A controlling unit has a motor switching controlling unit and a motor command determining unit. The motor switching controlling unit controls a motor switching mechanism so that a third motor connects to a first motor when a first rotational speed is less than a second rotational speed. The first rotational speed is the rotational speed of the first motor corresponding to that of a rotating shaft of the third motor at the rotational speed of the first motor. The second rotational speed is the rotational speed of a second motor corresponding to that of the rotating shaft of the third motor at the rotational speed of the second motor. When the third motor is connected to the first motor, the motor command determining unit determines command torque to the first motor and the third motor so that the command torque to the third motor is no more than the command torque to the first motor.
Work vehicle and controlling method therefor
2015-11-25
Patent
Electronic Resource
English
IPC: | E02F Baggern , DREDGING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |