Patent ID: 8235854
Filing Date: 2012-08-07
Classification: B60K,F16H,Y02T

Abstract:
1. A power train for a hybrid vehicle comprising: a first planetary gear set that has at least four rotary elements; a second planetary gear set that has three rotary elements, one of which are at least disconnectably connected to the first planetary gear set; and a first brake that is configured to restrain rotation of one rotary element of the second planetary gear set, wherein at least two or more independent power sources and an output element are connected to the rotary elements of the first planetary gear set and the second planetary gear set, the output element is connected to the rotary element, which is not connected with the rotary elements of the first planetary gear set, of the second planetary gear set, and an engine and a first motor generator that are connected to the first planetary gear set; and a second motor generator that is connected to the second planetary gear set, and two rotary elements, which are not connected to the engine and the first motor generator, of the first planetary gear set are at least disconnected or connected with the rotary elements of the second planetary gear set, and the second motor generator is connected to a second sun gear of the second planetary gear set, the output element is connected to a second carrier of the second planetary gear set, the first brake is connected to a second ring gear of the second planetary gear set, and the first clutch is disposed between the first sun near of the first planetary gear set and the second ring near of the second planetary gear set.