Drive system for hybrid vehicle

A drive system for a hybrid vehicle,

• the drive system comprising:
• an internal combustion engine;
• a first motor generator;
• a power split mechanism that includes a differential mechanism having plural rotation elements capable of making mutually differential rotation, the internal combustion engine and the first motor generator are coupled to the power split mechanism;
• an output member to which power output from the power split mechanism is transmitted;
• a second motor generator that can output the power to the output member;
• a lock mechanism that can be switched between a locking state in which a first rotation element coupled to the first motor generator among the plural rotation elements is unrotatably locked and a releasing state in which rotation of the first rotation element is permitted;
• and
• a rotation limit mechanism that can be switched between a limiting state in which rotation of a second rotation element other than the first rotation element among the plural rotation elements is limited and
• a releasing state in which limit on rotation of the second rotation element is cancelled,
• wherein
• the internal combustion engine, the first motor generator, the power split mechanism, the lock mechanism, and the rotation limit mechanism are arranged on the same axis,
• the power split mechanism is arranged between the internal combustion engine and the first motor generator, and
• the lock mechanism and the rotation limit mechanism are arranged on an opposite side of the internal combustion engine with the power split mechanism and the first motor generator being interposed therebetween.