A wear amount estimation device estimates plural kinds of wear energy depending on each of an internal pressure of aircraft tires, a load acting on the aircraft tires, a velocity of an aircraft, a slip angle caused in the aircraft tires, and a braking force of the aircraft, in accordance with each of these elements and wear energy EFR of the aircraft tires in a state of a free rolling run The wear amount estimation device estimates the wear amount wear of the aircraft tires in accordance with each of the calculated wear energy and a wear resistance R indicating a relationship between predetermined wear energy and a predetermined wear amount.

Improvements in a vehicle tire wear extraction system, that places a tire wear extraction surface, comprising a flat or curved surface, behind the wheels of a vehicle tire in use. Fluid, e.g, electrically charged water to aid in the collection of debris that is pumped over the surfaces, and then filtered. The filtering removes the tire wear debris contaminant materials before they reach the ground. The system can include a self-contained stand-alone power supply to power the unit.

A tire pressure monitoring system (TPMS) includes a communication interface device configured to communicate with a target TPMS sensor module. The communication interface device include a radio frequency (RF) transceiver configured to generate at least one wake-up signal; an antenna array configured to transmit each wake-up signal as a directional RF beam; a processing circuit configured to monitor for a response signal in response to the antenna array transmitting the at least one wake-up signal; and a power amplifier configured to set a power of each wake-up signal according to an adjustable power setting such that the power of each subsequent wake-up signal is increased in discrete steps until the response signal is received by the RF transceiver.

A tire wear amount estimation system includes a step of acquiring a strain signal output from a strain sensor provided on the inner side surface or inside of the pneumatic tire, and a step of estimating the wear state of the tread portion of the pneumatic tire based on the strain signal output at the timing of kicking out from the road surface of the ground contact area of the tread portion corresponding to the strain sensor and a reference value of the strain signal.

A method for detecting a change in the rolling radius of a tire and a method for monitoring the state of the tire are based on the analysis of signals representing an actual speed of a vehicle on which the tyre is fitted and a speed of rotation of the wheel bearing the vehicle.

The invention concerns a system and a method for detecting potential damages to tires of motor vehicles due to impacts against/on obstacles.

A method for locating the position of each wheelset of a motor vehicle. Each wheelset including at least one wheel equipped with an electronic unit including at least one sensor to measure, for the wheel, the extent of the contact patch via which the tire is in contact with the ground, and a transmitter transmitting data regarding the extent of the tire contact patch to a control unit. The motor vehicle includes a load sensor for each of the wheelsets that measures and delivers to the control unit a value for the load supported by the associated wheelset. The method employing, on the one hand, data originating from a sensor able to determine the extent of the contact patch via which a tire is in contact with the ground and, on the other hand, a load sensor able to measure the load supported by a wheelset of the motor vehicle.

Systems and methods are provided herein for determining a tire characteristic of an electric vehicle's tires and notifying a user of the tire characteristic. This may be accomplished by an electric vehicle charging station (EVCS) receiving an image of an electric vehicle in response to detecting the electric vehicle. The EVCS can use the received image to determine a tire characteristic (e.g., tire tread depth) of one or more tires of the electric vehicle. The EVCS can then notify the user of the electric vehicle. For example, the EVCS may display a notification on a display of the EVCS. The EVCS may also recommend one or more locations where a user can take the electric vehicle to have the one or more tires serviced.

The disclosed technology includes a system comprising a tire-mounted inertial measurement unit (IMU). The IMU can be configured to measure linear acceleration data and angular velocity data associated with a tire, and the system can be configured to determine various indicators of tire health based on the linear acceleration data and angular velocity data. The system can be configured to determine a distance between the IMU and an outer rolling surface of the tire. The system can be configured to monitor changes in this distance over time, which can be indicative of tread wear over time. Accordingly, the system can be configured to monitor change in the tread depth over time such that the system is configured to monitor tread depth of the tire.

A tire data information system includes at least one tire that supports a vehicle and a processor. At least one sensor is mounted on the tire and is in electronic communication with the processor. The sensor measures a temperature and a pressure of the tire. A memory for storing tire identification information is in electronic communication with the processor. A tire wear state estimator generates a wear state of the tire and is in electronic communication with the processor. A tire wear rate estimator generates a wear rate of the tire and is in electronic communication with the processor. An antenna transmits the temperature, pressure, identification information, wear state, and wear rate of the tire to a display device that is accessible to a user of the vehicle. The display device includes indicators for showing the temperature, pressure, identification information, wear state, and wear rate to the user.