Patent ID: 8435147

Claim:
A transmission for a hybrid vehicle comprising: a first differential gear set that includes at least four rotary members, including a rotary member connected to an engine and two rotary members being able to be selectively connected with each other; a second differential gear set that includes at least three rotary members, including a rotary member connected to an output member, a rotary member continuously connected to a rotary member of the first differential gear set, and a rotary member selectively connected to another rotary member of the first differential gear set; a first motor generator that is continuously connected to a rotary member of the first differential gear set other than the rotary member connected to the engine and the rotary members selectively connected with each other; a second motor generator that is continuously connected to the rotary member of the second differential gear set continuously connected to the rotary member of the first differential gear set; a first fixing device that is provided to restrict rotation of the rotary member of the second differential gear set other than the rotary member connected to the output member and the rotary member connected to the second motor generator; and a second fixing device that is provided to restrict rotation of the rotary member of the first differential gear set connected with the first motor generator.