Title:
仮想センサを使用するNOx排出制御システム
Document Type and Number:
Japanese Patent JP4319461
Kind Code:
B2
Abstract:
A method and system may be provided to perform a process for controlling NOx emissions of an target engine. In one embodiment of the invention, the process may include determining predicted NOx values based on a model (139) reflecting a predetermined relationship between control parameters and NOx emissions, wherein the control parameters include ambient humidity (H), manifold pressure (Pint), manifold temperature (Tint), fuel rate (Mf), and engine speed (N) associated with the engine. Further, the process may include adjusting the model (139) based on a determination of whether the predicted NOx values meet a predetermined criteria associated with actual NOx values. The adjusted model may be stored in a memory (137) associated with the engine whereby NOx emissions exhausted from the engine may be reduced based on virtual NOx emission values determined from the adjusted model (139).
Inventors:
Ivan E. Jacobson
Cho Yi Lian
Shamala Slymbasa
Cho Yi Lian
Shamala Slymbasa
Application Number:
JP2003130762A
Publication Date:
August 26, 2009
Filing Date:
May 08, 2003
Export Citation:
Assignee:
CATERPILLAR INCORPORATED
International Classes:
F01N3/08; F02D45/00; B01D53/34; B01D53/56; B01D53/74; B01D53/94; F01N3/20; F02D41/14; G05B13/04; F01N9/00; F01N13/02; F02D41/02
Domestic Patent References:
| JP3017118U | ||||
| JP9501782A |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe
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