Patent ID: 8246501
Filing Date: 2012-08-21
Classification: B60K,F16H,Y02T

Abstract:
1. A hybrid electro-mechanical transmission connectable with multiple power sources, comprising: an output member; a stationary member; a first planetary gear set having a first, second, and third node, and a compound planetary gear arrangement having a fourth, a fifth, a sixth, a seventh and an eighth node; the power sources including: a first motor/generator; a second motor/generator, and an engine; wherein: the engine and the first motor/generator are each operatively connected to the first planetary gear set, the second motor/generator is operatively connected to each of the first gear set and the compound planetary gear arrangement, and the output member is operatively connected to the compound planetary gear arrangement, such that the transmission provides a forward under-drive mode, a forward direct drive mode, a forward over-drive mode, and a reverse mode with respect to at least one of the engine, the first motor/generator, and the second motor/generator.