Rotating base for wheel alignment and wheel alignment device

Description

[0001] The present invention relates to a rotating base for wheel alignment for a motor vehicle measuring station or for a motor vehicle lifting platform as well as a wheel alignment device with a motor vehicle measuring station or a motor vehicle lifting platform and such a rotating base.

[0002] When measuring the chassis on a vehicle measuring station or a vehicle lift, turntables are often used, e.g. for the front wheels of the vehicle, on which the vehicle's wheels are supported and by means of which the vehicle wheels can be rotated, for example to determine the maximum steering angle.

[0003] EP 1 184 641 B1 discloses a method for wheel alignment using a wheel alignment device and a wheel alignment device with measuring heads for determining the wheel positions of a motor vehicle at a measuring station. From the wheel positions, the wheel alignment device determines the wheel-specific data, such as the geometric driving axis, camber, toe, and wheel offset. Weighing units, which can be arranged in the sliding and / or rotating plates, measure the vehicle's wheel contact forces, calculate measured variables such as wheel load, axle load, total weight, wheel load, and axle load distribution, and incorporate the resulting load condition of the vehicle into the wheel alignment.

[0004] The installation of the rotating and sliding plates shown in EP 1 184 641 B1 is complex. Furthermore, the rotating and sliding plates shown there are prone to damage, not very user-friendly, and difficult to replace.

[0005] From US 6 047 594 A a digital turntable device for aligning steering systems of vehicles according to the preamble of claim 1 is known.

[0006] DE 100 43 359 A1 shows a method for wheel alignment and a wheel alignment device which comprises a weighing device coupled to the wheel alignment device for measuring the wheel contact forces of the vehicle.

[0007] It is therefore an object of the present invention to provide a rotating base for wheel alignment that is easy to install and operate, and can also be easily replaced if necessary. Furthermore, this rotating base should enable highly accurate wheel alignment and be user-friendly.

[0008] Furthermore, a wheel alignment device comprising a motor vehicle measuring station or a motor vehicle lifting platform and at least one rotating base is to be specified, which can be easily installed and put into operation, which enables high-precision wheel alignment and at the same time is designed to be particularly user-friendly.

[0009] These problems are solved by the subject matter of the independent claim. Advantageous developments arise from the dependent patent claims.

[0010] A rotating base according to the invention is defined in claim 1.

[0011] With such a turntable, the wheel contact forces acting from the vehicle wheel onto the turntable can be precisely measured using the weighing device.

[0012] Such a turntable allows any rotational position of the vehicle wheel for precise chassis measurement using the rotating turntable.

[0013] Because the rotating base is mobile and wireless, it can be easily installed and put into operation and, if necessary, uninstalled, replaced, or put away without the need for laborious wiring or unwiring.

[0014] The local transmitting unit sends the measured wheel contact force wirelessly to a unit of a wheel alignment device.

[0015] Such a unit of a wheel alignment system, to which the measured wheel contact force and, in particular, the measured rotation angle / steering angle are sent, can be the wheel alignment system's data processing unit or display unit, but also a mobile data processing and display device, such as a mobile phone or tablet computer. There, this data can be processed, in particular, incorporated into a wheel alignment, and / or stored.

[0016] Such a unit of a wheel alignment device can also be a so-called cloud, i.e. a network of servers on which this data is processed, in particular included in a wheel alignment and / or stored.

[0017] The local display unit allows the measured wheel contact force to be displayed directly on the turntable, which increases user-friendliness because the wheel contact force can be displayed and monitored not only on the wheel alignment device but also on the turntable itself.

[0018] The local battery supplies power to the weighing device, the local transmitter unit, and the local display unit. This local battery is typically recharged from time to time. For this purpose, the local battery can be equipped with a corresponding power supply connection.

[0019] A rotating base according to the invention can also be referred to as an electronic radiast scale.

[0020] With the wheel base according to the invention, the weight distribution on the vehicle can be determined with high precision.

[0021] In conjunction with a wheel alignment, the vehicle's chassis can be optimally tuned. This not only positively influences the vehicle's cornering stability, but also its overall handling.

[0022] A rotating base according to the invention can be used at any motor vehicle measuring station or motor vehicle lifting platform and is therefore compatible with all common motor vehicle measuring stations and motor vehicle lifting platforms.

[0023] A rotating base according to the invention is particularly robust and has a long service life.

[0024] In addition, a turntable designed according to the invention is cheaper to manufacture than conventional cable-connected turntables because, for example, stage cabling can be eliminated. Furthermore, cables are prevented from being damaged, for example, by vehicles driving over them, and needing to be replaced.

[0025] In other words, the rotating base according to the invention is equipped with local intelligence. The wheel contact force of the vehicle wheel and, in particular, the rotation angle / steering angle of the vehicle wheel are determined and displayed locally and transmitted wirelessly to a unit of a wheel alignment device. A local battery supplies the weighing device, in particular the rotation angle sensor, the local transmitting unit, and the display with power / energy.

[0026] The recorded weight values ​​can be processed in the axle measurement program, allowing the specified target values ​​for the vehicle to be adjusted.

[0027] According to the invention, the weighing device is designed in the form of two beam sensors arranged on opposite sides of the base, in particular on the front and rear sides within the base, which extend over a large part of the inside of the base. The beam sensors each have, in particular, two contact points.

[0028] Such beam sensors are particularly compact and robust and allow the reliable determination of the wheel contact force exerted by the vehicle wheel on the turntable.

[0029] According to a first embodiment, the turntable further comprises a rotation angle sensor configured to determine the rotation angle of the turntable relative to the base or the steering angle of the vehicle wheel supported on the turntable. The rotation angle sensor can be configured as a centrally arranged encoder.

[0030] The local transmitting unit is further designed, in particular, to transmit the angle of rotation to a unit of a wheel alignment device.

[0031] The local display unit is also designed to display the angle of rotation.

[0032] The local battery is still designed to supply the angle sensor with energy.

[0033] Equipping the turntable in this version with such a rotation angle sensor increases its functionality. In addition to the wheel contact force of the vehicle wheel, the turntable can now also determine the angle of rotation of the turntable relative to the base and thus relative to the vehicle measuring station / vehicle lift, or the steering angle of the vehicle wheel supported on the turntable, and incorporate this into the wheel alignment.

[0034] By means of weighing devices designed in this way and, if provided, by means of such a rotation angle sensor, a measurement accuracy of the wheel contact force or the rotation angle / steering angle can be achieved with deviations of less than 0.5%, in particular of less than 0.2%.

[0035] The local battery can be designed to ensure a battery life of up to 24 hours in full operation. Furthermore, the local battery can be designed to provide a power supply of, for example, 5 V for the weighing device and / or the local transmitter unit and / or the display and / or the angle sensor.

[0036] According to a further embodiment, the rotating base is interchangeable between different positions of the motor vehicle measuring station or the motor vehicle lifting platform without unplugging and rewiring.

[0037] According to a further embodiment, the rotating base can be removed without unplugging and installed at a position of the motor vehicle measuring station or the motor vehicle lifting platform without cabling.

[0038] This results in particular flexibility and fast setup times.

[0039] According to a further embodiment, the local display unit, the local battery and the local transmitting unit are accommodated in a common housing.

[0040] The local display unit or the housing can be arranged on the outside of the base, relative to the vehicle measuring station or the vehicle lifting platform.

[0041] In particular, the local display unit or the housing can be arranged between two handles on the outside of the base, relative to the motor vehicle measuring station or the motor vehicle lifting platform.

[0042] A local display unit in which the local battery and the local transmitter unit and in particular also the local power supply unit are housed in a common housing is particularly robust and insensitive to damage and is designed to be particularly space-saving.

[0043] By locating the local display unit or housing on the outside of the base, the data displayed on the display, such as the measured wheel contact force and the rotation angle / steering angle, can be easily read. The display is positioned particularly on the top of the housing.

[0044] If the local display unit / housing is positioned between two handles on the outside of the base, it is protected by the handles, e.g., from accidental impacts or applied forces. This protective effect is particularly effective if the handles extend at least to a plane that is further outward than the outer end of the housing, relative to the vehicle test station or vehicle lift.

[0045] According to a further embodiment, the local display unit is designed as an LCD or OLED display.

[0046] A display designed in this way represents a particularly good compromise between readability of the values ​​on the one hand and power consumption on the other.

[0047] According to a further embodiment, the local display unit is designed as a monochrome display and / or as a multi-display display.

[0048] According to a further embodiment, the local transmission unit is configured to transmit the measured wheel contact force and / or the rotation angle / steering angle to a unit of a wheel alignment device at at least one operating frequency. The operating frequency can be, in particular, an operating frequency of 433 MHz, 915 MHz, 920 MHz, or 2.4 GHz.

[0049] By transmitting the measured wheel contact force and / or the rotation angle / steering angle at at least one operating frequency, wired transmission and the resulting hardware complexity can be eliminated. Furthermore, a particularly suitable operating frequency can be selected for this purpose.

[0050] According to a further embodiment, the local transmission unit is configured to allow the selection of various operating frequencies at which the measured wheel contact force and / or the rotation angle / steering angle are transmitted to a unit of a wheel alignment device. The selectable operating frequencies can, in particular, be two or more of the following operating frequencies: 433 MHz, 915 MHz, 920 MHz, and 2.4 GHz.

[0051] This embodiment eliminates the need for wired transmission and the resulting hardware overhead. Furthermore, the measured wheel contact force and / or the determined rotation angle / steering angle can be transmitted at various, individually selectable and well-suited operating frequencies, particularly to a unit of a wheel alignment system.

[0052] The operating frequencies can be selected depending on the wheel alignment device and the individual application situation.

[0053] As a result, the rotating base according to the invention can be adapted particularly well and individually to different wheel alignment devices and different situations.

[0054] The invention also relates to a wheel alignment device as defined in claim 9.

[0055] All advantages and embodiments described above and below with reference to the rotating base according to the invention apply to the wheel alignment device according to the invention. These are not described again here to avoid repetition.

[0056] Using such a wheel alignment system, highly precise wheel alignment can be performed. The wheel contact forces are not only available, for example, in a data processing unit or a display unit of the wheel alignment system, but can also be read and monitored directly on the at least one rotating base.

[0057] Such a wheel alignment system can be installed and commissioned particularly quickly. Replacing turntables is easy and requires no complicated cabling or uncables.

[0058] By the wheel alignment device determining at least one of the values ​​from the wheel contact force values ​​received from the turntables and including it in the wheel alignment, which is selected from the group: Weight per wheel, weight distribution per axle, difference between front and rear, weight distribution per side, difference between left and right, cross-over weight, cross-over weight in percent, wedge, wedge in percent, total weight, and current center of gravity of the entire vehicle are used to determine the weight distribution on the vehicle with high precision and to include it in the chassis measurement.

[0059] This allows the chassis of a vehicle parked on the vehicle measurement station / vehicle lift of the wheel alignment facility to be optimally tuned. This positively influences not only cornering stability but also the overall handling of the vehicle.

[0060] With the aid of the at least one rotating base according to the invention, which is used in the wheel alignment device according to the invention, the static weight distribution and the determination of the center of gravity can be integrated into the wheel alignment.

[0061] This means that the vehicle is always on a stable and level surface, which enables particularly precise measurement results for the chassis measurement.

[0062] In addition, chassis-specific data such as geometric driving axis, camber, toe and wheel offset that have changed due to load redistribution can be corrected directly by the chassis measurement device.

[0063] When using a chassis measurement device according to the invention for the chassis measurement of sports cars used in motorsports, optimal tuning of the vehicle can be achieved and better lap times can be made possible.

[0064] The software running on the wheel alignment device can clearly display all measured values ​​and, for example, show live values ​​of the four vehicle wheels using miniscreens.

[0065] In addition, such software can create a weighing report with company and customer information.

[0066] A turntable according to the invention enables a digital live display of the measured wheel contact forces and / or the measured rotation angle / steering angle directly on the turntable itself.

[0067] According to a first embodiment, the chassis measurement device is further designed to determine the static weight distribution of the measured motor vehicle from the wheel contact force values ​​received from the turntables and / or to determine the center of gravity of the measured motor vehicle and to include it directly in the wheel alignment for more precise determination of the chassis-specific data.

[0068] According to a further embodiment, a rotating base with a rotation angle sensor of the type described above is arranged at at least one vehicle wheel position, in particular at at least two front vehicle wheel positions. The wheel alignment device is further configured such that the rotation angle or steering angle value received from the at least one rotating base is included in the wheel alignment.

[0069] If a rotating base according to the invention with a rotation angle sensor is arranged at at least one vehicle wheel position, in particular at at least two front vehicle wheel positions, and the wheel alignment device is further designed such that the rotation angle or steering angle value received from the at least one rotating base is included in the wheel alignment, the functionality and accuracy of the wheel alignment device can be further increased.

[0070] The invention is explained in more detail below using exemplary embodiments with reference to the accompanying figures. Figure 1 shows a schematic perspective view of a rotating base according to an embodiment of the present invention, obliquely from above; Figure 2 shows a schematic bottom view of the turntable from Figure 1 ; and Figure 3 shows a schematic bottom view of the turntable from Figure 1 , which also has a rotation angle sensor.

[0071] The Figure 1 The rotating base 2 shown has a base plate 4 with a substantially rectangular basic shape and a rotating plate 8 resting on the base plate 4 for supporting a vehicle wheel. The base plate 4 represents the base of the rotating base 2, with which the rotating base 2 stands, for example, on the rails of a motor vehicle measuring station or a motor vehicle lifting platform. The rotating plate 8 can also be referred to as a turntable 8.

[0072] One can easily imagine a motor vehicle measuring station or a motor vehicle lifting platform with rotating bases 2, in particular at the two front vehicle wheel positions, by placing a rotating base 2, as shown in the Figures 1 to 3Of course, a turntable 2 can also be positioned at the positions of the running rails corresponding to the two rear vehicle wheel positions, as shown in the Figures 1 to 3 shown, positioned.

[0073] For the turntable 2, as shown in Figure 1 shown, one can see a circular or annular blank insert 6 below the rotary plate 8 and on / in the base plate 4. This blank insert 6 is surrounded on the base plate side by a ring, which is in Fig. 1 is clearly visible.

[0074] To enable rotation of the rotating plate 8 relative to the base plate 4, a circular ball cage with corresponding recesses into which steel balls are inserted from above can be arranged above the circular insert 6 and below the rotating plate 8, viewed from bottom to top. Another circular insert, the underside of which rests on the steel balls, can be arranged (not shown). The steel balls are robust, and the ball cage is designed to be smooth-running. The circular inserts ensure a precise surface. Furthermore, a centering disc can be provided within the ball cage (also not shown).

[0075] Thus, the rotating plate 8, together with the additional circular insert, can be precisely rotated relative to the steel balls, the ball cage, and the circular insert 6, and thus relative to the base plate 4. At the same time, the rotating base 2 can absorb and measure high contact forces from motor vehicle wheels.

[0076] Furthermore, the turntable 8 has two Figure 1 projections and locking pins 10 directed outwards, relative to the motor vehicle measuring station or the motor vehicle lifting platform, with which it is secured against slipping relative to the rotating base 2. The locking pins 10 are held by means of a wire that is attached to the outside of the base plate 4, each outside next to the side handles 12.

[0077] On the outer side of the base plate 4, again relative to the motor vehicle measuring station or the motor vehicle lifting platform, two lateral handles 12 are arranged at a distance from one another in order to be able to transport the rotating base 2 as a whole, e.g. to place it on the motor vehicle measuring station or the motor vehicle lifting platform and to remove it from it.

[0078] On the outside of the base plate 4, in a central space between the two side handles 12, a housing with a local display unit 14 with battery and transmitter unit is arranged.

[0079] In Figure 1 It is clearly visible that the display is readable from above. The transmitter unit is arranged on the housing of the local display unit 14, forming an outward projection.

[0080] Furthermore, a socket is arranged on the outside of the local display unit 14 for wired charging of the local battery of the local display unit 14.

[0081] The local display unit 14 can in particular be screwed to the outside of the base plate 4 and connected by means of a cable to the Figure 2 and 3 weighing devices 18 explained in more detail and with the one with reference to the Figure 3 The rotary encoder 24 can be connected to the rotary encoder 24, which is explained in more detail. For this purpose, an opening can be provided in the outside of the base plate 4 through which such a cable runs.

[0082] The upper surface of the rotating plate 8 can be provided with a suitable profile of grooves or ribs to provide increased friction for the upright motor vehicle wheel and prevent it from slipping. In the present embodiment, the profile is designed as a grooved profile with concentric, annular grooves and with radially outwardly extending grooves.

[0083] In the bottom view of the turntable in Figure 2It can be seen that the lower contact surface of the base plate 4 is formed by the lower ends of a rib structure 16. This rib structure 16 ensures sufficient stability of the base plate 4 while simultaneously reducing weight and material usage.

[0084] The weighing device according to the invention is designed in the form of two beam sensors / weighing beams 18, which are arranged on the front and rear sides within the base plate 4, in particular adjacent to the front and rear outer walls of the base plate 4. The two weighing beams / weighing beam sensors 18 extend over a large part of the inside between the outer wall and the inner wall of the base plate 4, in particular over approximately 80 to 95% of this free inside. The weighing beams / weighing beam sensors 18 each have, for example, two in Figure 2The contact points are shown on the outside and inside. They are each connected to the local display unit 14 via a cable.

[0085] Furthermore, Figure 2 A central recess can be seen in the base plate 4, within which cover plates 20 and the central screw, e.g., a raised countersunk screw 22, can be seen. To the right of the cover plates 20, an upper area of ​​the base plate 4 can be seen through the central recess. The screw 22 and the cover plates 20 are connected to the rotating plate 8 in a rotationally fixed manner.

[0086] The rotating base 2 according to the bottom view of Figure 2is designed without a rotation angle sensor. The wheel contact force of the motor vehicle wheel resting on the turntable 8 is determined by the weighing beam / beam sensors 18 and transmitted to the local display unit 14. This displays the wheel contact force on the display and transmits it via its local transmission unit to a unit of a wheel alignment device (not shown).

[0087] The rotating base 2 according to the bottom view of Figure 2 is thus designed to determine the wheel contact force of the motor vehicle wheel standing on the turntable 8, to display it on the display of the local display unit 14 and to send it via the transmitting unit of the local display unit 14 to a unit of the wheel alignment device, which includes the wheel contact force in the wheel alignment.

[0088] The local battery of the local display unit 14 supplies the display, the weighing beams 18 and the transmitter unit with energy.

[0089] The bottom view of the turntable 2 of Figure 3 corresponds to the underside of Figure 2 , whereby the rotating base 2 of Figure 3 additionally has an angle sensor 24 with lower cover 26 and an H-guide 28.

[0090] The H-guide 28 is designed in the form of two beams extending in the longitudinal direction of the vehicle and parallel rails extending between these two beams.

[0091] The outer beams are firmly connected to the rib structure 16 of the base plate 4, and they are each spaced outward from the central recess of the base plate 4 and arranged parallel to each other. Attached to the two parallel rails, which are firmly connected to the two beams and / or to the rib structure 16 of the base plate 4, is a substantially rectangular cover 26, which covers the angle sensor 24 positioned above it from below.

[0092] The angle sensor 24 can be designed as a centrally arranged encoder and can determine the angle of rotation of the rotating plate 8 or the steering angle of the vehicle wheel supported on the rotating plate 8. The angle sensor 24 is connected to the rotating plate 8 in a rotationally fixed manner, in particular by means of a screw, e.g., a raised countersunk head screw.

[0093] The local battery of the local display unit 14 supplies the display, the weighing beams 18, the rotary encoder 24 and the transmitter unit with energy.

[0094] The rotation angle / steering angle determined in this way is transmitted by the angle sensor 24 to the local display unit 14 via cable or wirelessly.

[0095] The rotating base 2 according to the bottom view of Figure 3is thus designed to determine both the wheel contact force of the motor vehicle wheel standing on the turntable 8 and the angle of rotation of the turntable 8 or the steering angle of the motor vehicle wheel standing on the turntable 8, to display them on the display of the local display unit 14 and to send these values ​​via the transmitting unit of the local display unit 14 to a unit of the wheel alignment device, which includes these values ​​in the wheel alignment.

[0096] For the further advantages and embodiments of the rotating base and the wheel alignment device with motor vehicle measuring station or motor vehicle lifting platform with at least one measuring head per side of the motor vehicle measuring station or motor vehicle lifting platform and with the rotating base arranged at at least one vehicle wheel position according to the exemplary embodiments described here, reference is made to the general description section in order to avoid repetition. List of reference symbols

[0097] 2Rotary base 4Base plate 6Round insert 8Rotary plate 10Securing pins 12Side handles 14Local display unit with battery and transmitter unit 16Ribbed structure 18Weighing beam 20Cover plates 22Screw 24Angle encoder 26Cover 28H-guide

Claims

1. A rotary base (2) for wheel alignment measurement for a motor vehicle measuring site or for a motor vehicle lifting platform, comprising a base member (4); a rotary plate (8) for supporting a vehicle wheel, which is rotatable relative to the base member (4); and wherein the rotary base (2) is mobile and wireless, with a local display unit (14) and with a local battery for supplying energy to the display; characterised in that the rotary base (2) comprises a weighing device (18) for measuring the vertical wheel force of the vehicle wheel; that the rotary base (2) comprises a local transmitter unit for sending the measured vertical wheel force by radio to a unit of a wheel alignment measurement device; that the local display unit (14) is also designed to display the measured vertical wheel force; that the local battery is also designed for supplying energy to the weighing device and the local transmitter unit; that the weighing device is designed in the form of two beam sensors (18) arranged on opposite sides of the base member, in particular on the front and back inside the base member (4), which extend over a large part of the inside of the base member (4); and that the beam sensors (18) in particular have two contact points each.

2. The rotary base (2) according to claim 1, wherein the rotary base (2) further comprises a rotation angle sensor (24) which is designed to determine the angle of rotation of the rotary plate (8) relative to the base member or the steering angle of the vehicle wheel supported on the rotary plate (8); and / or wherein the rotation angle sensor (24) is designed as a centrally arranged encoder; and / or wherein the local transmitter unit (14) is further designed to send the angle of rotation to a unit of a wheel alignment measurement device; and / or wherein the local display unit (14) is further designed to display the angle of rotation; and / or wherein the local battery (14) is further designed to supply energy to the rotation angle sensor (24).

3. The rotary base (2) according to any of the preceding claims, wherein the rotary base (2) is interchangeable between different positions of the motor vehicle measuring site or the motor vehicle lifting platform, without cable removal and cabling; and / or wherein the rotary base (2) can be removed without cable removal and can be installed at a position of the motor vehicle measuring site or the motor vehicle lifting platform without cabling.

4. The rotary base (2) according to any of the preceding claims, wherein the local display unit, the local battery and the local transmitter unit are accommodated in a common housing (14); and / or wherein the local display unit or the housing (14) is arranged on the outside of the base member (4) relative to the motor vehicle measuring site or the motor vehicle lifting platform; and / or wherein the local display unit or the housing (14) is arranged between two handles (12) on the outside of the base member (4) relative to the motor vehicle measuring site or the motor vehicle lifting platform.

5. The rotary base (2) according to any of the preceding claims, wherein the local display unit (14) is designed as an LCD or OLED display; and / or wherein the local display unit (14) is designed as a single-colour display and / or as a multi-display display.

6. The rotary base (2) according to any of the preceding claims, wherein the local transmitting unit (14) is designed to transmit the measured vertical wheel force and / or the angle of rotation / steering angle on at least one operating frequency to a unit of a wheel alignment measurement device; wherein the operating frequency is in particular an operating frequency of 433 MHz, 915 MHz, 920 MHz or 2.4 GHz.

7. The rotary base (2) according to any of the preceding claims, wherein the local transmitter unit (14) is designed such that different operating frequencies can be selected at which the measured vertical wheel force and / or the angle of rotation / steering angle is sent to a unit of a wheel alignment measurement device; and the selectable operating frequencies are in particular two or more of the operating frequencies 433 MHz, 915 MHz, 920 MHz and 2.4 GHz.

8. A wheel alignment measurement device, comprising a motor vehicle measuring site or a motor vehicle lifting platform, at least one measuring head per side of the motor vehicle measuring site or the motor vehicle lifting platform, which is arranged and designed to produce images of the wheels of the motor vehicle or of targets arranged on the wheels of the motor vehicle; wherein a rotary base (2) according to any of the preceding claims is arranged at at least one vehicle wheel position, in particular at at least the two front vehicle wheel positions; wherein the wheel alignment measurement device is designed such that it determines chassis-specific data such as geometric driving axis, camber, toe and wheel offset from these images; and that it determines from the vertical wheel force values received from the rotary bases (2) at least one of the values selected from the group consisting of weight per wheel, weight distribution per axle, difference between front and rear, weight distribution per side, difference between left and right, crossover weight, crossover weight in percent, wedge, wedge in percent, total weight, and current centre of gravity of the entire vehicle, and includes said value in the wheel alignment.

9. The wheel alignment measurement device according to claim 8, wherein the wheel alignment measurement device is further designed such that it determines the static weight distribution of the measured motor vehicle from the vertical wheel force values received from the rotary bases (2) and / or determines the centre of gravity of the measured motor vehicle and includes it directly in the wheel alignment for more precise determination of the chassis-specific data.

10. The wheel alignment measurement device according to claim 8 or 9, wherein a rotary base (2) each with a rotation angle sensor (24) according to any of claims 3 to 8 is arranged at at least one vehicle wheel position, in particular at at least the two front vehicle wheel positions; wherein the wheel alignment measurement device is further designed such that the rotation angle value or steering angle value received from the at least one rotary base (2) is included in the wheel alignment.