drive unit for a vehicle

Abstract

Drive unit for a vehicle (100), comprising • a first electric machine (EM1), • a second electrical machine (EM2) arranged coaxially with it, • a coaxially arranged gearbox (SG) which is at least partially located within the second electric machine (EM2), • a coaxially arranged differential (DG) with a fixed gear ratio, • a drive shaft (An) for connecting the second electric machine (EM2) to the gearbox (SG), • an output shaft (Ab) for connecting the first electric machine (EM1) to the differential (DG) and a positive-locking switching unit with at least one first switching element (A), a second switching element (B, C') and a single axially displaceable sliding sleeve (SM) which is rotationally fixed to the output shaft (Ab) in each switching position, wherein the switching unit has at least two gear positions and a neutral position, wherein in the closed state of the first switching element (A) a first gear with a first ratio is engaged, wherein in the closed state of the second switching element (B, C') a second gear with a second ratio is engaged, further comprising • a first planetary set (PS1) with a first sun shaft (SO1), a first ring gear shaft (HR1) and a first bridge shaft (ST1), • a second planetary gear set (PS2) with a second sun gear shaft (SO2), a second ring gear shaft (HR2) and a second bridge shaft (ST2) and • a third switching element (C) integrated into the switching unit, wherein the switching unit has three gear positions and two neutral positions, • wherein the first solar shaft (SO1), the second solar shaft (SO2) and the drive shaft (An) are connected in a rotationally fixed manner, • wherein the first ring gear shaft (HR1) is connected to a stationary component in a rotationally fixed manner, • wherein the first web shaft (ST1) and the second ring gear shaft (HR2) are connected in a rotationally fixed manner, • wherein, in the closed state of the first switching element (A), the first web shaft (ST1), the second ring gear shaft (HR2) and the output shaft (Ab) are connected in a rotationally fixed manner, • wherein, in the closed state of the second switching element (B), the second web shaft (ST2) and the output shaft (Ab) are connected in a rotationally fixed manner, • wherein in the closed state of the third switching element (C) a third gear with a third ratio is engaged, wherein in the third gear the first sun shaft (SO1), the second sun shaft (SO2), the input shaft (An) and the output shaft (Ab) are connected in a rotationally fixed manner.

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