Vehicle axle for a motor vehicle

Abstract

Vehicle axle for a motor vehicle, wherein two electric drives (5, 6) for driving the wheels of an axle are arranged in a frame construction (1), wherein the frame construction (1) has at least one cross member (4) which is connected at its ends to longitudinal members (2, 3), and wherein the two electric drives (5, 6) are arranged parallel to each other with their axes of rotation transverse to the direction of travel, characterized in that the at least one cross member (4) runs between the two electric drives (5, 6) and bearing points (7) for the electric drives (5, 6) are arranged on the at least one cross member (4).

Description

[0001] The invention relates to a vehicle axle for a motor vehicle of the type defined in more detail in the preamble of claim 1.

[0002] A vehicle axle of this type is described in US 1,251,749 A. A similar design for a vehicle axle for a motor vehicle is also known from GB 156,398 A and US 2003 / 0132039 A1.

[0003] DE 10 2014 102 541 A1 shows a vehicle axle in which two electric drives are arranged one behind the other in a frame construction with two crossbeams, transverse to the direction of travel.

[0004] DE 10 2010 017 966 A1 shows and describes a vehicle axle with two electric drives arranged side by side and connected via a gearbox with drive shafts to drive two vehicle wheels.

[0005] The present invention is based on the objective of creating a vehicle axle of the type mentioned at the outset, in which the electric drives are arranged in a space-saving manner in a frame construction.

[0006] According to the invention, this problem is solved by the features mentioned in claim 1.

[0007] By utilizing the space between the drives, which are arranged at least approximately parallel to each other, a space-saving arrangement is created, wherein, according to the invention, bearing points for the electric drives are arranged on the at least one crossbeam. In this way, a very flat suspension for the two drives is obtained.

[0008] In an advantageous embodiment according to the invention, the two drives are elastically suspended in the frame construction, which has the cross member according to the invention and longitudinal members arranged at its ends.

[0009] The bearing points arranged on at least one crossbeam can be connected to the drive housings of the electric drives. Likewise, connecting the bearing points to the transmission gearboxes of the electric drives is also possible, either additionally or alternatively.

[0010] In one embodiment according to the invention, the entire frame structure can be connected to the body of the motor vehicle via elastic bearing points. Of course, a rigid mounting of the frame structure is also possible.

[0011] Furthermore, it may also be provided that at least one crossbeam is arranged in the vertical direction (z-axis of the motor vehicle) below the two electric drives.

[0012] This also results in a space-saving arrangement.

[0013] Advantageous further developments and designs result from the exemplary embodiment described below in principle with reference to the drawing.

[0014] It shows: Fig. 1 a perspective view of the vehicle axle according to the invention; and Fig. 2 A view of the vehicle axis perpendicular to the direction of travel of the motor vehicle.

[0015] The axle of a motor vehicle is provided with a frame structure 1, which has two longitudinal members 2 and 3. The longitudinal members 2 and 3 are each connected to the ends of a cross member 4. The cross member 4 is located in a space between two parallel electric drives 5 and 6. The two electric drives 5 and 6 are arranged such that their axes of rotation lie in the transverse direction of the vehicle.

[0016] The two drives 5 and 6 have multiple bearing points. For example, 4 bearing points 7 are arranged on the crossbeam for this purpose, which can be connected either to the drive housings of the drives 5 and 6 and / or to transmission gearboxes 8 for the two drives 5 and 6.

[0017] Additionally, bearing points can be arranged on the longitudinal beams 2, 3 (not shown).

[0018] The entire frame structure 1 can be suspended from the body of the vehicle via elastic bearings 9, which are arranged at the ends of the longitudinal beams 2, 3.

[0019] Of course, it is also possible to rigidly connect the frame construction 1 to the body without intermediate coupling of bearing points, for example by means of screws.

[0020] The two longitudinal beams 2, 3 have consoles 10 as body-side attachment points for suspension control arms.

[0021] Of course, within the scope of the invention it is also possible to arrange a further crossbeam instead of the single crossbeam 4 shown. This could, for example, be arranged in the longitudinal direction of the vehicle between an electric drive 5 or 6 and an elastic bearing 9.

Claims

[1] Vehicle axle for a motor vehicle, wherein two electric drives (5, 6) for driving the wheels of an axle are arranged in a frame structure (1), wherein the frame structure (1) has at least one cross member (4) which is connected at its ends to longitudinal members (2, 3), and wherein the two electric drives (5, 6) are arranged parallel to each other with their axes of rotation transverse to the direction of travel, characterized by , that the at least one crossbeam (4) runs between the two electric drives (5,6) and bearing points (7) for the electric drives (5,6) are arranged on the at least one crossbeam (4). [2] Vehicle axle according to claim 1, characterized by , that the bearing points (7) for the electric drives (5,6) are connected to the drive housings of the electric drives (5,6). [3] Vehicle axle according to claim 1, characterized by, that the bearing points (7) are connected to transmission gears (8) for the electric drives (5,6). [4] Vehicle axle according to claim 1, characterized by that the electric drives (5,6) are elastically suspended in the frame structure (1). [5] Vehicle axle according to any one of claims 1 to 4, characterized by , that additional bearing points (9) are arranged on the longitudinal beams (2,3). [6] Vehicle axle according to any one of claims 1 to 4, characterized by , that the frame structure (1) is connected to the body of the motor vehicle via elastic bearing points (9). [7] Vehicle axle according to any one of claims 1 to 4, characterized by , that the frame structure (1) is connected to the body via a rigid connection. [8] Vehicle axle according to any one of claims 1 to 7, characterized by , that at least one crossbeam (4) is arranged in the vertical direction below the two electric drives (5,6).

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