Title:
PARTICULATE MATTER OXIDIZING SPEED CALCULATING DEVICE, PARTICULATE MATTER DEPOSITED AMOUNT CALCULATING DEVICE AND INTERNAL COMBUSTION ENGINE EXHAUST EMISSION CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/098511
Kind Code:
A1
Abstract:
For the purpose of calculating a PM oxidizing speed Vc, a map MAPc prepared using a suction air amount GA as a parameter is used along with a catalyst bed temperature affecting the activity of a catalyst reaction (S104). The suction air amount GA is closely related with an oxygen amount per time supplied to an exhaust emission controlling filter, and affects the oxidizing speed of PM deposited on the exhaust emission controlling filter. Therefore, a suction air amount GA used as one of factors determining an oxidizing speed enables a PM oxidizing speed Vc to be calculated with high accuracy. Accordingly, when a PM oxidizing speed Vc thus determined is used to execute the estimation calculation (108) of a PM deposit amount PMsm, a high-accuracy PM deposit amount PMsm can be determined independent of an internal combustion engine operating area.
Inventors:
KANAZAWA SHOGO (JP)
SUGIYAMA TATSUMASA (JP)
OTSUBO YASUHIKO (JP)
SUGIYAMA TATSUMASA (JP)
OTSUBO YASUHIKO (JP)
Application Number:
PCT/JP2006/305772
Publication Date:
September 21, 2006
Filing Date:
March 16, 2006
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
KANAZAWA SHOGO (JP)
SUGIYAMA TATSUMASA (JP)
OTSUBO YASUHIKO (JP)
KANAZAWA SHOGO (JP)
SUGIYAMA TATSUMASA (JP)
OTSUBO YASUHIKO (JP)
International Classes:
F01N3/02; B01D53/86; B01D53/94; F01N3/24; B01D46/42
Foreign References:
| JP2005054632A | 2005-03-03 | |||
| JP2004197722A | 2004-07-15 |
Attorney, Agent or Firm:
Fukami, Hisao (Nakanoshima Central Tower 22nd Floor, 2-7,
Nakanoshima 2-chome, Kita-k, Osaka-shi Osaka, JP)
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