TRANSMISSION FOR HYBRID VEHICLE

摘要

A transmission for a hybrid vehicle may include an input shaft into which power generated by an engine is input, an output shaft disposed coaxially with the input shaft, a first planetary gear set, a second planetary gear set, and a third planetary gear set disposed between the input shaft and the output shaft to transmit rotational force, each of the first to third planetary gear sets having first, second and third rotary elements, a first motor generator and a second motor generator each connected to the first to third rotary elements of the first to third planetary gear sets, and at least three shifting elements each connected to the first to third rotary elements of the first to third planetary gear sets.

主权项

1. A transmission for a hybrid vehicle comprising:
an input shaft into which power generated by an engine is input; an output shaft disposed coaxially with the input shaft; a first planetary gear set, a second planetary gear set, and a third planetary gear set disposed between the input shaft and the output shaft to transmit rotational force, each of the first to third planetary gear sets having first, second and third rotary elements; a first motor generator and a second motor generator each connected to the first to third rotary elements of the first to third planetary gear sets; and at least three shifting elements each connected to the first to third rotary elements of the first to third planetary gear sets, wherein the first rotary element of the first planetary gear set is continuously connected to the first motor generator, and is fixable by a first shifting element of the shifting elements, the second rotary element of the first planetary gear set is continuously connected to the input shaft, and the third rotary element of the first planetary gear set is continuously connected to the third rotary element of the second planetary gear set, the second rotary element of the third planetary gear set, and the output shaft, wherein the first rotary element of the second planetary gear set is fixable by a second shifting element of the shifting elements, the second rotary element of the second planetary gear set is fixable by a third shifting element of the shifting elements, and is continuously connected to the third rotary element of the third planetary gear set, and wherein the first rotary element of the third planetary gear set is continuously connected to the second motor generator.