The invention relates to a method for determining at least one tyre-specific characteristic of a tyre (15) of a motor vehicle (1), in which an area of the tyre (15) of the motor vehicle (1) is captured by means of at least one vehicle-side camera (3, 6), wherein a tyre wall (16) of the tyre (15) with a tyre inscription (19) is captured as the area by means of the at least one camera (3, 6), and the tyre inscription (19) is identified by means of an evaluation device (13) and the at least one tyre-specific characteristic is determined on the basis of the tyre inscription (19). The invention also relates to a driver assistance system (2) and a motor vehicle (1).

A positioning device for keeping a monitoring device for tyres of vehicle wheels in an installation condition, includes: two separate active portions, each having a main surface the shape of which matches that of a respective portion of an outer surface of a monitoring device, said separate active portions being adapted to cooperate with at least base portions of said monitoring device so that, when said positioning device is associated with said monitoring device, the base portions of said monitoring device are maintained at a given mutual distance by said active portions.

A positioning device for keeping a monitoring device for tyres of vehicle wheels in an installation condition, includes: two separate active portions, each having a main surface the shape of which matches that of a respective portion of an outer surface of a monitoring device, said separate active portions being adapted to cooperate with at least base portions of said monitoring device so that, when said positioning device is associated with said monitoring device, the base portions of said monitoring device are maintained at a given mutual distance by said active portions.

In an embodiment, a system for wear monitoring, includes a wear surface, a metallic reflector embedded in the wear surface, a radio-wave transmitter, and a radio-wave receiver. The metallic reflector reflects radio waves transmitted by the radio-wave transmitter for detection by the radio wave receiver. Attenuation of the radio waves between transmission by the radio-wave transmitter and detection by the radio-wave receiver indicates a degree of wear of the wear surface.

A device for measuring a tire ground state includes a traveling surface, a tire drive unit grounding a tire on the traveling surface and rolls the tire, a measuring sheet mounted to a partial area of the traveling surface for measuring the tire ground state, a protection sheet covering the measuring sheet, and a backward and forward tensile force application mechanism applying a tensile force along a tire forward traveling direction to the protection sheet. A space conducting the protection sheet to a portion below the traveling surface is formed in at least one of a delay side and an advance side of the measuring sheet in the tire forward traveling direction on the traveling surface, and the backward and forward tensile force application mechanism is structured such as to pull at least one end of the protection sheet in the tire forward traveling direction from below the traveling surface.

A device for measuring a tire ground state includes a traveling surface, a tire drive unit, a measuring sheet, a protection sheet which covers the measuring sheet, and a backward and forward tensile force application mechanism. A space conducting the protection sheet to a portion below the traveling surface is formed in at least one of a delay side and an advance side of the measuring sheet in the tire forward traveling direction on the traveling surface. The backward and forward tensile force application mechanism has a roller which is arranged within the space, and is structured such as to pull at least one end of the protection sheet fixed to the roller in the tire forward traveling direction from the below of the traveling surface by rotating the roller.

A tire holding apparatus is provided with a first support part for supporting a tire, a second support part for supporting the tire, and an air supply and removal part for supplying and removing air from the inside of the tire. The second support part has a protrusion that protrudes toward the first support part. The air supply and removal part has a first flow path for allowing air to flow, a second flow path for allowing air to flow from an opening formed at the leading end of the protrusion to the inside of the tire, and a collection part that is attached to the opening and collects foreign matter that has been mixed into the second flow path from the inside of the tire.

Devices are taught for filling a tire with air, gas or a liquid and repairing the tire. In one embodiment, the tire repair tool discloses an transmittal control section, with the transmittal control section comprising a proximal end, the proximal end having an opening a distal end, with the distal end having a centralized opening to align with a punctureable seal at a proximal end of a gas cartridge; a passageway positioned between the proximal end of the gas cartridge and the distal end; and a puncture tool which can puncture the punctureable seal of the gas cartridge. The puncture tool is positioned at the distal end of the transmittal control section along the air passage way. An insertion tube comprises an air inlet at a distal end of the insertion tube which is connected to the opening of the proximal end of the transmittal control section. A gas outlet passes air from a gas cartridge through the air passage way through the transmittal control section into the air inlet of the insertion tube and through the gas outlet.

A sensor device for tire inspection is provided. The sensor device is configured for removable placement upon or near the surface of the tire. The sensor device includes one or more tire inspection sensors configured to inspect e.g., the condition of one or more components or portions of the tire. The sensor device also includes one or more proximity sensors configured to detect whether the sensor device is in proper proximity of the tire such that the one or more tire inspection sensors can operate correctly.

A tire inspection method includes: capturing a transmission image of a tire including a steel chafer at a bead portion; generating an image at an inspection device from the captured image of a full revolution of the tire with the steel chafer portions extracted using a spatial filter generated in accordance with an incline of the wires of the steel chafer; detecting a locus of a front side edge and a back side edge of the steel chafer; generating an image from the captured image with the steel chafer portions removed; detecting a locus of a turned-up edge of a carcass from this image; and determining at the inspection device the position of the carcass to be appropriate or not on the basis of the locus of the turned-up edge of the carcass.