HYBRID DRIVE DEVICE OF A MOTOR VEHICLE AND POWER TRANSMISSION MECHANISM

Hybrid drive device for a motor vehicle comprising a parallel-shaft transmission (200) in which a primary shaft (202) transmits the power of a thermal drive engine to a secondary shaft (203) connected to the vehicle's wheels, and an electric machine (300) transmitting its power to the secondary shaft of the transmission (200), characterized in that it comprises a two-speed power transmission mechanism (100) arranged between the electric machine and the secondary shaft of the transmission.