Vehicle carrier for a test bench and method for equipping a test bench with such a vehicle carrier

Abstract

Vehicle carrier (10) for a test stand (82) with two longitudinal beams (12, 14), a front cross member (22) and a rear cross member (20) via which the two longitudinal members (12, 14) are connected to each other, two bearing sections (26) which extend on the sides of the longitudinal members (12, 14) facing away from the rear cross member (20), two bearing sections (26) with which the front cross member (22) extends beyond the longitudinal members (12, 14) on both sides, four support elements (36) which are attached to the four bearing sections (26) and serve to receive and fasten a vehicle (48) to the vehicle carrier (10), wherein rollers (38) are arranged at least on the two support elements (36) on the sides of the longitudinal members (12, 14) facing away from the front cross member (22), wherein the two longitudinal beams (12, 14) can be moved telescopically into and out of each other between the two crossbeams (20, 22).

Description

[0001] The invention relates to a vehicle carrier for a test bench, in particular for a powertrain test bench or a vehicle test bench, and to a method for equipping a test bench with such a vehicle carrier.

[0002] Powertrain test benches and vehicle test benches typically have a device for generating a load, particularly a drive, torque, or load torque, which is then transferred to a motor vehicle hub via an adapter device. These adapter devices are typically first attached to the motor vehicle hub, which must first be correctly positioned relative to the test fixture. Since correct positioning of the vehicle hub relative to the test fixture in all three spatial axes is necessary, this is often difficult, especially since the vehicle is no longer drivable after the adapter devices are attached.

[0003] Vehicle carriers have therefore become known that allow a vehicle to be prepared outside the test bench—in particular, for example, the wheels can be removed from the axles—and then transported to the test bench, where the vehicle's axles can be connected to the test bench's corresponding adapter devices. This shortens the setup and dismantling time on the test bench and thus reduces the vehicle's service life, thereby saving costs.

[0004] Such a vehicle carrier is known, for example, from DE 10 2011 120 170 A1. The vehicle carrier has a frame onto which the vehicle is mounted. Rollers or tires are mounted on the frame, allowing the vehicle to be moved without wheels and brought to the test bench, where it can be aligned with the test bench's adapter devices and connected to them. The adapter devices must also be manually aligned with the vehicle axles to ensure correct axle spacing and track widths.

[0005] In addition, WO 2017 / 013173 A1 discloses a test device with a load device that can be moved along a rail in the direction of the vehicle axle. The vehicle is lifted onto a lifting platform, where the adapter device can be connected to the vehicle's wheel hubs. The vehicle can then be vertically aligned with the load device using the lifting platform. However, aligning the vehicle in the direction of travel remains problematic. Accordingly, the vehicle must either be moved to an optimal position before being lifted, or expensive lifting platforms that can be moved in the direction of travel must be used as vehicle supports. Setting up such a test bench is correspondingly complex. Above all, the time required to dismantle such a test bench, for example in an emergency, is far too long.

[0006] Furthermore, a device for detecting maintenance needs on vehicles using artificial intelligence is known from Chinese patent CN212475970 U. This device comprises a base, a movable assembly, a scissor lift, and a pneumatic telescopic rod. The movable assembly is arranged at the bottom of the outer side wall of the base and includes a mounting groove, electric telescopic rods, and universal wheels.

[0007] Finally, document CN113184751 B discloses a lifting device for vehicle maintenance. It comprises a front wheel lifting device and a rear wheel lifting device of similar structure, with the front wheel lifting device integrating a double-scissor telescopic frame. Each of the lifting devices has an adjustable track system connected to each other via telescopic connecting rods.

[0008] The objective is therefore to provide a vehicle carrier for a test bench and a method for equipping a test bench with such a vehicle carrier, which can shorten setup and dismantling times and simplify the connection of the vehicle to be tested to the load device. In particular, the effective usage times of the test bench should be increased and the dimensions of the vehicle carrier should be adaptable to the vehicle's dimensions.

[0009] This object is achieved by a vehicle carrier having the features of claim 1.

[0010] The vehicle carrier for a test bench according to the invention has two longitudinal members that are connected to one another via a front cross member and a rear cross member. The cross members can either be movable relative to the longitudinal members or be permanently attached to them. The rear cross member extends between the longitudinal members. On both sides, at the level of the rear cross member, on the other side of the longitudinal members, there is a bearing section that can be connected either to the longitudinal member or to the cross member. The front cross member has two bearing sections with which it extends beyond the longitudinal members on both sides. The two longitudinal members are arranged accordingly between the bearing sections. A support element is attached to each of the bearing sections. This attachment can be indirect or direct and can also enable guided movement between the support element and the bearing sections.These support elements are used to hold and secure a vehicle to the vehicle carrier. For example, a vehicle wheel can be placed on them or the vehicle axles can be attached to corresponding holders after the wheels have been removed. Rollers are arranged on at least the two support elements of the front cross member, over which the vehicle carrier can be moved and which rest accordingly on the ground. Furthermore, the two longitudinal members can be moved telescopically into and out of each other between the two cross members. Thus, one of the cross members is attached, for example, to a first of the two outer hollow rails of the longitudinal members, while the second cross member is attached to the two inner rails or can be moved on these. This makes it easy to adjust the distance between the support elements in the direction of extension of the vehicle to correctly match the axle distance of the vehicle.With such a vehicle carrier, it is possible to carry out vehicle preparation remotely from the test bench. For example, the adapter devices can be mounted on the wheel hubs and the vehicle can be placed on the support plates with the adapter devices. Or the adapter devices can be attached directly to the vehicle carrier and aligned to the axles by retracting or extending the telescopic rails and sliding the vehicle carrier over the rollers, while the vehicle is on a lifting platform, which is used for vertical alignment to the vehicle carrier. The prepared vehicle can then be lowered and positioned on the test bench using the movable vehicle carrier. This simplifies the connection to the loading device and significantly reduces setup time on the test bench. It also improves the test bench's service life.Furthermore, in an emergency, the vehicle can be removed from the test bench with the vehicle carrier in a very short time, for which only the connection between the load device and the adapter devices needs to be released.

[0011] Preferably, the two longitudinal beams, which can be telescoped into and out of each other, each have an outer hollow rail and an inner rail that can be moved within the outer hollow rail. This creates a positive connection on four sides, allowing only the degree of freedom of retraction and extension in the horizontal direction. Once the rail has been extended or retracted into the hollow rail far enough to ensure the support elements are correctly aligned with the vehicle axles, the vehicle can be lowered accordingly and secured to the support elements or placed on them.

[0012] It is particularly preferred if the support elements are pivotably attached to the bearing sections via a parallel arm system. This parallel arm system allows adjustment to the track width of the vehicle, whereby this adjustment, like the adjustment of the telescopic longitudinal members, takes place before the vehicle is secured due to the pivoting movement. This leaves a certain degree of freedom between the longitudinal members and the support elements, preventing the vehicle axles from becoming distorted relative to one another, particularly during movement of the vehicle carrier, while still ensuring adequate vehicle securing.

[0013] In a preferred embodiment, a fork receptacle is formed between the two longitudinal members on the side of the rear cross member opposite the front cross member. The fork receptacle allows a forklift, such as a so-called "ant" (forklift truck), to be inserted beneath the vehicle carrier, allowing it to be moved by the forklift. During this movement, the vehicle carrier is supported on the ground via the wheels of the forklift and the rollers on the front cross member.

[0014] To easily lift the vehicle carrier at the rear for moving it using the forklift truck, thus making it movable via the forklift truck, the fork support is attached via a pivot axis between the longitudinal beams. This allows the vehicle carrier to be lifted via the pivot axis, while the fork support can remain horizontal due to the required rotation around the pivot axis.

[0015] For this purpose, the axis of rotation is advantageously arranged in an area of ​​the fork support remote from the rear cross member, whereby the main force absorption point is arranged as close as possible to the center of gravity of the fork vehicle.

[0016] Furthermore, a stop for the fork support is provided on the rear cross member or on an inner side of the longitudinal members, which restricts the rotation of the fork support around the rotation axis. This prevents the vehicle carrier from being lifted so far that the fork support, in the area remote from the rotation axis, is rotated so far toward the vehicle underbody that the fork support touches the underside of the vehicle, which could cause damage to the underside.

[0017] Rollers are preferably also provided on the support elements of the rear cross member. These serve, on the one hand, to partially absorb the force when moving with the forklift truck and, on the other hand, to facilitate the movement of the vehicle carrier and the support elements without the forklift truck being retracted into the fork receptacle.

[0018] The rollers are preferably arranged at the end of the support elements remote from the parallel arm system, which ensures accessibility to the rollers even after the vehicle has been placed on the ground.

[0019] It is particularly advantageous if an adapter device is arranged on each of the support elements, which serves to connect a wheel hub of a vehicle to a load device. This design allows the vehicle to be fully pre-equipped outside of the test bench. The wheels can be removed and the wheel hubs of the vehicle axles connected to the adapter devices, so that only the connection of the adapter devices to the load device on the test bench needs to be carried out. Subsequent alignment of the adapter devices to the vehicle on the test bench is therefore completely eliminated, which significantly reduces setup and dismantling times on the test bench. In an emergency, the vehicle can be removed from the test bench very quickly, as it only needs to be disconnected from the load device.

[0020] Furthermore, it is advantageous if the adapter devices on the support elements can be aligned to the vehicle axle using leveling screws. Manufacturing tolerances or deformations over time require a leveling option at the setup station or finally on the test bench to ensure horizontal alignment of the vehicle support and free movement of the vehicle on the test bench. Correct adjustment of the leveling screws can reliably prevent distortion of the vehicle axles or chassis relative to the adapter devices. Such adjustment can also be performed after the wheel hubs have been attached to the adapter devices to prevent damage to the vehicle.

[0021] In addition, the adapter devices preferably each have a lower bearing plate to which ball rollers are attached, allowing the bearing plate to rest on the respective support element. This allows for slight movements of the adapter device on the support plate in two axial directions during the test procedure. This also facilitates the connection of the adapter device to the load device, as minor adjustments to the axes relative to each other can be easily made.

[0022] Furthermore, the adapter devices are arranged on the support elements in a lockable manner, so that slipping of the adapter devices with the vehicle on the support elements during movement is prevented.

[0023] Furthermore, it is advantageous if the support elements are interchangeable. This allows the height of the wheel hub to be adjusted to the axle height of the vehicle, in which the support elements have different heights.

[0024] In a preferred embodiment, the cross members are movable along the longitudinal members and can be locked in their final position. This provides an additional option for adjusting the support elements according to the vehicle's wheelbase.

[0025] An additional option for adjusting the distance between the support elements in the direction of extension of the longitudinal members, and thus to the vehicle's axle spacing, is achieved by sliding the front cross member onto the longitudinal members in two positions rotated by 180° around a vertical axis. In the first position, the support elements point away from the rear cross member and in the second position, they point toward the rear cross member. This adjustment allows the axle spacing to be adjusted to particularly small distances.

[0026] This problem is also solved by a method for equipping a test bench with such a vehicle carrier. In this method, a vehicle is first raised via a permanently installed lifting platform, and then the vehicle carrier is placed underneath the vehicle. The vehicle carrier is then adjusted to match the track width and axle spacing of the vehicle. This is done by rotating the support elements via the parallel arm system for the vehicle's track width, and by extending or retracting the telescopic longitudinal beams depending on the rotation of the support elements.Afterwards or beforehand, the vehicle is lowered using the lifting platform to the appropriate height relative to the adapter devices and the adapter devices are mounted on the vehicle wheel hubs so that the vehicle is now fully supported by the vehicle carrier and can be lowered completely using the lifting platform. The forks of the forked vehicle can now be moved under the fork holder and raised slightly at the rear so that the vehicle carrier with the vehicle can be moved over the forked vehicle to the test bench. On the test bench, the vehicle is aligned accordingly and the adapter devices on the test bench are connected to a load device for testing. Once the tests have been carried out, the vehicle can be driven back from the test bench to the setup area, where it can be driven back to the lifting platform and detached from the adapter devices and thus from the vehicle carrier.This process significantly reduces cycle times on the test bench, as almost all of the setup time is no longer carried out on the test bench but at the setup station.

[0027] This provides a vehicle carrier for a test bench and a method for equipping a test bench with such a vehicle carrier. This significantly reduces setup times on the test bench, as the pre-equipped vehicle can be easily moved. Adapting the vehicle carrier to the specific vehicle to be tested is very simple and quick. For the first time, a vehicle can be tested directly on a vehicle carrier, which also allows the vehicle to be removed from the test bench very quickly in an emergency.

[0028] A non-limiting embodiment of a vehicle carrier according to the invention for a test bench is described below, as is the method for equipping a test bench with such a vehicle carrier, with reference to the figures. Fig. 1 shows a vehicle carrier according to the invention in perspective view Fig. 2 shows a supporting element of the vehicle according to the invention from Fig. 1 in perspective view. Fig. 3 shows an alternative supporting element of the vehicle according to the invention Fig. 1 in perspective view. Fig. 4 shows the vehicle carrier on the lifting platform at the setup station with the vehicle and a forklift truck. Fig. 5 shows a front view of the vehicle carrier with the vehicle on the test bench.

[0029] The one in the Fig. The vehicle carrier 10 according to the invention shown in Figure 1 comprises a first longitudinal member 12 and a second longitudinal member 14, which are aligned parallel to one another and each have an outer hollow rail 16 in a rear region and an inner rail 18 displaceable within the outer hollow rail 16 in the front region, whereby the length of the longitudinal members 12, 14 is variably adjustable. The terms "rear" or "front" refer to a common direction of movement of the vehicle carrier 10 and serve to facilitate understanding without having a restrictive effect.

[0030] The two longitudinal members 12, 14 are connected to each other in the area of ​​the outer hollow rail 16 by a rear cross member 20 and in the area of ​​the inner rail 18 by a front cross member 22.

[0031] The rear cross member 20 consists of three parts that are attached to the outer hollow rail of the longitudinal members 12, 14. A central cross member section 24 is arranged between and attached to the two longitudinal members 12, 14, while bearing sections 26 extend perpendicular to the longitudinal members 12, 14 from the outer sides of the two longitudinal members 12, 14. These sections have two bearing pins 28 on their side facing away from the front cross member 22 for supporting a push rod eye 30 of a push rod 32. The two push rods 32 are arranged such that they form a parallel arm system 34, with the push rods 32 also having a push rod eye 30 at their opposite ends, into which a bearing pin 28 projects. The bearing pin 28 is attached in a corresponding opening at a front end of a support element 36 opposite the rear end of the bearing section 26.The distances and the angular offset of the bearing bolts 28 to the longitudinal beams 12, 14 on the support element 36 correspond to the angular offset and the distances of the bearing bolts 28 to the longitudinal beams 12, 14 on the bearing section 26. The two push rods 32 are also of the same length, so that the parallel arm system 34 is formed, whereby the support element 36 can be rotated about the bearing section, but its angular position is maintained during rotation to the longitudinal beams 12, 14.

[0032] At each end 37 facing away from the parallel arm system 34, a roller 38 is attached to the support elements 36 of the rear cross member 20, with which the rear cross member 20 rests on the ground on both sides. The rollers 38 are correspondingly facing a rear end of the support elements 36 and the vehicle carrier 10.

[0033] The front cross member 22 consists of a total of five parts fastened to one another. A central cross member section 40 is arranged between the two longitudinal members 12, 14 and is fastened on each side to a square tube 42, which is pushed onto the inner rails 18 of the two longitudinal members 12, 14 and is correspondingly mounted on the inner rail 18, for which purpose the inner cross section of the square tubes 42 corresponds to the outer cross section of the inner rails 18. On the outward-facing side, these square tubes 42 are also each connected to a bearing section 26 on the front cross member 22, which essentially correspond to the bearing sections 26 of the rear cross member 20, but point in the opposite direction, so that the support elements 36 of the front cross member 22, which are fastened to the bearing sections 26 via the known parallel arm system 34, also point in the other direction, i.e., forward.The bearing sections 26 of the front cross member 22 also extend perpendicular to the longitudinal members 12, 14 and are connected to the bearing sections via the two parallel connecting rods 32. Rollers 38 are also attached to the forward-facing ends of the support elements 36 of the front cross member 22, which rest on the ground, so that the vehicle carrier 10 can be moved via the four rollers 38 of the rear and front support elements 36.

[0034] An adapter device 44 is arranged on each of the support elements 36. This adapter device is connected to a wheel hub 46 of a vehicle 48 and serves as an intermediate piece between a load device 50 for applying a torque to the vehicle axles 66 via the wheel hubs 46.

[0035] This adapter device 44 has, as shown in the Fig. 2 and Fig. 3, a lower bearing plate 52 which carries a bearing block 54 on which a rotatable receptacle 56 is mounted, which can be connected to the wheel hub 46 of the vehicle 48 and on the opposite side to a drive axle 58 of the load device 50, as shown in Fig. 5 is shown schematically.

[0036] On the lower side of the bearing plate 52, with which the adapter device 44 is placed on the support element 36, several ball rollers (not visible in the figures) are formed, which allow the adapter device 44 to be slightly displaced on the support elements 36. In this way, internal stresses on the chassis caused by fastening the vehicle 48 to the adapter devices 44 and thus to the vehicle carrier 10 can be prevented, since the adapter devices 44 can align themselves at least slightly. Stresses during tests can also be prevented in this way. The freedom of movement is restricted by stop elements 60, which are arranged in front of and behind the adapter devices 44 on the support elements 36, both with regard to axial displacement and with regard to rotation about the axis of rotation of the adapter devices 44.In addition, locking levers 62 are formed on the stop elements 60, by means of which the adapter devices can be completely fixed on the support elements 36 in order to prevent the adapter devices 44 from becoming detached from the vehicle carrier 10 during the movement of the vehicle 48.

[0037] Furthermore, four leveling screws 64 are arranged on each support element 36, via which the rotational axes of the adapter devices 44 can be precisely aligned with the vehicle axles 66 to avoid stresses in the chassis. These leveling screws 64 raise or lower a support plate 67 of the support element 36 below the adapter device 44 at its corners and thus align it, thereby compensating for any wear or manufacturing and assembly tolerances.

[0038] At the rear end of the longitudinal members 12, 14 and thus on the side of the rear cross member 20 opposite the front cross member 22, there is a fork receptacle 68 for a forklift truck 70. This fork receptacle has two lifting rails 72 under which the forks of the forklift truck 70 can be retracted. The entire fork receptacle 68 is connected to the longitudinal members 12, 14 via a pivot axis 74. This pivot axis 74 is located in the area 76 of the fork receptacle 68 remote from the rear cross member 20, so that the fork receptacle 68 is rotatable relative to the longitudinal members 12, 14 about this pivot axis 74. Accordingly, when the fork of a forklift truck 70 is pushed under the fork receptacle 68 and the fork is subsequently raised, the longitudinal members 12, 14 are raised in the rear area via the pivot axis 74. Here, the fork holder 68 maintains its approximately horizontal position, while the longitudinal members 12, 14 are slightly rotated.To prevent the fork mount 68 from rotating from below against a vehicle floor 78 during this movement, this relative rotation is prevented by a stop 80 for the fork mount 68, which in the present embodiment is formed on the rear side of the rear cross member 20. Accordingly, the lifting of the vehicle carrier 10 with the vehicle 48 arranged thereon is restricted.

[0039] The preparation of the vehicle 48 for a test bench 82 takes place outside the test bench 82, as in Fig. 4, the vehicle 48 is first driven to a known, permanently installed lifting platform 84 at a preparation station and lifted by the lifting platform 84. The vehicle wheels can then be removed and the vehicle lowered until the vehicle axles 66 are at the same height as the axes of rotation of the adapter devices 44. By extending and retracting the telescopic longitudinal members 12, 14 and simultaneously pivoting the support elements 36 and thus the adapter devices 44 about the parallel arm system 34, the vehicle carrier 10 is subsequently aligned with respect to the vehicle 48 with regard to its track width and its axle distance such that the axes of rotation of the adapter devices 44 are arranged on the vehicle axles 66 and the adapter devices 44 are positioned directly opposite the wheel hubs 46.The leveling screws 64 are used to precisely align the rotational axes of the adapter devices 44 to the vehicle axles 66. The adapter devices 44 are then connected to the wheel hubs 46, whereby the vehicle 48 is completely supported by the vehicle carrier 10 and the lifting platform 84 can be lowered accordingly.

[0040] Subsequently, the forked vehicle 70 can be driven with its fork under the fork holder 68 and the fork slightly raised after the adapter devices 44 have been completely fixed to the vehicle carrier 10 via the locking levers 62. Now, the vehicle carrier 10 is moved by means of the forked vehicle 70 into the test stand 82, which is in Fig. 5, and aligned with a drive axle 58 of a load device 50 by means of the vehicle carrier 10. The adapter device 44 is then connected to the load device 50. The locking levers 62 are released again so that a certain mobility of the adapter devices 44 remains. The chassis tests can then be carried out while the vehicle 48 remains on the vehicle carrier 10. After the test is completed or in the event of an emergency, the vehicle 48 is detached from the load device 50 and removed from the test bench 82 by means of the vehicle carrier 10 and the fork vehicle 70. Disarmament is essentially the same as the arming of the vehicle 48, but in the reverse order.

[0041] With this vehicle carrier 10, even vehicles 48 with particularly high hub heights can be tested without any problems, since the support elements 36 can be easily detached from the rest of the vehicle carrier 10 via the parallel arm system 34 and then replaced by support elements 36 with a higher hub height, as shown in Fig. 3 are replaced.

[0042] With such a vehicle carrier 10, the entire vehicle pre-equipment, with the exception of the connection to the load device, can be performed outside the test bench, and the vehicle can then be moved into the test bench using the vehicle carrier. This results in better utilization of the test benches, as setup and dismantling times on the test bench are reduced to a minimum. Particularly small axle distances can also be achieved by rotating the front cross member around a vertical axis.

[0043] It should be clear that the invention is not limited to the described embodiment, but a variety of design modifications to the movable vehicle carrier are possible. For example, a different force application device can be provided instead of the fork mount if a different transfer vehicle is to be used. The cross members can also be manufactured in one piece or have a different pitch.

Claims

[1] Vehicle carrier (10) for a test bench (82) with two longitudinal beams (12, 14), a front cross member (22) and a rear cross member (20) via which the two longitudinal members (12, 14) are connected to one another, two bearing sections (26) which extend on the sides of the longitudinal members (12, 14) facing away from the rear cross member (20), two bearing sections (26) with which the front cross member (22) extends beyond the longitudinal members (12, 14) on both sides, four support elements (36) which are fastened to the four bearing sections (26) and serve to receive and fasten a vehicle (48) to the vehicle carrier (10), wherein rollers (38) are arranged at least on the two support elements (36) which are arranged on the sides of the longitudinal members (12, 14) facing away from the front cross member (22), wherein the two longitudinal beams (12, 14) can be moved telescopically into and apart from one another between the two cross beams (20, 22). [2] Vehicle carrier (10) for a test bench (82) according to claim 1, characterized by that the two longitudinal beams (12, 14) which can be moved telescopically into and apart from one another each have an outer hollow rail (16) and an inner rail (18) which can be moved in the outer hollow rail (16). [3] Vehicle carrier (10) for a test bench (82) according to claim 1 or 2, characterized by that the support elements (36) are pivotably attached to the bearing sections (26) via a parallel arm system (34). [4] Vehicle carrier (10) for a test bench (82) according to one of the preceding claims, characterized by that on the side of the rear cross member (20) opposite to the front cross member (22) a fork receptacle (68) is formed between the two longitudinal members (12, 14). [5] Vehicle carrier (10) for a test bench (82) according to claim 4, characterized by that the fork holder (68) is fastened between the longitudinal members (12, 14) via a rotation axis (74). [6] Vehicle carrier (10) for a test bench (82) according to claim 5, characterized by that the axis of rotation (74) is arranged in a region (76) of the fork holder (68) remote from the rear cross member (20). [7] Vehicle carrier (10) for a test bench (82) according to one of claims 5 or 6, characterized by that a stop (80) for the fork receptacle (68) is formed on the rear cross member (20) or on an inner side of the longitudinal members (12, 14), by means of which the rotation of the fork receptacle (68) about the axis of rotation (74) is restricted. [8] Vehicle carrier (10) for a test bench (82) according to one of the preceding claims, characterized by that rollers (38) are formed on the supporting elements (36) of the rear cross member (20). [9] Vehicle carrier (10) for a test bench (82) according to one of claims 3 to 8, characterized by that the rollers (38) are arranged at the end (37) of the support elements (36) remote from the parallel arm system (34). [10] Vehicle carrier (10) for a test bench (82) according to one of the preceding claims, characterized by that an adapter device (44) is arranged on each of the support elements (36), which serves for the connection between a wheel hub (46) of a vehicle (48) and a load device (50). [11] Vehicle carrier (10) for a test bench (82) according to claim 10, characterized by that the adapter devices (44) on the support elements (36) can be aligned to the vehicle axis (66) via leveling screws (64). [12] Vehicle carrier (10) for a test bench (82) according to one of claims 10 or 11, characterized bythat the adapter devices (44) each have a lower bearing plate (52) to which ball rollers are fastened, with which the bearing plate (52) rests on the respective support element (36). [13] Vehicle carrier (10) for a test bench (82) according to one of claims 10 to 12, characterized by that the adapter devices (44) are arranged so as to be lockable on the support elements (36). [14] Vehicle carrier (10) for a test bench (82) according to one of the preceding claims, characterized by that the support elements (36) are interchangeable. [15] Vehicle carrier (10) for a test bench (82) according to one of the preceding claims, characterized by that the cross members (20, 22) are displaceable on the longitudinal members (12, 14) and can be fixed in their final position. [16] Vehicle carrier (10) for a test bench (82) according to claim 13 or 14, characterized by , that the front cross member (22) can be pushed onto the longitudinal members (12, 14) in two positions rotated by 180° around a vertical axis, so that that the support elements (36) point away from the rear cross member (20) in the first position and point towards the rear cross member (20) in the second position. [17] Method for equipping a test bench (82) with a vehicle carrier (10) according to one of claims 10 to 16, in which a vehicle (48) is lifted via a permanently installed lifting platform (84), the vehicle carrier (10) is placed under the vehicle (48), the vehicle carrier (10) is adjusted by rotating the support elements (36) via the parallel arm system (34) with respect to its track width and by retracting or extending the telescopic longitudinal beams (12, 14) with respect to its axle distance corresponding to the track width and the axle distance of the vehicle (48), the adapter devices (44) are mounted on the wheel hubs (46) of the vehicle (48), the vehicle (48) is completely lowered via the lifting platform (84), the vehicle carrier (10) with the vehicle (48) is moved to the test stand (82) via a forklift truck (70), the adapter devices (44) on the test bench (82) are connected to a load device (50) for testing.

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