Provided is a tire including a pigment mixture that is capable of changing color with a change in temperature and/or light, wherein one or more of a tread part, a sidewall part, and a spoke part of the tire include a color-changing part including the pigment mixture, and the pigment mixture includes two or more selected from the group consisting of a temperature-sensitive pigment, a light-sensitive pigment, and a photoluminescent pigment.

A method and computer program product are disclosed. The method includes tracking a distance travelled on a set of tires, determining a threshold, determining whether the distance travelled has exceeded the threshold, and notifying the user that the distance travelled has exceeded the threshold. The computer program product includes code to perform tracking a distance travelled on a set of tires, determining a threshold, determining whether the distance travelled has exceeded the threshold, and notifying the user that the distance travelled has exceeded the threshold.

A computer-implemented method, an apparatus and a computer-program product for determining a quality of a tire. The apparatus includes a sensor array configured to obtain a footprint of the tire, and a processor. The processor determines an intensity profile of the footprint, locates an edge of a tread rib of the tire from the change in intensity, and determines from the location of the tread rib edge a relative quality of the tire.

A vehicle monitoring system monitors a vehicle characteristic and, from the monitoring, determines the state of a vehicle component. The system may set an alert and may communicate that alert to a user or supervisory authority. The state of the vehicle component may relate to a vehicle tire and to the potential delamination of a tire.

Systems for inspecting and servicing a tire assembly are provided. In one embodiment, a tire assembly service cart is provided that includes a tire assembly support structure. The tire assembly support structure may include a side support member that is positioned to support a side of the tire assembly. The tire assembly support structure may also include a first bottom support member positioned to support a bottom portion of the tire assembly. The side support member may include a first roller and the first bottom support member may include a second roller. Further, the first and second rollers may be positioned to allow the tire assembly to rotate around a rotation axis while supported by the tire assembly support structure.

Embodiments disclosed herein relate to a thin, light, and portable system for measuring one or more parameters of a contact patch between a tire and a surface. The system may be configured with an array of sensors capable of being removable fixed to the surface. The array of sensors may measure the one or more parameters of the contact patch between the tire and the surface. Moreover, the system may include a scanner configured to interpret the measurements from the array of sensors as data and store the data.

A method of measuring thickness of a material generally includes applying an oscillating signal to a first electrode at a fixed frequency, passing the signal through the material to a second electrode, and measuring the magnitude of the signal reflected back to the first electrode. The thickness of the material is determined based on the measured magnitude of the reflected signal by: 1) comparing the determined magnitude to a predetermined baseline to establish a difference; and 2) identifying the thickness based on the difference. Related apparatuses are also disclosed. The material may be a vehicle tire.

A drive-through vehicle inspection system acquiring information from engraved markings on the tire sidewalls of a moving vehicle. Optical imaging sensors disposed on opposite sides of the vehicle acquire images of the sidewall surfaces for each passing wheel assembly. The acquired images are evaluated by a processing system configured to identify, within the acquired images, visible markings engraved into the tire sidewall surfaces which include at first portion having a first optical reflectivity, and a second portion having a second optical reflectivity which is different from the first optical reflectivity. Each identified marking is decoded to retrieve data stored therein, representative of the tire, wheel assembly, and/or associated vehicle onto which the wheel assembly is installed. The retrieved data is incorporated into an inspection report and/or utilized by the vehicle inspection system to access vehicle-specific information contained within an indexed database.

Methods of measuring a thickness of a material are disclosed. An oscillating signal at a measurement frequency is applied to a circuit including an inductive component and a capacitive component provided using a pair of capacitive sensor electrodes adjacent the material. The measurement frequency is less than a resonant frequency of the circuit, and the resonant frequency is based on the inductive component and the capacitive component. Information regarding a value of a measured parameter is generated based on applying the oscillating signal at the measurement frequency to the circuit. A value of the measured parameter is related to the thickness of the material.

A chucking apparatus for positioning a tire in a tire uniformity machine includes an upper chuck assembly, a lower chuck assembly operative with the upper chuck assembly to capture a tire therebetween, and a dual piston cylinder coupled to the lower chuck assembly which moves the tire into engagement with the upper chuck assembly. The dual piston cylinder has an axially extending inner piston rod from which axially extends a field-replaceable inner piston stem.