Control for improved vehicle performance
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 10, 2002
Issued Date -
N/A
app pub date -
Jun 7, 2002
filing date -
Mar 17, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An engine control system for managing lean NO.sub.x trap decontamination uses associated fuel economy impacts to determine when decontamination is enabled. In particular, a maximum achievable benefit provided by lean operation with a decontaminated NO.sub.x trap, a present fuel economy benefit being provided by lean operation, and a fuel economy penalty for performing decontamination are used. When a resulting benefit is greater than a penalty, decontamination is enabled.
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