WORK VEHICLE AND WORK VEHICLE CONTROL METHOD

WIPO Patent Application WO/2016/042648

A1

A work vehicle that includes: a work machine; an engine; a variable-capacity, travel hydraulic pump that is driven by the engine; a hydraulic motor that forms a closed circuit between the hydraulic motor and the travel hydraulic pump and that is driven by hydraulic oil that is discharged from the travel hydraulic pump; a driving wheel that is driven by the hydraulic motor and that makes the work vehicle travel; a selection switch that detects the operation state of a movement-direction switching device that is for switching between the forward movement and reverse movement of the work vehicle; and a control device that, when the work vehicle is traveling and the selection switch detects a movement-direction switching device reversal operation that is for reversing the movement direction of the work vehicle, sets the relationship between the vehicle speed of the work vehicle and an upper limit for the rotational speed of the engine such that the upper limit becomes larger as the absolute value of the vehicle speed becomes closer to zero and finds the upper limit for the rotational speed of the engine from the set relationship and the vehicle speed of the work vehicle.

KANEKO SHINJI (JP)
ONODERA YOSHITAKA (JP)
SHITARA YOSHIFUMI (JP)
OIWA TAISHI (JP)
HASHIMOTO JUN (JP)

PCT/JP2014/074749

March 24, 2016

September 18, 2014

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KOMATSU MFG CO LTD (JP)

F02D29/04; B60K17/10; F02D29/00; F02D45/00

JP2006322413A	2006-11-30
JP2011002049A	2011-01-06
JP2000248975A	2000-09-12
JP2009041533A	2009-02-26

SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)

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