Proposed is a hybrid work vehicle that increases the limiting vehicle speed, and a method of controlling a work vehicle. A work vehicle is equipped with a power transmission device and a controller. The power transmission device includes a mode switching mechanism. The mode switching mechanism is configured to switch a drive power transmission route in the power transmission device to one mode of at least two modes. The at least two modes include a first mode, and a second mode used in a range with the higher transmission speed ratio than the first mode. The controller increases the rotation speed of the engine from a first rotation speed for the engine corresponding to a first vehicle speed when the vehicle speed is within a range greater than the first vehicle speed where the transmission speed ratio reaches a predetermined first value that is less than the maximum value of the transmission speed ratio obtainable by the power transmission device. When the transmission route is in the second mode, the first value is greater than a second value of the transmission speed ratio at which the rotation speeds of the first motor and the second motor are equal.
WORK VEHICLE, AND WORK VEHICLE CONTROL METHOD
NUTZFAHRZEUG UND NUTZFAHRZEUGSTEUERUNGSVERFAHREN
VÉHICULE DE TRAVAIL ET SON PROCÉDÉ DE COMMANDE
2016-07-06
Patent
Electronic Resource
English
IPC: | F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 / E02F Baggern , DREDGING / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
European Patent Office | 2024
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