| 摘要 |
<p>Disclosed is a power transmission system of a hybrid vehicle. According to an embodiment of the present invention, the power transmission system of a hybrid vehicle comprises: an input axis where the power of an engine is inputted; a first rotary axis arranged in parallel with a predetermined gap from the input axis; a first planetary gear set connected to a first motor/generator having a first rotary element arranged in the input axis by an external gear by being arranged in a first rotary axis and connected to an output gear through a second rotary axis having a second rotary element arranged in the first rotary axis without rotational interference, which has a third rotary element connected to the input axis by the external gear; a second planetary gear set, which has a fourth rotary element connected to a second motor/generator through the first rotary axis by being arranged in the first axis and is selectively connected to the input axis by an external gear, which has a fifth rotary element connected to the second rotary element, and has a sixth rotary element selectively connected to the transmission housing; three transfer gears arranged in the connection unit of the external gear; a variable direct coupling unit which selectively connects two rotary elements among three rotary elements of the second planetary gear set; and a variable connection unit arranged in the selective connection unit.</p> |
