HYBRID POWERTRAIN UNIT FOR MOTOR VEHICLES WITH A BELT TRANSMISSION DEVICE BETWEEN ELECTRIC MACHINE AND DIFFERENTIAL

摘要

The hybrid powertrain unit comprises an internal combustion engine (E) and a gearbox device (C), the gearbox device (C) capable of being connected to a shaft (5) of the internal combustion engine (E) via a clutch device (6) It has a primary shaft (3). The gearbox arrangement (C) comprises a secondary shaft (7) having an output pinion (9) which engages a first crown wheel (10) of the differential (D), the casing (11) of which is a gearbox arrangement It is rigidly connected to the casing (2) of (C). The unit comprises an electric machine (M) configured to function as both an electric motor and an electric generator, which has a shaft (16) connected by a transmission to the second crown wheel (19) of the differential (D). be prepared When connecting the transmission, a coupling device 25 , which can be actuated via an electronically controlled actuator, is arranged between the second crown wheel 19 of the differential D and the shaft 16 of the electric machine M . The shaft 16 of the electric machine M is connected to the shaft 5 of the internal combustion engine E on the side opposite the gearbox arrangement. The transmission connecting the shaft 16 of the electric machine M to the second crown wheel 19 of the differential D comprises at least one gear reduction jump constituted by a belt transmission 29 .