Road vehicle level controller
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United States of America Patent
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-
Aug 21, 1984
Grant Date -
N/A
app pub date -
Feb 5, 1982
filing date -
Feb 9, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vehicle level controller produces a level lowering command signal whenever the sprung mass of a road vehicle is higher than a given trim band and produces a level raising command signal when the sprung mass is below the trim band. The command signal is applied to a levelling system. The trim band is divided into a high (medium high) and low (medium low) regions. A vehicle level detector produces a signal which distinguishes a vehicle level in four different zones including a range higher than the trim band, a medium high region within the trim band, a medium low region within the trim band and a range lower than the trim band. The level lowering and the level raising command signal are withdrawn whenever a signal from the level detector indicates the medium low and high region within the trim band, respectively.
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