Positioning auxiliary device for motor vehicle test bench

Abstract

The utility model relates to a positioning assistance device for a motor vehicle test board for testing a driving assistance system of an automated motor vehicle, said positioning assistance device having a first template with a first pattern for color marking a substrate and an adjustment mark for a second template.

Description

Technical Field

[0001] The present disclosure relates to a positioning aid for a motor vehicle test bench for testing a driver assistance system of an automated motor vehicle, a method for producing such a positioning aid, and the use of such a positioning aid when testing a driver assistance system of an automated motor vehicle. Background Art

[0002] In modern motor vehicles, in particular automobiles, driver assistance systems known as parking assistance (English: Park Distance Control PDC) are increasingly being installed, which are intended to facilitate parking of the motor vehicle, in particular in confined spaces.

[0003] For this purpose, ultrasonic-based systems are known from the prior art. These systems operate with ultrasonic sensors integrated into the front and / or rear bumper of the vehicle. Two-, four-, six-, eight-, and twelve-channel systems are distinguished, meaning two, four, or six circular ultrasonic sensors are installed per bumper. These sensors transmit and receive ultrasonic signals and transmit the acquired data to a controller, which calculates the distance between the vehicle and the object that reflected the ultrasonic signal from the ultrasonic signal's propagation time.

[0004] Motor vehicle manufacturers are obliged to design such vehicle components so that they meet the relevant legal standards. To check whether vehicle components meet the relevant legal standards, various tests are carried out on motor vehicle test benches within the scope of so-called certification. One of these tests is defined in UN Regulation 158, which is "Uniform provisions concerning the approval of devices for reversing motion and motor vehicles with regard to the driver's awareness of vulnerable road users behind vehicles."

[0005] According to UN Regulation 158, a motor vehicle, particularly an automobile, must be positioned at a distance of 30 cm relative to a test surface with a length of 3.5 m and a width of 1.8 m. The rear side of the motor vehicle, equipped with the sensor system of the driver assistance system to be tested, such as a reversing camera and / or a Park Distance Control (PDC), faces the test surface. Various standardized test objects, so-called reference tubes or targets, are positioned at predetermined locations / positions on the test surface. These predetermined positions have predetermined or standardized longitudinal and lateral distances from the center of the motor vehicle. This means that UN Regulation 158 specifies the positions at which reference tubes can be positioned for testing.

[0006] According to the legal provisions of UN ECE 158, the target objects or targets must be precisely positioned. A disadvantage of the existing technology is that the positioning of the tube on the test surface and relative to the vehicle is done manually. This requires considerable time, not only for positioning but also for recording the test. In critical certifications, complex lists of objects are required instead of simple lists to ensure a comprehensive inspection. This may require setting up lists in parallel and preparing multiple test surfaces very quickly. Manually creating these position markers is very time-consuming, error-prone, and costly. This means that efficient measures are needed with regard to the cost, quality, speed, and repeatability of such tests. Utility Model Content

[0007] Against the background of this prior art, the object of the present disclosure is to specify a device and a method which are each suitable for at least overcoming the above-mentioned disadvantages of the prior art.

[0008] This object is achieved by the features of the independent claim. The dependent claims contain preferred developments of the invention.

[0009] The object is hereby achieved by a positioning aid for a motor vehicle test bench for testing driver assistance systems of automated motor vehicles.

[0010] The positioning aid has a first template with a first pattern for color-coding the substrate and adjustment markings for a second template.

[0011] In other words, a device is provided that allows its user to quickly, easily, and precisely transfer a predetermined pattern, i.e., the pattern formed in the first template, to the substrate on which the first template is located using a colorant, such as spray paint and / or a paint roller. A colored marking is understood here to mean a permanent or temporary marking, such as one that can be removed with water, that is preferably visible to the naked eye after application to the substrate. The terms color or colored are to be understood broadly and include, in addition to the basic colors red, green, blue, cyan, magenta, yellow, white, and black, all conceivable mixtures of these basic colors. The first template can have a rectangular shape.

[0012] The first pattern may extend over the entire area or a partial area of ​​the first template.

[0013] The adjustment mark can have one or more individual marks on or in the first template. The adjustment mark should in particular be applied to the upper side or in the upper side of the first template, that is, on or in the side facing away from the substrate. The adjustment mark can also be understood as an identification that is installed, in particular permanently installed, on the first template. The adjustment mark can be applied to the first template in or on the template during the manufacturing process described in further detail below, in particular together with the pattern. Depending on the material of the first template, the application or installation includes stamping, laser processing and / or sticking labels. The adjustment mark should in particular be applied in a predetermined position and shape.

[0014] Optional embodiments of the positioning aid described above are described in detail below.

[0015] The positioning aid can have a second template with a second pattern for color-marking the substrate and a recess implemented as a through-hole. The recess can be arranged so that when the adjustment mark and the recess coincide, the first pattern and the second pattern are oriented relative to each other in a predetermined position.

[0016] That is, a positioning aid having a first and a second template as a set is protected. This protects the spatial juxtaposition of components whose functions are coordinated with each other. However, the present disclosure is not limited to this, and, for example, a system can also be provided in which the second template is arranged on the first template, i.e., the two templates are in physical contact.

[0017] The second template can be positioned above the first template in a predetermined position, as viewed from the base. Thus, the top of the first template can contact the bottom of the second template. It is conceivable that the first and / or second templates have markings indicating the corresponding top and / or bottom sides. This can prevent errors when using positioning aids.

[0018] The first and second patterns can at least partially overlap in a predetermined configuration. In other words, the first and second patterns can produce a (unique) predetermined pattern. Thus, for example, a multi-color pattern can be produced. This multi-color pattern can, for example, be first applied using a first template and the color white, with individual white components of the pattern produced using the first template subsequently being highlighted using a second template and a color different from white, such as red.

[0019] The first template and the second template may each have a marking that enables the first template to be clearly assigned to the second template. Additionally or alternatively, the first and / or second template may have a calibration marking. Additionally or alternatively, the first and / or second template may have a marking for clearly identifying the corresponding template.

[0020] The positioning aid can have a counterweight for weighting and fixing the first and / or second formwork. This is particularly advantageous when the positioning aid is used outside a closed space, because it can prevent the positioning aid from slipping due to external influences, such as wind.

[0021] The first pattern may include first dot-shaped indentations arranged in a grid pattern, optionally at intervals of 10 cm x 10 cm. The first pattern may include second indentations arranged circularly around corresponding first indentations. The first pattern may include third indentations arranged squarely around corresponding first indentations. The first pattern may include fourth indentations arranged in an X-shape around corresponding first indentations.

[0022] The second pattern may have one, optionally two, three or more elongated indentations arranged parallel to each other.

[0023] The first and second patterns can be supplemented in the manner described above and result in the pattern shown in the aforementioned UNECE R.158 (United Nations Regulation No. 158 on the approval of reversing devices and motor vehicles concerning the perception by the driver of unprotected road users behind the vehicle [2021 / 828] (OJ L 184 25.05.2021, p. 20, ELI: http: / / data.europa.eu / eli / reg / 2021 / 828 / oj)), for example, the pattern shown in Annex 10. Such a pattern can have a base length of 0.8 m (measured in the longitudinal direction of the motor vehicle to be tested) and, depending on the width of the motor vehicle to be tested, a width of 1.70 m (for a vehicle width of 1.67 m) or 1.80 m (for a vehicle width of 1.74 m). The first punctiform indentation described above, once transferred to the base surface, can form the desired position of the center point of the tubular target. The second to fourth indentations described above can serve as positioning aids. Thus, the second circular indentation can indicate the desired position of the perimeter of the target. The third square indentation can extend parallel to the longitudinal axis or width of the vehicle to be tested, or parallel to the outer edge of the substrate. The fourth X-shaped or cross-shaped indentation can extend parallel to the diagonal of the square indentation. The pattern provided in the second template can be used to highlight various parts of the first pattern with color, for example, to orient the vehicle to be tested relative to the pattern and / or to highlight particularly relevant desired positions of the target.

[0024] The present disclosure also relates to a method for manufacturing a positioning aid as described above, wherein the method comprises providing a plate or a mat, forming, e.g. milling and / or cutting, a first pattern or a second pattern in the plate or the mat, and measuring the pattern under predetermined ambient conditions, e.g. a predetermined temperature.

[0025] The present disclosure also relates to the use of the positioning aid described above when testing a driver assistance system for an automated motor vehicle. This use can involve applying a colored marking to a substrate using the positioning aid. Additionally or alternatively, the positioning aid can involve checking (e.g., manually) the colored marking applied to the substrate. In the latter case, the positioning aid serves as a measuring or testing device.

[0026] What has been described above with respect to the positioning aid also applies analogously to its production method and its use, and vice versa.

[0027] What has been described above can be summarized in other words and with reference to more specific embodiments as follows, wherein this merely comprises a description of optional features and does not limit the present disclosure.

[0028] Before conducting tests or obtaining certification from technical service organizations and institutions, a test site must be defined. This is precisely specified in the test plan and, primarily, in the legal regulations. The corresponding location must be transferred to a correspondingly existing and defined surface (rough, smooth, concrete, asphalt, etc.) and approved as suitable by the relevant institution's representative.

[0029] To implement the present disclosure, one or more CNC laser-cut or CNC milled templates are used. These templates fully comply with legal regulations and are certified by a technical service or calibration laboratory. This can be demonstrated by corresponding markings.

[0030] At the time of certification, temporary color can be quickly applied to selected road surfaces using spray paint or a color roller. Multi-color marking can be performed very quickly and accurately by applying multiple calibrated templates containing calibration points. Position markings can be used to precisely set targets or create anchors for them.

[0031] For the implementation of the present invention, not only rollable mats but also thin plates can be considered, where a thickness of approximately 5 mm may be sufficient. The plate or mat is stable in longitudinal extension and can be processed by laser cutting methods or CNC milling at a predetermined temperature. The relevant contours are prescribed by law and converted into notches by a CAD program. The template thus created can be constructed in one piece or in multiple pieces. In addition to markings that comply with legal requirements, synchronization marks and inspection holes are machined into the template. This ensures that the templates are precisely aligned with each other when multiple templates are used. After the templates are created, they can be measured, certified and calibrated under different temperature and climatic conditions. Protective packaging can also be provided.

[0032] On-site, the template can be used so that the specific working area of ​​the template is checked using calibrated temperature and climate measurement technology. The template is secured in place by appropriate counterweights. The marking is then applied to the base surface using a single- or multi-colored temporary paint by spraying or rolling the colors. This creates a regulatory-compliant marking of the target object that can be quickly replicated at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Refer to the following Figures 1 to 4 An embodiment is described.

[0034] Figure 1 A schematic top view of a positioning aid device of a motor vehicle test bench for testing a driver assistance system of an automated motor vehicle, and

[0035] Figure 2 Schematically shown in a top view Figure 1 Each feature or part of the positioning aid,

[0036] Figure 3 Schematic diagram of a device for testing a driver assistance system of an automated vehicle Figure 1 A flow chart of a method of positioning an auxiliary device, and

[0037] Figure 4 Schematic diagram for manufacturing Figure 1 Flowchart of a method for positioning an assist device.

[0038] In the following description of the drawings, Figure 1 and Figure 2 The same reference numerals are used for the same objects in the present invention. DETAILED DESCRIPTION

[0039] exist Figure 1 The positioning aid device 1 shown in FIG. 1 of a motor vehicle test bench (also not shown) for testing a driver assistance system of an automated motor vehicle (not shown) comprises a first template 2 and a second template 3 .

[0040] The first template 2 is arranged in Figure 1 On the base or bottom of the motor vehicle test bench shown in dashed lines.

[0041] The rectangular first template 2 comprises an outer edge region 21 with four adjustment marks 23 for the second template 3 and six counterweights 24 for weighting and fixing the first template 2 on or at a substrate. Furthermore, the first template 2 comprises calibration marks or calibration labels 27 in the edge region 21, which, in addition to checking the calibration of the first template 2, also enable unambiguous identification of the first template 2 and unambiguous assignment of the first template 2 to the second template 3.

[0042] In a first step S11 of using the positioning aid 1 , the above-described state of the first template 2 is established, ie the first template 2 is placed on a substrate, optionally weighted with a counterweight 24 and optionally checked for calibration labels 27 .

[0043] The first template 2 also includes an inner area 22 in which a first pattern 25 is provided for color marking the substrate. The inner area 22 may have a bottom surface with a length of 0.8 m (measured in the longitudinal direction of the motor vehicle to be tested) and a width of 1.70 m (when the motor vehicle width is 1.67 m) or 1.80 m (when the motor vehicle width is 1.74 m) depending on the width of the motor vehicle to be tested. The first pattern 25 is only provided in the inner area. Figure 1 , and can extend in a grid-like manner substantially over the entire inner region 22 of the first template 2 .

[0044] The first pattern 25 is assembled from individual sub-parts or elements 26 which are arranged one above the other to produce the first pattern 25, wherein one of these elements 26 is Figure 2 The first pattern 25 has first dot-shaped indentations 261 arranged in a grid pattern, which are arranged at intervals of 10 cm×10 cm relative to each other (see also Figure 1 Double arrow in the middle). In addition, especially from Figure 2 As a result, second notches 262 are arranged circularly around corresponding first notches 261, third notches 263 are arranged squarely around corresponding first notches 261, and fourth notches 264 are arranged X-shaped around corresponding first notches 261. The notches 261-264 are each implemented as a through hole, so that a colorant, such as a spray and / or roller color, can pass through each notch 261-264, and thus the first pattern 25 can be applied to the substrate using the colorant applied to the first template.

[0045] In a second step S12 of using the positioning aid 1 , a colorant is applied to the first template 2 , so that after the second step S12 of using, a first pattern is applied to the substrate.

[0046] The first point-shaped notch 261 described above, once transferred to the bottom, can form the desired position of the center point of the tubular target (not shown). The second to fourth notches 262-264 described above can be used as additional auxiliary means for locating the target.

[0047] The second template 3 Figure 1 In the illustrated state, second template 3 is arranged above first template 2, as viewed from the substrate. That is, second template 3 is located on the upper side of first template 2. Second template 3 includes a second pattern 31 for color-coding the substrate and four indentations 32, embodied as through-holes. These indentations are arranged such that, when adjustment markings 23 and indentations 32 coincide, first and second patterns 25, 31 are oriented relative to one another in a predetermined position. Second pattern 31 provided in second template 3 can be used to color-highlight individual portions of first pattern 25, for example, to orient a motor vehicle to be tested relative to first pattern 25 and / or to highlight particularly relevant desired positions of an object.

[0048] In addition, the second template 2 also comprises, in its edge region, calibration marks or calibration labels 33, like the first template 2, which, in addition to enabling the calibration of the second template 2 to be checked, also make it possible to clearly identify the second template 3 and to assign it unambiguously to the first template 2. Furthermore, the second template 3 is also weighted with a counterweight 34 in order to fix it relative to the first template 2.

[0049] In the third step S13 of using the positioning aid 1, the above-described state of the second template 3 is established, i.e. the second template 3 is placed on the first template 2 in such a way that the adjustment mark 23 and the notch 32 coincide, optionally weighted with (three) counterweights 34 and optionally checked for the calibration label 33.

[0050] In a fourth step S14 of using the positioning aid 1, a colorant is applied to the second template 2 so that after the fourth step S14 of using, the first and second patterns 25, 32 are applied to the substrate in a partially overlapping manner. Figure 2 As can be clearly seen in the figure, the second pattern 31 is shown separately on the right. The second pattern 31 has three elongated notches 311 arranged parallel to each other. The individual elongated notches 311 of the second pattern 31 have such a spacing relative to each other (for example 10 cm, see above for notches 261, in Figure 2 Indicated by double arrows in the figure), so that the third notches 263 of a row of first patterns 25 arranged in a square manner around the corresponding first notches 261 overlap with the corresponding elongated notches 311.

[0051] It is also conceivable that the positioning aid 1 is used only with the first and third steps S11 , S13 if a marking has already been applied to the substrate and the positioning aid 1 is used as a test means for the already applied marking.

[0052] exist Figure 4 Also shown is a flow chart of a method for producing the positioning aid 1 described above, wherein the method comprises providing a plate or mat in a first step S21, applying a first and a second pattern 25, 31 into the plate or mat in a second step S22, for example by laser milling and / or cutting, and measuring the patterns 31, 25 under predetermined ambient conditions in a third step S23.

[0053] Reference Signs List

[0054] 1 Positioning aid

[0055] 2 First Template

[0056] 21 Marginal Area

[0057] 22 Internal Area

[0058] 23 Adjustment Mark

[0059] 24 counterweight

[0060] 25 First Pattern

[0061] 26 Elements of the first pattern

[0062] 261-264 gap

[0063] 27 Calibration Label

[0064] 3 Second template

[0065] 31 Second Pattern

[0066] 311 Long Notch

[0067] 32 Gap

[0068] 33 Calibration Label

[0069] 34 counterweight

[0070] Steps to use S11-S14

[0071] S21-S23 steps of the manufacturing method

Claims

1. A positioning assistance device (1) for a motor vehicle test bench for testing a driving assistance system of an automated motor vehicle, characterized in that: The positioning aid (1) has a first template (2), which has a first pattern (25) for color marking a substrate and an adjustment mark (23) for a second template (3), wherein the positioning aid (1) has the second template (3), which has a second pattern (31) for color marking the substrate and a notch (32) implemented as a through hole, the notch being arranged so that when the adjustment mark (23) and the notch (32) coincide, the first pattern (25) and the second pattern (31) are oriented relative to each other in a predetermined position, wherein the second template (3) is arranged above the first template (2) in the predetermined position as viewed from the substrate.

2. The positioning aid device (1) according to claim 1, characterized in that The first pattern (25) and the second pattern (31) at least partially overlap in the predetermined configuration.

3. The positioning aid device (1) according to claim 1 or 2, characterized in that - the first template (2) and the second template (3) each have a marking which enables the first template (2) to be unambiguously assigned to the second template (3), - the first template (2) and / or the second template (3) have calibration marks (27), and / or The first template (2) and / or the second template (3) have a marking for unambiguously identifying the corresponding template (2, 3).

4. The positioning aid device (1) according to claim 1 or 2, characterized in that The positioning aid comprises a counterweight for weighting and fixing the first template and / or the second template.

5. The positioning aid device (1) according to claim 1 or 2, characterized in that The first pattern has: - first point-shaped indentations (261) arranged in a grid pattern, optionally at intervals of 10 cm x 10 cm, and - second indentations (262) optionally arranged circularly around corresponding first indentations (261), - third notches (263) optionally arranged in a square pattern around the corresponding first notches (261), - a fourth notch (264) optionally arranged in an X-shape around the corresponding first notch (261).

6. The positioning aid device (1) according to claim 1 or 2, characterized in that The second pattern has one elongated notch, or optionally two or more elongated notches arranged parallel to each other.

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