Title:
METHOD AND APPARATUS FOR OPERATING METERING UNIT OF CATALYST
Document Type and Number:
Japanese Patent JP2004225695
Kind Code:
A
Abstract:
To meter the amount of reagent to be metered, especially for example the amount of reducer of urea solution, or the like, from a few characteristic charts with a small registration labor, and further to realize optimum harmful substance reduction for especially reducing the amount of nitrogen oxide in an exhaust gas so that it does not exceed a prescribed limit value.
A steady value (reagent steady value 320) of the reagent (200) to be metered starting from the adopted, steady operation state of the catalyst (10) and/or combustion equipment (3) is obtained for correction by using at least one correction coefficient (dynamic correction coefficient 380) for dynamic adaptation.
Inventors:
WICKERT STEFAN
Application Number:
JP2004011148A
Publication Date:
August 12, 2004
Filing Date:
January 19, 2004
Export Citation:
Assignee:
BOSCH GMBH ROBERT
International Classes:
F01N3/08; B01D53/94; F01N3/20; (IPC1-7): F01N3/08
Domestic Patent References:
| JPH1047048A | 1998-02-17 | |||
| JPH04255521A | 1992-09-10 | |||
| JP2000220438A | 2000-08-08 |
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel
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