Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2007132236
Kind Code:
A
Abstract:

To improve estimation accuracy of particulate deposited amount.

An exhaust emission control device for an internal combustion engine estimates a deposited amount of particulate based on an inflow of the particulate and a reduction amount of the particulate. In the exhaust emission control device, correcting the reduction amount of the particulate depending of the deposited amount of ash of a collector 40 reduces errors in calculation value of the reduction amount of the particulate influenced by the deposited ash to improve the estimation accuracy of the particulate deposited amount.


Inventors:
YABANETA SHIGETO
KUBOSHIMA TSUKASA
NOSAKA SATORU
TOCHIKAWA KAZUHARU
Application Number:
JP2005324869A
Publication Date:
May 31, 2007
Filing Date:
November 09, 2005
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DENSO CORP
International Classes:
F01N3/02
Domestic Patent References:
JP2004036454A2004-02-05
JP2003222015A2003-08-08
JP2005214178A2005-08-11
Attorney, Agent or Firm:
Yoji Ito
Takahiro Miura
Fumihiro Mizuno