download PDF:
Claims: