Engine control device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 11, 2002
Grant Date -
Jul 26, 2001
app pub date -
Mar 8, 2001
filing date -
Mar 19, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An engine control device provided with a lean NOx catalyst comprises means for estimating a condition of the lean NOx catalyst, means for performing reactivation control of the lean NOx catalyst based on the result, and means for controlling the termination of the reactivation control. The lean NOx catalyst is constantly made usable in a favorable condition.
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