DRIVE UNIT FOR HYBRID VEHICLE

摘要

A drive unit for a hybrid vehicle in which selectable operating modes are increased and power distribution ratio is changeable is provided. The drive unit comprises: a first planetary gear unit having a first input element to which power of an engine is applied, a first reaction element connected to a first motor, and a first output element; a second planetary gear unit that performs having a second input element connected to the first output element, a second output element connected to an output member, and a second reaction element; a first clutch that selectively connects any of the first input element and the first reaction element to the second reaction element; and a second clutch that selectively connects at least any of two elements of the second planetary gear unit to rotate the second planetary gear unit integrally.

主权项

1. A drive unit for a hybrid vehicle, in which an output power of an engine is distributed to a first motor having a generating function and to an output member, and in which an output power of a second motor driven by an electric power generated by the first motor is added to a power delivered from the output member, comprising:
a first planetary gear unit that performs a differential action among a first input element to which the output power of the engine is applied, a first reaction element connected to the first motor, and a first output element; a second planetary gear unit that performs a differential action among a second input element connected to the first output element, a second output element connected to the output member, and a second reaction element; a first clutch that selectively connects one of the first input element and the first reaction element to the second reaction element; and a second clutch that selectively connects two of the second input element, the second output element, and the second reaction element to rotate the second planetary gear unit integrally.