Drive unit for motor vehicle has crankcase connected to gearbox input shaft at least via flexible element for transferring torque from crankshaft to gearbox input shaft

摘要

The drive unit has an electric machine mounted between the crankshaft and the gearbox and with its stator rigidly joined to the crankcase. The rotor or a rotor holder is mounted on the crankcase via a bearing and joined to gearbox input shaft. The crankcase is connected to the gearbox input shaft at least via a flexible element to transfer torque from the crankshaft to the gearbox input shaft. The drive unit has a combustion engine and gearbox (4), whereby the vehicle's driven wheels are driven by a rotary motion of the gearbox output shaft. An electric machine (6) with at least one rotor (9) and stator (8) is mounted in the drive train so that its central axis (7) and the gearbox input shaft longitudinal axis form a common axis. The electric machine is mounted between the gearbox end of the crankshaft (1) and the gearbox with its stator rigidly joined to the crankcase (3). The rotor or a rotor holder (10) is mounted on the crankcase via a bearing (13) on one side and joined to a gearbox input shaft on the other. The crankcase is connected to the gearbox input shaft at least via a flexible element (15) for transferring torque from the crankshaft to the gearbox input shaft.