Method for inspecting the chassis of a rail vehicle, and computing unit

Abstract

The invention relates to a method for inspecting the chassis of a rail vehicle. The invention additionally relates to a computing unit which is designed to adapt an item of source information, including a first parameter set and / or a second parameter set, as part of an inspection carried out according to such a method.

Description

[0001] 23056P-WO 1 Qlar Europe GmbH Description Title of the invention Method for testing a railway vehicle chassis and computing unit Field of technology The present invention relates to a method for carrying out a test of a railway vehicle chassis. The present invention also relates to a computing unit which is configured to adjust origin information within the framework of a test carried out according to such a method, taking into account a first parameter set and / or a second parameter set. Prior art Railway vehicle chassis are overhauled at regular intervals. As a rule, the entire chassis is removed in order to be able to check it on a test bench. For example, the respective chassis can be measured in both a loaded and an unloaded state and wheel contact force distributions can be determined andThe results obtained in this way are compared with predetermined target values. The test bench components necessary for the inspection, such as sensors for recording measured variables or actuators for influencing the chassis, must be adjusted to the respective chassis. Both the preparations for the test and the evaluation of the data obtained during the test often require knowledge of the construction of both the chassis and the test bench. As a result, chassis testing is often comparatively complex in planning and execution. It is therefore desirable to further simplify chassis testing. Summary of the Invention: The object of the present invention is therefore to overcome the described disadvantages of the prior art and, in particular, to provide means by which the testing of railway vehicle chassis can be carried out simply yet safely andThe invention solves this problem according to a first aspect by proposing a method for carrying out a test of the chassis of a rail vehicle, wherein a chassis to be tested, with a positioning and spatial orientation describable by a first set of parameters, is located in a test rig configured according to a configuration describable by a second set of parameters and is subjected to a test procedure there, wherein location and / or extent information specified or obtained as origin information within the test procedure is adapted by including the first set of parameters and / or the second set of parameters. The invention is thus based on the surprising insight that by including corresponding sets of parameters, information can be adapted regardless of whether it relates to the chassis or to the chassis.are defined on the test bench and can be used for testing. This allows information from different sources and / or for different purposes to be used advantageously for chassis testing. The respective original information can be converted into a format suitable for further processing using the parameter sets. This allows for very flexible information processing. It also makes it possible to specify or receive information as original information and convert it into a format suitable for further processing without or without complete knowledge of the chassis or test bench. The personnel responsible for the chassis thus advantageously need little or no detailed knowledge of the test bench. Conversely, the personnel responsible for the test bench thusIt is advantageous that no or only limited detailed knowledge of the chassis is required. Knowledge of the chassis and the test bench can thus be completely or partially decoupled, enabling simple yet safe and reliable testing of railway vehicle chassis. The test procedure can involve or represent the execution of the test process. Optionally, the procedure can include correctly aligning the chassis within the test bench at the beginning of the process, and in particular, centering it on the test bench. Alternatively or additionally, it can also be provided that the test process is carried out based on adapted, predefined information and / or that the adapted information obtained is included in a subsequent evaluation of the test results. Advantageously, the adapted information can thus be used without knowledge of the respective reference, inwhose context the original information is based on can be used. For example, the original information may have a position and / or extent defined in relation to the chassis. The adapted information may then have a position and / or extent defined in relation to the test bench such that the adapted information can be advantageously used together with other information defined in relation to the test bench. For example, the original information may have a position and / or extent defined in relation to the test bench. The adapted information may then have a position and / or extent defined in relation to the chassis such that the adapted information can be advantageously used together with other information defined in relation to the chassis. Alternatively or additionally, it may also be provided that the original information within a context defined in relation toThe chassis is specified within a defined chassis coordinate system or within a test bench coordinate system defined with respect to the test bench, and the adaptation of the original information involves converting the original information into the other of the two coordinate systems or into a central coordinate system within which the two coordinate systems are defined, preferably with the conversion being carried out in several partial steps across several auxiliary coordinate systems. The original information can, for example, include or represent the coordinates of a point in the chassis coordinate system, a direction vector in the chassis coordinate system, the coordinates of a point in the test bench coordinate system, and / or a direction vector in the test bench coordinate system. The adapted information can then advantageously represent the coordinates of the respective point.and / or have or represent the respective direction vector in the other coordinate system. Preferably, the chassis coordinate system is right-handed and / or the test bench coordinate system is left-handed. However, it is also possible alternatively or additionally for the chassis coordinate system to be left-handed and / or the test bench coordinate system to be right-handed. The respective coordinate system can be defined by different groups of people according to the respective requirements. The parameter sets can then advantageously be used to transfer information from one coordinate system to the other. This allows original information relating to the chassis and / or the chassis coordinate system to be advantageously transferred into adapted information without reference to the chassis and / or the chassis coordinate system. This allows original information withReferences to the test bench and / or the test bench coordinate system can be transformed into adapted information without reference to the test bench and / or the test bench coordinate system. The proposed method thus advantageously allows references contained in the original information to be replaced, so that the adapted information can be used with information with other references. This allows original information with reference to the chassis and / or the chassis coordinate system to be transformed into adapted information without reference to the chassis and / or the chassis coordinate system and / or with reference to the test bench and / or test bench coordinate system. This allows original information with reference to the test bench and / or the test bench coordinate system to be transformed into adapted information without reference to the test bench and / or the test bench coordinate system and / or with reference to theThe chassis and / or chassis coordinate system can be converted. For example, a group of people responsible for the chassis and / or who are unfamiliar with the test bench and / or the test bench coordinate system can specify the original information in the chassis coordinate system known to them. This original information can then be converted by a group of people responsible for the test bench into a form advantageous with respect to the test bench and / or the test bench coordinate system, taking into account the first and / or second parameter set. This allows information defined in another context to be used for the test bench and / or processed with other information defined in connection with the test bench. For example, a group of people responsible for the chassis and / or who are unfamiliar with the test bench and / orThe original information, which has a reference to the test bench and / or the test bench coordinate system, can be adapted, taking into account the first and / or second parameter set, such that the adapted information is in the chassis coordinate system known to this group of people and / or without reference to the test bench and / or the test bench coordinate system. A group of people responsible for the chassis can thus transform the original information into a form advantageous with respect to the chassis and / or the chassis coordinate system 23056P-WO 4 Qlar Europe GmbH, taking into account the first and / or second parameter set, in order to be able to use the original information together with other information defined with respect to the chassis and / or the chassis coordinate system. For example, a group of people responsible for the test benchThe system allows operators who are responsible for the landing gear and / or have no knowledge of the landing gear and / or its coordinate system to process source information defined by a group of people responsible for the landing gear. Providing several sub-steps across multiple auxiliary coordinate systems advantageously allows the source information to be transferred, alternatively or additionally, into one or more further, freely definable coordinate systems of the landing gear. The proposed method can also advantageously display individual measurement points on a screen and / or in an augmented reality application. This is because the coordinates of the measurement points can be adapted for display in the other coordinate system, regardless of their original reference to one of the coordinate systems. This allows, for example, an operator on theThe display and / or augmented reality application can show the position on the chassis where a measurement needs to be performed. This allows the operator to be supported during the testing process. Testing can thus be carried out more quickly and safely. Alternatively or additionally, it can also be provided that, as part of the testing process, location information is provided as source information, in particular (i) in the form of a position of a sensor or actuator of the test bench, specified especially in the test bench coordinate system, (ii) in the form of one or more measurement positions on the chassis, specified especially in the test bench coordinate system and / or the chassis coordinate system, at which measurement positions a quantity is measured by means of a sensor of the test bench, (iii) in the form of one or more relevant positions on the chassis, specified especially in the test bench coordinate system.that are related to a determined measurement quantity, in particular between which a measurement quantity was determined, and / or (iv) in the form of a coupling position on the chassis, specified in particular in the chassis coordinate system, at which coupling position an actuator of the test bench is brought into operative contact with the chassis during the test process, specified or obtained, and adjusted as required. The location information can include or represent the coordinates of the respective position in the respective coordinate system. The position of a sensor or an actuator of the test bench can be specified by a group of persons responsible for the test bench. The measurement positions on the chassis can be specified by a group of persons responsible for the chassis and / or the test bench. The relevant positions on the chassis can, for example, be two positions.Based on this, a distance calculation can be performed to determine the distance between the two positions. The relevant positions can be obtained from a sensor on the test bench, in particular by measurement. The coupling position on the chassis can be specified by a group of people responsible for the chassis. 23056P-WO 5 Qlar Europe GmbH The location information can therefore generally have or represent coordinates of a position in one of the coordinate systems. Alternatively or additionally, it can also be provided that, within the scope of the test procedure, extension information is obtained as source information, in particular (i) in the form of an extension of a sensor or actuator of the test bench, specified in particular in the test bench coordinate system, or (ii) in the form of a movement segment, specified in particular in the test bench coordinate system and / or in the chassis coordinate system.(iii) along the chassis, along which segment of movement an actuator of the test stand or parts of the actuator is or are moved, (iv) in the form of a direction of movement, in particular specified in the test stand coordinate system and / or in the chassis coordinate system, along which direction of movement an actuator of the test stand or parts of the actuator is or are moved, (iv) in the form of a distance between two points of the chassis, in particular specified in the test stand coordinate system or in the chassis coordinate system, and / or (v) in the form of a distance between two points of the chassis, in particular specified in the test stand coordinate system or in the chassis coordinate system, is specified or obtained and is adjusted in each case. The extent information can be a vector quantity and / or information on a start and end point (such as the extent, the segment of movement, the distance) orThe extension information can include or represent a direction vector in the respective coordinate system, the magnitude of which is preferably a length of movement. Information about the start point and / or the end point can each include or represent the coordinates of the respective points in the respective coordinate system. The extension of a sensor or actuator of the test bench can be specified by a group of people responsible for the test bench. The movement segment along the chassis can be specified by a group of people responsible for the chassis. The direction of movement can be specified by a group of people responsible for the test bench. The distance between two points of the chassis can be specified and / or obtained by a group of people responsible for the chassis and / or the test bench. The distanceThe distance between two points of the chassis can be specified and / or maintained by a group of people responsible for the chassis and / or the test bench. Alternatively or additionally, it can also be provided that the first parameter set describes the positioning and / or spatial orientation of the chassis relative to the test bench. For example, the first parameter set can define a relationship between the chassis coordinate system and the test bench coordinate system, either wholly or partially. Alternatively or additionally, it can also be provided that the spatial orientation of the chassis is influenced by manufacturing tolerances and / or wear of the chassis wheels. Advantageously, the proposed method therefore takes such an influence on the spatial orientation of the chassis into account. Alternatively or additionally, it can also be provided that the firstThe parameter set comprises (i) position data of the chassis, in particular position data of one or more wheels of the chassis, 23056P-WO 6 Qlar Europe GmbH, especially specified relative to the test rig, and / or (ii) wheelset geometry data of the chassis, in particular wheelset spacing data, wheel back spacing data, and / or wheel contact points, which data are preferably obtained from sensors, such as wheel back lasers, and / or actuators, and / or wherein a center point of the chassis and / or an origin of the chassis coordinate system is determined from the data of the first parameter set. The proposed method thus advantageously allows the orientation of the chassis within the test rig to vary. For example, the chassis can be oriented in the test rig rotated arbitrarily by ±180° about a vertical axis of rotation. Alternatively or additionally, it can also be provided that the second parameter set includes data ona track gauge of the test stand set with respect to the chassis under test and / or a wheelset spacing of the test stand set with respect to the chassis under test, and / or wherein a center point of the test stand and / or an origin of the test stand coordinate system is determined from the data of the second parameter set. Thus, with the proposed method, it is advantageously possible to test chassis of different track gauges particularly easily and reliably in the test stand. According to a second aspect of the invention, the object is achieved by a computing unit, in particular as part of a test stand for testing the chassis of a rail vehicle, which is configured to determine origin information during a test carried out according to the first aspect of the invention, taking into account a first parameter set and / or a second parameter set.It is proposed to adapt the parameter set. All advantages described with regard to the method according to the first aspect of the invention also apply accordingly to the computing unit according to the second aspect of the invention. Therefore, reference can be made to the previous explanations at this point. Preferably, the computing unit is configured to carry out the method according to the first aspect of the invention. For this purpose, the computing unit can, for example, interact with components of the test bench, in particular by sending and receiving data. The computing unit can, for example, be implemented in software, in hardware, or as a combination of both. The computing unit can be a device for data processing. Alternatively or additionally, the computing unit can include a memory, a processor, a receiving device, a transmitting device, or any combination thereof.The computing unit can alternatively or additionally provide and / or make available everything that it exhibits, such as, in particular, all necessary resources, for example, in the form of software and / or hardware resources. The computing unit advantageously has interfaces for receiving first and / or second parameter sets and / or signals from the respective sensors and / or means for processing, evaluating, and / or analyzing the respective parameter sets and / or sensor signals. In the context of carrying out the test according to the first aspect of the invention, the respective test bench can accordingly include the computing unit according to the second aspect of the invention. 23056P-WO 7 Qlar Europe GmbH Brief description of the drawings. Further features and advantages of the invention will become apparent from the following description, in which preferred embodiments of the invention are illustrated with reference to schematic drawings.The invention will be explained below. Figure 1 shows a schematic top view of a test stand with a chassis of a rail vehicle mounted therein; Figure 2 shows a schematic front view of the test stand with the chassis of Figure 1 mounted therein; and Figure 3 shows a computing unit according to the second aspect of the invention. Description of the embodiments: Figure 1 shows a schematic top view of a test stand 1 with a chassis 3 of a rail vehicle mounted therein. Figure 2 shows a schematic front view of the test stand 1 with the chassis 3 of Figure 1 mounted therein. The chassis 3 has four wheels: a front right wheel 5a, a front left wheel 5b, a rear right wheel 5c, and a rear left wheel 5d. The chassis 3 also has several mounting points for receiving a locomotive body or aThe wagon body is mounted on a test stand 1, including at least the two mounting points 7a and 7b. A left-handed Cartesian coordinate system with axes U, V, and W is defined for the chassis 3, which is fixed relative to the chassis 3. The chassis 3 can be subjected to a test procedure using the test stand 1. For this purpose, the chassis 3 is aligned within the test stand 1. Each wheel 5a-5d is positioned in a wheel mount (not shown in Figures 1 and 2), such as a prism support or a roller support, which in turn is arranged on a movable slide of the test stand 1 (also not shown in Figures 1 and 2). A left-handed Cartesian coordinate system with axes X, Y, and Z is defined for the test stand 1, which is fixed relative to the test stand 1. The zero point of the Y-axis of the test bench coordinate system can advantageously be located relative to the midpoint between the two tracks 9a and9b of test stand 1 is defined (in embodiments, the zero point of the Y-axis of the test stand coordinate system lies exactly midway between the two tracks 9a and 9b). The viewing direction in Fig. 2 runs along the positive X-axis of the test stand coordinate system and along the negative U-axis of the chassis coordinate system. The origin of the chassis coordinate system is shifted in space relative to the origin of the test stand coordinate system. This is particularly evident when viewing Figs. 1 and 2 together. The shift of the chassis coordinate system relative to the test stand coordinate system along the (negative) Y-direction and the (negative) X-direction is chosen here primarily for the sake of better representation of the individual coordinate systems in the figures. In principle, however, in embodiments the zero points of individual or all axis pairs U-X, V-Y, and W-Z can coincide.In the case of the coordinate systems defined here, however, none of the axis pairs U-X, V-Y, and W-Z has a common origin. 23056P-WO 8 Qlar Europe GmbH The two coordinate systems are defined independently of each other. However, a first set of parameters describes how the chassis 3 is positioned and spatially oriented within the test rig 1 relative to it. Regarding the position of the chassis 3 within the test rig 1, position data of the chassis 3, such as position data of one or more of the wheels 5a-5d of the chassis 3 relative to the test rig 1, can be specified. For example, the positions of the four mounting prisms and / or wheel contact points of the four wheels 5a-5d within the test rig coordinate system can be known or determined, for example, by means of sensors. If, in this case, a "position" (of a part of the test rig 1 or theWhen referring to the chassis 3), these positions can each be assigned coordinates in the respective coordinate system (of the test stand 1 or of the chassis 3). The orientation of the chassis 3 within the test stand 1 can be described, for example, by indicating whether the U-axis (of the chassis coordinate system) is parallel or antiparallel to the X-axis (of the test stand coordinate system). In other words, this indicates whether a front face 11 of the chassis 3 points forward or backward in the test stand 1. In this case, the front face 11 of the chassis 3 is oriented backward in the test stand 1. The front face 11 therefore points in the negative X-direction. The chassis 3 is thus rotated 180° about an axis of rotation parallel to the W-axis and inserted into the test stand 1, which is why, for example, the front right side in Fig. 1 is also...Wheel 5a of the chassis 1 is shown at the rear left. A second set of parameters describes the track width S set in test rig 1 and / or a wheelset spacing (i.e., the distance between the two prisms of one of the tracks 9a, 9b; the positions of the receiving prisms within the test rig coordinate system are known or determinable) of test rig 1. The track width S set in test rig 1 is advantageous because if the track width S is changed (by unilaterally changing track 9a or track 9b) by a certain value, the midpoint between the two tracks 9a and 9b, measured along the Y-axis, changes by only half the respective value. This also changes the origin of a test rig coordinate system advantageously defined relative to this midpoint. The origin of the test rig coordinate system can be determined for the respective...The configuration of the test rig 1 is advantageously determined. The test rig 1 has an actuator 13 (shown only in Fig. 2). The actuator 13 forms a loading device with which a load can be applied to the chassis 3. The actuator 13 can thus be used, for example, to simulate the weight of a locomotive body or a wagon. For example, the actuator 13 has a spindle 15 that is movable along the negative Z-axis in the direction of the mounting point 7a and can thus exert a force F on the mounting point 7a. The test rig 1 also has a sensor 17 (shown only in Fig. 2). The sensor 17 can be configured to determine the measuring points M1 and M2 on a front wheel axle and a rear wheel axle of the chassis 1. For this purpose, the sensor 17 can, for example, emit electromagnetic radiation 19, such as in the form of a laser beam, and measure the path of the laser beam and / orEvaluate reflected radiation to determine measurement points M1 and M2. The personnel responsible for the chassis can define the positions of individual chassis components 3 (such as wheels 5a-5d or mounting points 7a and 7b) within the chassis coordinate system. For example, a coordinate set (ULail, Vwheel, Wwheel) can be defined for each wheel 5a-5d, and a coordinate set (Umount, Vmount, Wmount) can be defined for each mounting point 7a and 7b for the respective position (e.g., the center point of each component). 23056P-WO 9 Qlar Europe GmbH The personnel responsible for the test rig can define position and / or extent specifications for individual components of the test rig 1 within the test rig coordinate system. For example, the mounting position of actuator 13 on theTest bench 1 a coordinate set (X Aktuator , Y Aktuator , Z Aktuator ) and for the direction of movement of the spindle, a direction R antiparallel to the Z-axis can be defined. Similarly, a coordinate set (X) can be defined for the mounting position of the sensor 17. Sensor , Y Sensor , Z Sensor) can be defined. This means that the personnel responsible for landing gear 3 do not need any knowledge of test stand 1 (and especially no knowledge of the definition of the test stand coordinate system), and conversely, the personnel responsible for test stand 1 do not need any knowledge of landing gear 3 (and especially no knowledge of the definition of the landing gear coordinate system). The personnel can therefore make the definitions independently of each other. A test of landing gear 3 can, for example, involve investigating the behavior of landing gear 3 as a result of a force being applied to it using test stand 1. For this purpose, the force F can be applied to, for example, the mounting point 7a of landing gear 3 using actuator 13, in particular using the spindle 15. During the force application, the... (in Figs.The wheel contact forces of the four wheels 5a-5d on the respective mounting prisms are measured by force sensors (1 and 2, not shown in detail). To perform the test, the spindle 15 is extended downwards (in Fig. 2, along the direction R or the negative Z-direction) until it is in contact with the mounting point 7a and exerts the adjustable force F on it and thus on the chassis 3. Since the position of the mounting point 7a is defined in the chassis coordinate system, but the position and extent information of the actuator is defined in the test bench coordinate system, this information is first converted into a common coordinate system. In this case, the coordinates of the mounting position (U-mount, V-mount, W-mount) are converted from the chassis coordinate system into coordinates defined with respect to the test bench coordinate system.For this purpose, the first and second parameter sets are included. These parameter sets allow a relationship between the chassis coordinate system and the test bench coordinate system to be determined and used for the coordinate transformation. This results in the coordinates of the position of the mounting point 7a being obtained as transformed coordinates (X-axis, Y-axis, Z-axis) in the test bench coordinate system. Since the positions and, if applicable, the direction of both actuator 13 with spindle 15 and mounting point 7a are thus available in a common coordinate system, actuator 13 can be selectively actuated to extend the spindle 15 downwards the required distance so that it comes into contact with the mounting point 7a.This example illustrates how, using a method according to the first aspect of the invention, location information (here: the position of the recording 7a in the chassis coordinate system) can be specified as origin information and adapted (here: converted into a position defined in the test bench coordinate system) by incorporating the first and second sets of parameters in order to advantageously perform a test of the chassis of a rail vehicle. A test of the chassis 3 can alternatively or additionally include, for example, measuring the actual axle spacing A of the two axles of the chassis 3. For this purpose, a measuring point M1 and M2 can be determined for each axle, for example, using the sensor 17. Based on the coordinates of the two measuring points M1 and M2, the axle spacing A can be determined by an operator.Sensor 17 can determine the two measuring points M1 and M2 as described above. Sensor 17, whose position relative to test stand 1 is defined in the test stand coordinate system (23056P-WO 10 Qlar Europe GmbH), also determines the coordinates of the two measuring points M1 and M2 in the test stand coordinate system as (XM1, YM1, ZM1) and (XM2, YM2, ZM2), respectively. For documentation and / or further use of the information on the positions of measuring points M1 and M2, in particular to enable manual measurement of the distance between the two measuring points (e.g., by personnel responsible for the chassis and / or who are unfamiliar with the test stand coordinate system), the positions of measuring points M1 and M2 are transferred to the chassis coordinate system.For this purpose, the first and second parameter sets are again included, so that the coordinates can be transferred based on the relationship determined between the chassis coordinate system and the test bench coordinate system. This results in the coordinates of measuring points M1 and M2 being obtained as transformed coordinates (UM1, VM1, WM1) and (UM2, VM2, WM2) in the chassis coordinate system. The measuring points can then be displayed to an operator at the correct position relative to the chassis, for example, using an augmented reality device. The operator can then measure the distance between the two measuring points M1 and M2. In some embodiments, the sensor 17 can also be configured to determine the axle spacing A independently. The original information can then be adapted, for example, for documentation purposes, and thus transferred into the chassis coordinate system.This example illustrates how, using a method according to the first aspect of the invention, location information (here: the measurement positions M1 and M2 determined by the sensor in the test bench coordinate system) can be obtained as origin information and adapted (here: transferred into the chassis coordinate system) by incorporating the first and second parameter sets in order to advantageously carry out a test of the chassis of a rail vehicle. Fig. 3 shows a computing unit 21 according to the second aspect of the invention. The computing unit 21 is configured to adapt origin information by incorporating a first parameter set and / or a second parameter set within the framework of a test carried out according to the first aspect of the invention. The test can include or represent a test procedure as described above with reference to Figs. 1 and 2.The computing unit 21 can, for example, be part of the test bench 1. The features disclosed in the preceding description, in the drawings, and in the claims can be essential to the invention in its various embodiments, both individually and in any combination.

[0002] 23056P-WO 11 Qlar Europe GmbH Reference List 1 Test Bench 3 Chassis 5a, 5b, 5c, 5d Wheel 7a, 7b Mounting Point 9a, 9b Track 11 Front 13 Actuator 15 Spindle 17 Sensor 19 Electromagnetic Radiation 21 Computing Unit A Center Distance F Force M1, M2 Measuring Point R Direction S Track Width ULail, Vwheel, Wwheel Coordinate of a Wheel Umount, Vmount, Wmount Coordinate of the Mount XActuator, YActuator, ZActuator Coordinate of the Actuator XSensor, YSensor, ZSensor Coordinate of the Sensor XMount, YMount, ZMount Transformed Coordinate of the Mount X M1 , Y M1 , Z M1 Coordinate of a measuring point XM2, YM2, ZM2 Coordinate of a measuring point UM1, VM1, WM1 Transformed coordinate of the measuring point UM2, VM2, WM2 Transformed coordinate of the measuring point U, V, W Axis of the chassis coordinate system X, Y, Z Axis of the test bench coordinate system

Claims

23056P-WO 12 Qlar Europe GmbH Patent Claims 1. Method for carrying out a test of a running gear of a rail vehicle, wherein a running gear to be tested, with a positioning and spatial orientation describable by a first parameter set, is located in a test rig configured according to a configuration describable by a second parameter set and is subjected there to a test procedure, wherein location and / or extent information specified or obtained as origin information within the scope of the test procedure is adapted by including the first parameter set and / or the second parameter set.

2. Method according to claim 1,wherein the test procedure is carried out based on the adapted predefined information and / or the adapted obtained information is included in a subsequent evaluation of the test procedure results.

3. Method according to one of the preceding claims, wherein the original information is specified within a chassis coordinate system defined with respect to the chassis or within a test bench coordinate system defined with respect to the test bench, and the adaptation of the original information comprises a conversion of the original information into the other of the two coordinate systems or into a central coordinate system within which the two coordinate systems are defined, wherein the conversion is preferably carried out in several partial steps across several auxiliary coordinate systems.

4. Method according to one of the preceding claims,wherein, within the scope of the test procedure, the originating information is location information (i) in the form of a position of a sensor or actuator of the test bench, specified in particular in the test bench coordinate system, (ii) in the form of one or more measurement positions on the chassis, specified in particular in the test bench coordinate system and / or in the chassis coordinate system, at which measurement positions a measurand is measured by means of a sensor of the test bench, (iii) in the form of one or more relevant positions on the chassis, specified in particular in the test bench coordinate system, which are related to a determined measurand, in particular between which a measurand was determined, and / or (iv) in the form of a coupling position on the chassis, specified in particular in the chassis coordinate system,at which coupling position an actuator of the test bench is brought into operative connection with the chassis during the test procedure is specified or obtained and adjusted accordingly.

5. Method according to one of the preceding claims, wherein, within the scope of the test procedure, as origin information, an extension information 23056P-WO 13 Qlar Europe GmbH (i) in the form of an extension of a sensor or an actuator of the test bench, specified in particular in the test bench coordinate system, (ii) in the form of a movement segment along the chassis, specified in particular in the test bench coordinate system and / or in the chassis coordinate system, along which movement segment an actuator of the test bench or parts of the actuator is or are moved, (iii) in the form of a direction of movement, specified in particular in the test bench coordinate system and / or in the chassis coordinate system,(iv) the direction of movement along which an actuator of the test rig or parts of the actuator is or are moved, (v) in the form of a distance between two points of the chassis, specified in particular in the test rig coordinate system or in the chassis coordinate system, and / or (v) in the form of a distance between two points of the chassis, specified in particular in the test rig coordinate system or in the chassis coordinate system, is specified or obtained and adjusted in each case.

6. Method according to any one of the preceding claims, wherein the positioning and / or spatial orientation of the chassis relative to the test rig can be described by the first set of parameters.

7. Method according to any one of the preceding claims, wherein the spatial orientation of the chassis is influenced by manufacturing tolerances and / or wear of the wheels of the chassis.

8. Method according to any one of the preceding claims,wherein the first parameter set comprises (i) position data of the chassis, in particular position data of one or more wheels of the chassis, especially specified relative to the test stand, and / or (ii) wheelset geometry data of the chassis, in particular wheelset spacing data, wheel back spacing data and / or wheel contact points, which data are preferably obtained from sensors, such as wheel back lasers, and / or actuators, and / or wherein a center point of the chassis and / or an origin of the chassis coordinate system is determined from the data of the first parameter set.

9. Method according to one of the preceding claims, wherein the second parameter set comprises data on a track width of the test stand set with respect to the chassis to be tested and / or on a wheelset spacing of the test stand set with respect to the chassis to be tested,and / or wherein a center point of the test bench and / or an origin of the test bench coordinate system is determined from the data of the second parameter set.

10. Computing unit, in particular as part of a test bench for testing the chassis of a rail vehicle, which is configured to adjust origin information within the scope of a test carried out according to any one of claims 1 to 9, taking into account a first parameter set and / or a second parameter set.

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