Engine control device for work vehicle
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United States of America Patent
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Dec 20, 2016
Grant Date -
Dec 25, 2014
app pub date -
Feb 4, 2013
filing date -
Feb 3, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An engine control device for work vehicle includes: a target rotation speed setting unit that sets a target rotation speed of an engine corresponding to an operation amount of an accelerator pedal; a rotation speed control unit that controls a rotation speed of the engine according to the target rotation speed; a travel driving unit that transmits rotation of the engine to wheels via a torque converter; a speed ratio detection unit that detects a speed ratio between an input shaft and an output shaft of the torque converter; and a target rotation speed correction unit that corrects the target rotation speed set by the target rotation speed setting unit so as to increase the target rotation speed based on the speed ratio when the operation amount of the accelerator pedal is smaller than a predetermined value and the speed ratio detected by the speed ratio detection unit is smaller than a predetermined value within a range which is equal to or greater than 0 and less than 1.
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