Title:
空気過剰で作動する内燃機関の未浄化（ロー）ＮＯｘ濃度を適合するための方法
Document Type and Number:
Japanese Patent JP3531867
Kind Code:
B2
Abstract:
Values for a raw NOx concentration of an internal combustion engine, that are stored on an operating point basis, are read out from a characteristic map and an adaptation of variations in concentration takes place on the basis of an output signal of an NOx sensor provided downstream of a NOx storage catalyst, either by modification of a reduction factor, which serves for the calculation of a corrected raw NOx concentration from the raw NOx concentration, or by direct correction of the values read out from the characteristic map for the raw NOx concentration with a raw concentration correction factor.
Inventors:
ヴォルフガング ルートヴィヒ
コリンナ プフレーガー
ホン ツァン
コリンナ プフレーガー
ホン ツァン
Application Number:
JP2000581353A
Publication Date:
May 31, 2004
Filing Date:
November 03, 1999
Export Citation:
Assignee:
シーメンス アクチエンゲゼルシヤフト
International Classes:
F01N3/08; F01N3/20; F01N3/24; F01N3/28; F02D35/00; F02D41/02; F02D41/04; F02D41/14; (IPC1-7): F01N3/08; F01N3/20; F01N3/24; F01N3/28; F02D35/00; F02D41/04
Attorney, Agent or Firm:
久野 琢也 （外１名）