TRANSFER CASE FOR HYBRID VEHICLE

摘要

A hybrid drive system for a four-wheel drive system arranged to supply motiv e power to a transfer case (20) from an internal combustion engine (12) and/or an electric motor (22). The transfer case is comprised of a planetary gearse t (56) having a first input (82) driven by the motor/generator, a second input (80) driven by the engine, and an output (88) directing drive torque to the front and rear drivelines. The output of the planetary gearset drives a rear output shaft (50) connected to the rear driveline and further drives a front output shaft (40) connected to the front driveline. The transfer case furthe r includes a second planetary gearset (58) having an input (112) driven by the motor/generator and an output (116) driving the first input of the first planetary gearset. This hybrid drive arrangement permits use of a modified transfer case in place of a conventional transfer case in a traditional four - wheel drive driveline.