EP4323743A1 - Prüfstand für einen antriebsstrang eines kraftfahrzeugs - Google Patents
Prüfstand für einen antriebsstrang eines kraftfahrzeugsInfo
- Publication number
- EP4323743A1 EP4323743A1 EP22722158.7A EP22722158A EP4323743A1 EP 4323743 A1 EP4323743 A1 EP 4323743A1 EP 22722158 A EP22722158 A EP 22722158A EP 4323743 A1 EP4323743 A1 EP 4323743A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- storage module
- designed
- motor vehicle
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- 238000010276 construction Methods 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
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- 230000001419 dependent effect Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/16—Rotary-absorption dynamometers, e.g. of brake type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Definitions
- the invention relates to a test bench for a drive train of a motor vehicle according to the preamble of claim 1.
- test benches or drive train test benches for testing motor vehicle drives or complete motor vehicle drive trains are known from the prior art.
- Such test benches are usually used for quality control in order to detect malfunctions in drive trains at an early stage through a series of stress tests. Typical malfunctions are caused, for example, by components that are subject to play, e.g. As gears, synchronizer rings, Synchronkör by, multi-plate clutch discs and shafts that can be deflected and excited to vibrate.
- the acoustic behavior and the shift quality are usually also checked.
- test benches are also used in the development and continuous improvement of motor vehicle drive trains.
- DE 43 28 537 C2 describes a transmission test bench with a first servomotor serving as a drive motor and a second servomotor serving as a brake motor.
- the drive motor is connected via a clutch to the drive shaft of a motor vehicle transmission to be tested and its speed is controlled by a PC, among other things, so that any speed curves can be simulated.
- the brake motor is connected via another clutch to an output shaft of the motor vehicle transmission to be tested.
- the speed of the brake motor is also controlled via the PC.
- the speed curves simulated by the PC are speed curves measured in real road tests.
- DE 10328 461 A1 discloses a vehicle test bench with a loading machine for each drivable wheel of a motor vehicle.
- the loading machines are connected directly, for example via wheel bolts, or indirectly, for example via a belt drive, to the rims of the motor vehicle wheels, so that the Loading machines can both drive and brake the drive train.
- the vehicle test stand of DE 10328461 A1 also includes a frame construction, via which the motor vehicle and the loading machines can be raised and aligned with one another. During the testing process, the motor vehicle is completely supported by the frame construction, so that the vehicle wheels do not have any contact with the ground.
- the known motor vehicle test benches are disadvantageous in that they require a comparatively large installation area and, above all, rely on a complex and expensive mechanical support structure, especially if they are intended for testing a drive train already installed in the motor vehicle.
- the invention relates to a test stand for a drive train of a motor vehicle, comprising at least one load motor with a motor housing and a motor shaft, at least one torque sensor and at least one switch-off module, the motor shaft being designed to be drivingly connected to a hub of the motor vehicle and the Torque sensor is designed to detect a torque generated by the engine.
- the test stand according to the invention is characterized in that an axial side of the engine housing facing the hub and the at least one parking module are designed to be connected to one another in a torque-proof manner and that the torque sensor is arranged in the parking module in such a way that it can internal to radially external torque detected.
- the invention thus describes a test stand which is suitable for examining a drive train of a motor vehicle.
- the motor vehicle can equally be a motor vehicle driven by an electric motor as well as a conventionally driven motor vehicle.
- the test stand comprises at least one load motor with a motor housing and a motor shaft.
- the load motor is advantageously an electric motor. Electric motors are comparatively compact, have a wide range of speeds, especially compared to internal combustion engines, and advantageously have the maximum torque over a wide range of speeds. Only when the so-called "corner point" is reached in the high speed range does the torque decrease indirectly proportional to the further increasing speed due to the increasing field weakening.
- the at least one load motor is designed as a permanently excited synchronous motor.
- the synchronous motor particularly advantageously includes a comparatively large number of magnetic pole pairs, for example twelve or more magnetic pole pairs.
- Such synchronous motors are also known as so-called synchro-torque motors. This results in the advantage that the loading motor can be made comparatively compact and short, which consequently leads to the center of gravity of the loading motor being arranged very close to the chassis of the motor vehicle.
- Each load motor is advantageously assigned its own inverter.
- the inverter has a three-phase design, for example.
- the at least one loading motor in turn comprises a motor housing, via which the loading motor can be placed, for example, on a base or a device provided for this purpose.
- the motor housing is also designed to enable the load motor to be arranged or supported, for example via its so-called a-side or b-side.
- the motor housing can have water cooling, for example.
- the at least one loading motor also includes a motor shaft, which provides the torque generated by the loading motor and the speed generated by the loading motor.
- the motor shaft can be drivingly connected to one of the hubs of the wheels of the motor vehicle, so that torque and speed can be introduced from the motor shaft into the hub.
- the torque and the speed together represent mechanical power with which the drive train to be tested can be loaded. The torque and the speed therefore represent the load on the drive train occurring during the test.
- a drive connection is understood to mean a mechanical connection for the transmission of mechanical power, with the torque and the speed being able to be converted as part of the transmission from the load motor to the hub.
- the load motor provides, for example, a first speed and a first torque, with the first speed and the first torque representing the first power.
- the first torque can be converted to the second torque and the first speed can be converted to the second speed.
- the first performance remains unchanged by the transfer.
- the definition that the motor shaft is drivingly connected or can be connected to the hub does not specify that there must be a direct mechanical connection, in particular no non-rotatable connection, between the motor shaft and the hub. Rather, the driving connection can also include a gearbox or an individual gear ratio or other intermediate elements.
- the test bench also includes at least one torque sensor, the torque sensor being designed to detect a torque generated by the load motor.
- the torque sensor preferably comprises one or more force-sensitive elements, in particular one or more strain gauges, which first of all exert a force acting on the force-sensitive element or on the several force-sensitive elements Elements acting forces recorded. The torque acting in each case can then be determined from the detected force or forces via the geometry of the torque sensor.
- an axial side of the motor housing facing the hub and the at least one storage module are designed to be connected to one another in a rotationally fixed manner via a connection position provided for this purpose.
- the axial side of the motor housing facing the hub is preferably the so-called a-side of the motor housing.
- the at least one storage module and the motor housing can be connected to one another in a rotationally fixed manner via connec- tion means provided for this purpose, for example a flange connection.
- An axial plug-in connection is also conceivable, which ultimately essentially supports the torque, but is largely movable axially.
- the parking module is advantageously mounted on the hub of the motor vehicle instead of a vehicle wheel or like a driving wheel.
- the at least one torque sensor is arranged in the parking module in such a way that it detects a torque acting in the parking module from radially inside to radially outside.
- the at least one torque sensor can advantageously be arranged radially between an outer circumference of the at least one storage module and the connection position of the at least one loading motor to the storage module.
- the at least one torque sensor is particularly preferably designed in the form of a ring and is designed in particular as a supporting component of the storage module.
- the at least one torque sensor can also be designed like spokes. In the latter case, the torque sensor is generally not a supporting component of the storage module but can be arranged on the storage module by means of an adhesive, for example.
- the at least one torque sensor is connected to the storage module in a rotationally fixed manner via the connection position. Since the at least one load motor initiates a speed and a torque in the hub of the motor vehicle, it must support the torque introduced via its connection to the parking module—that is, at the connection position—against the parking module. This connection position is naturally radially inside the outer circumference of the storage module. Since the torque to be supported corresponds to the torque introduced into the drive train, the torque introduced into the drive train can be easily detected via the torque sensor.
- the at least one torque sensor is also not located in the torque flow from the load motor to the hub, this mechanical connection, which is already short and very stiff, can advantageously be stiffened even further.
- the load motor - like the motor vehicle to be tested - is supported by its suspension - via the storage module, which in turn is set up on an underground and there supports the weight force acting on it.
- the substrate can have a particularly high coefficient of friction in relation to the parking module, in order to also enable the transmission of high torques from the load motor to the parking module.
- the adhesion of the storage module to the ground can be increased even further by the storage module being clamped over its running surface, for example by means of a tension belt whose ends are firmly connected to the ground.
- the storage module can also be arranged on the ground, for example by means of a bolt which is arranged in the ground and penetrates the storage module radially from the outside.
- the invention thus describes a very compact test stand for testing a drive train of a motor vehicle, in which the load motor can be connected directly to a hub of the motor vehicle without an intermediate shaft.
- this also results in the advantage that the required test space is much smaller in comparison and, in particular, no bulky and expensive test stand or corresponding frame construction is required to hold the motor vehicle and the load motors and to align them with one another. In particular, there is no longer any need for a complex and time-consuming alignment or adjustment of the drive train or the motor vehicle to the test bench.
- Another important advantage of the invention is that the testing process using the test stand according to the invention leaves the chassis properties of the motor vehicle to be tested largely unaffected, since the motor vehicle to be tested is supported exclusively by the chassis during the testing process. This means that chassis-specific properties such as deflection behavior, steering behavior and similar properties can be tested very realistically.
- the test stand for each drivable wheel of the motor vehicle includes a load motor, a torque sensor and a parking module.
- the at least one storage module has a concentric opening through which the hub is accessible from a side facing the at least one loading motor.
- the concentric opening is advantageously at least large enough for the hub of the motor vehicle to be completely open.
- the motor shaft can be connected directly and non-rotatably to the hub, for example.
- the parking module with the concentric opening is, for example, non-rotatably arranged on the axial side of the loading motor facing the hub of the motor vehicle, so that the motor vehicle is supported via its hub on the loading motor and the loading motor is supported via the connection position on the parking module, which in turn ultimately stands up on the ground.
- the at least one storage module has a radial outer part and a radial inner part, with the inner part being held rotatably in the outer part, with the inner part being designed to be non-rotatably connected to the hub of the motor vehicle to be and wherein the outer part is designed to be rotatably connected to the hub facing axial side of the motor housing.
- the at least one storage module is designed in two parts, with the radial inner part of the storage module being rotatable relative to the radial outer part of the storage module, so that in this case, too, the at least one loading motor is non-rotatably connected to the storage module, namely the outer part can.
- the at least one loading motor can also be supported on the control module in this case.
- the storage module can in this case not only be connected to the hub via the loading motor, but also be connected directly to the hub in a rotationally fixed manner via the inner part which can rotate relative to the outer part.
- the at least one torque sensor is advantageously arranged in the radial outer part.
- the torque and the speed can be passed on to the hub of the motor vehicle via the inner part, while the supporting torque of the at least one load motor is detected by the torque sensor in the outer part.
- the torque sensor is arranged radially between the connection position of the loading motor to the parking module and the outer circumference of the parking module.
- the motor shaft can be connected to the inner part in a rotationally fixed manner. Since the inner part is non-rotatably connected to the hub, a load provided by the load motor can be transmitted via the motor shaft to the inner part of the parking module and from there it can be fed into the drive train of the motor vehicle via the hub.
- the blocking can be done, for example, by moving bolts or carriages provided for this purpose or by positioning a clamping element, so that a relative movement of the outer part to the inner part is blocked.
- a correspondingly lockable storage module can be mounted and then the motor vehicle can drive within the proving grounds, for example in a spacious hall, from the site of storage module assembly to the site of the test.
- the at least one storage module has an annular projection which is designed to connect the at least one loading motor to the at least one storage module in a torque-proof manner.
- the ring-shaped projection thus represents the connection position of the loading motor to the parking module
- the annular projection preferably has connection means provided for connection, such as screw connections, axial bolts or pins, which interact with corresponding connection means of the motor housing.
- annular projection leads to a spacing of the load motor from the hub that is predetermined by the axial length of the projection, a compensating coupling can be arranged axially between the motor shaft and the hub, for example, with the help of which any angular and radial offsets that may exist can be compensated for be able.
- the annular projection then radially encloses the compensating clutch.
- a pneumatic tire to be arranged on a radial outer circumference of the at least one storage module.
- the parking module has a supporting behavior on the ground, which largely corresponds to the supporting behavior of a supporting behavior that occurs during normal driving operation of the motor vehicle.
- a pneumatic tire is preferably arranged on the parking module, which is also permissible for operation of the motor vehicle when the motor vehicle is on the road.
- a rubber coating to be arranged on a radial outer circumference of the at least one storage module.
- the rubber coating also enables a comparatively realistic support of the storage module on the ground, but in contrast to the pneumatic tire does not require a separate selection and installation of a suitable pneumatic tire on the storage module. Instead, the rubber coating can be arranged firmly and permanently on the storage module.
- the test bench also includes at least one motor support, which is designed to support a tilting moment of the at least one load motor.
- the motor support can be arranged below the motor housing, for example, in the region of the axial side of the motor housing facing away from the hub, preferably the b-side of the motor housing, in order to support the load motor from below. It is also conceivable to bring the motor support in such a way that it holds the load motor from above, ie that the load motor depends on the motor support. In the latter case, for example, the motor support can be designed inexpensively and easily as a cable, in particular as a wire cable.
- the motor support holds the loading motor from above, it can in particular comprise a compensation element which is arranged in the power flow and which, on the other hand, contains a prestressable spring.
- a tilting moment to be compensated for or a force to be compensated for, corresponding to the tilting moment can advantageously be set by means of an adjustable prestressing of the spring. This can ensure that there is no overcompensation of the tilting moment.
- the test bench also comprises at least one support ram, the support ram being adjustable in three spatial directions and/or rotatable about three axes and the support ram being designed to support the storage module or that the test bench further comprises at least one hexapod-like actuator device, the actuator device being designed to adjust the hub in three spatial directions and/or to rotate it about three axes.
- Appropriate actuation of the supporting plunger for example along a vertical axis, can thus simulate uneven ground during a journey of the motor vehicle.
- almost all other influences of a possible subsoil can be simulated via the support stamp, in particular also in connection with steering movements of steerable wheels of the motor vehicle.
- the hexapod-like actuator device preferably acts on the hub of the motor vehicle and is also able to simulate uneven ground during a journey as well as almost all other influences of a possible underground.
- the hexapod-like actuator device comprises six actuators, which can be designed as hydraulic cylinders, for example. This enables a particularly realistic test of the drive train.
- FIG. 1 shows, by way of example and diagrammatically, a test bench known in the prior art for testing a drive train of a motor vehicle and the motor vehicle to be tested
- Fig. 2 as an example and schematically a possible embodiment of a test stand according to the invention for a drive train of a motor vehicle and the motor vehicle to be tested,
- FIG. 3 as an example and schematically a possible embodiment of a test bench according to the invention in detail
- FIG. 4 as an example and schematically a further possible embodiment of a test bench according to the invention
- FIG. 7 by way of example and schematically a possible embodiment of a storage module according to the invention and
- FIG. 8 by way of example and schematically another possible embodiment of a test stand according to the invention.
- FIG. 1 shows, by way of example and diagrammatically, a test stand 10 known in the prior art for testing a drive train of a motor vehicle 20 and the motor vehicle 20 to be tested.
- the drive train is already fully installed in the motor vehicle 20.
- the known test stand 10 comprises two load units 11 which are each connected via connecting shafts 12 to hubs 21 of drivable wheels of the motor vehicle 20 .
- generic test stands 10 four load units 11 are also known, particularly for all-wheel drive vehicles.
- the loading units 11 in turn each comprise a terminal box 14 arranged on the electric drive motor 13 for accommodating the cables which supply the electric drive motor 13 with electric energy.
- the drive motors 13 are each arranged on a frame 15, the frame 15 being laterally adjustable in order to be able to be adapted to the track width of different vehicle types.
- the motor vehicle 20 is usually lifted onto the supporting elements 16 by means of a lifting device, for example a crane, and parked there.
- the support elements 16 each have a recording melager for attachment to the hubs of the vehicle wheels.
- the structure and thus the space requirement of the known test stand 10 are comparatively large. Since no wheels are mounted on the hubs 21 of the motor vehicle 20, the motor vehicle 20 cannot be brought into the test position in the test bench 10 either under its own power or by pushing.
- Fig. 2 shows an example and a schematic of a possible embodiment of a test stand 100 according to the invention for a drive train of a motor vehicle 20 and the motor vehicle 20 to be tested.
- the test stand 100 according to the invention comprises two load motors 110 which are connected directly to the hubs 21 (Not shown in Fig. 2) of the motor vehicle 20 can be arranged.
- the test bench 100 according to the invention is significantly more compact and cost-effective in comparison to known test benches 10 .
- the motor vehicle 20 can be moved under its own power to the required test position by means of the storage modules 130 .
- the test stand 100 according to the invention does not require any space-consuming frames 15 due to its construction.
- FIG. 3 shows a possible embodiment of a test stand 100 according to the invention in detail, by way of example and schematically.
- the motor 110 formed as an electric motor from 110 load, which has a motor housing 111 and a motor shaft 112.
- the electric motor 110 or load motor 110 is, according to the example, a permanently excited synchro-torque motor 110 with a liquid-cooled motor shaft 112.
- the motor shaft 112 has a motor shaft 112 shown in Fig.
- the synchro-torque motor 110 is designed as a synchronous motor and has, for example, 12 permanent-magnetic pole pairs. This comparatively large number of pole pairs already gives the load motor 110 a comparatively very high torque even when subjected to comparatively low current intensities. This embodiment also leads to the advantage that the loading motor 110 has a comparatively large radial width compared to the axial length, as a result of which its center of gravity is close to the contact point of the storage module 130 .
- Such electric motors 110 are generally known as so-called “torque motors”.
- An inverter 117 is arranged directly on the motor housing 111 according to beispielsge. Alternatively, however, the inverter 117 can also be arranged at a distance from the motor housing 111 .
- Torque sensor 120 and a parking module 130 can also be seen. Torque sensor 120 is ring-shaped, for example, and is arranged in parking module 130 in such a way that it detects a torque acting in parking module 130 from radially inside to radially outside.
- the torque sensor 120 is arranged radially between an outer circumference of at least one parking module 130 and the connection position of the loading motor 110 to the parking module 130 .
- the connection position is shown in accordance with the game by a ring-like projection 113 whose Outer diameter exactly the outer diameter of the motor housing 111 ent speaks.
- the load motor 110 is connected with its a-side to the projection 113 in a rotating manner.
- the torque sensor 120 is ring-shaped and designed as a supporting component of the parking module 120, i.e. the torque sensor bears the weight of the load motor 110 and the motor vehicle 20 to be tested.
- the loading motor 110 introduces a speed and a torque into the hub 121 of the motor vehicle 20 , it has to support the introduced torque via the projection 113 against the parking module 130 . Since the torque to be supported corresponds to the torque introduced into the drive train, the torque introduced into the drive train can thus be detected in a simple manner via the torque sensor 120 .
- the load motor 110, the torque sensor 120, the annular body 113 and the storage module 130 together represent a possible embodiment of the test bench 100 according to the invention.
- the motor vehicle 20 can only be seen partially, of which only one hub 21 is shown in Fig. 3 for the sake of clarity , a vibration damper 22 and a wheel linkage 23 can be seen.
- the parking module 130 has, for example, a concentric opening 131 through which the hub 21 is accessible from a side facing the loading motor 110 .
- the hub 21 is drivingly connected to the motor shaft 112 via a compensating clutch 121 which is radially housed by the annular projection 113 . Since the hub 21 is an end link of the drive train of the motor vehicle 20, there is also a drive connection to the drive train of the motor vehicle 20, so that the drive train can be loaded and tested.
- the compensating clutch 121 is intended to compensate for any existing angular and radial misalignments.
- the loading motor 110 is connected in a rotationally fixed manner via the annular projection 113 to a radial outer part 135 of the storage module 130 , a radial inner part 136 being rotatably held in the outer part 135 and the inner part 136 having the concentric opening 131 .
- the parking module 130 is held only indirectly on the hub 21 via the loading motor 110.
- the load motor 110 is supported via the outer part 135 of the storage module 130 and can thus introduce a load into the hub 21 .
- a rubber coating 139 is also arranged, which allows realistic parking behavior of the motor vehicle 20 via the parking module 100 130 on the ground.
- the rubber coating 139 advantageously does not require any separate selection and installation on the storage module 130. Instead, the rubber coating 139 can be arranged firmly and permanently on the storage module 130.
- torque sensor 120 is designed like spokes, and in the example includes exactly four force-sensitive elements distributed equally over the circumference at an angle of 90° to one another in the form of strain gauges bonded to storage module 130 .
- Fig. 4 shows a further possible embodiment of a test bench 100 according to the invention by way of example and schematically.
- the test bench 100 of Fig. 4 differs from the test bench 100 of Fig. 3 in the design of the storage module 130.
- storage module 130 has a rubber coating instead device 139 a pneumatic tire 138 arranged.
- the pneumatic tire 138 is a pneumatic tire 138 that is also approved for road use of the motor vehicle 20 . Since the motor vehicle 20 stands up on the pneumatic tire 138 during a test process, the result is a very realistic test behavior of the drive train of the motor vehicle 20.
- FIG. 4 Another difference from the parking module 130 of FIG ring-shaped projection 113 has a smaller radial diameter, but each has a collar 113 ', which rests against the a-side of the load engine 110 and thus a non-rotatable connection, for example, a connection via a flange connection, allows.
- the storage module 130 of FIG. 4 also has no radial inner part 136 which could be rotated relative to the radial outer part 135 . Instead, the storage module 130 of FIG. 4 shows only a concentric opening 131, through which the motor shaft 112 is connected directly to the hub 21.
- the test bench 100 of FIG. 4 in contrast to the test bench of FIG. 3, also has no compensating clutch 121.
- Fig. 5 shows, by way of example and diagrammatically, another possible embodiment of a test bench 100 according to the invention.
- the test bench 100 of Fig. 5 differs from the test bench 100 of Fig. 3 only in the design of the storage module 130.
- the storage module 130 no radial inner part 136 which would be rotatably held in the radial outer part 135.
- the storage module 130 of FIG. 5 has only one concentric opening 131 (not shown in the view of FIG. 5).
- the test stand 100 of FIG. 5 differs from the test stand 100 of FIG. 3 in that the annular projection 113 is missing. via which the loading motor 110 is rotatably connected to the parking module.
- the connec tion is made according to the example via a screw connection.
- test bench 100 shows another possible embodiment of a test bench 100 according to the invention by way of example and schematically.
- the test bench 100 of FIG. 6 differs from the test bench 100 of FIG the parking module 130 has a radial outer part 135 and a radial inner part 136 , the inner part 136 being held by the motor shaft 112 and the loading motor 110 .
- the storage module 130 does not have a concentric opening 131 .
- the inner part 136 of the parking module 130 is connected in a rotationally fixed manner to the hub 21 on the one hand and is connected in a rotationally fixed manner to the motor shaft 112 on the other hand.
- the parking module 130 has a blocking device 132 which, when the loading motor 110 is in the installed state, allows the inner part 136 to rotate relative to the outer part 135 by displacing the outer part 135 in the direction of the loading motor 110 and thus no longer in a common plane with the The inner part 136 is located so that the blocking device 132 cannot develop a blocking effect between the inner part 136 and the outer part 135 .
- the blocking device 132 blocks the ability to rotate. This results in the advantage that the motor vehicle 20 can move under its own power and can accordingly be easily positioned and aligned for the test.
- the storage module 130 of FIG. 7 differs from the storage module 130 of FIG. 6 in that the blocking device 132 can be seen in the blocked state, since the loading motor 110 (not shown in Figure 7) is not mounted. In this state, the motor vehicle 20 can move under its own power because the inner part 136 cannot rotate against the outer part 135 .
- Fig. 8 shows, by way of example and diagrammatically, yet another possible embodiment of a test bench 100 according to the invention.
- the test bench 100 of Fig. 8 differs from the test bench 100 of Fig Motorge housing 111 attacks and a tilting moment of the load motor 110, which would otherwise have to be supported on the Abstellmodul 130 receives.
- the engine support 118 is a wire rope 118 which is attached to a suitable construction above the test stand 100 .
- the motor support 118 also includes a compensation element 119, which contains a spring that can be prestressed and supports the tilting moment of the load motor 110 precisely by means of a set prestressing of the spring.
- the parking module 130 can be supported on the support stamp 133 who the.
- Appropriate actuation of the supporting plunger 133 during the testing process makes it possible, for example, to simulate uneven floors while the motor vehicle 20 is driving. Likewise, almost all other influences of a possible subsurface can be simulated, in particular also in connection with steering movements of steerable wheels of the motor vehicle 20. reference sign
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021203714.3A DE102021203714B3 (de) | 2021-04-15 | 2021-04-15 | Prüfstand für einen Antriebsstrang eines Kraftfahrzeugs |
| PCT/EP2022/059444 WO2022218858A1 (de) | 2021-04-15 | 2022-04-08 | Prüfstand für einen antriebsstrang eines kraftfahrzeugs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4323743A1 true EP4323743A1 (de) | 2024-02-21 |
Family
ID=81588642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22722158.7A Withdrawn EP4323743A1 (de) | 2021-04-15 | 2022-04-08 | Prüfstand für einen antriebsstrang eines kraftfahrzeugs |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4323743A1 (de) |
| DE (1) | DE102021203714B3 (de) |
| WO (1) | WO2022218858A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022207888B4 (de) | 2022-07-29 | 2024-03-21 | Aip Gmbh & Co. Kg | Radantriebsvorrichtung, Prüfstandsystem und Verfahren zur Funktionsprüfung eines Fahrzeugs |
| DE102022005068A1 (de) | 2022-07-29 | 2024-02-01 | Aip Gmbh & Co. Kg | Vorrichtung und Verfahren zum Antreiben eines Fahrzeugs an einem Fahrzeugprüfstand |
| AT527143B1 (de) | 2023-06-12 | 2024-11-15 | Tectos Gmbh | Prüfstandsanordnung |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3476778D1 (en) * | 1984-03-29 | 1989-03-23 | Engstrom Nils G | Apparatus for dynamometer testing of motor vehicles |
| DE4328537C2 (de) | 1993-08-25 | 2000-03-30 | Univ Stuttgart | Getriebeprüfstand und Verfahren zum Prüfen eines Getriebes |
| DE10102236A1 (de) | 2001-01-19 | 2002-08-01 | Bosch Gmbh Robert | Anordnung zur Erfassung physikalischer Messgrößen, insbesondere an einem Radlager eines Kraftfahrzeuges |
| DE10328461A1 (de) | 2003-06-25 | 2005-01-20 | Daimlerchrysler Ag | Fahrzeugprüfstand |
| DE202010018277U1 (de) | 2010-04-22 | 2015-05-15 | Ipetronik Gmbh & Co. Kg | Radsatz |
| KR101921173B1 (ko) * | 2011-04-12 | 2018-11-22 | 고쿠사이 게이소쿠키 가부시키가이샤 | 회전 비틀림 시험기 |
| AT512006A1 (de) * | 2011-10-11 | 2013-04-15 | Seibt Kristl & Co Gmbh | Vorrichtung für ein prüfrad zum prüfen des antriebsstrangs eines fahrzeugs und prüfrad |
| JP6656904B2 (ja) | 2015-12-15 | 2020-03-04 | 株式会社堀場製作所 | 車両試験装置及び車両試験装置に用いられる模擬車輪 |
| DE102019115902A1 (de) | 2019-06-12 | 2020-12-17 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Erfassen eines auf ein Rad eines Kraftfahrzeugs wirkenden Drehmoments, Drehmomenterfassungsvorrichtung sowie Prüfstand |
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2021
- 2021-04-15 DE DE102021203714.3A patent/DE102021203714B3/de active Active
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2022
- 2022-04-08 EP EP22722158.7A patent/EP4323743A1/de not_active Withdrawn
- 2022-04-08 WO PCT/EP2022/059444 patent/WO2022218858A1/de not_active Ceased
Also Published As
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|---|---|
| DE102021203714B3 (de) | 2022-08-25 |
| WO2022218858A1 (de) | 2022-10-20 |
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