METHOD FOR IMPROVING A TIRE SYSTEM

Description

[0001] The invention relates to a method for improving a tire system and a tire system.

[0002] The invention relates to a method for improving a tire system, comprising the following steps: Providing a tire; providing an electromagnetic transmitting and receiving device; providing a device for determining a degree of uniformity of a tire; determining an arrangement region on or in the tire; arranging the electromagnetic transmitting and receiving device on or in the arrangement region of the tire; determining the degree of uniformity of the tire; generating information about the degree of uniformity.

[0003] The information is preferably generated by means of the device.

[0004] Uniformity can, for example, be geometric uniformity and / or uniformity related to mass distribution within the tire. It can also be uniformity related to force development within the tire. Overall, uniformity can be static or dynamic.

[0005] Methods for improving a tire system are known from the prior art. Tire systems comprise, in particular, a tire and an electromagnetic transmitting and receiving device. It is also known from the prior art to mount electromagnetic transmitting and receiving devices on or in a tire.

[0006] The state of the art is formed, for example, by KR 100715864 B1, DE 10 2013 225 891 A1 and WO 2012 / 074527 A1.

[0007] Furthermore, it is also known from the prior art to determine the degree of tire uniformity. Based on the degree of tire uniformity, the tire can be technically evaluated, for example, with regard to its driving behavior. When determining the degree of uniformity, it is possible to determine, in particular, the extent to which a tire, in accordance with its approximate torus shape, deviates from an ideal rotational symmetry of the torus shape. Based on the degree of uniformity, for example, tire imbalances can be detected and determined. The information on the degree of tire uniformity can preferably be used to improve the tire or the tire system.

[0008] In prior art methods for improving a tire system, information about the degree of tire uniformity is stored, for example, by means of a marking on the tire, which is applied to a surface of the tire. This marking could be removed or damaged during a tire processing process. The information about the degree of tire uniformity could thus be lost.

[0009] The invention is therefore based on the object of providing an improved method for improving a tire system by means of which the information about the reference point can be reliably stored.

[0010] The signal is preferably generated and transmitted by means of the device.

[0011] Due to the fact that the method according to the invention comprises these additional steps, the information regarding the degree of uniformity is machine-readable or electronically readable and permanently stored. The probability of loss of the information, for example, through the loss of a sticker bearing the information, is thereby reduced.

[0012] Thus, an improved method for improving a tire system is provided.

[0013] An example of an electromagnetic transmitting and receiving device is an RFID device. RFID stands for Radio Frequency Identification, which means identification using electromagnetic waves. In this context, "electromagnetic" means "electromagnetically acting," meaning that the electromagnetic transmitting and receiving device is designed to send and receive signals using electromagnetic waves.

[0014] The invention further relates to a tire system comprising a tire and an electromagnetic transmitting and receiving device, and in particular to a database. The tire system is intended for carrying out a method according to the invention.

[0015] The tire can be, for example, a car tire, a truck tire or a two-wheel tire.

[0016] The problem is solved by the method steps of claim 1.

[0017] Further advantageous embodiments of the present invention are the subject of the subclaims.

[0018] According to a preferred embodiment of the present invention, the receiver device is a database or the electromagnetic transmitting and receiving device.

[0019] According to a next preferred embodiment of the present invention, tire identification information is stored in the memory element of the receiver device, wherein other information stored in the memory element can be uniquely assigned to the tire based on the tire identification information.

[0020] The fact according to the invention, according to which tire identification information is stored in the memory element of the receiver device, wherein other information stored in the memory element can be uniquely assigned to the tire on the basis of the tire identification information, reduces, for example, the probability of incorrect assignment of the information on the degree of uniformity to a non-associated tire.

[0021] According to a next preferred embodiment of the method according to the invention, the tire identification information is stored in the memory element of the electromagnetic transmitting and receiving device linked to the information about the uniformity and / or the tire identification information is stored in the memory element of the database linked to the information about the uniformity.

[0022] For example, the tire identification information stored in the electromagnetic transmitting and receiving device can be associated with the uniformity information. Both pieces of information can be stored linked together in the electromagnetic transmitting and receiving device or linked together in the database.

[0023] According to the present invention, the method comprises the further steps: Determining at least one significance point of the uniformity of the tire based on the degree of uniformity; detecting a spatial position of the at least one significance point on or in the tire; storing information about the spatial position of the at least one significance point in the memory element.

[0024] The at least one significant point is preferably determined by means of the device. The spatial position of the at least one significant point is preferably detected by means of the device.

[0025] At least one significant point is a location where a non-uniformity exists. For example, this could be a location on the tire where the tire has a total maximum weight, or the significant point could be the center of gravity of the tire, based on the tire's rotational axis. Or it could be a location where a first or higher harmonic of a non-uniformity measurement on the tire is present.

[0026] According to a next preferred embodiment of the present invention, the spatial information about the significance point is a position spatially related to the arrangement area of ​​the electromagnetic transmitting and receiving device.

[0027] According to a next preferred embodiment of the present invention, the spatial information about the significance point is a position spatially related to an information area on the tire.

[0028] The information area is a particularly optically readable surface structure of the tire. In particular, the information area is a DOT marking on the tire.

[0029] According to a next preferred embodiment of the present invention, the following steps are carried out to determine the arrangement area: Providing a readout device, wherein the readout device is provided for determining a transmission capacity of the electromagnetic transmitting and receiving device; determining a transmission capacity of the electromagnetic transmitting and receiving device by means of the readout device; determining the arrangement area as a function of a characteristic transmission capacity.

[0030] The transmission capability is, for example, the ability to emit an electromagnetic signal. The transmitted electromagnetic signal is, for example, a response signal that is transmitted based on a first received signal that was sent from the reading device to the electromagnetic transmitting and receiving device.

[0031] The transmitted signal can, for example, be characterized by having a maximum signal strength or a characteristic modulation.

[0032] Further features, advantages and details, to which the invention is not limited in its scope, will now be described in more detail with reference to the drawings.

[0033] It shows: Fig. 1 : A schematic representation of a tire system according to the invention according to a first embodiment; Fig. 2 : A schematic representation of a tire system according to the invention according to a second embodiment; Fig. 3 : A schematic representation of a tire system according to the invention according to a third embodiment.

[0034] In the Figure 1 A tire system 1 according to the invention is schematically shown. The tire system 1 comprises a tire 2 and an electromagnetic transmitting and receiving device 3.

[0035] The tire system 1 is suitable for carrying out a method according to the invention.

[0036] Tire 2 is shown in a radial section view. Tire 2 is rotatable about a rotation axis 4 in a direction of rotation 5.

[0037] The tire 2 has an arrangement region 6. The electromagnetic transmitting and receiving device 3 is arranged in the arrangement region 6 of the tire.

[0038] Tire 2 further has a significance point 7. Significance point 7 represents a location on tire 2 at which a certain degree of uniformity of tire 2 exists.

[0039] Information about the significance point 7 on the tire 2, which is information about the spatial position of the significance point 7 on the tire 2, has been stored in a memory element 8 of the electromagnetic transmitting and receiving device 3. This information can alternatively or additionally be stored in a memory element 8 of a database 18.

[0040] Also shown is a tire center plane 11 of the tire 2. The tire center plane 11 is a plane of symmetry of the tire 2. The rotation axis 4 is, in particular, perpendicular to the tire center plane 11.

[0041] The tire 2 has a tire surface 10 facing away from the tire 2.

[0042] In particular, a transmission capability of the electromagnetic transmitting and receiving device 3 can be determined by means of a readout device 19, wherein the readout device 19 is provided for determining a transmission capability of the electromagnetic transmitting and receiving device 3. A position of the arrangement region 6 can be determined depending on a characteristic transmission capability.

[0043] In the Figure 2A tire system 1 according to the invention is shown schematically according to a further embodiment. The illustration shows the tire system 1 in a view rotated by 90° to the view of the tire system according to the illustration in the Figure 1 The components of the tire system 1, in particular the tire 2, the electromagnetic transmitting and receiving device 3 and the significance point 7, are as shown in the Figure 2 projected onto the tire center plane 11. The projection direction is parallel to the rotation axis 4.

[0044] The rotation axis 4 intersects in particular a geometric center 12 of the tire 2. A first connecting line 14 runs from a geometric center 13 of the electromagnetic transmitting and receiving device 3 to the geometric center 12 of the tire 2.

[0045] A second connecting line 15 runs from the significance point 7 to the geometric center 12 of the tire 2.

[0046] The first connecting line 14 and the second connecting line 15 enclose an angle 16.

[0047] The fact whether the first connecting line 14 lies in front of the second connecting line 15 in the direction of rotation 5, as well as the angle 16, represent information about the spatial position of the significance point 7 on the tire 2. This is a spatial position of the significance point 7 that is spatially related to the position of the electromagnetic transmitting and receiving device 3. This information is stored in the memory element 8.

[0048] In the Figure 3 A tire system 1 according to the invention is shown schematically according to a further embodiment. In contrast to the representation in the Figure 2The first connecting line 14 is a connection between a geometric center 17 of an information area 9 of the tire 2 and the geometric center 12. The information area 9 is an area formed on the tire surface 10. This can be a visually visible change in the structure of the tire surface 10. For example, the information area 9 can be the area in which the DOT number of the tire 2 is displayed.

[0049] The fact whether the first connecting line 14 lies in front of the second connecting line 15 in the direction of rotation 5, as well as the angle 16, represent information about the spatial position of the significance point 7 on the tire 2. This is a spatial position of the significance point 7 that is spatially related to the position of the information area 9. This information is stored in the memory element 8. List of reference symbols

[0050] 1Tire system 2Tire 3Electromagnetic transmitting and receiving device 4Axis of rotation 5Direction of rotation 6Arrangement area 7Point of significance 8Storage element 9Information area 10Tire surface 11Tire center plane 12Geometric center of the tire 13Geometric center of the electromagnetic transmitting and receiving device 14First connecting line 15Second connecting line 16Angle enclosed by the first and second connecting lines 17Geometric center of an information area 18Database 19Reading device

Claims

1. Method for improving a tyre system (1), comprising the following steps: - providing a tyre (2); - providing an electromagnetic transmitting and receiving apparatus (3); - providing an apparatus for determining a degree of uniformity of a tyre (2); - determining an arrangement region (6) on or in the tyre (2); - arranging the electromagnetic transmitting and receiving apparatus (3) on or in the arrangement region (6) of the tyre (2); - determining the degree of uniformity of the tyre (2); - generating information about the degree of uniformity, characterized in that the method comprises the following further steps: - generating a signal, wherein the signal carries the information about the degree of uniformity; - transmitting the signal to a receiver apparatus (3, 18), wherein the receiver apparatus (3, 18) has a memory element (8), wherein the receiver apparatus (3, 18) is the electromagnetic transmitting and receiving apparatus (3); - storing the information about the degree of uniformity in the memory element (8); - determining at least one point of significance (7) of the uniformity of the tyre (2) on the basis of the degree of uniformity; - detecting a spatial position of the at least one point of significance (7) on or in the tyre (2); - storing information about the spatial position of the at least one point of significance (7) in the memory element (8).

2. Method according to Claim 1, characterized in that tyre identification information is stored in the memory element (8) of the receiver apparatus (3, 18), wherein other information stored in the memory element (8) can be uniquely assigned to the tyre (2) by means of the tyre identification information.

3. Method according to the preceding claim, characterized in that the tyre identification information is stored in the memory element (8) of the electromagnetic transmitting and receiving apparatus (3) in a manner linked to the information about the uniformity.

4. Method according to the preceding claim, characterized in that the spatial information about the point of significance (7) is a position spatially related to the arrangement region (6) of the electromagnetic transmitting and receiving apparatus (3).

5. Method according to Claim 4, characterized in that the spatial information about the point of significance (7) is a position spatially related to an information region (9) on the tyre (2).

6. Method according to one of the preceding claims, characterized in that the following steps are carried out in order to determine the arrangement region (6): - providing a readout apparatus (19), wherein the readout apparatus (19) is provided for determining a transmitting capacity of the electromagnetic transmitting and receiving apparatus (3); - determining a transmitting capacity of the electromagnetic transmitting and receiving apparatus (3) by means of the readout apparatus (19); - determining the arrangement region (6) on the basis of a characteristic transmitting capacity.

7. Tyre system (1), comprising a tyre (2) and an electromagnetic transmitting and receiving apparatus (3) and in particular a database (18), characterized in that the tyre system (1) is provided for carrying out a method according to one of the preceding claims.