Abstract: A shaft (W) for a motor vehicle transmission (G) includes four axial bore holes (B1, B2, B3, B4) for conducting fluid within the shaft (W). A central axis of each of the four bore holes (B1, B2, B3, B4) is spaced apart from an axis of rotation (WA) of the shaft (W). A radial distance (r1) between the central axis of at least two of the four bore holes (B1, B2, B3, B4) and the axis of rotation (WA) differs from a radial distance (r2) between the central axis of one of the remaining bore holes and the axis of rotation (WA). A transmission (G) for a motor vehicle with a shaft (W) is also provided.

Abstract: A method for operating a hybrid drive train of a motor vehicle includes: starting the motor vehicle solely with the aid of an electric machine; engaging a torque converter lockup clutch for rotationally fixing an impeller of a torque converter to a turbine wheel of the torque converter, wherein the turbine wheel is rotationally fixed to the electric machine; and engaging a clutch in order to drivingly connect the impeller to a motor vehicle drive unit, in order to start the motor vehicle drive unit.

Abstract: A drive train unit (HY, G) for a motor vehicle includes a first shaft (TW), a second shaft (PW), and a third shaft (AN). The first shaft (TW) is rotatably mounted at an inner diameter of the second shaft (PW) with a first bearing (L1). The second shaft (PW) is rotatably mounted at an inner diameter of the third shaft (AN) with a second bearing (L2, L2x). A lube oil feed to the first bearing (L1) and the second bearing (L2, L2x) takes place through a bore hole (B1) arranged in the first shaft (TW). An oil baffle chamber (S) is formed at an inner surface of the second shaft (PW) and includes a first outflow (S1) and a second outflow (S2). A drive train for a motor vehicle may include such a drive train unit (HY, G).

Abstract: A shaft (W) for a motor vehicle transmission (G) may have axial bore holes positioned within the shaft and configured to guide fluid within the shaft. The shaft may have first, second, and third axial sections (W1, W2, W3), the second axial section being axially between the first and third axial sections. Fluid enters the axial bore holes in the second axial section and exits the axial bore holes in the first and third axial sections. One of the axial bore holes (B2; B1, B1a) is arranged, at least partially, in the first axial section and is radially spaced from an axis of rotation (WA) of the shaft. Another of the axial bore holes (B1RS; B_SE5, B3a) is arranged, at least partially, in the third axial section. The one of the axial bore holes (B2; B1, B1a) is coaxial with the other of the axial bore holes (B1RS; B_SE5, B3a).

Abstract: A shaft (W) for a motor vehicle transmission (G) includes four axial bore holes (B1, B2, B3, B4) for conducting fluid within the shaft (W). A central axis of each of the four bore holes (B1, B2, B3, B4) is spaced apart from an axis of rotation (WA) of the shaft (W). A radial distance (r1) between the central axis of at least two of the four bore holes (B1, B2, B3, B4) and the axis of rotation (WA) differs from a radial distance (r2) between the central axis of one of the remaining bore holes and the axis of rotation (WA). A transmission (G) for a motor vehicle with a shaft (W) is also provided.

Abstract: A drive train unit (HY, G) for a motor vehicle includes a first shaft (TW), a second shaft (PW), and a third shaft (AN). The first shaft (TW) is rotatably mounted at an inner diameter of the second shaft (PW) with a first bearing (L1). The second shaft (PW) is rotatably mounted at an inner diameter of the third shaft (AN) with a second bearing (L2, L2x). A lube oil feed to the first bearing (L1) and the second bearing (L2, L2x) takes place through a bore hole (B1) arranged in the first shaft (TW). An oil baffle chamber (S) is formed at an inner surface of the second shaft (PW) and includes a first outflow (S1) and a second outflow (S2). A drive train for a motor vehicle may include such a drive train unit (HY, G).

Abstract: A method for operating a hybrid drive train of a motor vehicle includes: starting the motor vehicle solely with the aid of an electric machine; engaging a torque converter lockup clutch for rotationally fixing an impeller of a torque converter to a turbine wheel of the torque converter, wherein the turbine wheel is rotationally fixed to the electric machine; and engaging a clutch in order to drivingly connect the impeller to a motor vehicle drive unit, in order to start the motor vehicle drive unit.

Abstract: A shaft (W) for a motor vehicle transmission (G) may have axial bore holes positioned within the shaft and configured to guide fluid within the shaft. The shaft may have first, second, and third axial sections (W1, W2, W3), the second axial section being axially between the first and third axial sections. Fluid enters the axial bore holes in the second axial section and exits the axial bore holes in the first and third axial sections. One of the axial bore holes (B2; B1, B1a) is arranged, at least partially, in the first axial section and is radially spaced from an axis of rotation (WA) of the shaft. Another of the axial bore holes (B1RS; B_SE5, B3a) is arranged, at least partially, in the third axial section. The one of the axial bore holes (B2; B1, B1a) is coaxial with the other of the axial bore holes (B1RS; B_SE5, B3a).