Method for identifying a vehicle tire

Abstract

A procedure with the following steps is proposed: a) Providing a vehicle with at least one vehicle tire, b) Arranging at least one vehicle tire on a drive-over device with a measuring system, wherein the measuring system comprises an optical system for evaluating a ground contact area (2,4) of the vehicle tire, c) Activation of the measuring system, whereby certain measured parameters of the ground contact area (2,4) are recorded and analyzed using the optical system, d) Comparing the recorded measurements of the ground contact area (2,4) with expected values ​​(1,3) for the vehicle tire, e) Generate a warning message if the measured value deviates significantly from the expected value.

Description

[0001] The invention relates to a method for identifying a vehicle tire.

[0002] In vehicles, especially commercial vehicles, it can happen that certain tires are not mounted in the correct position. For example, it can happen that tires intended for the front axle are accidentally mounted on the rear axle.

[0003] The object of the invention was to provide a method with which a vehicle tire on a vehicle can be easily identified.

[0004] The task is solved using a procedure with the following steps: a) Providing a vehicle with at least one vehicle tyre, b) arranging at least one vehicle tyre on a drive-over device with a measuring system, wherein the measuring system comprises an optical system for evaluating a ground contact area of ​​the vehicle tire, c) Activation of the measuring system, whereby the optical system records and analyses certain parameters of the ground contact area, d) comparing the recorded ground contact area measurements with expected values ​​for the vehicle tyre, e) Generate a warning message if the measured value deviates significantly from the expected value.

[0005] A particular advantage of the invention is that the new method allows for easy identification of vehicle tires mounted on vehicles. The vehicle tires are first placed on a drive-over device equipped with a measuring system. The tire's ground contact area is then recorded and evaluated by the measuring system. A simple evaluation then allows for determining whether an incorrect tire has been mounted at the respective tire position on the vehicle.

[0006] In an advantageous development of the invention, it is provided that the tire width of the ground contact area is recorded and analyzed using the optical system.

[0007] The tire width of the ground contact patch can be easily determined and evaluated.

[0008] In a further advantageous development of the invention, it is provided that the ratio of rubber material and empty volume in the ground contact area is recorded and analyzed with the optical system.

[0009] In commercial vehicles, the tire tread pattern of tires for the drive axle and the steering axle has a different ratio of rubber material to void volume. The measurement results can be used to easily determine whether the respective tire has been mounted on the wrong axle.

[0010] In a further advantageous development of the invention, it is provided that the optical system comprises a camera.

[0011] With a camera and connected image processing software, the ground contact area can be easily recorded and evaluated.

[0012] In a further advantageous development of the invention, it is provided that the warning message includes the information as to whether an identified vehicle tire has been mounted in an incorrect position on the vehicle.

[0013] This provides the user with information about which tires on the vehicle need to be replaced.

[0014] In a further advantageous development of the invention, it is provided that a tire module is arranged on the vehicle tire and the tire pressure is determined with the tire module, The wheel load is determined using the tire pressure and the geometric evaluation of the ground contact area.

[0015] This provides the user with easy-to-use information about the wheel load on the vehicle.

[0016] In a further advantageous development of the invention, it is provided that the drive-over device comprises a scale with which the wheel load is measured, wherein the tire pressure of the vehicle tire is indirectly determined by means of a geometric evaluation of the ground contact area.

[0017] The invention is described in more detail below using an exemplary embodiment.

[0018] It shows: Fig. 1: A measurement of the ground contact area. Fig. 2: Another measurement of the ground contact area.

[0019] The Fig. 1 shows an embodiment.

[0020] In the Fig. On the left side, the expected value 1 for the ground contact patch of a vehicle tire A is shown. This expected value is stored in a database accessible by the measurement system. Specific expected values ​​are stored in the database for each vehicle tire for a specific vehicle.

[0021] The vehicle is positioned with its tires on a drive-over device equipped with a measuring system. The measuring system then measures and evaluates the ground contact patch of the vehicle tire. The evaluation can, for example, include the determined ground contact patch 2 of vehicle tire A. The measurement shows that the expected value 1 for the ground contact patch matches the determined ground contact patch 2. Vehicle tire A has thus been identified, and no anomalies were detected.

[0022] The Fig.Figure 2, on the other hand, shows the situation where a vehicle tire was mounted in the wrong position by a vehicle. The expected value 3 for the ground contact patch does not match the determined ground contact patch 4 for vehicle tire B. The width of the determined ground contact patch 4 is significantly wider than the expected value. With this measurement, for example, a warning message would be sent to the user that vehicle tire B was mounted in the wrong position by the vehicle. List of reference symbols 1 Expected value for the ground contact area of ​​vehicle tires A 2 Determined ground contact area of ​​vehicle tires A 3 Expected value for the ground contact area of ​​vehicle tires B 4 Determined ground contact area of ​​vehicle tires B

Claims

[1] Method for identifying a vehicle tire comprising the following steps: a) Providing a vehicle with at least one vehicle tyre, b) arranging at least one vehicle tyre on a drive-over device with a measuring system, wherein the measuring system comprises an optical system for evaluating a ground contact area (2, 4) of the vehicle tyre, c) Activation of the measuring system, whereby certain measured variables of the ground contact area (2,4) are recorded and analyzed using the optical system, d) comparing the measured values ​​of the ground contact area (2,4) with expected values ​​(1,3) for the vehicle tyre, e) Generate a warning message if the measured value deviates significantly from the expected value. [2] Method according to claim 1, characterized by that the optical system records and analyses the tyre width of the ground contact patch (2,4). [3] Method according to one of the preceding claims, characterized by that the optical system records and analyses the ratio of rubber material to empty volume in the ground contact area (2.4). [4] Method according to one of the preceding claims, characterized by that the optical system includes a camera. [5] Method according to one of the preceding claims, characterized by that the warning message includes information as to whether an identified vehicle tire has been mounted in an incorrect position on the vehicle. [6] Method according to one of the preceding claims, characterized by that a tire module is arranged on the vehicle tire and the tire pressure is determined with the tire module, wherein the wheel load is determined with the tire pressure and the geometric evaluation of the ground contact area (2,4). [7] Method according to one of the preceding claims, characterized bythat the drive-over device comprises a scale with which the wheel load is measured, wherein the tyre pressure of the vehicle tyre is indirectly determined by means of a geometric evaluation of the ground contact area (2,4).

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