Method and system for purge cycle management of a lean NOx trap
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 16, 2002
Grant Date -
N/A
app pub date -
Apr 4, 2000
filing date -
Apr 4, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Purging of a NO.sub.X trap is initiated if the estimated mass of NO.sub.X in the trap exceeds a NO.sub.X mass threshold value unless the estimated probability that the engine will be subjected to high load and high speed conditions exceed a probability threshold value, in which event the decision whether to initiate the purging of said trap is delayed for a predetermined time interval.
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