Title:
内燃機関の制御装置
Document Type and Number:
Japanese Patent JP5626370
Kind Code:
B2
Abstract:
Provided is a control apparatus of the internal combustion engine capable of removing deposited foreign matters accumulated on an EGR valve without deteriorating a combustion state of the internal combustion engine. When an ECU judges that the vehicle is under deceleration ("YES" in Step S11) and under fuel cut operation ("YES" in Step S12), the ECU allows an EGR shutoff valve to be fully opened (Step S 13) and obtains an intake pressure "Pclose" under the EGR valve in the fully closed state (Step S 14). Then, the ECU allows the EGR valve to be switched to the fully opened state and obtains an intake pressure "Popen" under the EGR valve in the fully opened state (Step S 15). Then, the ECU calculates a difference ”P between the intake pressures "Popen" and "Pclose", and drives the EGR shutoff valve to a fully closed state (Step S 19) on the condition that the difference ”P is equal to or smaller than a threshold value "Pth1" ("NO" in Step S17). Then, the ECU drives the EGR valve to the fully opened state (Step S20), and subsequently to the fully closed state (Step S21).
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| JP2004036557 | CONTROLLER FOR INTERNAL COMBUSTION ENGINE |
Inventors:
三ヶ島 和哉
野口 知之
野口 知之
Application Number:
JP2012556649A
Publication Date:
November 19, 2014
Filing Date:
February 08, 2011
Export Citation:
Assignee:
トヨタ自動車株式会社
International Classes:
F02M25/07; F02D21/08
Domestic Patent References:
| JP2006112320A | 2006-04-27 | |||
| JP2007100680A | 2007-04-19 | |||
| JP2006070852A | 2006-03-16 |
Foreign References:
| US5592925A | 1997-01-14 |
Attorney, Agent or Firm:
Ariga Army Ichiro
Eiichiro Ariga
Eiichiro Ariga