Tractor comprising a control system
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United States of America Patent
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Apr 9, 2013
Grant Date -
Dec 6, 2012
app pub date -
Oct 5, 2010
filing date -
Nov 19, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tractor has a control system configured for disengaging the clutch a first time, selecting a first transmission ratio of the change speed gearbox, engaging the clutch a first time to drive the PTO shaft determining the speed of the PTO shaft, disengaging the clutch a second time when the PTO shaft attains a predetermined first speed, selecting a second transmission ratio of the change speed gearbox and engaging the clutch a second time to drive the PTO shaft up to a desired second speed.
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