VEHICLE AND ITS CONTROL METHOD

摘要

A vehicle includes: an engine; a planet gear mechanism connected to an output shaft and a drive shaft of the engine; a first motor connected to the planet gear mechanism; a second motor which can input and output a power to/from the drive shaft; and a battery for passing power to the two motors. The vehicle is controlled so that when the battery temperature Tb is below a threshold value Tbref, the intermittent operation of the engine is inhibited and the vehicle travels while the requested torque is outputted to the drive shaft, which is accompanied by battery temperature increase control. When the battery temperature Tb is equal to or above the threshold value Tbre and the engine water temperature Tw is equal to or above a threshold value Twre, control is performed so that the requested torque is outputted to the drive shaft, which is accompanied by the intermittent operation of the engine. When the battery temperature Tb is equal to or above the threshold value Tbref but the engine water temperature Tw is below the threshold value Twref, control is performed so that the intermittent operation of the engine is inhibited and the vehicle travels while the requested torque is outputted to the drive shaft, which is accompanied by continuation of the battery temperature increase control.