Vehicle weight estimating device
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United States of America Patent
Stats
-
May 2, 2006
Grant Date -
Jan 13, 2005
app pub date -
Mar 26, 2004
filing date -
Mar 28, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vehicle weight estimating device includes an acceleration detecting portion, a driving force estimating, a filtered acceleration obtaining means portion for eliminating a low frequency component from the detected acceleration, a filtered driving force obtaining portion for eliminating a low frequency component from the estimated driving force, an acceleration integrating portion for obtaining an acceleration integration, a driving force integrating portion for obtaining a driving force integration, a vehicle weight estimating for estimating the vehicle weight based on the acceleration integration and the driving force integration, a vehicle weight averaging portion for averaging the estimated vehicle weight, a limiter determining portion for setting an limiter initial value, an upper limiter and a lower limiter and setting an initial area framed by each limiter, and a vehicle weight correcting portion for correcting the vehicle weight averaged based on the initial area.
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