Patent ID: 8342996
Filing Date: 2013-01-01
Classification: B60K,F16H,Y02T

Abstract:
1. An electrically-variable transmission for a vehicle, comprising: an input member; an output member; a stationary member; wherein the input member and the output member establish a first axis of rotation; a first and a second planetary gear set, each having a sun gear, a carrier rotatably supporting pinion gears, and a ring gear, with the pinion gears meshing with both the sun gear and the ring gear; a first and a second motor/generator; wherein the first motor/generator is connected for rotation with the sun gear of the first planetary gear set and the second motor/generator is connected for rotation with the sun gear of the second planetary gear set; a first torque-transmitting mechanism selectively engagable to ground the ring gear of the second planetary gear set to the stationary member; a second torque-transmitting mechanism selectively engagable to connect the sun gear of the first planetary gear set for rotation with the ring gear of the second planetary gear set; a drive member connected to the output member for rotation therewith; a first shaft continuously connecting the carrier of the first planetary gear set for common rotation with the carrier of the second planetary gear set; a driven member operatively connected to the drive member and rotatably driven by the drive member about a second axis of rotation; a differential having a carrier, and first and second side gears; wherein the first and second side gears establish a third axis of rotation; and a torque transfer arrangement operatively connected with the differential and with the driven member to transfer torque from the driven member to the differential.