0952320-A2 is referenced by 2 patents and cites 4 patents.

An NOx emission control device which maintains a high NOx emission reduction rate regardless of changes in reducer adsorbing performance includes an reducer adsorbing NOx catalyst for reducing a concentration of NOx under an oxygen-rich condition by means of the reducer. The amount of the reducer to be supplied to the NOx catalyst is calculated based on a parameter relating to the NOx catalyst so that the amount of the reducer to be supplied to the NOx catalyst is reduced when the reducer adsorbing performance of the NOx catalyst is low and the amount of the reducer to be supplied to the NOx catalyst is increased when the reducer adsorbing performance of the NOx catalyst is high.

Title
An nox emission control device and method
Application Number
EP19990107182 19990413
Publication Number
0952320 (A2)
Application Date
April 13, 1999
Publication Date
October 27, 1999
Inventor
Gotoh Masato
JP
Mizuno Tatsuji
JP
Kibe Kazuya
JP
Assignee
Toyota Motor
JP
IPC
F01N 03/08
F02D 41/02
F02D 41/40
F02D 41/02
F01N 03/28
F01N 03/24
F01N 03/20
F01N 03/08
F02D 41/40
F02D 41/02
F01N 03/28
F01N 03/24
F01N 03/20
F01N 03/08
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