System and method for computer laminographic examination of an energy storage device for a motor vehicle

Abstract

The invention relates to a system (10) for the computer laminographic examination of an energy storage device (12) for a motor vehicle, comprising an imaging device (20) with an X-ray source (22) and an X-ray detector (24), wherein the imaging device (20) is designed to laminographically scan a detection area (26) located between the X-ray source (22) and the X-ray detector (24) in order to obtain at least one projection data set of the detection area (26), and a support device (40) for the energy storage device (12), wherein the energy storage device (12) is movable between a first position and at least a second position by means of the support device (40), wherein the energy storage device (12) is arranged outside the detection area (26) in the first position and at least partially within the detection area (26) in the at least one second position. The invention further relates to a corresponding method.

Description

[0001] The present invention relates to a system for the computer laminographic examination of an energy storage device for a motor vehicle and a method for examining such an energy storage device.

[0002] Using X-ray computed tomography (X-ray CT, simplified: CT), cross-sectional images of components (e.g., cast parts) can be generated in modern industrial manufacturing for non-destructive and, if necessary, automated inspection. A region of interest on a component to be inspected (the so-called test object) is usually placed between an X-ray source and an X-ray detector and rotated around a rotation axis relative to the X-ray source and X-ray detector while being irradiated with X-rays. The intensity of the X-rays penetrating the region of interest is attenuated by absorption, resulting in an intensity profile for each projection, which is recorded by an X-ray detector.Using common reconstruction algorithms, such as (filtered) backprojection, a cross-sectional image can be generated through the region of interest perpendicular to the rotation axis. This typically requires radiating the component from an angular range of 360°, but at least 180°.

[0003] Against this background, it is an object of the present invention to provide a system that enables the non-destructive and efficient cross-sectional visualization of motor vehicle traction batteries. Furthermore, it is an object of the present invention to provide a corresponding method.

[0004] This object is achieved by a system having the features of patent claim 1 and a method according to patent claim 11.

[0005] The system is intended for the computer laminographic examination of an energy storage device for a motor vehicle. The energy storage device can, in particular, be the drive battery of the motor vehicle (so-called high-voltage storage device). The system can thus be suitable for the non-disassembly / non-destructive computer laminographic analysis of the energy storage device / drive battery as a whole (i.e., including the energy storage cells installed in the energy storage device ready for operation) using computer laminography. The system comprises an imaging device with an X-ray source and an X-ray detector, wherein the imaging device is designed to laminographically scan a detection area located between the X-ray source and the X-ray detector in order to acquire at least one projection data set from the detection area.The system further comprises a support device for the energy storage device, wherein the energy storage device is movable between a first position and at least one second position by means of the support device. In the first position, the energy storage device is arranged outside the detection area, and in the at least one second position, it is arranged at least partially within the detection area.

[0006] This enables efficient and flexible examination of the energy storage device. In particular, after completion of the formation process of the energy storage cells and their assembly in the energy storage device, the energy storage device can be examined synergistically not only with regard to the design of the energy storage cells but also with regard to their positioning and fixation in the energy storage device as a whole. For this purpose, the energy storage device can advantageously be attached to the support device outside the imaging device / detection area and then moved into its second position within the detection area using the support device. The computed laminography examination can thus be carried out simply and relatively quickly without disassembling the energy storage device.

[0007] In the context of the present disclosure, the term "capture area" refers to the spatial area that is laminographically scanned by the imaging device. That is, the capture area is the spatial area inside the imaging device that can be irradiated by X-rays emitted by the X-ray source and detected by the X-ray detector.

[0008] The X-ray detector and the X-ray source can be arranged during each laminographic scan (during which a projection data set is acquired) such that a connecting axis between the X-ray detector and the X-ray source, defined by the central beam (so-called principal beam) of the X-ray source, runs through the detection area. The X-ray rays preferably leave the X-ray source as a fan beam or as a cone beam. Alternatively, the beam from the X-ray source can be collimated, i.e., in simple terms, it can be composed of individual beams that are parallel to one another. Regardless of the shape of the beam from the X-ray source, it is characterized by its symmetry around the central beam. The X-ray source (also known as an X-ray tube) is preferably intended for non-destructive material testing and preferably has a nominal tube voltage of at least 300 kV, preferably at least 450 kV.The X-ray detector can be designed as a straight or curved line detector or as a flat or curved matrix detector.

[0009] In this context, a projection dataset can be understood as the entirety of projection data that can be generated during a complete laminographic scan. The projection data can be grouped into individual projection subsets, each of which is assigned to a projection.

[0010] The support device is provided here for the energy storage device and can therefore in particular have a maximum permissible load of at least 500 kg, preferably at least 800 kg. Furthermore, the support device is preferably suitable for supporting the energy storage device with dimensions of at least 2 m long and at least 1.5 m wide, preferably suspended or resting on the support device. For this purpose, the support device preferably comprises a frame structure (holding frame) on which a first fastening device is formed. The first fastening device can be designed to be complementary to a second fastening device provided on the energy storage device. The energy storage device can thus be attached to the support device relatively quickly and easily.

[0011] Most preferably, the first fastening device corresponds to a further fastening device formed on the motor vehicle, which can be provided for mounting the energy storage device by connecting the first fastening device to the second fastening device. Thus, the second fastening device can be mounted optionally by means of the further fastening device on the motor vehicle or by means of the first fastening device on the support device in order to attach the energy storage device to the motor vehicle or to the support device. The first fastening device can in particular comprise a first part of a screw connection (for example a hole with an internal thread) and the second fastening device can in particular comprise a second part of the screw connection (for example a corresponding bolt).

[0012] The energy storage device is preferably oriented vertically (erected) in its second position. In a preferred variant, the support device has a frame by means of which the energy storage device can be erected vertically. In this case, the energy storage device, when fastened to the support device, can be displaced relative to the frame, preferably horizontally and / or parallel to the main plane of the energy storage device when the energy storage device is erected vertically. The frame can be trestle-shaped, wherein at least one leg can extend away from a longitudinal member of the frame at opposite longitudinal ends of the frame, such that the frame can be erected on the legs. The legs are preferably spaced apart from one another.When the energy storage device is in the second position, the frame can span a base section of the imaging device such that the legs rest on the floor on opposite sides of the base section. The frame structure is preferably mounted on the longitudinal member so that it can be displaced axially (i.e., in the longitudinal direction of the longitudinal member). For this purpose, a sliding or rolling bearing can be used, for example. Optionally, the frame structure can be pivotable relative to the legs about the longitudinal axis of the longitudinal member.

[0013] To protect the environment of the system from X-ray radiation, the imaging device preferably comprises a shielding housing, which can in particular have two side wall sections and / or a ceiling section (generally: wall sections). A first or second opening can be provided in at least one of the side wall sections or in the ceiling section, which makes it possible, on the one hand, to design the imaging device in a comparatively compact manner and, on the other hand, to mechanically move the comparatively large energy storage device into its second position by means of the support device. Preferably, the wall section on which the first / second opening is formed is positioned such that the X-ray radiation emitted by the X-ray tube during laminographic scanning is not emitted in the direction of the first / second opening.Preferably, the plane in which the X-ray tube moves during laminographic scanning is aligned transversely, in particular perpendicularly, to the sidewall section or the ceiling section. This relative positioning allows the amount of X-ray radiation emitted into the environment to be reduced, which is particularly advantageous in the context of industrial X-ray imaging with comparatively high radiation energies.

[0014] If the shielding housing of the imaging device has the ceiling section with the first opening, the support device can be configured to support the energy storage device through the first opening while the energy storage device is in its second position. In this case, the support device preferably comprises a crane hook configured to support the energy storage device while moving between the first and second positions. The crane hook can, in particular, be an overhead crane hook having a load-bearing capacity of between 500 kg and 1000 kg. Eyelets can be formed on the frame structure, which can be connected to the crane hook by means of a lifting means. The support device configured in this way can thus support the energy storage device through the first opening and / or absorb at least part of the weight of the energy storage device while the energy storage device is held in its second position.

[0015] To enable quick and easy installation of the energy storage device on the frame structure, the system can include supports on which the frame structure can be placed. The energy storage device can then be placed against the frame structure or inserted into it. After connecting the first fastening device to the second fastening device, the support device can be set up using the crane hook and lifted into the detection area in the second position. In this variant, the main plane of the energy storage device is thus vertically aligned in the second position.

[0016] If the shielding housing of the imaging device has the side wall section with the second opening, the support device can comprise a linear table by means of which the energy storage device can be displaced between the first position and the second position through the second opening. The linear table can, in particular, be configured to displace the energy storage device between the second opening and a rotary table of the imaging device in order to move the energy storage device into its second position on the rotary table.

[0017] In a further variant, the system also comprises a mounting plate with a predetermined first fastening point for the support device and a predetermined second fastening point for the support device, which is different from the first fastening point. The mounting plate is preferably designed as a perforated plate. The first and second fastening points can each comprise a hole accordingly. If the support device is fastened to the first fastening point on the mounting plate, the energy storage device can be arranged at a first distance from the X-ray detector. If, however, the support device is fastened to the second fastening point on the mounting plate, the energy storage device can be arranged at a second distance from the X-ray detector, which is different from the first distance. Each of these fastening points thus defines an associated positional relationship between the energy storage device and the imaging device.

[0018] With respect to the respective laminographic scan, the first or second distance can be maintained throughout the entire laminographic scan. For example, if the first distance is smaller than the second distance, the arrangement at the first mounting location can result in a larger area of ​​the energy storage device being imaged laminographically than with the arrangement at the second mounting location. Accordingly, the mounting plate enables defined zoom levels to be realized in a simple and efficient manner.

[0019] The energy storage device can generally be understood as a large, flat component of the motor vehicle (so-called flat storage device). Accordingly, the energy storage device can comprise a main plane that runs parallel to its longitudinal and transverse direction, in particular through the energy storage device. The present disclosure proposes two orientations of the energy storage device: upright and horizontal. Consequently, the main plane of the energy storage device can be oriented vertically or horizontally in the second position. In particular, the main plane can be oriented vertically in the second position if the support device comprises the frame structure and / or the rack. If the support device is equipped with the linear table, the main plane can preferably be oriented horizontally in the second position. A movement axis of the linear table is accordingly also oriented horizontally.The second position will be discussed in more detail below.

[0020] The detection area can be smaller than the extension of the energy storage device in a direction parallel to the main plane of the energy storage device. In order to laminographically scan the detection area or the part of the energy storage device located therein, the imaging device is preferably designed to displace the X-ray source in a first plane and / or the X-ray detector in a second plane. Preferably, the first plane or the second plane is aligned parallel to the main plane of the energy storage device. These movements of the X-ray source and X-ray detector for the laminographic scanning of the detection area can be realized by means of a positioning device of the imaging device.

[0021] The imaging device can perform laminographic scanning of the detection area according to one or more of the following acquisition geometries: co-rotating (parallel) translational laminography; counter-rotating (anti-parallel) translational laminography; rotational laminography; and swing laminography. With co-rotating laminography acquisition geometries, it is generally conceivable to move the test object's energy storage device in the ambient reference frame and keep the X-ray source and X-ray detector stationary to perform the respective scan. However, the test object is preferably kept stationary in the ambient reference frame to achieve high precision in a simple manner.

[0022] In one variant, the imaging device is designed to generate, based on the at least one projection data set, individual images (sectional images) of different planes of the energy storage device, each aligned parallel to the main plane of the energy storage device and / or parallel to one another, and / or a three-dimensional image of the energy storage device. The three-dimensional image can be formed from the individual images. This means that the imaging device can be configured to generate the individual images and subsequently combine them into a three-dimensional image. The number of individual images can be at least 3, at least 10, or at least 50. These individual images or the three-dimensional image are preferably generated by means of digital tomosynthesis based on the projection data set. Alternatively, the three-dimensional image can be generated directly by reconstruction based on the projection data set.

[0023] Furthermore, the imaging device can be configured to shift the detection area relative to the energy storage device in order to laminographically scan multiple adjacent or overlapping regions of interest of the energy storage device, as described above. This can be achieved, for example, by shifting the energy storage device parallel to its main plane between two complete laminographic scans. In this way, individual images / three-dimensional images of adjacent sections of the energy storage device can be combined to image a larger area of ​​the energy storage device with high resolution.

[0024] A method proposed here for examining an energy storage device for a motor vehicle using a computed laminographic imaging device having an X-ray source and an X-ray detector comprises the following steps, which are preferably carried out in the following order: moving the energy storage device by means of a support device between a first position and at least one second position, wherein the energy storage device is arranged in the first position outside a detection area of ​​the imaging device located between the X-ray source and the X-ray detector, and in the at least one second position at least partially in the detection area; and laminographic scanning of the detection area to obtain at least one projection data set from the detection area.

[0025] Furthermore, this method may have any, in particular all, of the features described above in connection with the system. In particular, the method may include method steps corresponding to any functions of the system and its components.

[0026] Preferred embodiments of a system for the computer laminographic examination of an energy storage device for a motor vehicle and of a method for examining an energy storage device for a motor vehicle by means of a computer laminographic imaging device will now be explained in more detail with reference to the attached schematic, not-to-scale drawings, wherein Fig. 1 shows a variant of a system for the computational laminographic examination of an energy storage device in a perspective view; Fig. 2 shows a further variant of a system for the computer laminographic examination of an energy storage device in a perspective view; Fig. 3 the support device of the system Fig. 1 in a perspective view, with the energy storage device positioned upright; Fig. 4 the carrying device Fig. 3 shows a perspective view with the energy storage device lying horizontally; Fig. 5 the recording geometry of the system Fig. 1 shows the acquisition geometry being co-rotational translational laminography; Fig. 6 shows the acquisition geometry in the form of counter-rotating translational laminography according to another variant; Fig. 7 shows the acquisition geometry in the form of swing laminography according to another variant; Fig. 8 shows the recording geometry in the form of co-rotational laminography according to another variant; and Fig. 9 shows a method for examining an energy storage device for a motor vehicle including its method steps.

[0027] The Fig. 1 and Fig. 5 shows a system 10 that is used and suitable for testing an energy storage device 12 for a motor vehicle. The energy storage device 12 is a motor vehicle drive battery, which can, for example, have a capacity of between 30 kWh and 300 kWh in several individual, interconnected energy storage cells. The energy storage device 12 is designed as a flat storage device and has a length-to-height ratio of at least 10:1. The motor vehicle is preferably a land vehicle, most preferably a passenger car.

[0028] The system comprises an imaging device 20 with an X-ray source 22 and an X-ray detector 24, as well as a support device 40 for the energy storage device 12. The support device 40 has a maximum load capacity that is preferably greater than the weight of the energy storage device 12. Furthermore, the support device 40 can move the energy storage device 12 relative to the environmental reference system along at least one axis, preferably in three mutually orthogonal directions. In particular, the support device 40 can move the energy storage device 12 between a first position and at least one second position. In the first position, the energy storage device 12 is outside a Fig. 1 dotted detection area 26 of the imaging device 20 and in the at least one second position the energy storage device 12 is located as in Fig. 1 shown at least partially in the detection area 26. In the first position, the energy storage device 12 can, for example, be positioned completely in the environment of the imaging device 20.

[0029] The imaging device 20 is generally configured to laminographically scan the detection area 26 located between the X-ray source 22 and the X-ray detector 24 to obtain at least one projection data set from the detection area 26. By way of example, the X-ray source 22 is configured here to emit a cone beam, although fan-beam X-ray sources 22 can also be used to generate the projection data set. Accordingly, the X-ray detector 24 is configured as a matrix detector.

[0030] For scanning, the imaging device 20 comprises a preferably electromechanical positioning device which is designed to position the X-ray source 22 and the X-ray detector 24 as shown in Fig. 1 shown by the double arrows in three mutually orthogonal directions. This means that one of these directions runs parallel to the main plane H of the energy storage device 12 (see Fig. 5). In the variant from Fig. 1 the detection area is as in Fig. 5 schematically shown laminographically scanned using co-rotational translational laminography (recording geometry).

[0031] In order to be able to move the X-ray source 22 or the X-ray detector 24 in the three mutually orthogonal directions, the positioning device of the imaging device 20 comprises several (preferably electromechanical) linear stages that are positioned relative to each other. The linear stages can be supported by a (massive) monolithic base, for example made of stone (see Fig. 1 below). Furthermore, as in Fig. 1, at least two vertical support elements in the form of optionally also monolithic elements (for example also made of stone) are provided, to which the X-ray source 22 or the X-ray detector 24 are mounted in a vertically displaceable manner.

[0032] In a further variant not shown, the positioning device can be realized by means of one or more industrial robots to which the X-ray source 22 or the X-ray detector 24 are attached in order to be able to be moved according to the recording geometry.

[0033] The X-ray source 22 is in the system of Fig. 1 is embodied, for example, as a cone-beam X-ray source, and the X-ray detector 24 as a so-called flat-panel (matrix) detector. To protect the surroundings from X-ray radiation from the X-ray source 22, the imaging device 20 further comprises a shielding housing 28 that defines an interior region of the imaging device 20. When the energy storage device 12 is in its second position, it is preferably arranged entirely within the interior region.

[0034] The system from Fig. 1, the X-ray source 22 is preferably aligned so that its central beam is emitted horizontally from the X-ray source 22. Accordingly, the spatially vertical axis runs in Fig. 5 horizontally. Advantageously, a first opening 32 can be formed on a wall of the shielding housing 28 running parallel to the central ray, in this case a ceiling section 30 of the shielding housing 28. The support device 40 can be configured accordingly to support the energy storage device 12 through the first opening 32, while the energy storage device 12 is in its Fig. 1. Furthermore, the support device 40 can transport the energy storage device 12 through the first opening 32 into the interior of the imaging device 20. For this purpose, the support device 40 comprises a crane hook 34 configured to support the energy storage device 12 during movement between the first and second positions. This means that the maximum load capacity of the crane hook 34 is preferably at least as great as the weight of the energy storage device 12.

[0035] The support device 40 further comprises a frame structure 42, on which eyelets are preferably formed, which, as in Fig. 1 are connected to the crane hook 34 by means of a lifting device in the form of a strap. On a side opposite the eyes, the support device 40 has a frame 44, by means of which the energy storage device 12 is Fig. 1 and Fig. 4 illustrates that it can be set up vertically. The energy storage device 12 can be displaced relative to the frame 44, preferably horizontally and / or parallel to the main plane H of the energy storage device 12, when fastened to the support device 40, when the energy storage device 12 is set up vertically. The frame 44 is trestle-shaped and has four legs, each of which protrudes in pairs from opposite longitudinal ends of the frame 44 from a longitudinal member, such that the frame 44 can be set up on the legs. The legs are preferably spaced apart from one another and overlap the base socket of the imaging device 20. The frame structure 42 is preferably mounted on the longitudinal member so as to be movable axially (i.e., in the longitudinal direction of the longitudinal member). The frame structure 42 can be pivotable about the longitudinal axis of the longitudinal member relative to the legs.

[0036] In order to fasten the energy storage device 12, which is ready for installation on the motor vehicle, to the support device 40, the frame structure 42 can comprise a first fastening device that is designed to be complementary to a second fastening device provided on the energy storage device 12. In the present case, the first and second fastening devices form a screw connection that corresponds to the screw connection of the energy storage device 12 on the motor vehicle. As shown in Fig. 4, the frame structure for mounting the energy storage device 12 can be placed on supports and the energy storage device 12 can be placed against the frame structure 42 or inserted into it. After connecting the first fastening device to the second fastening device, the support device 40 can be Fig. 4 indicated by the block arrow using the crane hook 34 and lifted into the detection area 26 in the second position (cf. Fig. 1 and Fig. 3). The main plane H of the energy storage device 12 is thus vertically aligned in the second position.

[0037] Although in the system of Fig. 1 the acquisition geometry of laminographic scanning which is Fig. 5 is the co-rotating translational laminography, alternatively, by means of the positioning device of the imaging device 20, other recording geometries can be used, in particular counter-rotating translational laminography (see Fig. 6), swing laminography (cf. Fig. 7) or (co-rotational) rotational laminography (cf. Fig. 8). In the translational and rotational laminographies, the X-ray source 22 and the X-ray detector 24 are linearly displaced in a first plane A and a second plane B, respectively, or rotated about a rotation axis perpendicular to the planes A, B, in order to generate the projection data set. Preferably, the first and second planes A, B run parallel to the main plane H of the energy storage device 12 when the latter is in its second position. Most preferably, the first and second planes A, B run parallel to each other. As shown in the Fig. 5 and Fig. As indicated in Figure 6, the X-ray source 22 and the X-ray detector 24 are moved parallel to each other in co-rotating translational laminography (true) and anti-parallel to each other in counter-rotating translational laminography to generate the projection data set. The latter results in the orientation of the central beam of the X-ray source 22 varying over time during scanning in order to remain directed towards the X-ray detector 24. In swing laminography, the energy storage device 12 is preferably pivoted about a rotation axis C, which is preferably perpendicular to the central beam, in order to generate the projection data set. As an alternative to the respective displacement of the X-ray source 22 and the X-ray detector 24, the energy storage device 12 can be displaced accordingly in the co-rotating acquisition geometries. Only the relative movement between these components is decisive.

[0038] The imaging device 20 is designed to generate, based on the at least one projection data set, individual images of different planes E1, E2 of the energy storage device 12, each oriented parallel to one another and / or parallel to the main plane H of the energy storage device 12, and / or a three-dimensional image of the energy storage device 12. The three-dimensional image can be formed from the individual images. The number of individual images can be at least 3, at least 10, or at least 50. These individual images or the three-dimensional image are preferably generated using digital tomosynthesis based on the projection data set.

[0039] Furthermore, the imaging device 20 is configured to shift the detection area relative to the energy storage device in order to laminographically scan several adjacent or overlapping regions of interest of the energy storage device, as described above. For this purpose, for example, the energy storage device 12 can be shifted accordingly in the environmental reference system. For each additional projection data set generated in this way, the above statements for the generated projection data set can apply accordingly. Furthermore, the individual images of adjacent sections of the energy storage device generated in this way can be combined to image a larger area of ​​the energy storage device with high resolution.

[0040] In order to de facto implement a zoom function, the system can further comprise a mounting plate 48 (here: perforated plate) with a predetermined first fastening point 50 for the support device 40 and a predetermined second fastening point 52 for the support device 40. The energy storage device 12 can be arranged at a first distance from the X-ray detector 24 or second plane B when the support device 40 is fastened to the first fastening point on the mounting plate 48, and at a second distance from the X-ray detector 24 or second plane B that is different from the first distance when the support device 40 is fastened to the second fastening point on the mounting plate 48. The larger of the first and second distances is associated with a larger zoom level.

[0041] One in Fig. The system 10 shown in Figure 2 differs from the system 10 shown in Fig. 1, the shielding housing 28 of the imaging device 20 has a side wall section 36 with a second opening 38. Instead of the crane hook 34, the lifting means, and the eyelets on the frame structure 42, the support device 40 comprises a linear table 46, by means of which the energy storage device 12 can be displaced between the first position and the second position through the second opening 38. The linear table 46 is arranged to displace the frame structure 42 together with the energy storage device 12 horizontally. Thus, the main plane H, the first and second planes A, B, and / or the further planes E1, E2 are also aligned horizontally. In this variant, the energy storage device 12 is rotated on a turntable for laminographic scanning.The linear stage can be configured, in particular, to displace the energy storage device 12 between the second opening 38 and the rotary table of the imaging device in order to move the energy storage device 12 into its second position on the rotary table. The main extension direction of the second opening 38 is also horizontal. Furthermore, the system 10 of FIG. Fig. 2 all features of system 10 Fig. 1.

[0042] In the Fig.In the method 100 shown in a highly simplified manner in Figure 9, the energy storage device 12 for the motor vehicle is examined laminographically according to the functionality of the system 10. In a first step 102 of the method 100, the energy storage device 12 is moved by means of a support device 40 between a first position and at least one second position. In particular, the energy storage device 12 can be moved from its first position outside the detection area 26 of the imaging device 20 into its second position. Then, in step 104, the detection area 26 can be scanned laminographically in order to obtain the at least one projection data set from the detection area 26. Further steps of the method 100 can include generating the individual images described above or the three-dimensional image.

Claims

[1] System (10) for the computer laminographic examination of an energy storage device (12) for a motor vehicle, comprising an imaging device (20) having an X-ray source (22) and an X-ray detector (24), wherein the imaging device (20) is designed to laminographically scan a detection area (26) located between the X-ray source (22) and the X-ray detector (24) in order to obtain at least one projection data set from the detection area (26), and a support device (40) for the energy storage device (12), wherein the energy storage device (12) is movable between a first position and at least one second position by means of the support device (40), wherein the energy store (12) is arranged in the first position outside the detection area (26) and in the at least one second position at least partially in the detection area (26). [2] System (10) according to claim 1, wherein the support device (40) comprises a frame structure (42) on which a first fastening device is formed, wherein the first fastening device is designed to be complementary to a second fastening device provided on the energy store (12). [3] System (10) according to claim 1 or 2, wherein the support device (40) has a frame (44) by means of which the energy storage device (12) can be set up vertically, wherein the energy storage device (12) is preferably horizontally displaceable relative to the frame (44) when fastened to the support device (40) when the energy storage device (12) is positioned vertically. [4] System (10) according to one of the preceding claims, wherein a shielding housing (28) of the imaging device (20) has a ceiling section (30) with a first opening (32), and the support device (40) is configured to support the energy storage device (12) through the first opening (32) while the energy storage device (12) is in its second position, and / or wherein the support device (40) comprises a crane hook (34) which is adapted to support the energy storage device (12) during movement between the first and the second position. [5] System (10) according to one of the preceding claims, wherein the shielding housing (28) of the imaging device (20) has a side wall portion (36) with a second opening (38), wherein the support device (40) comprises a linear table (46) by means of which the energy store (12) can be displaced between the first position and the second position through the second opening (38). [6] System (10) according to one of the preceding claims, further comprising a mounting plate (48) with a predetermined first fastening point (50) for the support device (40) and a predetermined second fastening point (52) for the support device (40), wherein the energy storage device (12) is arranged at a first distance from the X-ray detector (24) when the support device (40) is fastened to the mounting plate (48) at the first fastening point, and is arranged at a second distance from the X-ray detector (24) which is different from the first distance when the support device (40) is fastened to the mounting plate (48) at the second fastening point. [7] System (10) according to one of the preceding claims, wherein a main plane (H) of the energy storage device (12) is oriented vertically or horizontally in the second position. [8] System (10) according to the preceding claim, wherein the imaging device (20) is designed to displace the X-ray source (22) in a first plane (A) and / or the X-ray detector (24) in a second plane (B) in order to laminographically scan the detection area (26), wherein the first plane (A) or the second plane (B) is aligned parallel to the main plane (H) of the energy storage device (12). [9] System (10) according to one of the preceding claims, wherein the imaging device (20) is configured to perform the laminographic scanning of the detection area (26) according to one or more of the following acquisition geometries: parallel translational laminography; counter-translational laminography; rotational laminography; swing laminography. [10] System (10) according to one of the preceding claims, wherein the imaging device (20) is designed to generate, on the basis of the at least one projection data set, individual images of different planes (E1, E2) of the energy storage device (12) aligned parallel to one another and / or parallel to the main plane (H) of the energy storage device (12) and / or a three-dimensional image of the energy storage device (12). [11] Method (100) for examining an energy storage device (12) for a motor vehicle by means of a computer laminographic imaging device (20) having an X-ray source (22) and an X-ray detector (24), the method (100) comprising the following steps: Moving (102) the energy storage device (12) by means of a support device (40) between a first position and at least one second position, wherein the energy storage device (12) is arranged in the first position outside a detection area (26) of the imaging device (20) located between the X-ray source (22) and the X-ray detector (24) and in the at least one second position at least partially in the detection area (26); and laminographic scanning (104) of the detection area (26) to obtain at least one projection data set from the detection area (26).

Images