Patent ID: 8091662

Claim:
A hybrid drive for a vehicle, comprising: at least a main engine in the form of an internal combustion engine; a generator; an electric drive; first and second drive shafts connected by a clutch and respectively to an output of said main engine and said electric drive; a planetary gear including a sun wheel, a ring gear, a planet carrier, and planet wheels, said planetary gear further including at least one output shaft, said first and second drive shafts of said respective main engine and said electric drive being couplable to said sun wheel of said planetary gear for adding respective torques thereof when in a first driving mode of the vehicle corresponding to a first range of speed of the vehicle, and one of said main engine or said electric drive being couplable to said ring gear of said planetary gear so as to enable the addition of the revolutions respectively generated by each of said main engine and said electric drive when in another driving mode corresponding to a second range of speed of the vehicle; and at least one brake being operable to fix said ring gear of said planetary gear while in the first driving mode.