A power transmission device of a work vehicle includes a motor control unit that controls first and second motors to keep the transmission speed ratio at a maximum value when a vehicle speed is greater than a second vehicle speed where the transmission speed ratio reaches the maximum value obtainable by the power transmission device, and less than a third vehicle speed where a rotation speed of the second motor reaches a predetermined limit value. A controller increases a rotation speed of an engine from a second rotation speed of the engine when the vehicle speed is greater than the second vehicle speed and less than a third vehicle speed, and increases the rotation speed of the engine from a third rotation speed of the engine when the vehicle speed is greater than the third vehicle speed.


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    Title :

    Work vehicle and method of controlling work vehicle


    Contributors:

    Publication date :

    2021-03-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / E02F Baggern , DREDGING / F16H Getriebe , GEARING



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