| 摘要 |
<p>Disclosed is a power transmission system of a hybrid electrical vehicle. According to an embodiment of the present invention, the power transmission system of the hybrid electrical vehicle comprises: an input axis in which power of an engine is inputted; a first planet gear set arranged on the input axis, where one rotation element is connected with the input axis, and another rotation element is connected with a first motor/generator, and the other rotation element is connected with a transmission housing among three rotation elements; a second planet gear set arranged on the rear side of the first planet gear set, where one rotation element is connected with one rotation element of the first planet gear set, and another rotation element is connected with a second motor/generator, and the other rotation element is connected with the transmission housing among three rotation elements; a variable direct means selectively connecting two rotation elements among three rotation elements of the second planet gear set; a variable connection means selectively connecting the other rotation element to the transmission housing among three rotation elements of the second planet gear set; and an output gear connected with another rotation element among three rotation elements of the second planet gear set, where rotation power of the engine, and the first and the second motor/generator changes speed and is outputted.</p> |
