Differential transmission device for dividing power flow from power train section to wheel drive trains of motor vehicle, has planetary gear differential stage and superimposed transmission stage kinematically fastened to wheel drive trains

摘要

The differential transmission device has a planetary gear differential stage (1) for dividing the power flow from a power train section to a primary wheel drive train (4) and a secondary wheel drive train (5). A superimposed transmission stage (2) is provided, which is kinematically fastened to the wheel drive trains, and couples the wheel drive trains with adjustable variable coupling degree. The coupling degree of the superimposed transmission stage is adjustable on fluid-mechanical paths.