A device is disclosed, which includes: a charge portion with a plurality of piezoelectric elements embedded in a tire configured for a vehicle, a capacitor mechanically coupled to the tire and electrically coupled to the plurality of piezoelectric elements; a transmitter coil, mechanically coupled to the tire and electrically coupled to the capacitor through a discharge portion; wherein in response to an external radial pressure on the tire resulting from movement of the vehicle which causes a pressure on the plurality of piezoelectric elements, the plurality of piezoelectric elements produce an electrical charge on the capacitor, and wherein the discharge portion electrically connects the electrical charge on the capacitor to the transmitter coil to send electromagnetic power to the vehicle.

A system and method are disclosed for indirect tire wear modeling and implementation. Data storage network has stored thereon accessible finite element (FEA) models and corresponding direct tire wear models for each of various types of tires. A computing network is functionally linked to the data storage network and configured to iteratively develop a control model scaling values for various tire parameters for a selected control tire, from the types of tires having a corresponding accessible FEA model, to respective values for the tire parameters for an arbitrary type of tire lacking a corresponding accessible FEA model. For a provided first type of tire lacking a corresponding accessible FEA model, corresponding values are obtained for the tire parameters, and an indirect tire wear model is generated for the first type of tire based on the first control model, the corresponding direct tire wear model, and the obtained tire parameter values.

A tire assembly includes a tire for mounting on a vehicle, an elastic body disposed on an inner side of the tire, and a power generation body disposed between an inner surface of the tire and the elastic body. The power generation body includes a first member and a second member. The first member has a first insulating film forming a first surface. The second member has a second insulating film forming a second surface that faces the first surface and contacts the first surface. The elastic body biases the power generation body toward the inner surface of the tire.

A method for simulating the variation as a function of time in a physical system giving in real time the state of this system, the state of the system being defined by a set of variables that are periodically updated with a preset period (P), the method comprising updating the value of at least one of the variables (input variable), and estimating the value of at least one of the variables (estimated variable), via convergence of an iterative algorithm having as input datum the at least one input variable, in which method, if the algorithm has not converged at the end of the last iteration in a period called the current period, the current period having a duration shorter than or equal to the preset period (P), the iterative algorithm continues in the following period, taking up where it left off in the last iteration of the current period.