This disclosure relates to a method and system o real time prediction of tire remaining useful life using a tire digital twin. Herein, the digital twin of the tire monitors a plurality of tires while accounting for runtime as well as parking operation of tires. During runtime, tire goes through multiple operational changes, therefore, the system is configured to estimate the operational changes. The estimation is done in the form of index, which is compared with the manufacturers' recommended value. Similarly, while vehicle is parked, tire still goes through changes which play an important role in its overall health, like, long pending wheel rotation can lead to flat spot. Tire inflation can change owing to cool down effect as well as uncontrolled natural leakages. Further, these parameter indexes are clubbed together to calculate the health index of the tire, which is used to estimate the tire's current remaining useful life.

A method and system for adjusting vehicle operations. Wheel sensors are disposed to detect parameters associated with treads of wheels and parameters associated with road conditions. An electronic control unit receives information from the wheel sensors. The electronic control unit determines a performance metric of the wheels based on the parameters associated with treads. The electronic control unit receives determine adjustments for operation of the vehicle based on the performance metric and the parameters associated with road conditions.

This disclosure provides a tire formed of a body having multiple plies and a tread that surrounds the body. In some implementations, the plies and/or the tread include a resonator that generates a resonant signal in response to being activated by locally generated power or by an externally generated excitation signal. Multiple resonators formed of carbon-containing materials are distributed in the plies and/or tread to respond to changes to the tire by altering a characteristic of the resonant signal. Such alterations include frequency shifting of the resonant signal and/or attenuation of the resonant signal. The resonator can be configured to resonate at a first frequency when a structural characteristic of a respective ply or tread is greater than a level, and to resonate at a second frequency different than the first frequency when the structural characteristic of the respective ply or tread is not greater than the level.

A power generation body includes a first member, a second member, and a cushioning material. The first member includes a first insulating film that forms a first surface. The second member includes a second insulating film that forms a second surface that opposes the first surface and comes into contact with the first surface. The cushioning material is arranged on a side opposite to the first surface of the first member. The first member and the second member are configured such that a real contact surface area between the first surface and the second surface area changes according to pressure applied to the first member and the second member, and one of the first insulating film and the second insulating film is positively charged and the other is negatively charged due to the real contact surface area changing.

A system is provided for estimating a tread depth of a tire supporting a vehicle. The tire includes a pair of sidewalls that extend to a circumferential tread. The system includes a drive over reader, which includes a housing. At least one sensor is mounted in the housing to generate an image of the tire, which may be an image of the tire footprint or an image of the tread along a lateral line or section, and the tread depth is determined from the image. At least one piezoelectric actuator is mounted on the housing and is electrically connected to the at least one sensor to actuate the at least one sensor. A method for estimating a tread depth of a tire supporting a vehicle is also provided.

A method of detecting degradation of a real tire of a wheel includes the steps of: acquiring at least one first three-dimensional object representative of the shape of the real tire by using an electronic appliance including at least one three-dimensional sensor, the first three-dimensional object being made up of a set of capture points; determining the position of the center point of the real tire from the set of capture points; registering the first three-dimensional object to obtain a second three-dimensional object; transforming the second three-dimensional object in order to obtain one or more two-dimensional objects; and analyzing the two-dimensional object(s) in order to detect degradation of the real tire.

A method for obtaining the deformation of a tire casing subjected to a load, rotating at a rotational speed W, comprises the following steps: acquiring a signal comprising the amplitude of the acceleration in the direction normal to the crown when running at the rotational speed W; delimiting the signal over a number of wheel revolutions, so as to construct a wheel revolution signal; determining a reference acceleration; defining a first energy density S which is a function of the wheel revolution signal, and of the reference acceleration, and which is denoted S.sup.+ when the wheel revolution signal is above a threshold value A, or is denoted S.sup.− when the wheel revolution signal is below or equal to said threshold value A; and identifying the deformation generated by the load as a function of the reference acceleration and of the first energy density S.

A method for obtaining the deformation of a tire casing subjected to a load, rotating at a rotational speed W, comprising: Phase 1—Delimiting the first signal over a whole number of wheel revolutions to construct a first wheel revolution signal; and Determining a reference acceleration; and Phase 2—Delimiting the signal over a whole number of wheel revolutions to construct a second wheel revolution signal; Defining at least a first energy density S which is a function of the second wheel revolution signal, and of the reference acceleration, and which is denoted S+ when the wheel revolution signal is above a threshold value A, or is denoted S− when the wheel revolution signal is below or equal to said threshold value A; and Identifying the deformation as a function of the reference acceleration and of the first energy density S.

A wear evaluation method for evaluating the wear of a vehicle wheel tire (3) having a tread with a crown area, the method comprising the following measurement steps: causing a transducer (1) positioned on the vehicle in the proximity of the tire (3) to emit a first ultrasonic signal (S1); acquiring an electrical measurement signal produced by said transducer when it receives a second ultrasound signal (S2) resulting from the first ultrasonic signal being reflected by a metal target (4) incorporated in the thickness of the crown area of the tire; measuring at least one parameter of the electrical measurement signal; evaluating the wear of the tire from said parameter.

A systematized multi-point sensors unit for a tire and a tire having the same are provided. More specifically, the systematized multi-point sensors unit includes: a sensor module composed of a plurality of sensors and attached onto an inner surface of a tire to monitor conditions of a tire and a road surface, and a connection member for connecting the plurality of sensors by wire, wherein the plurality of sensors are connected to each other by wire and arranged in a line in a manner of being perpendicular to a traveling direction of the tire.