To suppress drop in torque to a drive shaft and gear change shock, at the time of change-over of a speed stage of a transmission.
When change-over of the speed stage of the transmission 60 is required, an engine 22 and motors MG1, MG2 are controlled such that all required torque Tr* required to the drive shaft is covered by torque transmitted from the engine 22 to a ring gear shaft 32a via a power distribution integrated mechanism 30, along with power generation of the motor MG1 receiving engine torque reaction force within a range of an input limit Win of a battery 50, and then, the change-over of the speed stage is performed. Due to this, since the speed stage can be changed after torque required to be output from the motor MG2 to the drive shaft is set to be approximately 0, drop in the torque and gear change shock at the time of change-over of the speed stage can be suppressed.
UECHI KENSUKE
YAMAMOTO MASAYA
KAMIOKA KIYOSHIRO
OKASAKA KAZUOMI
